FEATURES
● Low cost
● Diffused junction
● Ultra fast switching for high efficiency
● Low reverse leakage current
● Low forward voltage drop
● High current capability
● The plastic material carries UL recognition 94V-0
MECHANICAL DATA
●Case: JEDEC DO-27 molded plastic
●Polarity: Color band denotes cathode
●Weight: 0.04 ounces , 1.1 grams
●Mounting position: Any Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25℃ ambient temperature unless otherwise specified.
Single phase, half wave ,60Hz, resistive or inductive load.
For capacitive load, derate current by 20%
CHARACTERISTICS SYMBOLHER501HER502HER503HER504HER505HER506HER507HER508 UNIT
Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 300 400 600 800 1000 V
Maximum RMS Voltage VRMS 35 70 140 210 280 420 560 700 V
Maximum DC Blocking Voltage VDC 50 100 200 300 400 600 800 1000 V
Maximum Average Forward
Rectified Current @TA =55 ℃
Peak Forward Surage Current
8.3ms Single Half Sine-Wave
Super Imposed on Rated Load(JEDEC Method)
Peak Forward Voltage at 5.0A DC VF1.3 V
Maximum DC Reverse Current @TJ=25℃
at Rated DC Blocking Voltage @TJ=100℃
Maximum Reverse Recovery Time (Note1) TRR nS
Typical Junction Capacitance (Note2) CJpF
Typical Thermal Resistance (Note3) RθJA ℃/W
Operating Temperature Range TJ℃
Storage Temperature Range TSTG ℃
AIFSM
1.71.0
200
~ 97 ~
100
IRuA
2.Measured at 1.0 MHz and applied reverse voltage of 4.0V DC
3.Thermal resistance junction to ambient
NOTES: 1.Measured with IF=0.5A，IR=1A ，IRR=0.25A
5.0
20
-50 to +125
-50 to +150
50 75
75 50
5.0 AI(AV)
HER501 thru HER508
HIGH EFFICIENCY RECTIFIERS REVERSE VOLTAGE - 50 to 1000 Volts
FORWARD CURRENT - 5.0 Amperes
DO- 27
DIA.
DIA
210
.375(9.5)
.335(8.5)
.052(1.3)
.048(1.2)
.220(5.6)
.197(5.0)
1.0(25.4)
1.0(25.4)
MI
MI
RATING AND CHARACTERTIC CURVES
HER501 thru HER508
~ 98 ~
0.1
1.0
0.01
10
40 60
80
100 120 140
20
1000
100
TJ = 150°
C
TJ = 100°C
TJ = 25°C
FLG.2 –TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVESE CURRENT,
(μA)
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
FIG. 4 – MAXIMUM NON-REPETITIVE
FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60Hz
PEAK FORWARD SURGE CURRENT,
(A)
8.3ms SINGLE HALF-SINE -WAVE
(JEDEC METHOD)
200
150
10
01000
100
110
REVERSE VOLTAGE ,(V)
CAPACITANCE, (pF)
FIG.5 – TYPICAL JUNCTION CAPACITANCE
0.1
200
10
1.0 10 100
1
1000
100 HER501 - HER505
HER506 - HER508
TJ = 25°C
FIG.3-TYPICAL INTANTANEOUS FORWARD
CHARACTERICS
INSTANTANEOUS FORWARD CURRENT,
(A)
INSTANTANEOUS FORWARD VOLTAGE,(V)
0.1
1.0
0.01
10
0.8 1.0
1.2
1.4 1.6 1.8
0.2
100
0.6
0.4
HER501-HER504
HER505
HER506-HER508
TJ = 25°C
PULSE WIDTH 300us
1% DUTY CYCLE
FIG. 1 –TYPICAL FORWARD
CURRENT DERATING CURVE
AMBIENT TEMPERATURE (℃)
AVERAGE FORWARD CURRENT
AMPERES
1.0
025
4.0
6.0
50 75 100 125 150 175
2.0
3.0
5.0
0
SINGLE PHASE
HALF WAVE 60Hz
RESISTIVE OR
INDUCTIVE LOAD
