features electrical data identical with the devices 1n4148 and 1n4448 respectively applications extreme fast switches absolute maximum ratings t j = 25 c parameter test conditions type symbol value unit repetitive peak reverse voltage v rrm 100 v reverse voltage v r 75 v peak forward surge current t p =1 s i fsm 2 a repetitive peak forward current i frm 500 ma forward current i f 300 ma average forward current v r =0 i fav 150 ma power dissipation p v 500 mw operating junction temperature t j -65~ 175 c storage temperature range t stg -65~175 c maximum thermal resistance t j = 25 c parameter test conditions symbol value unit junction ambient on pc board 50mmx50mmx1.6mm r thja 500 k/w pb free product MM4448 surface mount small signal diode
characteristics t j = 25 c parameter test conditions type symbol min typ max unit forward voltage i f =5ma v f 0.62 0.72 v g i f = v f 0.86 1 v i f =100ma v f 0.93 1 v reverse current v r =20v i r 25 na v r =20v, t j =150 c i r 50 a v r =75v i r 5 a breakdown voltage i r =100 a, t p /t=0.01, t p =0.3ms v (br) 100 v diode capacitance v r =0, f=1mhz, v hf =50mv c d 4 pf rectification efficiency v hf =2v, f=100mhz r 45 % reverse recovery time i f =i r =10ma, i r =1ma t rr 8 ns y i f =10ma, v r =6v, i r =0.1xi r , r l =100 t rr 4 ns typical characteristics (t j = 25 c unless otherwise specified) 0 0.4 0.8 1.2 1.6 0.1 1 10 100 1000 i forward current ( ma ) f v f forward voltage ( v ) 2.0 94 9096 scattering limit t j =25 ? ????? ? ??????? ?????? ?? ??????? ??????? ? ? ?? ??M ? ? ? ? ? ? ??????? ?????? ? ? ? ? ? ? ??????? ??????? ? ? ? ?? ? ?? ?????????? ???? ? ? ? ? ????? ? ??????? ?????? ?? ??????? ???????
110 1 10 100 1000 i reverse current ( na ) r v r reverse voltage ( v ) 100 94 9098 scattering limit t j =25 ? ????? ? ?????? ?????? ?? ?????? ??????? ? ? ? ? ?? ?? ?? ?? ? ????? ?????????? ? ? ? ? ? ?????? ??????? ? ? ? ? ? ?? ?? ? ? ??? ? ? ? ? ????? ????? ?????????? ?? ?????? ??????? ????????? ?? ?
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