SF21 SYNSEMI | Alldatasheet
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PRV : 50 - 1000 Volts Io : 2.0 Amperes FEATURES : * High current capability * High surge current capability * High reliability * Low reverse current * Low forward voltage drop * Super fast recovery time * Pb / RoHS Free MECHANICAL DATA : * Case : D2 Molded plastic * Epoxy : UL94V-O rate flame retardant * Lead : Axial lead solderable per MIL-STD-202, Method 208 guaranteed * Polarity : Color band denotes cathode end * Mounting position : Any * Weight : 0.465 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. SYMBOLSF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 SF29 UNIT Maximum Recurrent Peak Reverse Voltage VRRM 50 100 150 200 300 400 600 800 1000 V Maximum RMS Voltage VRMS 35 70 105 140 210 280 420 560 700 V Maximum DC Blocking Voltage VDC 50 100 150 200 300 400 600 800 1000 V Maximum Average Forward Current 0.375"(9.5mm) Lead Length Ta = 55 °C Maximum Peak Forward Surge Current, 8.3ms Single half sine wave Superimposed on rated load (JEDEC Method) Maximum Peak Forward Voltage at IF = 2.0 A. VF 0.95 V Maximum DC Reverse Current at Rated DC Blocking Voltage Maximum Reverse Recovery Time ( Note 1 ) Trr 35 ns Typical Junction Capacitance ( Note 2 ) CJ 50 pf Junction Temperature Range TJ - 65 to + 150 °C Storage Temperature Range TSTG - 65 to + 150 °C Notes : ( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. ( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC Page 1 of 2 Rev. 04 : March 25, 2005 A 1.7 µA A75IFSM RATING 4.0 IR 5.0 20 IF(AV) 2.0 1.00 (25.4) MIN.0.161 (4.1) 0.154 (3.9) 0.284 (7.2) 0.268 (6.8) 0.034 (0.86) 0.028 (0.71) 1.00 (25.4) MIN. Dimensions in inches and ( millimeters )
RATING AND CHARACTERISTIC CURVES ( SF21 - SF29 ) FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF. 2. Rise time = 10 ns max., Source Impedance = 50 ohms. 3. All Resistors = Non-inductive Types. FIG.2 - DERATING CURVE FOR OUTPUT FIG.3 - MAXIMUM NON-REPETITIVE PEAK RECTIFIED CURRENT FORWARD SURGE CURRENT 0 25 50 75 100 125 150 175 1 2 4 6 10 20 40 60 100 AMBIENT TEMPERATURE, ( °C) NUMBER OF CYCLES AT 60Hz FIG.4 - TYPICAL FORWARD CHARACTERISTICS FIG.5 - TYPICAL REVERSE CHARACTERISTICS Page 2 of 2 Rev. 04 : March 25, 2005 SF21 - SF24 60Hz RESISTIVE OR INDUCTIVE LOAD 2.0 1.5 1.0 0.5 2.5 100 100 0.1 0.1 1.0 1 100 1400 20 40 60 120 PERCENT OF RATED REVERSE VOLTAGE, (%) PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD OUTPUT CURRENT, AMPERES FORWARD CURRENT, AMPERES REVERSE CURRENT, MICROAMPERES TJ = 25 °C TJ = 100 °C TJ = 25 °C Pulse Width = 300 µs 2% Duty Cycle 8.3 ms SINGLE HALF SINE WAVE Ta = 50 °C + 0.5 A - 0.25 A - 1.0 A Trr 1 cm SET TIME BASE FOR 15 ns/cm SF25 - SF27
50 Vdc
(approx) OSCILLOSCOPE ( NOTE 1 ) 1 Ω 50 Ω 10 Ω D.U.T. PULSE GENERATOR ( NOTE 2 ) FORWARD VOLTAGE, VOLTS SF28 - SF29 0.01