GENERAL DATA — 1–1.3 WATT DO-41 GLASS
Motorola TVS/Zener Device Data
6-21
1–1.3 Watt DO-41 Glass Data Sheet
Figure 2. Temperature Coefficients
(–55°C to +150°C temperature range; 90% of the units are in the ranges indicated.)
a. Range for Units to 12 Volts b. Range for Units to 12 to 100 Volts
+12
+10
+8
+6
+4
+2
0
–2
–4
2 3 4 5 6 7 8 9 10 11 12
VZ, ZENER VOLTAGE (VOLTS)
θ
V
Z
, TEMPERATURE COEFFICIENT (mV/
°
C)
100
70
50
30
20
10
7
5
3
2
1
10 20 30 50 70 100
VZ, ZENER VOLTAGE (VOLTS)
θ
V
Z
, TEMPERATURE COEFFICIENT (mV/
°
C)
VZ@ I
ZT
RANGE
RANGE VZ@ I
ZT
Figure 3. Typical Thermal Resistance
versus Lead Length
Figure 4. Effect of Zener Current
175
150
125
100
75
50
25
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
L, LEAD LENGTH TO HEAT SINK (INCHES)
θ
JL
, JUNCTION-TO-LEAD THERMAL RESISTANCE (mV/
°
C/W)
θ
V
Z
, TEMPERATURE COEFFICIENT (mV/
°
C)
+6
+4
+2
0
–2
–4
3 4 5 6 7 8
VZ, ZENER VOLTAGE (VOLTS)
VZ@ I
Z
TA= 25
°
C
20 mA
0.01 mA
1 mA
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE: CHANGES IN ZENER CURRENT DO NOT
NOTE: EFFECT TEMPERATURE COEFFICIENTS
Figure 5. Maximum Surge Power
100
70
50
30
20
10
7
5
3
2
1
0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 20 50 100 200 500 1000
PW, PULSE WIDTH (ms)
This graph represents 90 percentile data points.
For worst case design characteristics, multiply surge power by 2/3.
P
pk
, PEAK SURGE POWER (WATTS)
11V–100V NONREPETITIVE
3.3 V–10 V NONREPETITIVE
5% DUTY CYCLE
10% DUTY CYCLE
20% DUTY CYCLE
RECTANGULAR
WAVEFORM
TJ= 25
°
C PRIOR TO
INITIAL PULSE