BY251 FCI | Alldatasheet
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nMEETS UL SPECIFICATION 94V-0 Electrical Characteristics @ 25oC. Maximum Ratings BY251 . . . 255 Series Data Sheet 3.0 Amp MINIATURE PLASTIC SILICON RECTIFIERS Units Volts Volts Volts Amps Amps Amps Volts µAmps °C / W BY251 BY252 BY253 BY254 BY255 200 400 600 800 1300 140 280 420 560 910 200 400 600 800 1300 Peak Repetitive Reverse Voltage...V RRM RMS Reverse Voltage...VR(rms) DC Blocking Voltage...VDC nLOW COST nHIGH CURRENT CAPABILITY Page 9-14 Average Forward Rectified Current...I F(av) TA = 50°C (Note 3) Repetitive Peak Forward Surge Current...I FM Non-Repetitive Peak Forward Surge Current...I FSM @ Rated Current & Temp Forward Voltage @ 3.0A...VF DC Reverse Current...IR Typical Thermal Resistance...RθJC (Note 2) Operating & Storage Temperature Range...T J, TSTRG BY251 . . . 255 Series .285 .375 1.00 Min. .050 typ. .190 .210 JEDEC D0-201AD
Data Sheet 3.0 Amp MINIATURE PLASTIC SILICON RECTIFIERS 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%. Page 9-15 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. BY251 . . . 255 Series Thermal Resistance Lead Length (mm) oC/Watt Instantaneous Forward Characteristics Forward Voltage (Volts) Amps Peak Forward Surge Current Number of Cycles @ 60 Hz Amps Forward Current Derating Curve Amps TA = Ambient Temperature ( °°°°°C) LL = 10mm Resistive Load Capacitive Load TJ = 175 °°°°°C PW = 8.3ms