<Se.mi-Gonauctoi ^P
20 STERN AVE.
SPRINGFIELD, NEW JERSEY 07081
U.S.A.
, line.
TELEPHONE: (973) 376-2922
1N957THRU 1N978
DO-35
Silicon Planar Power Zener Diodes
(212)227-6005
FAX: (973) 376-8960
Standard Zener voltage tolerance is ±5% for
"B" suffix. Other tolerances are available upon
request.
£• "E
max. 0.079 (2.0)
-Cathode
Mark
max. 0.020 (0.52)
MECHANICAL DATA
Case:
DO-35 Glass Case
Weight:
approx. 0.13 g
Dimensions are in inches and (millimeters)
MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOL
VALUE
UNIT
Zener Current (see Table "Characteristics")
Power Dissipation at TL = 75°C
Junction Temperature
Storage Temperature Range
NOTES:
Plot
500<
1
>
mW
°C
°C
Tj
Ts
175
-65 to +175
(1) TL is measured 3/8" from body.
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance
Junction to Ambient Air
Forward Voltage
at IF = 200 mA
NOTES:
RthJA
-
-
300
(1)
°c/w
Volts
VF
-
-
1.5
(1) Valid provided that leads at a distance of 3/8" from case are kept at ambient temperature.
NJ Semi-Conductors reserves the right to change test conditions, parameter limits and package dimensions without
notice. Information furnished by NJ Semi-Conductors is believed to be both accurate and reliable at the time of going
to press. However, NJ Semi-Conductors assumes no responsibility for any errors or omissions discovered in its use.
NJ Semi-Conductors encourages customers to verify that datasheets are current before placing orders.
Quality Semi-Conductors
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Type
Number
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1 N974B
1N975B
1N976B
1N977B
1N978B
Nominal
Zener Voltage
Vz
<3>
(Volts)
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
Test
Current
IZT
(mA)
Maximum Zener Impedance'
1
*
Maximum
Regulator Current
IZM<
2
>
Maximum Reverse Current
IR Maximum
(MA)
ZZT @ IZT
(fi)
4.5
5.5
6.5
7.5
8.5
9.5
ZZK @ IZK
(")
IZK
(mA)
1
0.5
0.5
0.5
(mA)
47
42
38
35
32
28
26
24
21
19
17
15
14
13
11
10
9.2
8.5
7.8
7
6.4
5.9
Test Voltage Vdc
(Volts)
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
18.5
16.5
15
14
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
150
75
50
25
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
12.5
11.5
10.5
9.5
8.5
7.8
7
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3
2.7
2.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
11.5
13
16
17
21
25
29
33
41
49
58
70
80
93
105
125
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
1000
1000
1000
1000
1500
1500
1500
NOTES:
(1) The Zener Impedance is derived from the 1 KHz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (Izr) is
superimposed on IZT. Zener Impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units.
(2) Valid provided that leads at a distance of 3/8" from case are kept at ambient temperature.
(3) Measured with device junction in thermal equilibrium.
Embedded System
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