1N957B - 1N984B ZENER DIODES
V
Z
:
6.8 to 91V
P
D
:
500mW
FEATURES :
• Silicon planar power zener diodes.
• Standard Zener voltage tolerance is ± 5%
• Other tolerances are available upon request.
• Pb / RoHS Free
Case: DO-35 Glass Case
Weight: approx. 0.13g
Maximum Ratings and Thermal Characteristics
Rating at
25
°
C ambient temperature unless otherwise specified
.
Symbol Value Unit
Zener Current see Table "Characteristics"
Maximum Forward Voltage at IF = 200 mA. VF1.5 V
Power Dissipation at TL = 25°CPD500(1) mW
Thermal Resistance Junction to Ambient Air RθJA 300(1) °C/W
Junction temperature TJ175 °C
Storage temperature range TS-65 to + 150 °C
Notes:
(1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature.
Page 1 of 2 Rev. 02 : March 25, 2005
Parameter
DO - 35 Glass
(DO-204AH)
0.079(2.0 )max.
0.150 (3.8)
max.
0.020 (0.52)max.
Dimensions in inches and ( millimeters )
1.00 (25.4)
min.
1.00 (25.4)
min.
Cathode
Mark
ELECTRICAL CHARACTERISTICS
Rating at 25 °C ambient temperature unless otherwise specified
Zener Voltage Maximum Zener Maximum Reverse Maximum DC.
Type
V
Z
@ I
ZT
Impedance
(1)
Leakage Current Zener Current
Number Nominal I
ZT
Z
ZT
@ I
ZT
Z
Zk
@ I
ZK
I
ZK
I
R
at V
R
I
ZM
(2)
(V) (mA) (Ω) (Ω)(mA) (µA) (V) (mA)
1N957B 6.8 18.5 4.5 700 1.00 150 5.2 58
1N958B 7.5 16.5 5.5 700 0.50 75 5.7 53
1N959B 8.2 15.0 6.5 700 0.50 50 6.2 47
1N960B 9.1 14.0 7.5 700 0.50 25 6.9 43
1N961B 10 12.5 8.5 700 0.25 10 7.6 40
1N962B 11 11.5 9.5 700 0.25 5 8.4 36
1N963B 12 10.5 11.5 700 0.25 5 9.1 32
1N964B 13 9.5 13 700 0.25 5 9.9 29
1N965B 15 8.5 16 700 0.25 5 11.4 27
1N966B 16 7.8 17 700 0.25 5 12.2 24
1N967B 18 7.0 21 750 0.25 5 13.7 21
1N968B 20 6.2 25 750 0.25 5 15.2 20
1N969B 22 5.6 29 750 0.25 5 16.7 18
1N970B 24 5.2 33 750 0.25 5 18.2 16
1N971B 27 4.6 41 750 0.25 5 20.6 14
1N972B 30 4.2 49 1000 0.25 5 22.8 13
1N973B 33 3.8 58 1000 0.25 5 25.1 12
1N974B 36 3.4 70 1000 0.25 5 27.4 11
1N975B 39 3.2 80 1000 0.25 5 29.7 10
1N976B 43 3.0 93 1500 0.25 5 32.7 9.2
1N977B 47 2.7 105 1500 0.25 5 35.8 8.5
1N978B 51 2.5 125 1500 0.25 5 38.8 7.8
1N979B 56 2.2 150 2000 0.25 5 42.6 6.9
1N980B 62 2.0 185 2000 0.25 5 47.1 6.3
1N981B 68 1.8 230 2000 0.25 5 51.7 5.7
1N982B 75 1.7 270 2000 0.25 5 56 5.2
1N983B 82 1.5 330 3000 0.25 5 62.2 4.7
1N984B 91 1.4 440 3000 0.25 5 69.2 4.3
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 (IZT) 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 25°C ambient temperature.
(3) The type number listed have a standard tolerance on the nominal zener voltage of ± 5.0%.
Page 2 of 2 Rev. 02 : March 25, 2005