1N957B – 1N977B 500mW Zener Diodes

500mW Zener Diodes
1N957B – 1N977B
500mW Zener Diodes
Features
• Hermetically sealed glass package zener diodes
• RoHS Compliant
DO-35
Mechanical Data
Case:
Terminals:
Hermetically sealed axial lead glass case, DO-35 package
Leads, tin-lead plated solderable per MIL-STD-750, method 2026
Polarity:
Color band denotes cathode
Weight:
0.2 gram
Maximum Ratings (TA=25ºC unless noted otherwise)
Symbol
Description
ZV
Zener Voltage
PD
DC Power Dissipation
TJ,
TSTG
Operating Junction and Storage Temperature
Range
Value
Unit
6.8 to 47
V
400
mW
-65 to 175
°C
Note: 1. These ratings are limiting values above which the serviceability of the diode may be
impaired.
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel: (800)-TAITRON (800)-824-8766 (661)-257-6060
Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415
Rev. A/AH
Page 1 of 3
500mW Zener Diodes
1N957B – 1N977B
Electrical Characteristics (TA=25ºC unless noted otherwise)
Normal Zener Voltage
Part
Number
(Note1)
Maximum Zener Impedance
VZ @ IZT
Nom.
(V)
Min.
(V)
Max.
(V)
IZT
(mA)
1N957B
6.8
6.46
7.14
18.5
1N958B
7.5
7.13
7.88
1N959B
8.2
7.79
1N960B
9.1
1N961B
ZZT @ IZT
(Ω)
Maximum
Reverse Leakage
Current
Zzk @ Izk
IR @ VR
(Note2)
Typical
TEMP.
Coeff. Of
Zener
Voltage
vz
Maximum
Zener
Current
IZM
(Ω)
(mA)
(µA)
(V)
(mA)
(%/° C)
4.5
700
1.0
150
5.2
47
+0.05
16.5
5.5
700
0.5
75
5.7
42
+0.058
8.61
15.0
6.5
700
0.5
50
6.2
38
+0.062
8.65
9.56
14.0
7.5
700
0.5
25
6.9
35
+0.068
10
9.50
10.50
12.5
8.5
700
0.25
10
7.6
32
+0.072
1N962B
11
10.45
11.55
11.5
9.5
700
0.25
5
8.4
28
+0.073
1N963B
12
11.40
12.60
10.5
11.5
700
0.25
5
9.1
26
+0.076
1N964B
13
12.35
13.65
9.5
13.0
700
0.25
5
9.9
24
+0.079
1N965B
15
14.25
15.75
8.5
16.0
700
0.25
5
11.4
21
+0.082
1N966B
16
15.20
16.80
7.8
17.0
700
0.25
5
12.2
19
+0.083
1N967B
18
17.10
18.90
7.0
21.0
750
0.25
5
13.7
17
+0.085
1N968B
20
19.00
21.00
6.2
25.0
750
0.25
5
15.2
15
+0.086
1N969B
22
20.90
23.10
5.6
29.0
750
0.25
5
16.7
14
+0.087
1N970B
24
22.80
25.20
5.2
33.0
750
0.25
5
18.2
13
+0.088
1N971B
27
25.65
28.35
4.6
41.0
750
0.25
5
20.6
11
+0.090
1N972B
30
28.50
31.50
4.2
49.0
1000
0.25
5
22.8
10
+0.091
1N973B
33
31.35
34.65
3.8
58.0
1000
0.25
5
25.1
9.2
+0.092
1N974B
36
34.20
37.80
3.4
70.0
1000
0.25
5
27.4
8.5
+0.093
1N975B
39
37.05
40.95
3.2
80.0
1000
0.25
5
29.7
7.8
+0.094
1N976B
43
40.85
45.15
3.0
93.0
1500
0.25
5
32.7
7.0
+0.095
1N977B
47
44.65
49.35
2.7
105.0
1500
0.25
5
35.8
6.4
+0.095
Note 1: The part numbers shown above have a Zener voltage tolerance of ±5% of the
nominal Zener voltage.
2: IZM Values shown are based on the JEDEC rating of 400 milliwatts. Where the actual zener
voltage (VZ) is known at the operating point, the maximum zener current may be increased
and is limited by the derating curve.
Rev. A/AH
www.taitroncomponents.com
Page 2 of 3
500mW Zener Diodes
1N957B – 1N977B
Dimensions in inch (mm)
How to contact us
DO-35
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Rev. A/AH
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