CHENDA HER252 High efficiency rectifier Datasheet

HER251 THRU HER258
HIGH EFFICIENCY RECTIFIERS
Reverse Voltage - 50 to 1000 Volts
Forward Current - 2.5 Amperes
FEATURES
R-3
The plastic package carries Underwriters Laboratory
Flammability Classification 94V-0
High speed switching for high efficiency
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
250 C/10 seconds,0.375”(9.5mm) lead length,
5 lbs. (2.3kg) tension
φ 0.160( 4.1 )
φ0.138 ( 3.5 )
0.042(1.1)
0.040(1.0)
MECHANICAL DATA
0.160(4.1)
0.138(3.5)
Min.1.0 ( 25.4 )
Min.1.0 ( 25.4 )
Dimensions in inches and (millimeters)
Case: JEDEC R-3 molded plastic body
Terminals: Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight:0.012 ounce, 0.58 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%.
MDD Catalog Number
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375”(9.5mm) lead length at TA=50 C
Peak forward surge current
8.3ms single half sine-wave superimposed on
rated load (JEDEC Method)
Maximum instantaneous forward voltage at 2.5A
Maximum DC reverse current
TA=25 C
at rated DC blocking voltage
TA=100 C
Maximum reverse recovery time
(NOTE 1)
Typical junction capacitance (NOTE 2)
Typical thermal resistance (NOTE 3)
Operating junction and storage temperature range
SYMBOLS HER
VRRM
VRMS
VDC
251
HER
252
50
35
50
100
70
100
HER
253
HER HER
254 255
200 300
140 210
200 300
400
280
400
HER
256
HER
257
HER
258
UNITS
600
420
600
800
560
800
1000
700
1000
VOLTS
VOLTS
VOLTS
I(AV)
2.5
Amps
IFSM
60.0
Amps
VF
1.3
1.0
IR
trr
CJ
RθJA
TJ,TSTG
1.70
5.0
100.0
Volts
µA
50
70
ns
30.0
20.0
pF
C/W
C
50.0
-65 to +150
Note:1.Reverse recovery condition IF=0.5A,IR=1.0A,Irr=0.25A
2.Measured at 1MHz and applied reverse voltage of 4.0V D.C.
3.Thermal resistance from junction to ambient at 0.375”(9.5mm)lead length,P.C.B. mounted
FIG. 1- FORWARD CURRENT DERATING CURVE
3
Single Phase Half Wave 60HZ
Resistive or Inductive Load
2.0
1
0
0
25
50
75
100
125
150
175
200
PEAK FORWARD SURGE CURRENT,
AMPERES
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
RATINGS AND CHARACTERISTIC CURVES HER251 THRU HER258
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
60
50
40
30
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
20
10
1
10
AMBIENT TEMPERATURE, C
20
TJ=25 C
PULSE WIDTH=300 µs
1%DUTY CYCLE
1
0.1
HER251-HER253
HER254-HER255
HER256-HER258
0.01
0.2
0.6
1.0
1.4
1.8
2.0
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD
CURRENT,AMPERES
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
10
1,000
100
TJ=100 C
10
1
TJ=25 C
0.1
0.01
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
0
20
40
60
80
100
TJ=25 C
10
HER251-HER255
HER256-HER258
TRANSIENT THERMAL IMPEDANCE,
C/W
200
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
100
10
1
0.1
0.01
0.1
1
10
1
0.1
1.0
10
REVERSE VOLTAGE,VOLTS
100
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 5-TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, pF
100
NUMBER OF CYCLES AT 60 Hz
100
t,PULSE DURATION,sec.
The cruve graph is for reference only, can't be the basis for judgment(曲线图仅供参考)!
100
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