LESHAN RADIO COMP ANY , LTD.
46A–1/2
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 @ TA=25ºC
Maximum
Forward
Voltage
@ TA=25ºC
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
DO–201AD
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 ºC
I FM (Surge)
A PK
IR
µAdc
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 COMP ANY , LTD.
46A–2/2
HER301 – HER308
3A
3A RATING & CHARACTERISTIC CURVES OF HIGH EFFICIENCY DIODES
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
AMBIENT TEMPER ATURE, (ºC)
+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.
(+)
PULSE
GENERATOR
(NOTE 2)
(-)
D.U.T.
OSCILLOSCOPE
(NOTE 1)
1Ω
NON.
INDUCTIVE
(+)
25Vdc
(APPROX)
(-)
50 Ω10 Ω
NONINDUCTIVE NONINDUCTIVE
FIG.1-TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
BASE FOR 10 ns/cm
AVERAGE FORWARD 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
TJ =150ºC
TJ =100ºC
TJ =25ºC
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
TJ =25ºC
Pulse Width=300µs
1% Duty Cycle
.1 .2 .4 1.0 2 4 10 20 40 100
200
100
60
40
20
10
6
4
2
1
TJ =25ºC
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
INSTANTANEOUS REVERSE CURRENT (µA)
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
FIG. 5 - MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
JUNCTION CAPACITANCE,(pF)
REVERSE VOLTAGE,(V)
PEAK FORWARD SURGE CURRENT,(A)
NUMBER OF CYCLES AT 60Hz
INSTANTANEOUS FORWARD CURRENT, (A)
INSTANTANEOUS FORWARD VOLTAGE,(V)
