RATING CHARACTERISTIC CURVES ( UBM31PT THRU UBM38PT )
FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
50
10
trr
NONINDUCTIVE
NONINDUCTIVE
+0.5A
3.0
2.5
2.0
1.5
( - )
PULSE
GENERATOR
(NOTE 2)
D.U.T
0
( + )
25 Vdc
(approx)
( - )
-0.25A
Single Phase
Half Wave 60Hz
Resistive or
1.0
0.5
1
OSCILLOSCOPE
(NOTE 1)
( + )
NON-
Inductive Load
INDUCTIVE
-1.0A
0
1cm
0
25 50 75 100 125 150 175
LEAD TEMPERATURE ( OC )
NOTES: 1. Rise Time = 7 ns max. Input Impedance =
1 megohm. 22 pF.
SET TIME BASE FOR
10 nS/cm
2. Rise Time = 10 ns max. Source Impedlance=
50 ohms.
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
FIG. 4 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
10
100
10
T
J
=100oC
=75oC
Pulse Width = 300uS
1% Duty Cycle
1.0
0.1
TJ
1.0
.1
TJ
=25oC
TJ
=25oC
.01
.001
.01
0
20
40
60
80
100
120
140
0
.2
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % )
INSTANTANEOUS FORWARD VOLTAGE, ( V )
FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
140
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
200
100
120
8.3ms Single Half Sine-Wave
(JEDEC Method)
60
40
100
80
20
10
60
6
4
40
TJ
=25oC
20
0
2
1
1
2
5
10
20
50
100
.1
.2
.4
1.0
2
4
10
20 40
100
NUMBER OF CYCLES AT 60 Hz
REVERSE VOLTAGE, ( V )
CHENMKO [ CHENMKO ENTERPRISE CO. LTD. ]
