BY251 THRU BY255
GENERAL PURPOSE PLASTIC RECTIFIER
Reverse Voltage - 200 to 1300 Volts
Forward Current - 3.0 Amperes
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DIMENSIONS
DIM
inches mm
Note
Min. Max. Min. Max.
A 0.283 0.374 7.20 9.50
B 0.189 0.208 4.80 5.30
C 0.048 0.051 1.20 1.30
D 1.000 - 25.40 -
Symbols BY251 BY252 BY253 BY254 BY255 Units
Peak repetitive reverse voltage VRRM 200 400 600 800 1300 Volts
Forward current at Tamb=50 I(AV) 3.0 Amps
8.3mS peak forward surge current IFSM 100.0 Amps
Recurrent peak forward current IFRM 20.0 Amps
Maximum forward voltage drop at IF=3.0A VF1.1 Volts
Maximum reverse current at VRRM IR10.0 A
Maximum thermal resistance (I=10mm) R JA 30.0 /W
Operating and storage temperature range TJ, TSTG -65 to +150
Features
Low cost
Diffused junction
High current capability
The plastic material carries U/L recognition 94V-0
Terminals: Axial leads
Polarity: Color band denotes cathode
Maximum Ratings and Electrical Characteristics
Mounting Instruction
Min. distance from body to soldering point, 4mm
Max. solder temperature, 350
Max. soldering time: 3.5 Sec.
Do not bend lead at a point closer than 3mm to the body
RATINGS AND CHARACTERISTIC CURVES
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