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Dated : 25/06/2007
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
ZS Series
SILICON PLANAR ZENER DIODES
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Symbol
Value
Unit
Power Dissipation
Ptot
400
1)
mW
Junction Temperature
Tj
175
O
C
Storage Temperature Range
TS
- 65 to + 175
O
C
1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Characteristics at Ta = 25 OC
Parameter
Symbol
Max.
Unit
Thermal Resistance Junction to Ambient Air
RthA
0.3
1)
K/mW
Forward Voltage
at IF = 100 mA
VF
1
V
1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Characteristics at Ta = 25 OC
Zener Voltage
1)
Maximum Dynamic Resistance
Maximum Reverse Leakage Current
Type
Min. (V)
Max. (V)
IZT (mA)
(Ω) at IZT
IZT (mA)
IR (µA)
VR (V)
ZS3C-1
3.1
3.3
ZS3C-2
3.2
3.4
ZS3C-3
3.3
3.5
5
100
5
5
0.5
ZS33-1
31.2
32.6
ZS33-2
32.2
33.6
ZS33-3
33.2
34.6
2
120
2
1
25
1) Tested with pulses tp = 20 ms.
Max. 2.9
Max. 1.9
Glass Case DO-34
Max. 0.45
Min. 27.5
Min. 27.5
XXX
Cathode Band
Part No.
Dimensions in mm
Black
Black