RATING AND CHARACTERISTIC CURVES (HER501 THRU HER508)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
AVERAGE FORWARD CURRENT,(A)
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
6
5
4
3
2
1
0
0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
10
03
05
R3
~H
ER
3
INSTANTANEOUS FORWARD CURRENT,(A)
~H
E
01
04
.1
Tj=25 C
Pulse Width 300us
1% Duty Cycle
HE
R3
HE
1.0
HE
R3
R3
06
~H
ER
3
08
25
50
75
100
125
150
175
AMBIENT TEMPERATURE ( C)
.01
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
.6
.8
1.0
1.2
1.4
1.6
1.8
PEAK FORWAARD SURGE CURRENT,(A)
.001
.4
250
FORWARD VOLT
AGE,(V)
200
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
50
W
NONINDUCTIVE
10
W
NONINDUCTIVE
150
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
100
(+)
25Vdc
(approx.)
( )
1
W
NON-
INDUCTIVE
OSCILLISCOPE
(NOTE 1)
D.U.T.
( )
PULSE
GENERATOR
(NOTE 2)
(+)
50
0
1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
FIG.5-TYPICAL JUNCTION CAPACITANCE
175
trr
+0.5A
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JUNCTION CAPACITANCE,(pF)
150
125
100
75
50
25
0
-0.25A
-1.0A
1cm
SET TIME BASE FOR
50 / 10ns / cm
0
.01
.05
.1
.5
1
5
10
50
100
REVERSE VOLTAGE,(V)
UNIOHM [ UNIOHM CORPORATION ]
