LQW18AN22NG0ZD [MURATA]
General Purpose Inductor, 0.022uH, 2%, 1 Element, SMD, CHIP, 0603;型号: | LQW18AN22NG0ZD |
厂家: | muRata |
描述: | General Purpose Inductor, 0.022uH, 2%, 1 Element, SMD, CHIP, 0603 测试 射频感应器 电感器 |
文件: | 总11页 (文件大小:298K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SpecNo.JELF243A-9116B-01
P.1/11
Reference Only
CHIP COIL (CHIP INDUCTORS) LQW18AN□□□□0ZD
Murata Standard Reference Specification 【AEC-Q200】
1. Scope
This reference specification applies to LQW18AN_0ZD series, Chip coil (Chip Inductors) for automotive Electronics
based on AEC-Q200 except for Power train and Safety.
2. Part Numbering
(ex) LQ
Product ID Structure Dimension Applications Category Inductance Tolerance Features Application
W
18
(L×W)
A
N
2N2
D
0
Z
D
Packaging
and
Z:Automotive D:Taping
Characteristics
3. Rating
・Operating Temperature Range
–55°C to +125°C
・Storage Temperature Range.
–55°C to +125°C
DC
Self Resonant
Inductance
Q
(∗1)
(min.)
Rated
Current
(mA)
ESD
Rank
6: 25kV
Resistance Frequency
(∗1)
(Ω max.)
Customer
MURATA
Part Number
Part Number
(∗1)
(MHz min.)
(nH)
2.2
3.6
Tolerance
LQW18AN2N2D0ZD
LQW18AN3N6C0ZD
LQW18AN3N6D0ZD
LQW18AN3N9C0ZD
LQW18AN3N9D0ZD
LQW18AN4N3C0ZD
LQW18AN4N3D0ZD
LQW18AN4N7D0ZD
LQW18AN5N6C0ZD
LQW18AN5N6D0ZD
LQW18AN6N2C0ZD
LQW18AN6N2D0ZD
LQW18AN6N8C0ZD
LQW18AN6N8D0ZD
LQW18AN7N5C0ZD
LQW18AN7N5D0ZD
LQW18AN8N2C0ZD
LQW18AN8N2D0ZD
LQW18AN8N7C0ZD
LQW18AN8N7D0ZD
LQW18AN9N1C0ZD
LQW18AN9N1D0ZD
LQW18AN9N5D0ZD
LQW18AN10NG0ZD
LQW18AN10NJ0ZD
LQW18AN11NG0ZD
LQW18AN11NJ0ZD
LQW18AN12NG0ZD
LQW18AN12NJ0ZD
LQW18AN13NG0ZD
LQW18AN13NJ0ZD
LQW18AN15NG0ZD
LQW18AN15NJ0ZD
LQW18AN16NG0ZD
LQW18AN16NJ0ZD
D:±0.5nH
16
25
0.042
700
C:±0.2nH
D:±0.5nH
3.9
0.059
850
4.3
4.7
5.6
D:±0.5nH
6.2
6.8
7.5
8.2
8.7
0.082
750
C:±0.2nH
D:±0.5nH
6000
35
6
9.1
9.5
10
0.11
650
D:±0.5nH
11
12
13
15
16
G:±2%
J:±5%
0.13
0.16
600
550
40
5500
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.2/11
ESD
Rank
6: 25kV
Reference Only
DC
Resistance
(∗1)
Self Resonant
Frequency
(∗1)
Inductance
Q
Rated
Current
(mA)
Customer
Part Number
MURATA
Part Number
(∗1)
(min.)
(nH)
Tolerance
(Ω max.)
(MHz min.)
LQW18AN18NG0ZD
LQW18AN18NJ0ZD
LQW18AN20NG0ZD
LQW18AN20NJ0ZD
LQW18AN22NG0ZD
LQW18AN22NJ0ZD
LQW18AN24NG0ZD
LQW18AN24NJ0ZD
LQW18AN27NG0ZD
LQW18AN27NJ0ZD
LQW18AN30NG0ZD
LQW18AN30NJ0ZD
LQW18AN33NG0ZD
LQW18AN33NJ0ZD
LQW18AN36NG0ZD
LQW18AN36NJ0ZD
LQW18AN39NG0ZD
LQW18AN39NJ0ZD
LQW18AN43NG0ZD
LQW18AN43NJ0ZD
LQW18AN47NG0ZD
LQW18AN47NJ0ZD
LQW18AN51NG0ZD
LQW18AN51NJ0ZD
LQW18AN56NG0ZD
LQW18AN56NJ0ZD
LQW18AN62NG0ZD
LQW18AN62NJ0ZD
LQW18AN68NG0ZD
LQW18AN68NJ0ZD
LQW18AN72NG0ZD
LQW18AN72NJ0ZD
LQW18AN75NG0ZD
LQW18AN75NJ0ZD
LQW18AN82NG0ZD
LQW18AN82NJ0ZD
LQW18AN91NG0ZD
LQW18AN91NJ0ZD
LQW18ANR10G0ZD
LQW18ANR10J0ZD
LQW18ANR11G0ZD
LQW18ANR11J0ZD
LQW18ANR12G0ZD
LQW18ANR12J0ZD
LQW18ANR13G0ZD
LQW18ANR13J0ZD
LQW18ANR15G0ZD
LQW18ANR15J0ZD
LQW18ANR16G0ZD
LQW18ANR16J0ZD
18
20
5500
4900
4600
3800
3700
3300
3200
2900
2800
2700
2600
2500
2400
2300
2200
2100
2050
2000
1900
1800
1700
1600
1450
1400
1350
0.16
0.17
0.21
550
22
500
500
440
24
27
40
30
0.23
0.26
0.29
420
400
380
33
36
39
43
47
51
0.33
0.35
0.51
0.38
370
360
280
340
G:±2%
J:±5%
56
38
34
32
6
62
68
72
0.56
270
75
82
0.60
0.64
0.68
1.2
250
230
220
200
180
170
160
150
91
100
110
120
130
150
160
1.3
1.4
1.5
2.1
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.3/11
Reference Only
Self
DC
Resistance
(∗1)
Inductance
Q
(∗1)
(min.)
Resonant
Frequency
(∗1)
Rated
Current
(mA)
ESD
Rank
6: 25kV
Customer
Part Number
MURATA
Part Number
(nH)
Tolerance
(Ω max.)
(MHz min.)
LQW18ANR18G0ZD
LQW18ANR18J0ZD
LQW18ANR20G0ZD
LQW18ANR20J0ZD
LQW18ANR22G0ZD
LQW18ANR22J0ZD
LQW18ANR27G0ZD
LQW18ANR27J0ZD
LQW18ANR33G0ZD
LQW18ANR33J0ZD
LQW18ANR39G0ZD
LQW18ANR39J0ZD
LQW18ANR47G0ZD
LQW18ANR47J0ZD
180
200
220
270
330
390
470
2.2
2.4
2.5
3.4
5.5
6.2
7.0
1300
1250
1200
960
140
120
25
G:±2%
J:±5%
110
85
6
30
800
700
80
75
(∗1) Standard Testing Conditions
《Unless otherwise specified》
Temperature : Ordinary Temperature / 15°C to 35°C
Humidity : Ordinary Humidity / 25%(RH) to 85%(RH)
《In case of doubt》
Temperature
Humidity
: 20°C±2°C
: 60%(RH) to 70%(RH)
Atmospheric Pressure : 86kPa to 106 kPa
4. Appearance and Dimensions
1.6±0.2
■Unit Mass (Typical value)
0.003g
(in mm)
0.3±0.1
0.3±0.1
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.4/11
Reference Only
5. Electrical Performance
No.
Item
Specification
Test Method
5.1 Inductance
Inductance shall meet item 3.
Measuring Equipment:KEYSIGHT E4991A or equivalent
Measuring Frequency:<Inductance> 100MHz
<Q> 250MHz / 2.2nH~ 39nH
200MHz / 43nH~ 68nH
150MHz / 72nH~160nH
100MHz / 180nH~470nH
Measuring Condition:Test signal level / about 0dBm
Electrical length / 0.94cm
Measuring Fixture:KEYSIGHT 16193A
Position coil under test as shown in below and contact coil
with each terminal by adding weight.
5.2
Q
Q shall meet item 3.
1mm
6.97mm
Measuring Method:See the endnote.
<Electrical Performance:Measuring
Method of Inductance / Q>
5.3 DC Resistance
DC Resistance shall meet item 3.
S.R.F shall meet item 3.
Measuring Equipment:Digital multi meter
5.4 Self Resonant
Frequency (S.R.F)
Measuring Equipment:KEYSIGHT N5230A or equivalent
5.5 Rated Current
Self temperature rise shall be
limited to 20°C max.
The rated current is applied.
Inductance Change:within ±10%
6. Q200 Requirement
6.1.Performance (based on Table 5 for Magnetics(Inductors / Transformer)
AEC-Q200 Rev.D issued June 1. 2010
AEC-Q200
Murata Specification / Deviation
Meet Table A after testing.
No
Stress
Test Method
3
High
1000hours at 125 deg C
Set for 24hours at room
temperature, then measured.
Temperature
Exposure
Table A
Appearance
No damage
Inductance change
(at 100MHz)
Within ±5%
4
Temperature
Cycling
1000cycles
Meet Table A after testing.
-40 deg C to +125 deg C
Set for 24hours at room
temperature,then
measured.
7
8
Biased Humidity
Operational Life
1000hours at 85 deg C, 85%RH Meet Table A after testing.
unpowered.
Apply Rated Current 125 deg C Meet Table A after testing.
1000hours
Set for 24hours at room
temperature, then measured
9
External Visual
Visual inspection
No abnormalities
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
AEC-Q200
P.5/11
Reference Only
Murata Specification / Deviation
No
10 Physical Dimension Meet ITEM 4
(Style and Dimensions)
Stress
Test Method
No defects
12 Resistance
to Solvents
Per
MIL-STD-202
Method 215
Not Applicable
13 Mechanical Shock Per MIL-STD-202
Method 213
Meet Table A after testing.
Meet Table A after testing.
Condition C:100g’s(0.98N), 6ms
Half sine, 12.3ft / s
14 Vibration
5g's(0.049N) for 20 minutes,
12cycles each of 3
orientations
Test from 10-2000Hz.
15 Resistance
No-heating
Pre-heating:150C + / -10 deg C, 60s to 90s
to Soldering Heat
Solder temperature
260C+ / -5 deg C
Immersion time 10s
Meet Table A after testing.
17 ESD
Per AEC-Q200-002
ESD Rank:Refer to Item 3. Rating.
Meet Table A after testing.
18 Solderbility
Per J-STD-002
Method b:Not Applicable
95% of the terminations is to be soldered.
(Except exposed wire)
19 Electrical
Measured : Inductance
Per UL-94
No defects
Characterization
20 Flammability
21 Board Flex
Not Applicable
Epoxy-PCB(1.6mm)
Deflection 2mm(min)
Holding time 60s
Meet Table B after testing.
Table B
Appearance
No damage
DC resistance
change
Within ±10%
22 Terminal Strength
Per AEC-Q200-006
A force of 17.7N
for 60s
Murata Deviation Request:10N / 5s
No defect
7. Specification of Packaging
7.1 Appearance and Dimensions of paper tape (8mm-wide)
2.0±0.05
1.5±00.1
4.0±0.1
1.75±0.1
φ
4.0±0.1
1.0±0.05
(in mm)
Direction of feed
1.1 max.
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.6/11
Reference Only
7.2 Specification of Taping
(1) Packing quantity (standard quantity)
4,000 pcs. / reel
(2) Packing Method
Products shall be packed in the cavity of the base tape and sealed by top tape and bottom tape.
(3) Sprocket hole
The sprocket holes are to the right as the tape is pulled toward the user.
(4) Spliced point
Base tape and Top tape has no spliced point.
(5) Missing components number
Missing components number within 0.1 % of the number per reel or 1 pc., whichever is greater,
and are not continuous. The Specified quantity per reel is kept.
7.3 Pull Strength
Top tape
5N min.
Bottom tape
7.4 Peeling off force of cover tape
Top tape
165 to 180 degree
Bottom tape
Speed of Peeling off
300mm/min
F
0.1N to 0.6N
(minimum value is typical)
Peeling off force
Base tape
7.5 Dimensions of Leader-tape,Trailer and Reel
There shall be leader-tape ( cover tape and empty tape) and trailer-tape (empty tape) as follows.
Trailer
Leader
160 min.
2.0±0.5
Label
190 min.
Empty tape Cover tape
210 min.
φ
13.0±0.2
φ
60+1
-
0
Direction of feed
φ
21.0±0.8
+1
-0
9.0
(in mm)
13.0±1.4
+0
φ
180
-3
7.6 Marking for reel
Customer part number, MURATA part number, Inspection number(∗1), RoHS marking(∗2), Quantity etc ・・・
∗1) <Expression of Inspection No.>
□□OOOO ×××
(1) (2) (3)
(1) Factory Code
(2) Date
First digit
: Year / Last digit of year
Second digit
: Month / Jan. to Sep. → 1 to 7, Oct. to Dec. → O, N, D
Third, Fourth digit : Day
(3) Serial No.
∗2) « Expression of RoHS marking »
ROHS – Y (△)
(1) (2)
(1) RoHS regulation conformity
(2) MURATA classification number
7.7 Marking for Outside package (corrugated paper box)
Customer name, Purchasing order number, Customer part number, MURATA part number, RoHS Marking (∗2) ,
Quantity, etc ・・・
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.7/11
Reference Only
7.8 Specification of Outer Case
Outer Case Dimensions (mm)
Standard Reel Quantity
in Outer Case (Reel)
W
D
H
Label
186
186
93
5
H
∗ Above Outer Case size is typical. It depends on a quantity
of an order.
D
W
8.
Caution
8.1 Caution(Rating)
Do not exceed maximum rated current of the product. Thermal stress may be transmitted to the product and short /
open circuit of the product or falling off the product may be occurred.
8.2 Fail-safe
Be sure to provide an appropriate fail-safe function on your product to prevent a second damage that may be caused
by the abnormal function or the failure of our product.
8.3 Limitation of Applications
Please contact us before using our products for the applications listed below which require especially high reliability
for the prevention of defects which might directly cause damage to the third party's life, body or property.
(1) Aircraft equipment
(6) Transportation equipment (trains, ships, etc.)
(7) Traffic signal equipment
(8) Disaster prevention / crime prevention equipment
(2) Aerospace equipment
(3) Undersea equipment
(4) Power plant control equipment
(5) Medical equipment
(9) Data-processing equipment
(10) Applications of similar complexity and /or reliability
requirements to the applications listed in the above
9. Notice
Products can only be soldered with reflow.
This product is designed for solder mounting.
Please consult us in advance for applying other mounting method such as conductive adhesive.
9.1 Land pattern designing
Recommended land patterns for reflow soldering are as follows:
These have been designed for Electric characteristics and solderability.
Please follow the recommended patterns. Otherwise, their performance which includes electrical performance or
solderability may be affected, or result to "position shift" in soldering process.
Chip Coil
Land
c
Solder resist
A
B
C
0.6 to 0.8
1.9 to 2.0
0.7 to 1.0
a
(in mm)
b
9.2 Flux, Solder
・Use rosin-based flux.
Includes middle activator equivalent to 0.06(wt)% to 0.1(wt)% Chlorine.
Don’t use highly acidic flux with halide content exceeding 0.2(wt)% (chlorine conversion value).
Don’t use water-soluble flux.
・Use Sn-3.0Ag-0.5Cu solder.
・Standard thickness of solder paste : 100μm to 150μm.
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.8/11
Reference Only
9.3 Reflow soldering conditions
・Pre-heating should be in such a way that the temperature difference between solder and product surface is limited to
150°C max. Cooling into solvent after soldering also should be in such a way that the temperature difference is limited
to 100°C max.
Insufficient pre-heating may cause cracks on the product, resulting in the deterioration of products quality.
・Standard soldering profile and the limit soldering profile is as follows.
The excessive limit soldering conditions may cause leaching of the electrode and / or resulting in the deterioration of
product quality.
・Reflow soldering profile
Temp.
(℃)
260℃
230℃
Limit Profile
245℃±3℃
220℃
180
150
Standard Profile
30s~60s
60s max.
90s±30s
Time.(s)
Standard Profile
Limit Profile
Pre-heating
150°C~180°C 、90s±30s
Heating
above 220°C、30s~60s
245°C±3°C
above 230°C、60s max.
260°C,10s
Peak temperature
Cycle of reflow
2 times
2 times
9.4 Reworking with soldering iron
The following conditions must be strictly followed when using a soldering iron.
Pre-heating
150°C,1 min
350°C max.
80W max.
φ3mm max.
3(+1,-0)s
Tip temperature
Soldering iron output
Tip diameter
Soldering time
Time
2 times
Note:Do not directly touch the products with the tip of the soldering iron in order to prevent the crack on the products
due to the thermal shock.
9.5 Solder Volume
・Solder shall be used not to be exceed the upper limits as shown below.
・Accordingly increasing the solder volume, the mechanical stress to Chip is also increased.
Exceeding solder volume may cause the failure of mechanical or electrical performance.
Upper Limit
Recommendable(t)
1/3T≦t≦T
T
T:thickness of product
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.9/11
Reference Only
9.6 Product’s location
The following shall be considered when designing and laying out P.C.B.'s.
(1) P.C.B. shall be designed so that products are not subject to the mechanical stress due to warping the board.
[Products direction]
a
Products shall be located in the sideways
direction (Length:a<b) to the mechanical
b
stress.
Poor example
〈
〉
Good example
〈
〉
(2) Components location on P.C.B. separation.
It is effective to implement the following measures, to reduce stress in separating the board.
It is best to implement all of the following three measures; however, implement as many measures
as possible to reduce stress.
Contents of Measures
Stress Level
(1) Turn the mounting direction of the component parallel to
the board separation surface.
A
A
A
>
>
>
D ∗1
B
(2) Add slits in the board separation part.
(3) Keep the mounting position of the component away from
the board separation surface.
C
C
B
Seam
∗1 A > D is valid when stress is added vertically to
the perforation as with Hand Separation.
If a Cutting Disc is used, stress will be diagonal to
the PCB, therefore A > D is invalid.
D
A
a
b
Slit
<
Length:a b
(3) Mounting Components Near Screw Holes
When a component is mounted near a screw hole,
it may be affected by the board deflection that occurs
during the tightening of the screw. Mount the component
in a position as far away from the screw holes as possible.
Screw Hole
Recommended
9.7 Cleaning Conditions
Products shall be cleaned on the following conditions.
(1) Cleaning temperature shall be limited to 60°C max. (40°C max for IPA)
(2) Ultrasonic cleaning shall comply with the following conditions with avoiding the resonance phenomenon at
the mounted products and P.C.B.
Power:20 W / l max.
Frequency:28kHz to 40kHz
Time:5 min max.
(3) Cleaner
1. Alcohol type cleaner
Isopropyl alcohol (IPA)
2. Aqueous agent
PINE ALPHA ST-100S
(4) There shall be no residual flux and residual cleaner after cleaning.
In the case of using aqueous agent, products shall be dried completely after rinse with de-ionized water in
order to remove the cleaner.
(5) Other cleaning
Please contact us.
9.8 Resin coating
The inductance value may change due to high cure-stress of resin to be used for coating/molding products.
An open circuit issue may occur by mechanical stress caused by the resin, amount/cured shape of resin, or operating
condition etc. Some resin contains some impurities or chloride possible to generate chlorine by hydrolysis under some
operating condition may cause corrosion of wire of coil, leading to open circuit.
So, please pay your careful attention when you select resin in case of coating/molding the products with the resin.
Prior to use the coating resin, please make sure no reliability issue is observed by evaluating products mounted on
your board.
9.9 Caution for use
・Sharp material such as a pair of tweezers or other material such as bristles of cleaning brush , shall not be touched
to the winding portion to prevent the breaking of wire.
・Mechanical shock should not be applied to the products mounted on the board to prevent the breaking of the core.
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
9.10 Notice of product handling at mounting
P.10/11
Reference Only
In some mounting machines,when picking up components support pin pushes up the components from the bottom of base
tape. In this case, please remove the support pin. The support pin may damage the components and break wire.
In rare case ,the laser recognition can not recognize this component. Please contact us when you use laser recognition.
(There is no problem with the permeation and reflection type.)
9.11 Handling of a substrate
After mounting products on a substrate, do not apply any stress to the product caused by bending or twisting to the
substrate when cropping the substrate, inserting and removing a connector from the substrate or tightening screw to
the substrate.
Excessive mechanical stress may cause cracking in the product.
Bending
Twisting
9.12 Storage and Handing Requirements
(1) Storage period
Use the products within 12 months after delivered.
Solderability should be checked if this period is exceeded.
(2) Storage conditions
・Products should be stored in the warehouse on the following conditions.
Temperature : -10°C to 40°C
Humidity
: 15% to 85% relative humidity No rapid change on temperature and humidity
・Don't keep products in corrosive gases such as sulfur,chlorine gas or acid, or it may cause oxidization of
electrode, resulting in poor solderability.
・Products should not be stored on bulk packaging condition to prevent the chipping of the core and the breaking
of winding wire caused by the collision between the products.
・Products should be stored on the palette for the prevention of the influence from humidity, dust and so on.
・Products should be stored in the warehouse without heat shock, vibration, direct sunlight and so on.
(3) Handling Condition
Care should be taken when transporting or handling product to avoid excessive vibration or mechanical shock.
10.
Note
(1)Please make sure that your product has been evaluated in view of your specifications with our product being mounted
to your product.
(2)You are requested not to use our product deviating from the reference specifications.
(3)The contents of this reference specification are subject to change without advance notice.
Please approve our product specifications or transact the approval sheet for product specifications before ordering.
MURATA MFG.CO., LTD
SpecNo.JELF243A-9116B-01
P.11/11
Reference Only
<Electrical Performance:Measuring Method of Inductance / Q>
(1) Residual elements and stray elements of test fixture can be described by F-parameter shown in following.
2
1
I
I
A
C
B
D
A
C
B
D
V1
I1
V2
I 2
Zx
Zm
=
V
2
V1
Test Head
Test fixture
Product
(2) The impedance of chip coil Zx and measured value Zm can be described by input/output current/voltage.
V1
I 1
V2
I 2
Zm=
,
Zx=
(3) Thus,the relation between Zx and Zm is following;
Zm-β
where, α= D / A =1
Zx= α
1-ZmΓ
β= B / D =Zsm-(1-Yom Zsm)Zss
Γ= C / A =Yom
Zsm: measured impedance of short chip
Zss : residual impedance of short chip (0.771nH)
Yom: measured admittance when opening the fixture
(4) Lx and Qx shall be calculated with the following equation.
Im(Zx)
Im(Zx)
Re(Zx)
Lx: Inductance of chip coil
Qx: Q of chip coil
Lx=
,
Qx =
2πf
f : Measuring frequency
MURATA MFG.CO., LTD
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SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9136_11
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SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137
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SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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