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| SRF2020 THRU SRF2060 Isolation 20.0 AMPS. Schottky Barrier Rectifiers Voltage Range 20 to 60 Volts Current 20.0 Amperes Features Low forward voltage drop High current capability High reliability High surge current capability ITO-220AB .1 34 (3 .4) D IA .11 3 ( 3 .0 )D I A .112 (2 .85 ) .10 0 ( 2 .5 5) . 2 72 ( 6 .9 ) . 2 48 ( 6 .3 ) Mechanical Data Cases: ITO-220AB molded plastic Epoxy: UL 94V-O rate flame retardant Terminals: Lead solderable per MIL-STD-750, Method 2026 guaranteed Polarity: As marked High temperature soldering guaranteed: 260OC/10 seconds .25",(6.35mm) from case. Weight: 2.24 grams Mounting torque: 5 in - 1bs. max. . 6 06 (1 5. 5) . 5 83 (1 4. 8) . 11 0 (2 .8 ) .09 8 ( 2 . 5 ) . 5 43 (1 3. 8) . 5 12 (1 3. 2) PIN 1 PIN 3 PIN 2 Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol SRF SRF Type Number 2020 2030 Maximum Recurrent Peak Reverse Voltage VRRM 20 30 Maximum RMS Voltage VRMS 14 21 Maximum DC Blocking Voltage VDC 20 30 Maximum Average Forward Rectified Current See Fig. 1 Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 10.0A Maximum D.C. Reverse Current @ Tc=25 at Rated DC Blocking Voltage @ Tc=100 Typical Thermal Resistance (Note 1) Typical Junction Capacitance (Note 2) Operating Junction Temperature Range Storage Temperature Range SRF 2040 SRF 2050 SRF 2060 Units V V V A A 40 28 40 20.0 250 50 35 50 60 42 60 I(AV) IFSM VF IR RJC Cj TJ TSTG 0.55 1.0 50 1.5 0.70 V mA mA /W pF 440 300 -65 to +125 -65 to +150 -65 to +150 Notes: 1. Thermal Resistance from Junction to Case Per Leg, with Heatsink size (4"x6"x0.25") Al-Plate. 2. Measured at 1MHz and Applied Reverse Voltage of 4.0V D.C. - 182 - RATINGS AND CHARACTERISTIC CURVES (SRF2020 THRU SRF2060) FIG.1- FORWARD CURRENT DERATING CURVE 20.0 300 FIG.2- MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT PER LEG 8.3ms SINGLE HALF SINE WAVE PER LEG. (JEDGE METHOD) Tj=Tj max. AVERAGE FORWARD CURRENT. (A) PEAK FORWARD SURGE CURRENT. (A) 150 16.0 250 200 SRF 202 SRF 12.0 205 0-60 150 100 50 0 0-4 8.0 0 4.0 0 0 50 100 o 1 2 5 10 20 50 100 CASE TEMPERATURE. ( C) NUMBER OF CYCLES AT 60Hz 10 FIG.3- TYPICAL REVERSE CHARACTERISTICS PER LEG 100 FIG.4- TYPICAL FORWARD CHARACTERISTICS PER LEG INSTANTANEOUS REVERSE CURRENT. (mA) 1.0 INSTANTANEOUS FORWARD CURRENT. (A) Tj=100 0C SR F2 02 10 0- 20 40 1.0 .01 2 Tj= 5C 0 SR F2 05 .10 Tj= 75 0- 0 C 20 60 Tj=25 C PULSE WIDTH-300 S 1% DUTY CYCLE .001 0 20 40 60 80 100 120 140 0.1 .2 .3 .4 .5 .6 .7 .8 .9 0 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) INSTANTANEOUS FORWARD VOLTAGE. (V) FIG.5- TYPICAL JUNCTION CAPACITANCE PER LEG 4000 JUNCTION CAPACITANCE.(pF) 2000 Tj=25 0C f=1.0MHz Vsig=50mVp-p 1000 800 600 400 SRF2050-2060 200 SRF2020-2040 100 0.1 0.4 1.0 4 10 40 80100 REVERSE VOLTAGE. (V) - 183 - |
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