RATING AND CHARACTERISTIC CURVES 1N5333B THRU 1N5388B
TEMPERATURE COEFFICIENTS
Figure 1. Temperature Coefficient-Range
for Units 3 to 10 Volts
θ
V
Z
, TEMPERATURE COEFFICIENT
10
8
(mV/℃)
＠I
ZT
6
4
2
0
-2
3
4
5
6
7
8
9
10
RANGE
Figure 2. Power Temperature Derating
Curve
P
D
, MAXIMUM POWER DISSIPATION
(WATTS)
8
L=1/8”
L=LEAD LENGTH
TO HEAT SINK
(SEE FIGURE 5)
6
L=3/8”
4
L=1”
2
0
0
30
60
90
120
150
V
Z
, ZENER VOLTAGE
＠I
ZT
(VOLTS)
T
L
, LEAD TEMPERATUE (℃)
Figure 3. Typical Thermal Response
L, Lead Length=3/8 Inch
(t, D), TRANSIENT THERMAL
RESISTANCE
20
JUNCTION-TO-LEAD (℃/W)
D=0.5
10
5
2
1
0.5
D=0
D=0.2
D=0.1
D=0.05
D=0.01
P
PK
t
1
t
2
NOTE: BELOW 0.1 SECOND, THERMAL
RESPONSE CURVE IS APPLICABLE
TO ANY LEAD LENGTH (L).
DUTY CYCLE, D=t
1
/t
2
SINGLE PULSE
△
T
JL
=θ
REPETITIVE PULSES
△
T
JL
=θ
JL
(t)P
PK
JL
(t,D)P
PK
θ
JL
0.2
0.001
0.005
0.01
0.05 0.1
0.5
1
5
10
20
50 100
t, TIME (SECONDS)
Figure 4. Temperature Coefficient-Range
for Units 10 to 220 Volts
θ
V
Z
, TEMPERATURE COEFFICIENT
300
200
100
RANGE
Figure 5. Typical Thermal Resistance
JUNCTION-TO-LEAD THERMAL
40
RESISTANCE (℃/W)
30
(mV/℃)
＠I
ZT
50
30
20
10
20
L
L
10
PRIMARY PATH OF
CONDUCTION THROUGH
THE CATHODE LEAD
JL
5
0 20 40
60 80 100 120 140 160 180 200 220
0
0
0.2
0.4
0.6
0.8
1
θ
V
Z
, ZENER VOLTAGE
＠I
ZT
(VOLTS)
LEAD LENGTH TO HEAT SINK (INCHES)
1N5333B THRU 1N5388B
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FRONTIER [ FRONTIER ELECTRONICS. ]
