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Dated : 21/06/2007
®
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
BZX55T Series
SILICON EPITAXIAL PLANAR ZENER DIODES
Features
• Very sharp reverse characteristic
• Low reverse current level
• Very high stability
• Low noise
• Available with tighter tolerances
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Symbol
Value
Unit
Power Dissipation
Ptot
500
mW
Junction Temperature
Tj
175
O
C
Storage Temperature Range
TS
- 65 to + 175
O
C
Maximum Thermal Resistance (Ta = 25 OC)
Parameter
Symbol
Max.
Unit
Thermal Resistance Junction to Ambient Air
RthJA
300
K/W
Characteristics at Ta = 25 OC
Parameter
Symbol
Max.
Unit
Forward Voltage
at IF = 200 mA
VF
1.5
V
Max. 3.9
Max. 1.9
Glass Case DO-35
Max. 0.5
Min. 27.5
Min. 27.5
XXX
Cathode Band
Part No.
ST
"ST" Brand
Dimensions in mm
Black
Black
Black