BY254

BY251 THRU BY255 GENERAL PURPOSE PLASTIC RECTIFIER Reverse Voltage - 200 to 1300 Volts Forward Current - 3.0 Amperes 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 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 DIM ENSIONS DIM A B C D inches Min. 0.283 0.189 0.048 1.000 Max. 0.374 0.208 0.051 Min. 7.20 4.80 1.20 25.40 mm Max. 9.50 5.30 1.30 Note Maximum Ratings and Electrical Characteristics Symbols BY251 BY252 BY253 BY254 BY255 Units Peak repetitive reverse voltage Forward current at Tamb=50 8.3mS peak forward surge current Recurrent peak forward current Maximum forward voltage drop at IF=3.0A Maximum reverse current at VRRM Maximum thermal resistance (I=10mm) Operating and storage temperature range VRRM I(AV) IFSM IFRM VF IR R JA 200 400 600 3.0 100.0 20.0 1.1 10.0 30.0 -65 to +150 800 1300 Volts Amps Amps Amps Volts A /W TJ, TSTG 1 RATINGS AND CHARACTERISTIC CURVES 2 ...