LESHAN RADIO COMPANY, LTD.
46A1/2
3A
3A HIGH EFFICIENCY DIODES
HER301
HER302
HER303
HER304
HER305
HER306
HER307
HER308
TYPE
Maximum
Peak Reverse
Voltage
Maximum Average
Rectified Current
@ Half-Wave
Resistive Load 60Hz
Maximum Forward
Peak Surge Current
@ 8.3ms
Superimposed
Maximum
Reverse Current
@ PRV @ T
A
=25C
Maximum
Forward
Voltage
@ T
A
=25C
Package
Dimensions
1.00
1.00
1.00
1.30
1.30
1.85
1.85
1.85
Maximum
Reverse
Recovery Time
3.0
50
100
200
300
400
600
800
1000
DO201AD
PRV
V
PK
HER301 HER308
Trr
I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
Trr Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
I
O
@ T
L
A
AV
C
I
FM
(Surge)
A
PK
I
R
Adc
I
FM
V
FM
A
PK
V
PK
Trr
ns
200
10
3.0
50
150
70
.052(1.3)
DIA
.048(1.2)
.220(5.6)
DIA
.197(5.0)
1.0(25.4)
MIN
.375(9.5)
.335(8.5)
1.0(25.4)
MIN
DO 201AD
LESHAN RADIO COMPANY, LTD.
46A2/2
HER301 HER308
3 A
3A RATING & CHARACTERISTIC CURVES OF HIGH EFFICIENCY DIODES
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
AMBIENT TEMPER ATURE, (C)
+0.5A
0
-0.25A
-1.0A
SET TIME
1cm
Trr
NOTES:1.Rise Time=7ns max.
Input Impedance=1megohm.22pF.
2.Rise Time=10ns max.
Source Impedance=50 ohms.
(+)
P U L S E
G E N E R AT O R
( N O T E 2 )
(-)
D.U.T.
OSCILLOSCOPE
(NOTE 1)
1
N O N .
INDUCTIVE
(+)
25Vdc
(APPROX)
(-)
50
10
NONINDUCTIVE
NONINDUCTIVE
FIG.1-TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
BASE FOR 10 ns/cm
A
VERAGE FOR
W
ARD CURRENT
,(A)
0
50
100
150
175
6
5
4
3
2
1
0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
20
40
60
80
100
120
140
1000
100
10
1.0
.1
.01
T
J
=150C
T
J
=100C
T
J
=25C
300
200
100
0
.2
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
100
10
1.0
.1
.01
8.3ms Single Half Sine-Wave
(JEDEC Method)
1
10
100
1000
T
J
=25C
Pulse Width=300
s
1% Duty Cycle
.1
.2
.4
1.0
2
4
10
20
40
100
200
100
60
40
20
10
6
4
2
1
T
J
=25C
50/100/200V
800/1000V
HER301-HER305
HER306(G)-HER308(G)
HER306-HER308
600V
300/400V
HER301(G)-HER305(G)
FIG. 3 - TYPICAL REVERSE
CHARACTERISTICS
FIG. 4 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INST
ANT
ANEOUS REVERSE CURRENT (
A)
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
FIG. 5 - MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
JUNCTION CAP
ACIT
ANCE,(pF)
REVERSE VOLTAGE,(V)
PEAK FOR
W
ARD SURGE CURRENT
,(A)
NUMBER OF CYCLES AT 60Hz
INST
ANT
ANEOUS FOR
W
ARD CURRENT
, (A)
INSTANTANEOUS FORWARD VOLTAGE,(V)
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