fast recovery type features plastic package has underwrit ers laboratory flammability classificat ion 94v- o utiliz ing flame retardant epox y m olding compound. for surfac e mounted applications. ex ceeds environmental standar ds of mi l-s-19500 / 228 low leakage current . mechanical dat a case : mol ded plastic, jed ec do-214ab termi nals : solder plated, solderable per mil-st d-750, method 2026 pol arity : indicated by c athode band mounting p osition : any weight : 0.00585 ounce, 0.195 gram (v) (v) (v) (v) (ns) ( o c) ffm301 f31 50 35 50 ffm302 f32 100 70 100 ffm303 f33 200 140 200 FFM304 f34 400 280 400 ffm305 f35 600 420 600 250 ffm306 f36 800 560 800 ffm307 f37 1000 700 1000 symbols marking code 1.3 -55 to +150 operating temperature v rrm *1 v rms *2 v r *3 v f *4 t rr *5 500 150 maximum ratings (at t a =25 o c unless otherwise noted) parameter conditions symbol min. typ. max. unit forward rectified current ambient temperature = 55 o c i o 3.0 a forward surge current 8.3ms single half sine-wave superimposed on rate load (jedec methode) i fsm 100 a v r = v rrm t a = 25 o c 10.0 ua v r = v rrm t a = 100 o c 300 ua thermal resistance junction to ambient r q ja 50 o c / w diode junction capacitance f=1mhz and applied 4vdc reverse voltage c j 60 pf storage temperature t stg -55 +150 o c reverse current i r *1 repetitive peak reverse voltage *2 rms voltage *3 continuous reverse voltage *4 maximum forward voltage *5 reverse recovery time 0.276(7.0) 0.260(6.6) 0.012(0.3) typ. 0.189(4.8) 0.173(4.4) 0.244(6.2) 0.228(5.8) 0.087(2.2) 0.071(1.8) 0.040 (1.0) typ. 0.040(1.0) typ. dimensions in inches and (millimeters) smc 0.152(3.8) 0.144(3.6) 0.032(0.8) typ. f31-f37 http:// www.wej.cn e-mail:wej@yongerjia.com wej electronic co. r o hs wej electronic co.,ltd
0.1 1.0 .01 50 rating and characteristic curves (ffm301 thru ffm307) fig.1-typical forward characteristics fig.2-typical forward current dera ting curve a v e r a g e f o r w a r d c u r r e n t , ( a ) fig.5-typical junction capacit ance reverse voltage,(v) j u n c t i o n c a p a c i t a n c e , ( p f ) i n s t a n t a n e o u s f o r w a r d c u r r e n t , ( a ) forward volt age,(v) pulse width 300us 1% duty cycle 0.6 1.2 1.8 2.4 3.0 3.6 70 60 50 40 30 20 10 0 (+) (+) 25vdc (approx.) ( ) ( ) pulse generator (note 2) oscilliscope (note 1) 1 non- inductive w notes: 1. rise time= 7ns max., input impedance= 1 megohm.22pf. 2. rise time= 10ns max., source impedance= 50 ohms. +0.5a 0 -0.25a -1.0a | | | | | | | | 1cm set time base for 50 / 10ns / cm trr .01 .05 .1 .5 1 5 10 50 100 d.u.t. .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 3.0 ambient temperature ( c) fig.3- test circuit diagram and reverse recovery time characteristics 10 noninductive 50 noninductive w w tj=25 c fig.4-maximum non-repetitive forward surge current p e a k f o r w a a r d s u r g e c u r r e n t , ( a ) 20 0 40 60 80 100 number of cycles at 60hz 1 10 5 50 100 tj=25 c 8.3ms single half sine wave jedec method single phase half wave 60hz resistive or inductive load 0 20 40 60 80 100 120 140 160 180 200 0 10 f31-f37 http:// www.wej.cn e-mail:wej@yongerjia.com wej electronic co. r o hs wej electronic co.,ltd
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