EB33-P1218-F [KEMET]
SMPS Transformer,;
| 型号： | EB33-P1218-F |
| 厂家： | 
KEMET CORPORATION |
| 描述： | SMPS Transformer, |
| 文件： | 总25页 (文件大小：940K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Transformer
Vol.
7
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Contents
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INTRODUCTION
3
4
5
5
9
Example of Use
Materials for Design
ꢀ������������������������������������
(1) Forward Converter Method
ꢀ
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(2) Flyback Method
Transformers/Choke Coils Series
12
13
21
ꢀ�����������������������������������������
List of Core Set Shapes
ꢀ����������������������
Custom Transformer Series (Through-hole type)
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
INTRODUCTION
As semiconductor devices become ever more advanced, the demand for thinner, more
compact devices with higher efficiency and functionality are increasing. Owing to
technologies such as high-density mounting for the switching power supplies,
requirements for transformers and chokes are becoming increasingly rigorous. Under the
motto "Reliability based on high quality material," TOKIN uses selected excellent materials
to provide diverse transformers and choke coils that can meet the requirements for a wide
range of applications, such as small toroidal structure types with little heat effect and
minimal emission noise to peripheral parts.
Transformer VOL.07
3
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Example of Use
Flyback Method
Forward Method
Main Transformer
(EI, EE, ER, FPQ)
Smoothing Choke Coil
(EI, OH, SHP)
Main Transformer
(EI, EE, ER, FPQ)
Local Regulator
Local Regulator
Normal Mode Line Filter (SN)
Normal Mode Line Filter (SN)
Driving Transformer
Output 2
Output 2
(EI, EE)
Normal Choke Coil
(SBC)
Normal Choke Coil
(SBC)
Output 1
Input
Input
Output 1
Common Mode Line
Filter (SC, SU, SS)
Common Mode Line
Filter (SC, SU, SS)
Control Circuit
Auxiliary
Power
Supply
Photo
Coupler
Auxiliary Power Supply Transformer (EI, EE)
Transformer VOL.07
ꢀ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Materials for Design
{
Design Method
At present, there are two major types of circuits for the typical
switching power supply units: the forward converter method and
the flyback method. (See Figure 1.)
The following section introduces the design method of the high
frequency transformers for each of the two types mentioned
above.
Forward Converter Method
Flyback Method
Figure 1 Circuit Method of Switching Power Supply
(1)Forward Converter Method
1)Transformers
i
1
i
2
D
1
EL iout
T
e
1
n
1
n
2
e
2
E
0
C
T
r1
V
C-E Voltage Waveform
B
E
0
Ton
Toff
T
Figure 2 Circuit Diagram of Forward Converter
Figure 2 is the basic circuit diagram of the forward converter
method.
When the bias (pulse) of forward direction is applied to the base
of the switching transistor (Tr1), Tr1 is ON, e1 (V) is impressed to
the primary windings n1 of the transformer "T", and at the same
time the voltage as found by the following formula is generated
to the secondary windings n2:
e2 = 2 ҂ e1(V) ......................................................ቢ
n
n1
e1: Input voltage of transformer
e2: Output voltage of transformer
n1: Number of primary windings
n2: Number of secondary windings
Transformer VOL.07
ꢁ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
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●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Therefore, the output voltage is found by the ratio of n1 and n2.
Also, from the law of equal ampere turns, the following formula
is obtained:
i2 = n1 ҂ i1 (A) ......................................................ባ
n2
The primary winding is determined by the following formula:
e1
ͬB ҂
҂ 104 ............................................ቤ
҂ Ton
n1 =
Ae
Ton: Transistor (Tr1) "on" time (sec)
ͬB : Usage magnetic flux density (T)
Ae : Core effective cross-section (cm2)
At this point it is important to be aware of the value of ͬB. It
must be set especially carefully, because when the magnetic
flux is saturated, the inductance drops abruptly, in addition to
the core loss and temperature rise. The magnetic flux density
available for use is within the range from effective saturation
magnetic flux density (Brms) to the effective saturation residual
coercive force (Brms). However, it is necessary to set this value
ͬB as shown below, considering the inevitable factors such as
calorific value of the core:
1. Set the upper limit of allowable temperature of core heat.
2. The energy (Wattage) equivalent to the core loss at that
time (set in the previous step 1).
3. The next time that same loss occurs and at what value (T).
According to the above stated procedure, the appropriate ͬB
can be set.
Thecharacterisics of the TOKINBH2compoundareshown
in Figures 3 and 4.
Then, determine the output voltage "e2" of the transformer from
the desired output voltage "Eo".
Eo
duty
e2:
+ (ed + el) ..........................................ብ
duty: Ton / T T = Ton + Toff
ed : Output rectification diode loss voltage (V)
el : Line loss voltage (V)
The number of secondary windings is determined by formula ቢ
e2 • n1
n2 =
e1
When the number of secondary windings is determined, again
modify the value of "n1", the number of primary windings:
e1 • n2
e2
n1 =
............................................................ቦ
At that time, it may be very convenient if the values ͬB, core
loss and temperature rise of core are found.
Then determine the current i2 applied to the secondary wind-
ings:
iout
duty
i2 =
............................................................ቧ
The primary current is determined by formula w.
Transformer VOL.07
ꢂ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
n2 • i2
n1
i1 =
The material of windings is determined by the following formula:
4 • i
ͳ • ȏ
dø =
........................................................ቨ
dø : Diameter of winding (mmø)
: Density of current (A/mm2 )
: Average current (A)
ͳ
i
When the current is large, the winding becomes very thick.
Considering the bobbin structure and the efficiency of work, it is
more convenient to use numerous windings with the diameter
not exceeding 1.0. The higher the frequency used, the greater
the loss by the skin effect of the windings. Therefore, applying
many of the thinner windings instead of using the single thick
winding is recommended.
Core Constant
ͮR/A
Ae
cm-1
cm2
cm
cm3
cm2
cm2
g/set
nH
5.19
1.48
7.68
11.4
1.36
1.63
61.0
4750
Effective Cross-section Area
Effective Magnetic Circuit Length
Effective Volume
Re
Ve
Cross-section Area of Middle Leg
Core Frame Area
Acp
Acw
Weight
AL
27.0
7.5
Figure 3 FEI40 (BH2) Core Constant
100
50
0
1
2
3
4
5
6
Core loss PB (Watt)
Figure 4 FEI40 core loss - temperature characteristics
2)Choke coils
Because the switching regulator's secondary side choking
circuit is superimposed with direct current, a choke coil with
good direct current superimposition characteristics must be
selected to prevent saturation of the core. Therefore, for
designing choke coils the data on the relationship between the
gap and AL value is required.
For example, if the gap of the FEI40 (BH2) is 0.2 mm, then from
Figure 5 showing the relationship of the FEI40's air gap AL, the
AL value is 800nH. In this case, from the direct current
superimposition characteristics it is understood that the range in
Transformer VOL.07
ꢃ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
which the direct current magnetic field's magnetic permeability
does not decrease is 40AT. For making a choke coil, the
following formula must apply between the actual number of
windings N1 and the maximum direct current superimposition
current Io:
NI > N1lo..................................................................ቩ
Thus, in this case the number of windings and current capacity
are selected according to 40AT > N1Io.
On the other hand inductance is represented by the following
formula:
L = AL • N2 • 10–9 [H] ............................................ቪ
L • 109
AL
N =
(Turn) ........................................ቫ
When choosing the choke with the switching regulator, consid-
ering from the previous example :
i
2
D
1
EL
iout
E
0
e
2
eL = e2 – ed – Eo
di
dt
= L
eLdt
di
eL • Ton
=
∴L =
iout
Here, on account of the ripple and dummy load of iout, general
guidelines for the inductance of the output choke are derived
using the following formula:
5Eo • Ton
iout (max)
L =
[H]
When a 0.1 mm gap is placed in the core's middle leg, the total
gap is 0.1 mm, but when a 0.1 mm gap material is inserted
overall, the total gap amount becomes 0.2 mm.
1000
100
0.1
1.0
Air gap (mm)
Figure 5 Air gap-AL characteristics (FEI40, BH2)
Transformer VOL.07
ꢄ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
10000
GAP 0
23 fC
100 fC
1000
100
10
GAP 0.2
GAP 0.5
GAP 1.0
GAP 2.0
0.1
1
10
100
1000
NI (AT)
Figure 6 Direct current superimposition characteristics (FEI40, BH2)
(2)Flyback Method
i1
i2
D1
T
e1
n1
n2
e2
E0
Figure 7 Circuit diagram of flyback method
The above Figure 7 is the circuit diagram of the flyback method.
It is almost the same as the previous Figure 2 except for the
polarity of the transformer. As the diode D1 is located in the
backward direction on the secondary output circuit, nothing is
output when the switching transistor Tr1 is turned ON. At that
time, the following amount of energy is charged in the
transformer T.
2
E = 1/2 Li1 ............................................................ቭ
L: Primary inductance (H)
The above energy is emitted to the load R by way of the sec-
ondary diode D1 when Tr1 is turned OFF.
Determine the primary average current.
Eo • lo
........................................................ቮ
i1 =
Eo
e1 •
ꢀ
: Output voltage
lo
: Output current
ꢀ
: Energy conversion rate
Transformer VOL.07
ꢅ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
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●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Determine the primary peak current i1 max. by the following
formula:
2 • i1 • T
Ton
i1 max. =
......................................................ቯ
T: Driving cycle of switching (sec)
The inductance "Lp" necessary for the primary windings "n1" is
determined by the following formula:
1
e min. • Ton max.
Lp min. =
[H]..................................ተ
i1 max.
The number of primary windings "n1" is determined by the
following formula:
Lp min. • i1 max.
n1 =
•104 ..................................ቱ
Ae • ͬB
In this case, a certain Gap is provided by the core. Therefore,
its hysteresis curve becomes linear, unlike the nonlinear one for
Gap = 0, and the value ͬB can be kept somewhat larger than
the case using the forward method.
The number of secondary windings "n2" is determined by the
following formula:
n1 • (Eo + ed +el)
e1
Toff
Ton
n2 =
•
............................ቲ
ed : Secondary side diode loss voltage (V)
el : Line loss voltage (V)
In the RCC method, the feedback winding is determined by the
voltage "Ez" of the driving voltage, as shown in the following
formula:
Ez + EBE
e2 • n2
nd =
......................................................ታ
The designing procedure has been completed by the above
steps. However, a slight correction is actually required because
of the differences from the various conditions initially set
together with the linkage inductance of the transformer, floating
capacity and transformer connecting conditions.
In recent years, the driving frequency has risen.
e1Ton
ͬB • Ae
Np =
҂104 ..............................................ቴ
The higher it becomes, the fewer windings are required to
enable the transformer to be downsized, as shown in the above
formula. However, loss could increase by the skin effect of the
winding material, as it does for the high frequency. In addition, it
might be difficult to cope with the safety standards of each
country. Therefore, it is necessary to select the method that is
the most appropriate for the various conditions required for
each transformer when selecting the winding materials, winding
order, winding method and insulation structure.
To select the core, attention must be paid to the following items.
1. The magnetic flux density is to be high.
2. The core loss is to be low.
Transformer VOL.07
ꢆꢇ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
3. The magnetic permeability is not to decrease within the
driving frequency range.
4 The Curie temperature is to be high.
5 The saturation magnetic flux density is not to be abruptly
changed by the temperature.
Table 1 shows the material characteristics of TOKIN's ferrite
cores.
Table 1 Ferrite Core Material Characteristics
Material Characteristics
Unit
BH1
BH2
Applied Frequency Range
MHz
<0.3
2300 20ꢀ
520
410
100
55
13
5
220
<0.3
2300 20ꢀ
510
400
100
Initial Permeability
Effective Saturation Magnetic
Flux Density (Approx.1200 A/m)
Ȑi
23˚C
100˚C
23˚C
100˚C
23˚C
Bms
mT
Effective Retentivity
Brms
55
14.3
Effective Coercivity
Curie Temperature
Hcms
Tc
A/m
˚C
100˚C
220
600
450
410
23˚C
60˚C
100˚C
23˚C
60˚C
100˚C
60˚C
550
350
250
100kHz 200mT
Pcv
Pcv
Core Loss
Density
kW/m3
kg/m3
500kHz 200mT
1MHz 50mT
Pcv
d
100˚C
4.8 ҂ 103
4.8 ҂ 103
Transformer VOL.07
ꢆꢆ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
[RoHS Compliant]
Transformers/Choke Coils Series
Output Wattage
Series
Shape of Core
Forward Method
50kHz(W) 100kHz(W)
Flyback Method
50kHz(W) 100kHz(W)
FEI・FEE
FEI12.5
3
8
4
10
2
5
3
6
FEI16
10 15
12 18
15 20
13 19
15 23
19 26
3
8
4
10
FEE16
FEI19
5
10
6
13
FEE19
FEI22
8
8
15
15
10 19
FEE22
FEI22S
FEI25
15 20
20 30
30 50
19 26
26 39
40 65
10 19
13 26
25 40
10 20
20 30
FEI28
FEI30
50 70
65 90
30 40
35 50
40 50
45 65
FEE30
FEI33
80 130
100 165
FEE33
FEI35S
FEI40
80 130
100 150
90 140
20 30
100 165
130 195
115 180
26 39
35 50
45 75
40 70
10 20
20 30
30 40
40 50
50 65
45 65
60 95
50 90
13 26
26 39
40 50
50 65
65 80
FEE40
FEER25.5
FEER28
FEER28L
FEER35
FEER35L
FEER
35 45
45 55
40 60
50 80
70 100
100 150
90 130
130 195
Note:The output wattage is specified for conditions using TOKIN's BH2 material and the temperature rise of the transformer bein T < 45˚C within range of the operating flux density.
Transformer VOL.07
ꢆꢈ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
List of Core Set Shapes
Ordering Code System
EB 40 - P 12 12 - F
Series
Series
ቢ
EB……BobbinsforFEI andFEECores
ቢ
ባ
ቤ
ብ
ቦ
ቧ
ERB…BobbinsforFEERCores
SizeofCore
ባ
Type of Pin
ቤ
TypeofPlacing 11: Horizontal Type, 12: Vertical Type
ብ
Number of Pins
ቦ
Material F: Phenor Resin
ቧ
Description of Abbreviations
Ae : Section Area of Core (cm2)
W
: Weight of Core (g/Set)
The dimension without the specification of tolerance in-dicates the typical value.
Outline drawing
[mm] as the unit for dimensions not specified otherwise.
The top view is shown for the pin pattern dimensions not specified otherwise.
Transformer VOL.07
ꢆ3
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●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
0.15
Bobbin
article name
FEI12.5
W
1.9
EB12.5-P1210-F
14 max.
Recommended pin pattern dimensions
10 - ø1.1
2.5
5.0
7.5
10.0
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI16
FEE16
0.19
0.19
3.2
3.3
EB16-P1206-F, EB16-P1210-FA
17.5 max.
EB16-P1206-F
●
Recommended pin pattern dimensions
6 - ø1.1
3.25
6.5
Tolerance ȗ 0.1
EB16-P1210-FA
●
17.5 max.
Recommended pin pattern dimensions
10 - ø1.3
3.25
6.5
9.75
Tolerance ȗ 0.1
13.0
Core
Bobbin
article name
Ae
W
FEI19
FEE19
0.23
0.23
4.4
4.8
EB19-P1208-F
Recommended pin pattern dimensions
21.5 max.
8 - ø1.1
5
10
15
Tolerance ȗ 0.1
Transformer VOL.07
ꢆꢀ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
Bobbin
article name
W
FEI22
FEE22
0.41
0.42
8.8
8.8
EB22-P1210-F
24 max.
Recommended pin pattern dimensions
10 - ø1.3
4.0
8.0
12.0
16.0
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI22S
0.36
7.7
EB22S-P1208-F
23.5 max.
Recommended pin pattern dimensions
8 - ø1.3
5
10
15
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI25
0.41
11.0
EB25-P1208-F
Recommended pin pattern dimensions
23.5 max.
8 - ø1.3
5
10
Tolerance ȗ 0.1
15
Core
Bobbin
article name
Ae
W
FEI28
FEE28S
0.85
0.87
24.0
21.5
EB28-P1210-F
Recommended pin pattern dimensions
29.5 max.
10 - ø1.3
5
10
15
20
Tolerance ȗ 0.1
Transformer VOL.07
ꢆꢁ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
Bobbin
article name
W
FEI28
FEE28S
0.85
0.87
24.0
21.5
EB28-P1212-F
Recommended pin pattern dimensions
30 max.
12 - ø1.3
5
10
15
20
25
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI30
FEE30
1.11
1.11
35.0
33.0
EB30-P1212-F
Recommended pin pattern dimensions
31.5 max.
12 - ø1.3
5.0
10.0
15.0
20.0
25.0
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI33
1.18
41.5
EB33-P1212-FS
Recommended pin pattern dimensions
34.5 max.
12 - ø1.3
5.0
10.0
15.0
20.0
25.0
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI33
1.18
41.5
EB33-P1216-F
40 max.
Recommended pin pattern dimensions
16 - ø1.3
5.0 5.0 5.0 5.0 5.0 5.0 5.0
Tolerance ȗ 0.1
Transformer VOL.07
ꢆꢂ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
1.18
Bobbin
article name
FEI33
W
41.5
EB33-P1218-F
45 max.
Recommended pin pattern dimensions
18 - ø1.3
5.05.05.05.05.05.05.05.0
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI35S
1.2
41.5
EB35S-P1212-F
36.5 max.
Recommended pin pattern dimensions
12 - ø1.3
5
10
15
20
Tolerance ȗ 0.1
27.5
Core
Bobbin
article name
Ae
W
FEI40
FEE40
1.48
1.28
61.0
51.1
EB40-P1212-F
Recommended pin pattern dimensions
42 max.
12 - ø1.3
5
10
15
20
25
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEI40
FEE40
1.48
1.28
61.0
51.1
EB40-P1114-FA
Recommended pin pattern dimensions
42 max.
14 - ø1.3
5.08 5.08 5.08 5.08 5.08 5.08
Tolerance ȗ 0.1
Transformer VOL.07
ꢆꢃ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
0.43
Bobbin
article name
FEER25.5
W
10.8
ERB25.5-P1208-F
27 max.
Recommended pin pattern dimensions
8 - ø1.3
5
10
15
Tolerance ȗ 0.1
Core
Bobbin
ERB28-P1210-F, ERB28-P1212-F
article name
Ae
W
FEER28
0.85
28.5
ERB28-P1210-F
●
30 max.
Recommended pin pattern dimensions
10 - ø1.3
5
10
15
20
Tolerance ȗ 0.1
ERB28-P1212-F
●
Recommended pin pattern dimensions
32.0 max.
12 - ø1.3
5.0
10.0
15.0
20.0
25.0
Tolerance ȗ 0.1
Transformer VOL.07
ꢆꢄ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
0.85
Bobbin
article name
W
FEER28L
33.2
ERB28L-P1210-F, ERB28L-P1212-F
ERB28L-P1210-F
●
30 max.
Recommended pin pattern dimensions
10 - ø1.3
5
10
15
20
Tolerance ȗ 0.1
ERB28L-P1212-F
●
Recommended pin pattern dimensions
32 max.
12 - ø1.3
5
10
15
Tolerance ȗ 0.1
20
32 max.
25
Core
Bobbin
article name
Ae
W
FEER35
1.10
45.0
ERB35-P1212-F
Recommended pin pattern dimensions
37 max.
12 - ø1.5
5
10
15
20
25
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEER35L
1.08
50.7
ERB35L-P1212-F
Recommended pin pattern dimensions
37 max.
12 - ø1.5
5
10
15
20
25
Tolerance ȗ 0.1
Transformer VOL.07
ꢆꢅ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Notes for Handling
• Confirm the required operating conditions for each product
before using it.
(Applying excess load may damage the transformer.)
• Avoid subjecting the terminals of the transformer to
excessive stress.
(This can damage the wiring.)
• Avoid handling the product while holding the transformer
part after it is mounted on the board.
(This can loosen the core or damage the wiring.)
• Never use any product that has been dropped .
(A cracked core can cause unsatisfactory characteristics .)
Transformer VOL.07
ꢈ ꢇ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Custom transformer series (Through-hole type)
Output Wattage
Core Size
Bobbin
4W
FEY12.7 / 12 / 4
EYB12-P1107-F7
5W
6W
7W
15W
18W
40W
FEY16 / 14.5 / 5
FEE12.6
FEY16D / 14.2 / 5.5
FEI22S
FEE22
FEEH28
EYB16-P1107-F1
EEB12.6-P1109-F
EYB16D-P1110-F
EB22S-P1211-F
EEHB22-P1110-F
EHB28-P1214-F2
EYB28-P1112-F
50W
FEY28D
Circuit condition: Flyback at= 100 kHz
*Contact us indivisually regarding safety standard complied models.
Transformer VOL.07
ꢈꢆ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
0.107
Bobbin
article name
FEY12.7/12/4
W
1.6
EYB12-P1107-F7
Recommended pin pattern dimensions
0.5
9.0
13.5 max.
7 - ø1.3
2.5
5.0
7.5
10.0
Tolerance ȗ 0.1
Core
Bobbin
EYB16-P1107-F1
article name
FEY16/14.5/5
Ae
0.1593
W
3.0
Recommended pin pattern dimensions
17 max.
7 - ø1.1
5.0
7.5
10.0
12.5
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEE12.6
0.124
2.0
EEB12.6-P1109-F
Recommended pin pattern dimensions
13.2
8.1
17.5 max.
5.1
9 - ø1.2
1.2
2.7
5.4
8.1
10.8
14.5 max.
Tolerance ȗ 0.1
Core
Bobbin
EYB16D-P1110-F
article name
FEY16D/14.2/5.5
Ae
0.236
W
4.1
Recommended pin pattern dimensions
14.5
8.75
19.5 max.
5.75
1.0
10 - ø1.2
2.5
5.0
7.5
10.0
12.5
Tolerance ȗ 0.1
Transformer VOL.07
ꢈꢈ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Core
Ae
0.36
Bobbin
article name
FEI22S
W
7.7
EB22S-P1211-F
23 max.
Recommended pin pattern dimensions
11 - ø1.3
3.5
7.0
10.5
14.0
Tolerance ȗ 0.1
17.5
Core
Bobbin
article name
Ae
W
FEE22
0.502
11.7
EEHB22-P1110-F
Recommended pin pattern dimensions
17.0
10.5
24.0 max.
6.5
10 - ø1.3
0.375
3.25
6.5
9.75
13.0
16.25
Tolerance ȗ 0.1
Core
Bobbin
article name
Ae
W
FEEH28
0.844
23.8
EHB28-P1214-F2
Recommended pin pattern dimensions
24.75
21.25
17.75
14.25
36.0 max.
10.75
7.25
3.75
0.25
14 - ø1.3
5
10
15
20
Tolerance ȗ 0.1
25
Core
Bobbin
article name
Ae
W
FEY28D
0.75
32.0
EYB28-P1112-F
Recommended pin pattern dimensions
30 max.
12 - ø1.3
5.0
10.0
15.0
20.0
25.0
Tolerance ȗ 0.1
Transformer VOL.07
ꢈ3
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Notes for Handling
• Confirm the required operating conditions for each product
before using it.
(Applying excess load may damage the transformer.)
• Avoid subjecting the terminals of the transformer to
excessive stress.
(This can damage the wiring.)
• Avoid handling the product while holding the transformer
part after it is mounted on the board.
(This can loosen the core or damage the wiring.)
• Never use any product that has been dropped .
(A cracked core can cause unsatisfactory characteristics.)
Transformer VOL.07
ꢈꢀ
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
Precautions
● The names of the products and the specifications in this
catalog are subject to change without notice for the sake
of improvement. The manufacturer also reserves the right
to discontinue any of these products. At the time of
delivery, please ask for specifications sheets to check the
contents in order to use the products properly and safely.
● Descriptions in this catalog regarding product
characteristics and quality are based solely on discrete
components. When using these components, be sure to
check the specifications with the component in question
mounted on the products.
,
● The manufacturer s warranty will not cover any
disadvantage or damage caused by improper use of the
products that deviates from the characteristics,
specifications, or conditions for use described in this
catalog.
● The products in this catalog are intended for use in
ordinary electronic products. If any of these products are
to be used in special applications requiring extremely high
reliability, such as in aviation equipment and nuclear
power controllers where product defects might pose a
safety risk, please consult your TOKIN sales
representatives.
● Though the manufacturer has taken all possible
precautions to ensure the quality and reliability of its
products, improper use of products may result in bodily
injury, fire, or similar accident. If you have any questions
regarding the use of the products in question, please
consult your TOKIN sales representatives.
● Please be advised that the manufacturer accepts no
responsibility for any infraction by users of the
,
manufacturer s products on third party patents or
industrial copyrights. The manufacturer is responsible only
when such infractions are attributable to the structural
design of the product and its manufacturing process.
● Export Control
For customers outside Japan
TOKIN products should not be used or sold for use in the
development, production, stockpiling or utilization of any
conventional weapons or mass-destructive
weapons(nuclear weapons, chemical or biological
weapons, or missiles), or any other weapons.
For customers in Japan
For products which are controlled items subject to
the “Foreign Exchange and Foreign Trade Law” of
Japan, the export license specified by the law is required
for export.
● This catalog is current as of April 2017.
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
9616TRAVOL07E1704E1
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