SF21 MOSPEC | Alldatasheet

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Technical content

Switchmode Power Rectifiers ULTRA FAST Designed for use in switching power supplies. inverters and RECTIFIERS as free wheeling diodes. These state-of-the-art devices have the following features: 2.0 AMPERES 50 -- 400 VOLTS * High Surge Capacity * Low Power Loss, High efficiency * Glass Passivated chip junctions * 150°C Operating Junction Temperature * Low Stored Charge Majority Carrier Conduction * Low Forward Voltage , High Current Capability * Utrafast 35 & 50 Nanosecond Recovery Time * Plastic Material used Carries Underwriters Laboratory Flammability Classification 94V-O “mi MAXIMUM RATINGS Toa Do Characteristic ‘symvel aa sal Peak Repetitive Reverse Voltage Verm i Working Peak Reverse Voltage Vewm 50 200 400| V A 8 DC Blocking Voltage Ve of |] be RMS Reverse Voltage 70 | 105 | 140 c Non-Repetitive Peak Surge Current A p+ = ( Surge applied at rate load conditions 1 halfware,single phase,60Hz ) Operating and Storage Junction Ty Tog °c Temperature Range - 65 to + 150 A 2.00} 2.70 B | 2540) -—~

ELECTRICAL CHARACTERISTICS

c 410| 5.20 Characteristic symbol] SF EXEAEIEIEIES o | amo Maximum Instantaneous Forward Ve v Voltage Maximum Instantaneous Reverse uA CASE--- Current Transfer molded (Rated DC Voltage, T, = 25 °C) 5.0 plastic ( Rated DC Voltage, T, = 125 °C) 50 Reverse Recovery Time T,, POLARITY--— (Ip = 0.5A, lp =1.0,, |, =0.25 A) 35 Cathode indicated Typical Junction Capacitance Cc, pF Polarity band ( Reverse Voltage of 4 volts & f=1 MHz) 35

FIG-1 TYPICAL FORWARD CHARACTERISTICS FIG-3 FORWARD CURRENT DERATING CURVE ———— 302 a eee ee i rT ds ee 2 ee A Ss | | & en | 3g if p { ae oe a NX a a a Boy |

3 He si 28 tt S

2 ee epee 2 ff} tN ae ees a | 5 a a 3 | | 3 — fA rr ze 'o Fa 50 i 100 125 150 2 ee ee zo LI7ZT 1 ttt tt | eno renremarine B "oa 06 18 1 12 14 FIG-4 TYPICAL JUNCTION CAPACITANCE = 200 FORWARD NOKTAGE (ls) =< LE ET 2 —— a ees S&S See A

8 Sse rrr

FIG-2 TYPICAL REVERSE CHARACTERISTICS Fy a OS 10 pe a |_| aS es es : aa Fa | " 5 000 E me | e 8 jf] Jos || REVERSE VOLTAGE (Vols)

6 SSS SSS FIG-5 PEAK FORWARD SURGE CURRENT

g == z° rt} | I 2 wl wtf t+ 1 _] Pam i Ht : g 0 20 40 60 80 100120140 & __ a ria 2 3 — Natt PERCENT OF PEAK REVERSE VOLTAGE(%) 2 map tt J HL gy $F2526 = iti ¥ ol iiiiih LLL Ean io 0 NUMBER OF CYCLES AT 60H son NI 100 NI — 4058 — on ' sy Seat we Atti |_| ) Test NV | | = 50vde Pulse o\\ a = Approx Generator | | | =) (Note 2) ozsa| |, { — P® oneit | NIP Spite) | - Tt 7 an Rise Time= 7 ns max. nputimpedance =1 M 12,22 pF vol AA 2. Rise Time = 10 ns max. Input impedance = 50.0 Sette base fr 10720 asl Fig-6 Reverse Recovery Time Characteristic and Test Circuit Diagram