BY251 Datasheet, PDF (1/2 Pages) Pan Jit International Inc. – MEDIUM CURRENT PLASTIC RECTIFIER(VOLTAGE - 200 to 1300 Volts CURRENT - 3.0 Amperes)

RoHS
BY251-BY255
GENERAL PURPOSE SILICON RECTIFIER
WEJ ELECTRONIC CO.,LTD FEATURES
Low cost construction
Low forward voltage drop
Low reverse leakage
High forward surge current capability
High temperature soldering guaranteed:
260^oC/10 seconds/0.375 (9.5mm)lead length
at 5 lbs (2,3kg) tension
MECHANICAL DATA
Case:Transfer molded plastic
Epoxy:UL94V-0 rate flame retardant
Polarity:Color band denotes cathode end
Lead:Plated axial lead ,solderable per MIL-STD-202E
method 208C
Mounting position:Any
Weight:0.042 ounce,1.19 grams
VOLTAGE RANGE
CURRENT
1.0(25.4)
MIN
200 to 1300 Volts
3.0 Amperes
.052(1.3) _DIA.
.048(1.2)
DO-27
.375(9.5)
.335(8.5)
1.0(25.4)
MIN
.220(5.6) _DIA
.197(5.0)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25^oCambient temperature unless otherwise specified.
Single phase,half wave,60Hz,resistive or inductive load.
For capacitive load derate current by 20%.
Maximum Repetitive Peak Reverse Voltage
SYMBOLS
VRRM
BY
251
200
BY
252
400
Maximum RMS Voltage
VRMS
140
280
Maximum DC Blocking Voltage
VDC
200
400
Maximum Average Forward Rectified Current
0.375 (9.5mm) lead length at TA=75 ^oC
I ( AV )
Peak Forward Surge Current
8.3ms single half sine-wave superimposed on
IFSM
rated load (JEDEC Method)
Maximum Instantaneous Forward Voltage at 3.0A VF
Maximum DC Reverse Current
at rated DC blocking voltage
TA=25 ^oC
TA=150 ^oC
IR
Maximum Full Load Reverse Current,full cycle
average 0.375 (9.5mm) lead length at TL=105 ^oC
I R ( AV )
Typical Junction Capacitance(NOTE1)
CJ
Typical Thermal Resistance(NOTE2)
R JA
BY
253
600
420
600
BY
254
800
560
800
3.0
150
1.1
10
500
500
40
30
BY
255
1300
910
1300
UNITS
Volts
Volts
Volts
Amps
Amps
Volts
Amps
Amps
pF
O_C/W
Operating and Storage Temperature Range
TJ,TSTG
-65 to +175
O_C
NOTES:
1.Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts.
2.Thermal Resistance from Junction to Ambient at 0.5 (12.5mm) lead length,P.C.board mounted with 0.8 X0.8
(20X20mm)copper heatsink.
WEJ ELECTRONIC CO. Http:// www.wej.cn E-mail:[e-mail]