preliminary solid state devices, inc. 14701 firestone blvd * la mirada, ca 90638 phone: (562) 404-4474 * fax: (562) 404-1773 ssdi@ssdi-power.com * www.ssdi-power.com designer?s data sheet part number / ordering information 1 / srm__ hf __ __ screening 2 / __ = not screened tx = tx level txv = txv s = s level package type __ = axial sms = surface mount square tab btr = button voltage 3 = 300 v 4 = 400 v srm3hf thru SRM4HF series 20 amp 300-400 volts 40 nsec hyper fast rectifier features: ? replaces do-4 and do-5 (1n5816,1n6306) ? high current/ voltage version of 1n5811 ? hyper fast recovery ? piv to 400 volts ? low reverse leakage current ? hermetically sealed void-free construction 3 / ? monolithic single chip construction ? high surge rating ? low thermal resistance ? available in surface mount versions ? equivalent to 1n6688-1n6689 ? tx, txv, and space level screening available maximum ratings symbol value units peak repetitive reverse voltage and dc blocking voltage srm3hf SRM4HF v rrm v rwm v r 300 400 volts average rectified forward current (resistive load, 60hz sine wave, ta=25 ? c) i o 20 amps peak surge current (8.3 ms pulse, half sine wave superimposed on io, allow junction to reach equilibrium between pulses, t a =25 o c) i fsm 475 amps operating and storage temperature t op & t stg -65 to +175 o c maximum thermal resistance (axial ? junction to lead, l=3/8?) (sms ? junction to end tab) (button ? junction to case) axial ( ) square tab (sms) button (btr) r jl r je r jc 3.0 2.5 1.0 o c/w notes: 1 / for ordering information, price, operating curves, and availability, contact factory. 2 / modified mil-prf-19500 screening flow ? consult factory. 3 / pind testing not required on void free devices per mil-prf-19500. axial sms button note: all specifications are subject to change without notification. scd's for these devices should be reviewed by ssdi prior to release. data sheet #: rh0165f doc
electrical characteristics symbol max unit instantaneous forward voltage drop (i f = 20adc, 500 sec pulse, t a = 25 o c) v f1 1.05 vdc instantaneous forward voltage drop (i f = 20adc, 300 sec pulse, t a = -65 o c) v f2 1.2 vdc reverse leakage current (rated v r , 300 sec pulse minimum, t a = 25 o c) i r1 100 a reverse leakage current (rated v r , 300 sec pulse minimum, t a = 100 o c) i r2 10 ma junction capacitance (v r =10 v dc , f = 1mhz, t a = 25 o c) c j 350 pf reverse recovery time (i f = 0.5a, i r = 1.0 a, i rr = 0.25a, t a = 25 o c) t rr 40 nsec case outlines: axial ( ) tolerances (unless specified) .xx .03? .xxx .010? square tab (sms) button (btr) solid state devices, inc. 14701 firestone blvd * la mirada, ca 90638 phone: (562) 404-4474 * fax: (562) 404-1773 ssdi@ssdi-power.com * www.ssdi-power.com srm3hf thru SRM4HF series note: all specifications are subject to change without notification. scd's for these devices should be reviewed by ssdi prior to release. data sheet #: rh0165f doc
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