RL256

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 Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward current at TA = 75 OC 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 at rated DC blocking voltage TA = 100OC Typical thermal resistance Typical junction capacitance (Note 1) Operating and storage temperature range Notes: (1) Measured at 1MHZ and applied reverse voltage of 4volts (2) Pulse test: pulse width 300uSec, Duty cycle 1%. VF IR RθJA CJ TJ ,TS 1.1 5 50 35 35 -65 to +175 O RL251 50 35 50 RL252 100 70 100 RL253 200 140 200 RL254 400 280 400 2.5 150 RL255 600 420 600 RL256 800 560 800 RL257 1000 700 1000 Units Volts Volts Volts Amps Amps VRRM VRMS VDC I(AV) IFSM Volts µA C/W pF O C SEMTECH ELECTRONICS LTD. ® (Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 11/11/2002