SF21 TAYCHIPST | Alldatasheet
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Technical content
Features
! Diffused Junction ! Low Forward Voltage Drop ! High Reliability ! High Surge Current Capability ! Terminals: Plated Leads Solderable per MIL-STD-202, Method 208 ! Polarity: Cathode Band ! Weight: 0.40 grams (approx.) ! Mounting Position: Any ! Marking: Type Number C a s e : M o l d e d P l a s t i c H i g h C u r r e n t C a p a b i l i t y M e c h a n i c a l D a t a MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. TYPE NUMBER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375"(9.5mm) Lead Length at Ta=55 C Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 2.0A Maximum DC Reverse Current Ta=25 C at Rated DC Blocking Voltage Ta=100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) 2.0 5.0 -65 +150 A A V mA mA nS pF NOTES: 1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1MHz and applied reverse voltage of 4.0V D.C. Operating and Storage Temperature Range TJ, TSTG C SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 UNITS 0.95 1.25 1.50
E-mail: sales@taychipst.com Web Site: www.taychipst.com 50V-600V 2.0A 2 of 2 SF21 THRU SF28 0.5 1.0 1.5 2.0 2.5 25 50 75 100 125 150 175 200 I , AVERAGE FWD RECTIFIED CURRENT (A) (AV) T , AMBIENT TEMPERATURE ( C) Fig. 1 Forward Current Derating Curve A Single phase half-wave
60 Hz resistive or inductive load
0.01 1.0 2.0 I , INSTANTANEOUS FORWARD CURRENT (A) F V , INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics F T = 25 C j Pulse width = 300 sm SF21- SF24 SF27 SF25 - SF26 I , PEAK FORWARD SURGE CURRENT (A) FSM 1 10 100 NUMBER OF CYCLES AT 60Hz Fig. 3 Peak Forward Surge Current 100 1 10 100 C , CAPACITANCE (pF) j V , REVERSE VOLTAGE (V) Fig. 4 Typical Junction Capacitance R T = 25 C f = 1.0MHz j ° SF21 - SF24 SF25 - SF27 FIG.5- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC FIG.6-TYPICAL FORWARD CURRENT AVERAGE FORWARD CURRENT,(A) 0.4 0.8 1.2 1.6 2.0 2.4 (+) (+) 25Vdc (approx.) ( ) ( ) NONINDUCTIVE NONINDUCTIVE W W PULSE GENERATOR (NOTE 2) OSCILLISCOPE (NOTE 1) NON- INDUCTIVE W NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF. 2. Rise Time= 10ns max., Source Impedance= 50 ohms. +0.5A -0.25A -1.0A 1cm SET TIME BASE FOR 50 / 10ns / cm trr D.U.T. Single Phase Half Wave 60Hz Resistive Or Inductive Load 0.375"(9.5mm) Lead Length DERATING CURVE AMBIENT TEMPERATURE,( C) 0 25 50 75 100 125 150 175