BY254

Data Sheet 3.0 Amp MINIATURE PLASTIC SILICON RECTIFIERS Mechanical Dimensions JEDEC D0-201AD .190 .210 .285 .375 1.00 Min. BY251 . . . 255 Series Description .050 typ. Features n LOW COST n HIGH CURRENT CAPABILITY n DIFFUSED JUNCTION n MEETS UL SPECIFICATION 94V-0 Electrical Characteristics @ 25oC. Maximum Ratings Peak Repetitive Reverse Voltage...VRRM RMS Reverse Voltage...VR(rms) DC Blocking Voltage...VDC Average Forward Rectified Current...IF(av) TA = 50°C (Note 3) Repetitive Peak Forward Surge Current...IFM Non-Repetitive Peak Forward Surge Current...IFSM @ Rated Current & Temp Forward Voltage @ 3.0A...VF DC Reverse Current...IR Typical Thermal Resistance...RθJC (Note 2) Operating & Storage Temperature Range...TJ, TSTRG BY251 . . . 255 Series BY251 200 140 200 BY252 400 280 400 BY253 600 420 600 BY254 800 560 800 BY255 1300 910 1300 Units Volts Volts Volts Amps ............................................. 3.0 ............................................... ............................................. 20 ............................................... ............................................. 100 ............................................... Amps Amps ............................................. 1.1 ............................................... ............................................. 20 ............................................... ............................................. 30 ............................................... ......................................... -50 to 150 .......................................... Volts µAmps °C / W °C Page 9-14 Data Sheet 3.0 Amp MINIATURE PLASTIC SILICON RECTIFIERS Thermal Resistance Instantaneous Forward Characteristics Lead Length (mm) Forward Voltage (Volts) Peak Forward Surge Current Forward Current Derating Curve Amps Amps TJ = 175° C PW = 8.3ms LL = 10mm Resistive Load Capacitive Load Ratings at 25 Deg. C ambient temperature unless otherwise specified. Single Phase Half Wave, 60 HZ Resistive or Inductive Load. For Capacitive Load, Derate Current by 20%. Number of Cycles @ 60 Hz TA = Ambient Temperature (°C) NOTES: 1. Measured @ 1 MHZ and applied reverse voltage of 4.0V. 2. Thermal Resistance Junction to Ambient, Jedec Method. 3. When Mounted to heat sink, from body. Page 9-15 BY251 . . . 255 Series C/Watt Amps o