• 1N962B-1 THRU 1N986B-1 AVAILABLE IN
JAN, JANTX AND JANTXV
PER MIL-PRF-19500/117
• METALLURGICALLY BONDED
• DOUBLE PLUG CONSTRUCTION
1N957 thru 1N986B
and
1N962B-1 thru 1N986B-1
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500 mW @ +50°C
Power Derating: 4 mW / °C above +50°C
Forward Voltage @ 200mA: 1.1volts maximum
ELECTRICAL CHARACTERISTICS @ 25°C
JEDEC
TYPE
NUMBER
(NOTE 1)
NOMINAL
ZENER
VOLTAGE
Z
(NOTE 2)
VOLTS
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
1N978B
1N979B
1N980B
1N981B
1N982B
1N983B
1N984B
1N985B
1N986B
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
110
V
ZENER
TEST
CURRENT
1
ZT
Z
mA
18.5
16.5
15.0
14.0
12.5
11.5
10.5
9.5
8.5
7.8
7.0
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.0
1.8
1.7
1.5
1.4
1.3
1.1
ZT
@1
(NOTE 3)
ZT
Z
@1
ZK
ZK
OHMS
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
4000
mA
1.0
.5
.5
.5
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
1
ZM
mA
55
50
45
41
38
32
31
28
25
24
20
18
16
15
13
12
11
10
9.5
8.8
7.9
7.4
6.8
6.0
5.5
5.0
4.6
4.1
3.7
3.3
lR @ VR
MAXIMUM ZENER IMPEDANCE
MAX. DC
ZENER
CURRENT
MAX. REVERSE
LEAKAGE CURRENT
OHMS
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
16
17
21
25
29
33
41
49
58
70
90
93
105
125
150
185
230
270
330
400
500
750
µ
A
5
5
5
5
2
1
1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
VOLTS
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
11
12
14
15
17
18
21
23
25
27
30
33
36
39
43
47
52
56
62
69
76
84
FIGURE 1
DESIGN DATA
CASE:
Hermetically sealed glass
case. DO – 35 outline.
LEAD MATERIAL:
Copper clad steel.
LEAD FINISH:
Tin / Lead
THERMAL RESISTANCE: (R
OJEC):
250 ˚C/W maximum at L = .375 inch
THERMAL IMPEDANCE: (Z
OJX): 35
˚C/W maximum
POLARITY:
Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION:
Any.
NOTE 1
NOTE 2
NOTE 3
Zener voltage tolerance on "B"suffix is + 5%. Suffix letter A denotes +10%. No Suffix
denotes + 20% tolerance, "C" suffix denotes + 2% and "D" suffix denotes + 1%.
Zener voltage is measured with the device junction in thermal equilibrium at
an ambient temperature of 25°C + 3°C.
Zener impedance is derived by superimposing on 1 A 60Hz rms a.c. current
ZT
equal to 10% of 1
ZT
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: mail@cdi-diodes.com
1N957
thru
1N986B
INCLUDING -1 VERSIONS
FIGURE 2
Pd, Rated Power
Dissipation (mW)
500
400
300
200
100
0
0
25
50
75
100
125
150
175
TA, Ambient temperature (C°)
POWER DERATING CURVE
1000
500
400
300
200
ZENER IMPEDANCE ZZT (OHMS)
3.
3
VO
LT
27
100
VO
LT
1
5.
LT
VO
50
40
30
20
11
VO
LT
10
5
4
3
2
6.2
VO
LT
1
.1
.2 .3 .4 .5
1
2 5
10
20
OPERATING CURRENT lZT (mA)
30 40
50
100
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
stm32/stm8
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