1N53 Series
40
30
20
L
L
10
EQUAL CONDUCTION
THROUGH EACH LEAD
0
0
0.2
0.4
0.6
0.8
1
L, LEAD LENGTH TO HEATSINK (INCH)
Figure 1. Typical Thermal Resistance
TEMPERATURE COEFFICIENTS
10
8
6
4
2
RANGE
0
-2
3
4
5
6
7
8
9
10
VZ, ZENER VOLTAGE @ IZT (VOLTS)
Figure 2. Temperature Coefficient-Range for Units 3 to 10 Volts
300
200
100
RANGE
50
30
20
10
5
0 20 40 60 80 100 120 140 160 180 200 220
VZ, ZENER VOLTAGE @ IZT (VOLTS)
Figure 3. Temperature Coefficient-Range for Units 10 to 220 Volts
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