1N957B...1N963B
Vishay Telefunken
Silicon Z–Diodes
Features
D D D D
Very sharp reverse characteristic Very high stabili...
1N957B...1N963B
Vishay Telefunken
Silicon Z–Diodes
Features
D D D D
Very sharp reverse characteristic Very high stability Low reverse current level VZ–tolerance ± 5%
Applications
94 9367
Voltage stabilization
Absolute Maximum Ratings
Tj = 25_C Parameter Power dissipation Z–current Junction temperature Storage temperature range Test Conditions TL 75°C
x
Type
Symbol PV IZ Tj Tstg
Value 500 PV/VZ 200 –65...+200
Unit mW mA °C °C
Maximum Thermal Resistance
Tj = 25_C Parameter Junction ambient Test Conditions l=9.5mm (3/8”), TL=constant Symbol RthJA Value 300 Unit K/W
Electrical Characteristics
Tj = 25_C Parameter Forward
voltage Test Conditions IF=200mA Type Symbol VF Min Typ Max 1.1 Unit V
Rev. A3, 13-Nov-98
1 (3)
1N957B...1N963B
Vishay Telefunken
Type 1N957B 1N958B 1N959B 1N960B 1N961B 1N962B 1N963B
VZnom 1) V 6.8 7.5 8.2 9.1 10 11 12
IZT for rzjT mA W 20 < 4.5 20 < 5.5 20 < 6.5 20 < 7.5 20 < 8.5 20 < 9.5 20 < 11.5
rzjk at IZK mA < 700 1.0 < 700 0.5 < 700 0.5 < 700 0.5 < 700 0.25 < 700 0.25 < 700 0.25
W
mA max
150 75 50 25 10 5 5
IR at VR V 5.2 5.7 6.2 6.9 7.6 8.4 9.1
TK VZ %/K < –0.045 < +0.050 < +0.058 < +0.062 < +0.065 < +0.068 < +0.075
1.)Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30 K/W.
Dimensions in mm
Cathode Identification ∅ 0.55 max.
technical drawings according to DIN specifications 94 9366
∅ 1.7 max.
Standard Glass Case 54 A 2 DIN 41880 JEDEC DO 35 Weight max. 0.3 g
26 min.
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