Dated : 12/04/2003
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
HER301 THRU HER308
HIGH EFFICIENCY RECTIFIERS
Reverse Voltage – 50 to 1000 Volts
Forward Current – 3.0 Amperes
Features
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-O utilizing
Flame Retardant Epoxy Molding Compound.
•
Void-free Plastic in DO-201AD package.
•
3.0 amperes operation at Ta = 55 oC with no
thermal runaway
•
Ultra Fast switching for high efficiency.
Mechanical Data
•
Case: Molded plastic, DO-201AD
•
Polarity: Band denotes cathode
•
Lead: Axial leads, solderable per MIL-STD-202 method 208 guaranteed
•
Mounting Position: Any
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
oC ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive
load.
Symbols
HER
301
HER
302
HER
303
HER
304
HER
305
HER
306
HER
307
HER
308
Units
Maximum repetitive peak reverse voltage
VRRM
50
100
200
300
400
600
800 1000 Volts
Maximum RMS voltage
VRMS
35
70
140
210
280
420
560
700
Volts
Maximum DC blocking voltage
VDC
50
100
200
300
400
600
800 1000 Volts
Maximum average forward rectified current
at TA = 55
OC
IO
3.0
Amps
Peak forward surge current
8.3mS single half sine-wave superimposed
on rated load (JEDEC method)
IFSM
150
Amps
Maximum instantaneous forward voltage at 3.0A DC
VF
1.0
1.3
1.7
Volts
Maximum reverse current
TJ = 25
OC
at rated reverse voltage
TJ = 100
OC
IR
10
500
µAmps
Maximum reverse recovery time (Note 1)
Trr
50
75
nSec
Typical junction capacitance (Note 2)
CJ
75
50
pF
Typical junction resistance (Note 3)
RθJA
60
OC/W
Operating and storage temperature range
TJ ,TSTG
-55 to +150
OC
Notes: 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = -0.25A.
2. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
3. Thermal resistance from junction to ambient and from junction to lead length 0.375”(9.5mm) P.C.B.
mounted.
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