RL251 . . . 257 Series Data Sheet 2.5 Amp MINIATURE PLASTIC SILICON RECTIFIERS Description Mechanical Dimensions JEDEC D0-15 .230 .300 1.00 Min. .104 .140 .031 typ. Features n LOW COST n DIFFUSED JUNCTION n LOW LEAKAGE n MEETS UL SPECIFICATION 94V-0 Electrical Characteristics @ 25oC. RL251 . . . RL257 Series Maximum Ratings RL251 RL252 RL253 RL254 Units RL255 RL256 RL257 Peak Repetitive Reverse Voltage...VRRM 50 100 200 400 600 800 1000 Volts RMS Reverse Voltage...VR(rms) 35 70 140 280 420 560 700 Volts DC Blocking Voltage...VDC 50 100 200 400 600 800 1000 Volts Average Forward Rectified Current...IF(av) TA = 55C (Note 3) ............................................. 2.5 ............................................... Amps Non-Repetitive Peak Forward Surge Current...IFSM @ Rated Current & Temp ............................................. 200 ............................................... Amps Forward Voltage @ 3.0A...VF ............................................. 1.0 ............................................... Volts DC Reverse Current...IR @ 25C @ Rated DC Blocking Voltage @ 75C ............................................. 1.0 ............................................... ............................................. 100 ............................................... Amps Amps Typical Junction Capacitance...CJ (Note 1) < .................... Typical Thermal Resistance...RJC (Note 2) ............................................. 28 ............................................... C / W Operating & Storage Temperature Range...TJ, TSTRG ......................................... -65 to 175 .......................................... C Page 9-10 50 ................... > < ............. 25 ............ > pF 2.5 Amp MINIATURE PLASTIC SILICON RECTIFIERS Instantaneous Forward Characteristics Distribution Amps pF Typical Junction Capacitance RL251 . . . 257 Series Data Sheet TJ = 25C Reverse Voltage (Volts) Forward Voltage (Volts) TJ = 175 C PW = 8.3ms Forward Current Derating Curve Amps Amps Peak Forward Surge Current Ratings at 25 Deg. C ambient temperature unless otherwise specified. Number of Cycles @ 60 Hz 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. TA = Ambient Temperature (C) Single Phase Half Wave, 60 HZ Resistive or Inductive Load. For Capacitive Load, Derate Current by 20%. Page 9-11