15df4 ~ 15DF8 fast recovery diodes prv : 400 - 800 volts io : 1.3 amperes features : * high current capability * high surge current capability * high reliability * low reverse current * low forward voltage drop * fast switching for high efficiency * 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%. symbol 15df4 15df6 15DF8 unit maximum recurrent peak reverse voltage v rrm 400 600 800 v maximum rms voltage v rms 280 420 560 v maximum dc blocking voltage v dc 400 600 800 v maximum average forward current ta = 40 c i f(av) 1.3 a maximum peak forward surge current, 8.3ms single half sine wave i fsm 70 a maximum peak forward voltage at i f = 1.3 a v f 1.2 v maximum dc reverse current at rated dc blocking voltage i rm 10 m a maximum reverse recovery time ( note 1 ) trr 150 ns junction temperature range t j - 65 to + 150 c storage temperature range t stg - 65 to + 150 c note : (1) reverse recovery test conditions : i f = 0.5 a, i r = 1.0 a, irr = 0.25 a. page 1 of 2 rev. 02 : march 25, 2005 rating d2 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 ( 15df4 ~ 15DF8 ) 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 60100 ambient temperature, ( c) number of cycles at 60hz fig.4 - typical forward characteristics fig.5 - typical reverse characteristics 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 forward voltage, volts page 2 of 2 rev. 02 : march 25, 2005 1.2 0.9 0.6 0.3 1.5 20 10 60 0 75 0 45 30 15 80 1 140 0 20 40 60 percent of rated reverse voltage, (%) p e a k f o r w a r d s u r g e c u r r e n t , a m p e r e s a v e r a g e f o r w a r d o u t p u t c u r r e n t , a m p e r e s f o r w a r d c u r r e n t , a m p e r e s r e v e r s e c u r r e n t , m i c r o a m p e r e s t j = 25 c t j = 100 c t j = 25 c 8.3 ms single half sine wave ta = 40 c set time base for 50-100 ns/cm trr + 0.5 0 - - 1.0 1 oscilloscope ( note 1 ) 1 w 50 w 10 w d.u.t. 50 vdc (approx.) pulse generator ( note 2 )
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