her501-lfr thru her508-lfr page: 1 frontier electronics corp. 667 e. cochran street, simi valley, ca 93065 tel: (805) 522-9998 fax: (805) 522-9989 e-mail: frontiersales@frontierusa.com web: http://www.frontierusa.com 5a ultra fast recovery rectifier her501-lfr thru her508-lfr features z plastic package has underwriters laboratory flammability classification 94v-0 z ultra fast recovery ti mes for high efficiency z low forward voltage, high current capability z low leakage z high surge capability z high temperature soldering guaranteed: 260 c 0.375? (9.5mm) lead lengths for 10 seconds at 5 lbs. (2.3 kg) tension. z rohs mechanical data z case: jedec do-201ad, molded plastic, dimensions in inches and (millimeters) z terminals: axial leads solderable per mil-std-202, method 208 z polarity: color band denotes cathode end z mounting: position: any z weight: 1.2 gram maximum ratings and electrical characteristics ratings 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% ratings symbol her501 -lfr her502 -lfr her503 -lfr her504 -lfr her505 -lfr her506 -lfr her507 -lfr her508 -lfr units maximum recurrent peak reverse voltage v rrm 50 100 200 300 400 600 800 1000 v maximum rms voltage v rms 35 70 140 210 280 420 560 700 v maximum dc blocking voltage v dc 50 100 200 300 400 600 800 1000 v maximum average forward rectified current 0.375? (9.5mm) lead length at ta=50c i o 5.0 a peak forward surge current 8.3ms single half sine-wave superimposed on rated load i fsm 200 a typical junction capacitance (note 1) c j 70 50 pf typical thermal resistance (note 2) r ja 15 /w storage temperature range t stg -55 to + 150 operating temperature range t op -55 to + 150 electrical characteristics (at ta =25 c unless otherwise noted) characteristics symbol her501 -lfr her502 -lfr her503 -lfr her504 -lfr her505 -lfr her506 -lfr her507 -lfr her508 -lfr units maximum forward voltage at io dc v f 1.3 1.85 v maximum reverse current at ta=25 i r 10 a maximum reverse current at ta=100 i r 100 a maximum reverse recovery time (note 3) t rr 50 75 ns note : 1. measured at 1 mhz and applied reverse voltage 0f 4.0 volts 2. both leads attached to heat sink 63.5 63.5 1t(mm) copper plate at lead length 5mm 3. reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a .375(9.5) .335(8.5) 1.0(25.4) min .220(5.6) .197(5.0) 1.0(25.4) min .052(1.3) .048(1.2)
her501-lfr thru her508-lfr page: 2 fig. 1-test circuit diagram and reve rse recovery time characteristic +0.5a 0 -0.25a -1.0a trr 1cm set time base for10/20 ns/cm fig. 3-typical reverse characteristics 1000 100 10 1.0 0.1 .01 instantaneous reverse current (ua) 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage (%) fig. 5-maximum non-repetitive forward surge current 300 200 100 0 peak forward surge current (a) 8.3 ms single half sine wave (jedec method) 1 10 100 1000 number of cycles at 60h z ratings and characteristic curve her501-lfr thru her508-lfr average forward current (a) 6.0 5.0 4.0 3.0 2.0 1.0 0 25 50 75 100 125 150 175 ambient temperature ( o c) fig. 2-typical forward current derating curve single phase half wave 60 hz resistive or inductive load fig. 4-typical instantaneous forward characteristics 100.0 10.0 1.0 .1 .01 instantaneous forward current (a) .4 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 instantaneous forward voltage (v) her501-lf~503- her504-lf~505-lf her506-lf~508-lf fig. 6-typical junction capacitance 200 100 60 40 20 10 6 4 2 1 junction capacitance (pf) her501-lf~505-lf t j =25 o c 1 .2 .4 1.0 2 4 10 20 40 100 instantaneous forward voltage (v) her506-lf~508-lf pulse generator ( note 2 ) (+) 25 v dc (approx) (-) d.u.t. 1 non inductive oscilloscope ( note 1 ) 50 no inductive 100 no inductive (-) (+) note: 1. rise time=7ns max. input impedance=1 mohms 22pf 2. rise time =10ns max. source impedance=50 ohms t j =25 o c t j =100 o c t j =1 50 o c
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