ZMM5221...ZMM5267
Silicon Planar Zener Diodes
Standard zener voltage tolerance is ± 20%. Add suffix "A"
for ± 10% tolerance, suffix "B" for ± 5% tolerance and
suffix "C" for ± 2% tolerance. Other tolerance, non
standard and higher zener voltages are upon request.
LL-34
Absolute Maximum Ratings (T
a
= 25
O
C)
Parameter
Power Dissipation
Junction Temperature
Storage Temperature Range
1)
Symbol
P
tot
T
j
T
stg
Value
500
1)
Unit
mW
O
175
- 65 to + 175
C
C
O
Valid provided that electrodes are kept at ambient temperature.
Characteristics at T
a
= 25
O
C
Parameter
Thermal Resistance Junction to Ambient Air
Forward Voltage
at I
F
= 200 mA
1)
Symbol
R
thA
V
F
Max.
0.3
1)
1.1
Unit
K/mW
V
Valid provided that electrodes are kept at ambient temperature.
®
SEMTECH
Dated : 24/12/2009 Rev: 01
ZMM5221...ZMM5267
500
Power Dissipation: Ptot (mW)
400
300
200
100
0
0
25
100
150
Ambient Temperature: Ta ( C)
O
200
Power Derating Curve
®
SEMTECH
Dated : 24/12/2009 Rev: 01
详细参数
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