RATING AND CHARACTERISTICS CURVES
1N5338B THRU 1N5388B
TEMPERATURE COEFFICIENTS
PD, MAXIUMU POWER DISSIPATION (WATTS)
θV
Z , TEMPERATURE COEFFICIENT
(mV/°C) @ I ZT
300
200
100
50
30
20
10
5
0
20 40 60
80 100 120 140 160 180 200 220
RANGE
8
6
4
2
0
0
20
40
60
80
100
120
VZ, ZENER VOLTAGE @IZT (VOLTS)
TL, LEAD TEMPERATURE
θ
JL (t, D), TRANSIENT THERMAL RESISTANCE
JUNCTION‐TO‐LEAD (
°
C/W)
Fig. 1-POWER TEMPERATURE DERATING CURVE
20
10
5
2
1
0.5
D=0
0.2
0.001
0.005 0.01
D = 0.5
D = 0.2
D = 0.1
D = 0.05
D = 0.01
Fig. 2-TEMPERATURE COEFFICIENT-RANGE FOR UNITS
6 TO 51 VOLTS
P
PK
t
1
t
2
NOTE: BELOW 0.1 SECOND, THERMAL
NOTE:
RESPONSE CURVE IS APPLICABLE
NOTE:
TO ANY LEAD LENGTH (L).
0.05
0.1
DUTY CYCLE, D = t
1
/t
2
SINGLE PULSE
D
T
JL
=
q
JL
(t)P
PK
REPETITIVE PULSES
D
T
JL
=
q
JL
(t, D)P
PK
0.5
1
5
10
20
50
100
t, TIME (SECONDS)
Figure
3.
Typical Thermal Response
L, Lead Length = 3/8 Inch
JL, JUNCTION-TO -LEAD THERMAL
RESISTANCE (C/W)
IR, PEAK SURGE CURRENT (AMPS)
40
20
10
4
2
1
PW = 1000ms*
0.4
0.2
0.1
3
SINE / SQUARE WAVE PW = 100ms*
4
6
8 10
20
30 40
60 80 100
200
PW = 1ms*
PW = 8.3ms*
40
30
20
10
0
MOUNT ON 8.0mm
COPPER PADS TO
EACH TERMINAL
2
0
0.2
0.4
0.6
0.8
1
L, LEAD LENGTH TO HEAT SINK (INCH)
NOMINAL VZ(V)
Fig. 4-TYPICAL THERMAL RESISTANCE
Fig. 5-MAXIMUM NON-REPETITIVE SURGE
CURRENT VERSUS NOMINAL ZENER
VOLTAGE (SEE NOTE 3)
KI SEMICONDUCTOR
KISEMICONDUCTOR [ Kwang Myoung I.S. CO.,LTD ]
