RL251 THRU RL257 GENERAL PURPOSE PLASTIC RECTIFIERS Reverse Voltage – 50 to 1000 Volts Forward Current – 2.5 Amperes Features • Plastic package has Underwriters Laboratory • Flammability Classification 94V-0 • High surge current capability. • 2.5 ampere operation at TA=75oC with no thermal • runaway. • Low reverse leakage. • Construction utilizes void-free molded plastic technique. • High temperature soldering guaranteed: • 250oC/10 seconds, 0.375”(9.5mm) lead length, • 5 lbs (2.3kg) tension. Mechanical Data • Case: Molded plastic, R-3 • Terminals: Plated axial leads, solderable per • MIL-STD-750, method 2026 • Polarity: Color band denotes cathode end. • Mounting Position: Any. Absolute Maximum Ratings andCharacteristics @ 250C unless otherwise specified. Symbols RL251 RL252 RL253 RL254 RL255 RL256 RL257 Units Maximum repetitive peak reverse voltage VRRM 50 100 200 400 600 800 1000 Volts Maximum RMS voltage VRMS 35 70 140 280 420 560 700 Volts Maximum DC blocking voltage VDC 50 100 200 400 600 800 1000 Volts Maximum average forward current at TA = 75 OC I(AV) 2.5 Amps IFSM 150 Amps VF 1.1 Volts Peak forward surge current 8.3mS single half sine-wave superimposed on rated load (MIL-STD-750D 4066 method) Maximum instantaneous forward voltage at IFM=2.5A , TA=25oC(Note 2) Maximum DC reverse current TA = 25 OC IR at rated DC blocking voltage TA = 100OC Typical thermal resistance RθJA Typical junction capacitance (Note 1) Operating and storage temperature range 5 µA 50 35 CJ 35 TJ ,TS -65 to +175 O C/W pF O C Notes: (1) Measured at 1MHZ and applied reverse voltage of 4volts (2) Pulse test: pulse width 300uSec, Duty cycle 1%. SEMTECH ELECTRONICS LTD. ® (Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 11/11/2002