1N4370/D [ETC]
500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators ; 500毫瓦的DO -35密封式玻璃齐纳稳压器
| 型号： | 1N4370/D |
| 厂家： | 
ETC |
| 描述： | 500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
|
| 文件： | 总12页 (文件大小：77K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1N4370A Series
500 mW DO-35 Hermetically
Sealed Glass Zener Voltage
Regulators
This is a complete series of 500 mW Zener diodes with limits and
excellent operating characteristics that reflect the superior capabilities
of silicon–oxide passivated junctions. All this in an axial–lead
hermetically sealed glass package that offers protection in all common
environmental conditions.
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Cathode
Anode
Specification Features:
• Zener Voltage Range – 2.4 V to 12 V
• ESD Rating of Class 3 (>16 KV) per Human Body Model
• DO–204AH (DO–35) Package – Smaller than Conventional
DO–204AA Package
• Double Slug Type Construction
• Metallurgical Bonded Construction
AXIAL LEAD
CASE 299
GLASS
Mechanical Characteristics:
CASE: Double slug type, hermetically sealed glass
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
230°C, 1/16″ from the case for 10 seconds
POLARITY: Cathode indicated by polarity band
MOUNTING POSITION: Any
MARKING DIAGRAM
L
1N
xx
xxA
YWW
L
= Assembly Location
1NxxxxA = Device Code
= (See Table Next Page)
= Year
= Work Week
MAXIMUM RATINGS (Note 1.)
Y
WW
Rating
Symbol
Value
Unit
Max. Steady State Power Dissipation
P
D
500
mW
@ T ≤ 75°C, Lead Length = 3/8″
Derate above 75°C
L
ORDERING INFORMATION
4.0
mW/°C
°C
Device
Package
Axial Lead
Axial Lead
Axial Lead
Axial Lead
Axial Lead
Axial Lead
Axial Lead
Axial Lead
Shipping
Operating and Storage
Temperature Range
T , T
–65 to
+200
J
stg
1NxxxxA
3000 Units/Box
5000/Tape & Reel
5000/Tape & Reel
3000/Ammo Pack
5000/Ammo Pack
5000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
1. Some part number series have lower JEDEC registered ratings.
1NxxxxARL
1NxxxxARL2 *
1NxxxxARA1
1NxxxxATA
1NxxxxATA2 *
{
1NxxxxARR1
1NxxxxARR2
}
* The “2” suffix refers to 26 mm tape spacing.
{
Polarity band up with cathode lead off first
Polarity band down with cathode lead off first
}
Devices listed in bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
Semiconductor Components Industries, LLC, 2001
1
Publication Order Number:
May, 2001 – Rev. 1
1N4370A/D
1N4370A Series
ELECTRICAL CHARACTERISTICS (T = 25°C unless
A
I
otherwise noted, V = 1.5 V Max @ I = 200 mA for all types)
F
F
I
F
Symbol
Parameter
V
Z
Reverse Zener Voltage @ I
ZT
I
ZT
Reverse Current
Z
I
Maximum Zener Impedance @ I
Maximum DC Zener Current
ZT
ZT
V
Z
V
R
V
I
ZT
ZM
V
F
R
I
I
Reverse Leakage Current @ V
Reverse Voltage
R
R
V
R
I
F
Forward Current
V
F
Forward Voltage @ I
F
Zener Voltage Regulator
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted, V = 1.5 V Max @ I = 200 mA for all types)
A
F
F
Zener Voltage (Note 3.)
I @ V = 1 V
R R
Z
ZT
(Note 4.)
V (Volts)
@ I
T
A
= 255C
(µA)
T
A
= 1505C
(µA)
@ I
I
(Note 5.)
Z
ZT
ZT
ZM
Device
(Note 2.)
Device
Marking
Min
Nom
Max
(mA)
(W)
(mA)
1N4370A
1N4371A
1N4372A
1N746A
1N747A
1N4370A
1N4371A
1N4372A
1N746A
1N747A
2.28
2.57
2.85
3.14
3.42
2.4
2.7
3.0
3.3
3.6
2.52
2.84
3.15
3.47
3.78
20
20
20
20
20
30
30
29
28
24
150
135
120
110
100
100
75
50
10
10
200
150
100
30
30
1N748A
1N749A
1N750A
1N751A
1N752A
1N748A
1N749A
1N750A
1N751A
1N752A
3.71
4.09
4.47
4.85
5.32
3.9
4.3
4.7
5.1
5.6
4.10
4.52
4.94
5.36
5.88
20
20
20
20
20
23
22
19
17
11
95
85
75
70
65
10
2
2
1
1
30
30
30
20
20
1N753A
1N754A
1N755A
1N756A
1N757A
1N753A
1N754A
1N755A
1N756A
1N757A
5.89
6.46
7.13
7.79
8.65
6.2
6.8
7.5
8.2
9.1
6.51
7.14
7.88
8.61
9.56
20
20
20
20
20
7
5
6
8
10
60
55
50
45
40
0.1
0.1
0.1
0.1
0.1
20
20
20
20
20
1N758A
1N759A
1N758A
1N759A
9.50
10
12
10.5
12.6
20
20
17
30
35
30
0.1
0.1
20
20
11.40
2. TOLERANCE AND TYPE NUMBER DESIGNATION (V )
Z
The type numbers listed have a standard tolerance on the nominal zener voltage of ±5%.
3. ZENER VOLTAGE (V ) MEASUREMENT
Z
Nominal zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (T ) at 30°C ± 1°C and 3/8″
L
lead length.
4. ZENER IMPEDANCE (Z ) DERIVATION
Z
Z
ZT
and Z are measured by dividing the ac voltage drop across the device by the ac current applied. The specified limits are for I
=
Z(ac)
ZK
0.1 I
with the ac frequency = 60 Hz.
Z(dc)
5. MAXIMUM ZENER CURRENT RATINGS (I
)
ZM
Values shown are based on the JEDEC rating of 400 mW where the actual zener voltage (V ) is known at the operating point, the maximum
Z
zener current may be increased and is limited by the derating curve.
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2
1N4370A Series
0.7
0.6
HEAT
SINKS
0.5
0.4
0.3
0.2
0.1
0
3/8"
3/8"
0
20
40
60
80
100 120 140
160
180
200
T , LEAD TEMPERATURE (°C)
L
Figure 1. Steady State Power Derating
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3
1N4370A Series
APPLICATION NOTE — ZENER VOLTAGE
500
400
300
200
100
0
Since the actual voltage available from a given zener
diode is temperature dependent, it is necessary to determine
junction temperature under any set of operating conditions
in order to calculate its value. The following procedure is
recommended:
L
L
Lead Temperature, T , should be determined from:
L
2.4-60ĂV
TL = θLAPD + TA.
θ
is the lead-to-ambient thermal resistance (°C/W) and P
D
LA
62-200ĂV
0.6
is the power dissipation. The value for θ will vary and
LA
depends on the device mounting method. θ is generally 30
LA
to 40°C/W for the various clips and tie points in common use
and for printed circuit board wiring.
0
0.2
0.4
0.8
1
The temperature of the lead can also be measured using a
thermocouple placed on the lead as close as possible to the
tie point. The thermal mass connected to the tie point is
normally large enough so that it will not significantly
respond to heat surges generated in the diode as a result of
pulsed operation once steady-state conditions are achieved.
L, LEAD LENGTH TO HEAT SINK (INCH)
Figure 2. Typical Thermal Resistance
1000
7000
5000
TYPICAL LEAKAGE CURRENT
AT 80% OF NOMINAL
BREAKDOWN VOLTAGE
Using the measured value of T , the junction temperature
L
2000
may be determined by:
1000
700
500
TJ = TL + ∆TJL
.
∆T is the increase in junction temperature above the lead
JL
200
temperature and may be found from Figure 2 for dc power:
∆TJL = θJLPD.
100
70
50
For worst-case design, using expected limits of I , limits
Z
of P and the extremes of T (∆T ) may be estimated.
D
J
J
20
Changes in voltage, V , can then be found from:
Z
10
7
5
∆V = θVZTJ.
θ
, the zener voltage temperature coefficient, is found
VZ
2
from Figures 4 and 5.
Under high power-pulse operation, the zener voltage will
vary with time and may also be affected significantly by the
zener resistance. For best regulation, keep current
excursions as low as possible.
1
0.7
0.5
+125°C
0.2
Surge limitations are given in Figure 7. They are lower
than would be expected by considering only junction
temperature, as current crowding effects cause temperatures
to be extremely high in small spots, resulting in device
degradation should the limits of Figure 7 be exceeded.
0.1
0.07
0.05
0.02
0.01
0.007
0.005
+25°C
0.002
0.001
3
4
5
6
7
8
9
10 11 12 13 14 15
V , NOMINAL ZENER VOLTAGE (VOLTS)
Z
Figure 3. Typical Leakage Current
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4
1N4370A Series
TEMPERATURE COEFFICIENTS
(–55°C to +150°C temperature range; 90% of the units are in the ranges indicated.)
100
70
50
+12
+10
+8
30
20
+6
V Ă@ĂI (NOTE 2)
Z ZĂ
RANGE
10
+4
+2
0
7
5
RANGE
V Ă@ĂI
Z
ZT
(NOTE 2)
3
2
-2
-4
1
10
2
3
4
5
6
7
8
9
10
11
12
20
30
50
70
100
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
Figure 4a. Range for Units to 12 Volts
Figure 4b. Range for Units 12 to 100 Volts
200
180
160
140
+6
+4
+2
V Ă@ĂI
Z
T Ă=Ă25°C
A
Z
20ĂmA
0
0.01ĂmA
1ĂmA
V Ă@ĂI
Z
ZT
(NOTE 2)
120
100
-2
-4
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE: CHANGES IN ZENER CURRENT DO NOT
NOTE: AFFECT TEMPERATURE COEFFICIENTS
120
130
140
150
160
170
180
190
200
3
4
5
6
7
8
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
Figure 4c. Range for Units 120 to 200 Volts
Figure 5. Effect of Zener Current
1000
500
100
70
T Ă=Ă25°C
A
T Ă=Ă25°C
A
50
0ĂV BIAS
0 BIAS
200
100
50
30
20
1ĂV BIAS
1ĂVOLTĂBIAS
10
20
10
5
7
5
50% OF V ĂBIAS
Z
50% OF
V ĂBIAS
Z
3
2
2
1
1
1
2
5
10
20
50
100
120
140
160
180
190
200
220
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
Figure 6a. Typical Capacitance 2.4–100 Volts
Figure 6b. Typical Capacitance 120–200 Volts
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5
1N4370A Series
100
RECTANGULAR
WAVEFORM
T Ă=Ă25°C PRIOR TO
J
INITIAL PULSE
70
50
11ĂV-91ĂV NONREPETITIVE
1.8ĂV-10ĂV NONREPETITIVE
30
20
5% DUTY CYCLE
10
7
10% DUTY CYCLE
20% DUTY CYCLE
5
3
2
1
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
100
200
500 1000
PW, PULSE WIDTH (ms)
Figure 7a. Maximum Surge Power 1.8–91 Volts
1000
500
1000
700
500
T Ă=Ă25°C
J
i (rms)Ă=Ă0.1 I (dc)
V Ă=Ă2.7ĂV
Z
Z
fĂ=Ă60ĂHz
Z
RECTANGULAR
WAVEFORM, T Ă=Ă25°C
300
200
J
200
100
47ĂV
27ĂV
100
70
50
50
20
100-200ĂVOLTS NONREPETITIVE
30
20
6.2ĂV
10
7
5
10
5
3
2
2
1
1
0.01
0.1
1
10
100
1000
0.1
0.2
0.5
1
2
5
10
20
50 100
PW, PULSE WIDTH (ms)
I , ZENER CURRENT (mA)
Z
Figure 7b. Maximum Surge Power DO-204AH
100–200 Volts
Figure 8. Effect of Zener Current on
Zener Impedance
1000
700
500
1000
500
T Ă=Ă25°C
J
i (rms)Ă=Ă0.1 I (dc)
MAXIMUM
MINIMUM
Z
fĂ=Ă60ĂHz
Z
I Ă=Ă1ĂmA
Z
200
200
100
70
50
100
50
5ĂmA
20ĂmA
20
20
10
5
75°C
10
7
5
25°C
0°C
150°C
2
1
2
1
1
2
3
5
7
10
20 30
50 70 100
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
V , ZENER VOLTAGE (VOLTS)
Z
V , FORWARD VOLTAGE (VOLTS)
F
Figure 9. Effect of Zener Voltage on Zener Impedance
Figure 10. Typical Forward Characteristics
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6
1N4370A Series
20
10
T Ă=Ă25°
A
1
0.1
0.01
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V , ZENER VOLTAGE (VOLTS)
Z
Figure 11. Zener Voltage versus Zener Current — VZ = 1 thru 16 Volts
10
T Ă=Ă25°
A
1
0.1
0.01
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
V , ZENER VOLTAGE (VOLTS)
Z
Figure 12. Zener Voltage versus Zener Current — VZ = 15 thru 30 Volts
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7
1N4370A Series
10
T Ă=Ă25°
A
1
0.1
0.01
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100 105
V , ZENER VOLTAGE (VOLTS)
Z
Figure 13. Zener Voltage versus Zener Current — VZ = 30 thru 105 Volts
10
1
0.1
0.01
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250 260
V , ZENER VOLTAGE (VOLTS)
Z
Figure 14. Zener Voltage versus Zener Current — VZ = 110 thru 220 Volts
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8
1N4370A Series
OUTLINE DIMENSIONS
Zener Voltage Regulators – Axial Leaded
500 mW DO–35 Glass
GLASS DO–35/D0–204AH
CASE 299–02
ISSUE A
NOTES:
B
1. PACKAGE CONTOUR OPTIONAL WITHIN A AND B
HEAT SLUGS, IF ANY, SHALL BE INCLUDED
WITHIN THIS CYLINDER, BUT NOT SUBJECT TO
THE MINIMUM LIMIT OF B.
2. LEAD DIAMETER NOT CONTROLLED IN ZONE F
TO ALLOW FOR FLASH, LEAD FINISH BUILDUP
AND MINOR IRREGULARITIES OTHER THAN
HEAT SLUGS.
3. POLARITY DENOTED BY CATHODE BAND.
4. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
D
K
F
A
MILLIMETERS
DIM MIN MAX
INCHES
MIN
MAX
0.200
0.090
0.022
0.050
1.500
A
B
D
F
3.05
1.52
0.46
---
5.08 0.120
2.29 0.060
0.56 0.018
F
K
1.27
38.10
---
1.000
K
25.40
All JEDEC dimensions and notes apply.
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9
1N4370A Series
Notes
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10
1N4370A Series
Notes
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11
1N4370A Series
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are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
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including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
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1N4370A/D
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