ds25003 rev. d-3 1 of 2 her301-her305 features mechanical data case: molded plastic terminals: plated axial leads, solderable per mil-std-202, method 208 polarity: color band denotes cathode approx. weight: 1.2 grams ratings at 25 c ambient temperature unless otherwise specified. single phase, half wave, 60hz, resistive or inductive load. maximum ratings and electrical characteristics characteristic symbol her301 her302 HER303 her304 her305 unit maximum recurrent peak reverse voltage v rrm 50 100 200 300 400 v maximum rms voltage v rms 35 70 140 210 280 v maximum dc blocking voltage v dc 50 100 200 300 400 v maximum average forward rectified current 9.5mm lead length @ t a =50c i (av) 3.0 a peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) i fm 125 a maximum instantaneous forward voltage at 3.0 a dc v f 1.1 v maximum dc reverse current at rated dc blocking voltage @ t a =25c i r 10 a maximum full load reverse current full cycle average 9.5mm lead length @ t c =55c i r 150 a maximum reverse recovery time (note 1) t rr 50 ns typical junction capacitance (note 2) c j 70 pf operating and storage temperature range t j ,t stg -65 to +150 c notes: 1. reverse recovery test conditions: i f =0.5 a, i r =1.0 a, i rr =0.25a 2. measured at 1 mhz and applied reverse voltage of 4.0 volts. low power loss, high efficiency low leakage low forward voltage drop high current capability high speed switching high surge current rating high reliability plastic material - ul flammability classification 94v-0 a a b c d her301 - her305 3.0a high efficiency rectifier do-201ad dim min max a 25.4 b 9.5 c 1.2 1.3 d 4.8 5.2 all dimensions in mm power semiconductor
ds25003 rev. d-3 2 of 2 her301-her305 0 100 175 1 10 100 1000 i , peak for ward surge current (amperes) f number of cycles at 60 hz fig. 4, max. non-repetitive peak forward surge current 0 0 25 50 75 100 125 150 175 i , average for ward current (amperes) av t , ambient temperature (c) fig. 1, typical forward current derating curve a single phase half wave 60hz resistive or inductive load 0.5 1.0 1.5 2.0 2.5 3.0 0 25 50 75 100 125 150 175 0.1 1.0 10 100 1000 c , junction cap acitance (pf) j v , reverse voltage (volts) fig. 5, typical junction capacitance r 0.01 0.1 1.0 10 100 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 i , instantaneous for ward current (a) f v , instantaneous fwd voltage (v) fig. 3, typ. instantaneous forward characteristics f t = 25c j 0.01 0.1 1.0 10 100 1000 0 20 40 60 80 100 120 140 i , instantaneous for ward current (a) f percent of rated peak reverse voltage fig. 2, typical reverse characteristics t = 150c j t = 100c j t = 25c j
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