s m a l l s i g n a l s w i t c h i n g d i o d e s reverse v oltage: 75 v olts power dissipation: 400 mw rohs device page 1 rev :a features -design for mounting on small surface. -high speed switching. -high mounting capability , strong surge withstand, high reliability . -also available in other standard case: cdsn4448 - 1206 size cdsf4448 - 1005 size cdsu4448 - 0603 size mechanical data -case: sod-123, molded plastic. -t erminals: solderable per mil-std-750, method 2026. -polarity: indicated by cathode band. -approx. weight: 0.01 grams CDSW4448-G maximum ratings and electrical characteristics d i m e n s i o n s i n i n c h e s a n d ( m i l l i m e t e r ) qw -b0013 comchip t echnology co., l td. repetitive peak reverse voltage reverse voltage forward current peak surge forward current power dissipation maximum forward voltage maximum reverse current maximum reverse recovery time t ypical diode capacitance maximum junction temperature storage temperature units symbol parameter v rrm v r i fm i fsm p d v f i r t rr c j t j t stg conditions t=1.0 s @i f =5ma @i f =10ma @i f =100ma @v r =75v @v r =25v i f =10ma, r l =100 v r =0v , f=1.0mhz @i f =150ma 75 75 500 4 400 0.72 0.855 1 1.25 2.5 0.025 4 4 125 -55 to +125 v v ma a mw v a ns pf o c o c v alue sod-123 0.028(0.70) 0.019(0.50) 0.1 10(2.80) 0.098(2.50) 0.071(1.80) 0.055(1.40) 0.154(3.90) 0.141(3.60) 0.053(1.35) 0.037(0.95) 0.008(0.20) max. 0.016(0.40) min. 0.005(0.12) max. (at t a=25c unless otherwise noted)
qw -b0013 ra ting and characteristic cur ves (CDSW4448-G) forward v oltage, (v) 1.0 0.8 0.4 0 fig.1 - forward characteristics 0.1 1 10 100 f r a d u r e n t , m a ) o w r c r ( reverse v oltage, (v) 0 fig.2 reverse characteristics - 0.1n e e s e c r r e n t , ( a ) r v r u 1n 10n 100n 10 40 reverse v oltage, (v) 0 fig.3 capacitance between t erminals - characteristics 0 c a p a c t a c b e t e e n t e r m i n l s , ( p ) i n e w a f 2 4 3 6 ambient t emperature, (c) fig.4 power derating curve - 0 p o w e r d i s s i p a t i o n , ( m w ) 300 600 comchip t echnology co., l td. page 2 rev :a 60 100 0 100 175 20 80 200 1 25 50 75 150 125 400 1 4 2 s m a l l s i g n a l s w i t c h i n g d i o d e s 100 500 mounted on glass epoxy pcbs 0.2 0.6 o t a =85 c o t a =-30 c o t a =25 c o t a =50 c o t a =0 c o t a =125 c o t a =-30 c o t a =25 c o t a =75 c o t a =0 c o t j =25 c f=1mhz 5 1 3
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