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