Document
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 25oC ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive
load.
HER HER HER HER HER HER HER HER
Symbols
Units
301 302 303 304 305 306 307 308
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
Maximum average forward rectified current at TA = 55OC
Peak forward surge current
VDC 50 100 200 300 400 600 800 1000 Volts IO 3.0 Amps
8.3mS single half sine-wave superimposed on rated load (JEDEC method)
IFSM
150 Amps
Maximum instantaneous forward voltage at 3.0A DC
Maximum reverse current at rated reverse voltage
TJ = 25OC TJ = 100OC
Maximum reverse recovery time (Note 1)
VF
IR Trr
1.0 50
1.3
10 500
1.7 Volts µAmps
75 nSec
Typical junction capacitance (Note 2) Typical junction resistance (Note 3) Operating and storage temperature range
CJ RθJA TJ ,TSTG
75 50 pF
60 OC/W
-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.
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 12/04/2003
HER301 THRU HER308
PEAK FORWARD SURGE CURRENT, A
REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50 NONINDUCTIVE
10 NONINDUCTIVE
(+) 25Vdc (appox) (-)
DUT
1 NON INDUCTIVE
PULSE GENERATOR (NOTE 2)
OSCILLOSCOPE (NOTE 1)
NOTES:1. Rise Time=7ns max. Input Impedance= 1 megohm 22 pf
2. Rise Time=10ns max. Sourse Impedance= 50 ohms
+0.5A
0 -0.25A
trr
-1.0A
1cm
SET TIME BASE FOR 50ns/cm
PEAK FORWARD SURGE CURRENT
150 120 90 60 30
0 1 2 4 6 10 20 40 60 100
NUMBER OF CYCLES AT 60 Hz
FORWARD CHARACTERISTICS 10
HER301 TYPICAL 1
HER308 Tj=25oC 0.1
AVERAGE FORWARD CURRENT (A)
TYPICAL FORWARD CURRENT DERATING
4.0 0.375" (9.5mm) LENGTH
3.0 2.0 1.0
0 25 50 75 100 125 150 175 200 AMBIENT TEMPERATURE,o C
TYPICAL REVERSE LEAKAGE CHARACTERISTICS
100
Tj=150 oC 10
Tj =100 oC 1
Tj=25 oC 0.1
INSTANTANEOUS REVERSE LEAKAGE CURRENT, (MICROAMPERES)
FORWARD CURRENT, AMPERES
0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
FORWARD VOLTAGE VOLTS
0.01 0
20 40 60 80 .