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HER258 Datasheet Preview

HER258 Datasheet

HIGH EFFICIENCY RECTIFIER

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HIGH EFFICIENCY RECTIFIER
HER251 THRU HER258
VOLTAGE RANGE
CURRENT
50 to 1000 Volts
2.5Ampere
FEATURES
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
MECHANICAL DATA
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
Weight: 0.020ounce, 0.56 grams
1.0(25.4)
MIN.
.160(4.1)
.138(3.5)
1.0(25.4)
MIN.
.042(1.1)
.038(0.96)
DIA.
R-3
.160(4.1) DIA.
.138(3.5)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
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 HER HER HER
SYMBOLS 251 252 253 254
HER
255
Maximum Repetitive Peak Reverse Voltage
VRRM
50 100 200 300 400
Maximum RMS Voltage
VRMS 35 70 140 210 280
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
0.375(9.5mm) lead length at TA= 50
Peak Forward Surge Current
8.3mS single half sine wave superimposed on
rated load (JEDEC method)
VDC 50 100 200 300 400
I(AV)
2.5
IFSM 100
Maximum Instantaneous Forward Voltage @ 2.5A
VF
1.0
1.3
Maximum DC Reverse Current at Rated
DC Blocking Voltage
TA = 25
TA = 125
IR
5.0
250
Maximum Full Load Recovery Current,full cycle
average 0.375(9.5mm)lead length at TL=55
IR(AV)
100
Maximum Reverse Recovery Time
Test conditions IF=0.5A,IR=1.0A,IRR=0.25A
trr
50
Typical Thermal Resistance (NOTE 2)
Typical Thermal Resistance(NOTE 1)
CJ
RθJA
30
35
Operating Junction Temperature Range
TJ
(-55 to +150)
Storage Temperature Range
TSTG
(-55 to +150)
Notes:
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
HER
256
600
420
600
1.5
HER
257
800
560
800
HER
258
1000
700
1000
UNITS
Volts
Volts
Volts
Amp
Amps
1.7 Volts
µA
µA
75 ns
35 PF
/W
E-mail: sales@cnmic.com Web Site: www.cnmic.com




MIC

HER258 Datasheet Preview

HER258 Datasheet

HIGH EFFICIENCY RECTIFIER

No Preview Available !

HIGH EFFICIENCY RECTIFIER
HER251 THRU HER258
VOLTAGE RANGE
CURRENT
50 to 1000 Volts
2.5Ampere
RATING AND CHRACTERISTIC CURVES HER251 THRU HER258
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
3.0
2.0
1.0
0
0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375"(9.5mm)Lead Length
25
50
75
100 125
150
AMBIENT TEMPERATURE, (° C)
175
FIG.2-MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
150
8.3ms Single Half Sine-Wave
(JEDEC Method) Tj=Tjmax
100
50
1 Cycle
01
2
4 6 8 10
20
40 60
NUMBER OF CYCLES AT 60 Hz
100
FIG.3-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
100
10
1.0
Tj =25° C
Pulse Width=300us
1% Duty Cycle
0.01
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG.5-TYPICAL JUNCTION CAPACITANCE
100
HER251-HER255
HER256-HER258
10
TJ=25° C F=1MHz
Vsig =5 0m Vp-p
1
0.1 1.0 10
REVERSE VOLTAGE,(V)
100
FIG.4-TYPICAL REVERSE
CHARACTERISTICS
100
10
1.0
0.1
0
Tj =125° C
Tj =25° C
20 40 60 80 100 120
PERCENT OF RATED PEAK
REVERSE VOLTAGE,(%)
140
FIG.6-TEST CIRCUIT DIAGRAM AND
REVERSE REXOVERY TIME CHARACTERISTIC
50Ω
NONINDUCTIVE
10Ω
NONINDUCTIVE
(+)
25 Vdc
approx
(-)
D.U.T
1Ω
NON
INDUCTIVE
(-)
PULSE
GENERATIOR
(NOTE 2)
OSCILLOSCOPE
(NOTE 1)
+0.5A
0
0.25A
-1.0A
NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF
2.Rise time=10ns max.Source Impedance=50 ohms
Trr
1cm
SET TIME BASE FOR
50 /100NS /cm
E-mail: sales@cnmic.com Web Site: www.cnmic.com


Part Number HER258
Description HIGH EFFICIENCY RECTIFIER
Maker MIC
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HER258 Datasheet PDF






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