BY251P thru BY255P Vishay Semiconductors formerly General Semiconductor General Purpose Rectifiers Reverse Voltage 200 to 1300V Forward Current 3.0A DO-201AD Features 1.0 (25.4) Min. • Plastic package has Underwriters Laboratories Flammability Classification 94V-0 • High surge current capability • Typical IR less than 0.1 µA • Construction utilizes void-free molded plastic technique • 3.0 Ampere operation at TA = 55 °C with no thermal runaway • High temperature soldering guaranteed: 250 °C/10 seconds, 0.375" (9.5 mm) lead length 5 lbs. (2.3 kg) tension 0.210 (5.3) 0.190 (4.8) Dia. 0.375 (9.5) 0.285 (7.2) Mechanical Data 1.0 (25.4) Min. Case: JEDEC DO-201AD, molded plastic body Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.04 oz., 1.12 g 0.052 (1.32) 0.048 (1.22) Dia. Dimensions in inches and (millimeters) Maximum Ratings & Thermal Characteristics Parameter Ratings at 25 °C ambient temperature unless otherwise specified. Symbol BY251P BY252P BY253P BY254P BY255P Unit Maximum repetitive peak reverse voltage VRRM 200 400 600 800 1300 V Maximum RMS voltage VRMS 140 280 420 560 910 V Maximum DC blocking voltage VDC 200 400 600 800 1300 V Maximum average forward rectified current 10mm lead length at TA = 55 °C IF(AV) 3.0 A Peak forward surge current 10ms single half sine-wave superimposed on rated load (JEDEC Method) IFSM 150 A Maximum full load reverse current, full cycle average 10mm lead length at TA = 55 °C IR(AV) 100 µA Typical thermal resistance(1) RθJA RθJL 20 10 °C/W TJ, TSTG –65 to +150 °C Operating junction and storage temperature range Electrical Characteristics Ratings at 25 °C ambient temperature unless otherwise specified. Maximum instantaneous forward voltage at 3.0A VF 1.1 V Maximum reverse current at rated DC blocking voltage TA = 25°C IR 5.0 µA Typical reverse recovery time IF = 0.5A, IR = 1.0V, Irr = 0.25A trr 3.0 µs Typical junction capacitance at 4.0V, 1MHz CJ 40 pF Note: (1) Thermal resistance from junction to ambient and from junction to lead at 0.375” (9.5mm) lead length, P.C.B. mounted Document Number 88838 17-Dec-02 www.vishay.com 1 BY251P thru BY255P Vishay Semiconductors formerly General Semiconductor Ratings and Characteristic Curves (TA = 25°C unless otherwise noted) Fig 2 - Maximum Non-repetitive Peak Forward Surge Current Fig 1 - Forward Current Derating Curve 200 3.0 Peak Forward Surge Current (A) 60 Hz Resistive or Inductive Load 2.0 1.0 10mm lead length 0 25 50 75 125 100 Ambient Temperature, ¡C 150 100 TA = 55°C 100 TJ = 25°C Pulse width = 300µs 1% Duty Cycle 10 1 0.1 0.6 1.2 0.7 0.8 0.9 1.0 1.1 Instantaneous Forward Voltage (V) 1 175 Fig 3 - Typical Instantaneous Forward Characteristics Instantaneous Forward Current (A) 8.3ms Single Half Sine-Wave (JEDEC Method) 10 0 1.3 Instantaneous Reverse Leakage Current ( A) Average Forward Rectified Current (A) 4.0 10 Number of Cycles at 60Hz 100 Fig 2 - Maximum Non-repetitive Peak Forward Surge Current 10 TJ = 125°C 1 TJ = 75°C 0.1 TJ = 25°C 0.01 0 40 80 60 100 20 Percent of Rated Peak Reverse Voltage (%) Fig 5 - Typical Junction Capacitance 100 Junction Capacitance (pF) TJ = 25°C f = 1.0 MHz Vsig = 50mVp-p 10 1 www.vishay.com 2 10 Reverse Voltage (V) 100 Document Number 88838 17-Dec-02