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

BY251 THRU BY255
Features
3.0 AMPS. Silicon Rectifiers
Voltage Range
200 to 1300 Volts
Current
3.0 Amperes
DO-201AD
Low forward voltage drop
High current capability
High reliability
High surge current capability
Mechanical Data
Cases: Molded plastic
Epoxy: UL 94V-O rate flame retardant
Lead: Axial leads, solderable per MIL-
STD-202, Method 208 guaranteed
Polarity: Color band denotes cathode end
High temperature soldering guaranteed:
260^oC/10 seconds/.375”,(9.5mm) lead
lengths at 5 lbs., (2.3kg) tension
Weight: 1.2 grams
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25℃ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Symbol BY251 BY252 BY253 BY254 BY255 Units
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current . 375 (9.5mm) Lead Length
@TA = 75℃
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated
Load (JEDEC method )
Maximum Instantaneous Forward Voltage
@ 3.0A
V_RRM
V_RMS
V_DC
I_(AV)
I_FSM
V_F
200
140
200
400
280
400
600
420
600
3.0
150
1.0
800 1300 V
560 910 V
800 1300 V
A
A
V
Maximum DC Reverse Current @ TA=25℃
at Rated DC Blocking Voltage @ TA=100℃
I_R
5.0
uA
100
uA
Maximum Full Load Reverse Current, Full
Cycle Average .375”(9.5mm) Lead Length
HTIR
30
uA
@TL=75℃
Typical Junction Capacitance ( Note 1 )
Cj
40
pF
Typical Thermal Resistance ( Note 2 )
RθJA
40
℃/W
Operating Temperature Range
TJ
-65 to +150
℃
Storage Temperature Range
TSTG
-65 to +150
℃
Notes: 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C.
2. Mount on Cu-Pad Size 16mm x 16mm on P.C.B.
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