HER301 THRU HER308
HIGH EFFICIENCY RECTIFIERS
Reverse Voltage -
50 to 1000 Volts
DO-201AD
Forward Current -
3.0 Amperes
FEATURES
1.0 (25.4)
MIN.
0.220(5.6)
0.197(5.0)
DIA.
0.375(9.5)
0.285(7.2)
The plastic package carries Underwriters Laboratory
Flammability Classification 94V-0
High switching for high efficiency
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
250 C/10 seconds,0.375
”
(9.5mm) lead length,
5 lbs. (2.3kg) tension
MECHANICAL DATA
1.0 (25.4)
MIN.
0.052(1.3)
0.048(1.2)
DIA.
Dimensions in inches and (millimeters)
Case:
JEDEC DO-201AD molded plastic body
Terminals:
Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity:
Color band denotes cathode end
Mounting Position:
Any
Weight:0.04
ounce, 1.10 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%.
SYMBOLS
HER
301
HER
302
HER
303
HER HER
304 305
HER
306
HER
307
HER
308
UNITS
VOLTS
VOLTS
VOLTS
Amps
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375”(9.5mm) lead length at T
A
=50 C
Peak forward surge current
8.3ms single half sine-wave superimposed on
rated load (JEDEC Method)
Maximum instantaneous forward voltage at 3.0A
Maximum DC reverse current
T
A
=25 C
at rated DC blocking voltage
T
A
=100 C
Maximum reverse recovery time
(NOTE 1)
Typical junction capacitance (NOTE 2)
Typical thermal resistance (NOTE 3)
Operating junction and storage temperature range
V
RRM
V
RMS
V
DC
I
(AV)
50
35
50
100
70
100
200 300 400
140 210 280
200 300 400
3.0
600
420
600
800
560
800
1000
700
1000
I
FSM
V
F
I
R
t
rr
C
J
R
q
JA
T
J
,
T
STG
50
70.0
1.0
200.0
1.3
5.0
150.0
150.0
1.70
Amps
Volts
u
A
70
50
20.0
-65 to +150
ns
pF
C/W
C
Note:1.Reverse
recovery condition I
F
=0.5A,I
R
=1.0A,Irr=0.25A
2.Measured at 1MHz and applied reverse voltage of 4.0V D.C.
3.Thermal resistance from junction to ambient at 0.375”(9.5mm)lead length,P.C.B. mounted
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RATINGS AND CHARACTERISTIC CURVES HER301 THRU HER308
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
FIG. 1- FORWARD CURRENT DERATING CURVE
£PEAK FORWARD SURGE CURRENT,
AMPERES
3.0
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
200
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
160
2.4
1.8
120
HER301-HER305
80
HER306-HER308
40
1.2
Single Phase
Half Wave 60Hz
Resistive or
inductive Load
0.6
0
0
25
50
75
100
125
150
175
0
1
10
100
AMBIENT TEMPERATURE, C
NUMBER OF CYCLES AT 60 Hz
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
20
1,000
10
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD
CURRENT,AMPERES
T
J
=25 C
PULSE WIDTH=300
ms
1%DUTY CYCLE
100
1
TJ=100 C
10
0.1
HER301-HER303
HER304-HER305
HER306-HER308
0.01
0.2
0.6
1.0
1.4
1.8
2.0
1
TJ=25 C
0.1
0.01
0
20
40
60
80
100
INSTANTANEOUS FORWARD VOLEAGE,
VOLTS
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 5-TYPICAL JUNCTION CAPACITANCE
400
200
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
TRANSIENT THERMAL IMPEDANCE,
C/W
100
JUNCTION CAPACITANCE, pF
T
J
=25 C
10
20
1
HER301-HER305
HER306-HER308
0.1
0.01
0.1
1
10
100
2
0.1
1.0
10
100
REVERSE VOLTAGE,VOLTS
t,PULSE DURATION,sec.
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Embedded System
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