features low cost diffused junction low leakage low forward voltage drop m e c h an i cal d a t a case:jedec do--27,molded plastic mil-std-202,method 208 polarity: color band denotes cathode weight: 0.041ounces,1.15 grams mounting position: any ratings at 25 ambient temperature unless otherwise specified. single phase,half wave,50hz,resistive or inductive load. for capacitive load,derate by 20%. units maximum recurrent peak reverse voltage v rrm v ma x imu m rms v o ltag e v rms v ma x imu m dc b loc king v o ltag e v dc v maximum average forw ard rectified current 9.5mm lead length, @t a =75 peak forw ard surge current 8.3ms single half -sine-w ave superimposed on rated load @t j =125 ma x imu m in s ta nt an eo us f o r w ar d v o lt ag e @ i f =3a v f v maximum reverse current @t a =25 at rated dc blocking voltage @t a =100 ma x imu m r e v e r s e r e c ov er y time ( note 1) t rr ns typical junction capacitance (note2) c j pf typical thermal resistance (note3) r ja /w operating junction temperature range t j storage temperature range t stg 2. measured at 1.0mh z and applied rev erse v oltage of 4.0v dc. i f(av) 3. thermal resistance f rom junction to ambient. a i fsm i r a a note: 1. measured with i f =0.5a, i r =1a, i rr =0.25a. 210 400 280 1.25 1.5 125.0 300 400 easily cleaned with alcohol,isopropanol and s im ilar s olvents terminals: axial lead ,solderable per d o - 2 7 300 maximum ratings and electrical characteristics 31df3 31DF4 31df3 --- 31DF4 high current capability super fast rect ifiers voltage range: 300 --- 400 v current: 1.5 a - 55 ----- + 150 - 55 ----- + 150 5.0 50.0 30 90 34 dimensions in millimeters www.diode.kr diode semiconductor korea
50 0 2 5 7 5 125 1 0 0 1 5 0 single phase half wave 60hz resistive or inductive load 0.375"(9.5mm)lead length 2 . 0 1.5 1.0 0.5 0 0 . 0 1 0 . 1 1 10 0 . 6 0 . 8 1 . 0 1 . 2 1 . 4 1 . 6 1 . 8 t j =25 pulse width=300 www.diode.kr diode semiconductor korea
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