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
o
C 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
o
C 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
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
O
at T
A
= 55 C
Peak forward surge current
8.3mS single half sine-wave superimposed
on rated load (JEDEC method)
Maximum instantaneous forward voltage at 3.0A DC
Maximum reverse current
at rated reverse voltage
T
J
= 25
O
C
O
T
J
= 100 C
V
RRM
V
RMS
V
DC
I
O
I
FSM
V
F
I
R
T
rr
C
J
R
θJA
T
J
,T
STG
50
35
50
100
70
100
200
140
200
300
210
300
3.0
150
400
280
400
600
420
600
800 1000
560
700
800 1000
Volts
Volts
Volts
Amps
Amps
1.0
1.3
10
500
50
75
60
-55 to +150
1.7
Volts
µAmps
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Typical junction resistance (Note 3)
Operating and storage temperature range
75
50
nSec
pF
O
C/W
O
C
Notes: 1. Test Conditions: I
F
= 0.5A, I
R
= -1.0A, I
RR
= -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
REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
NONINDUCTIVE
10
NONINDUCTIVE
+0.5A
DUT
(+)
25Vdc
(appox)
(-)
1
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
-1.0A
1cm
SET TIME BASE FOR
50ns/cm
PULSE
GENERATOR
(NOTE 2)
0
-0.25A
trr
NOTES:1. Rise Time=7ns max. Input Impedance=
1 megohm 22 pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT, A
TYPICAL FORWARD CURRENT DERATING
AVERAGE FORWARD CURRENT (A)
150
120
90
60
30
0
1
2
4 6 10 20
40 60 100
NUMBER OF CYCLES AT 60 Hz
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
FORWARD CHARACTERISTICS
10
FORWARD CURRENT, AMPERES
T
j
=150 C
10
o
HER301
TYPICAL
1
INSTANTANEOUS REVERSE LEAKAGE
CURRENT, (MICROAMPERES)
T
j
=100 C
1
o
0.1
HER308
o
Tj=25 C
T
j
=25 C
o
0.1
0.01
0
0.2 0.4 0.6
0.8
1.0 1.2 1.4
1.6
0.01
0
20
40
60
80
100
120
140
FORWARD VOLTAGE
VOLTS
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 12/04/2003
Microcontroller MCU
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