HIGH EFFICIENCY RECTIFIER
VOLTAGE RANGE
CURRENT
50 to 1000 Volts
2.5Ampere
HER251 THRU HER257
R-3
.042(1.1)
.038(0.96)
DIA.
FEATURES
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Low coat construction
Fast switching for high efficency.
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
260℃/10 secods/.375”(9.5mm)lead length at 5 lbs(2.3kg) tension
1.0(25.4)
MIN.
.160(4.1)
.138(3.5)
.160(4.1)
.138(3.5)
DIA.
MECHANICAL DATA
1.0(25.4)
MIN.
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Case: Transfer molded plastic
Epoxy: UL94V-O rate flame retardant
Polarity: Color band denotes cathode end
Lead: Plated axial lead, solderable per MIL-STD-202E method 208C
Mounting position: Any
(millimeters)
Dimensions in inches and
Weight: 0.020ounce, 0.56 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
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Ratings at 25OC ambient temperature unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load
For capacitive load derate current by 20%
HER
251
50
35
50
HER HER HER
HER HER
HER
257
800
560
800
HER
UNITS
258
1000 Volts
700 Volts
1000 Volts
SYMBOLS
252
100
70
253
200
140
200
254
300
210
300
255
400
280
400
256
600
420
600
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
VRRM
VRMS
VDC
Maximum DC Blocking Voltage
100
Maximum Average Forward Rectified Current
0.375”(9.5mm) lead length at TA= 50℃
I(AV)
2.5
Amp
Peak Forward Surge Current
8.3mS single half sine wave superimposed on
rated load (JEDEC method)
IFSM
VF
IR
100
Amps
Maximum Instantaneous Forward Voltage @ 2.5A
1.0
1.3
5.0
250
1.5
1.7
Volts
TA = 25℃
TA = 125℃
Maximum DC Reverse Current at Rated
DC Blocking Voltage
µA
Maximum Full Load Recovery Current,full cycle
average 0.375”(9.5mm)lead length at TL=55℃
Maximum Reverse Recovery Time
Test conditions IF=0.5A,IR=1.0A,IRR=0.25A
IR(AV)
trr
100
µA
50
30
75
35
ns
Typical Thermal Resistance (NOTE 2)
Typical Thermal Resistance(NOTE 1)
Operating Junction Temperature Range
Storage Temperature Range
Notes:
PF
℃/W
℃
CJ
RθJA
TJ
35
(-55 to +150)
(-55 to +150)
℃
TSTG
1 Thermal resistance from junction to ambient with .375”(9.5mm)lead length, PCB. mounted. .
2. Measured at 1.0 MHz and applied reverse of 4.0 V
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