smd zener diode zener v oltage: 20 v olts dc power: 1 w atts rohs device page 1 rev :a CZRMF4747A-HF qw -jz012 features - glass passivated chip. - built-in strain relief. - low inductance. p ar am et er s ym bo l v al ue u ni t maximum rating (at t a =25c unless otherwise specified) w 1 p d 17 0 thermal resistance r ja k/w ju nc tio n te m pe ra tu re ra ng e -5 5 to + 17 5 t j c st or ag e te m pe ra tu re ra ng e -5 5 to + 17 5 t stg dc p ow er d iss ipa tio n no te s: 1 .t l = l ea d te m pe ra tu re a t 3 /8 (9 .5 m m ) f ro m b od y . - high peak reverse power dissipation. 1. 2 forward voltage v f v - low leakage current. electrical characteristics (at t a =25c unless otherwise specified) v z @i zt ma CZRMF4747A-HF 12.5 part number nominal zener no te s: 1 . th e ty pe n um be r l ist ed h av e a st an da rd to ler an ce o n th e no m ina l z en er v olt ag e of 5 % c circuit diagram comchip t echnology co., l td. company reserves the right to improve product design , functions and reliability without notice. 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 ) s o d - 1 2 3 f l / s m f 0.051(1.30) 0.037(0.95) 0.033(0.85) 0.010(0.25) 0.138(3.50) 0.075(1.90) 0.063(1.60) 0.1 14(2.90) 0.102(2.60) 0.047(1.20) 0.028(0.70) 0.002(0.05) 0.014(0.35) 0.154(3.90) halogen free mechanical data - case: molded plastic. - epoxy: ul 94v -0 rate flame retardant. - lead: solderable per method 2026. mil-std-750, - polarity: color band denotes cathode end except bipolar . - mounting position: any . - w eight: 0.062 grams (approx.). conditions t l =5 0 c (n ot e. 1) i f =200ma junction to ambient air (note.2) v oltage i zt v 20 maximum zener impedance z @i zt zt z zk @i zk i zk maximum reverse leakage current i r @v r v a maximum dc zener current i zm ma maximum surge current i rm mapk device marking code ? ? ma 22 750 0.25 0.10 15.2 45 225 47a 2. th e re ve rs e su rg e cu rre nt is a n on -re pe tit ive , 8 .3 m s pu lse w idt h sq ua re w av e or e qu iva len t s ine w av e su pe rim po se d on i zt p er j ed ec m et ho d. 2 .v ali d pr ov ide d th at le ad s ar e ke pt a t a m bie nt te m pe ra tu re a t a d ist an ce o f 1 0m m fr om c as e. - for use in stabilizing and clipping with high power rating.
smd zener diode page 2 rev :a qw -jz012 comchip t echnology co., l td. company reserves the right to improve product design , functions and reliability without notice. fig.4 - maximum surge power lead t emperature, t l (?c) 0 fig.1 - power derating curve t emperature 0 m a x . p o w e r d i s s i p a t i o n , p d ( w ) 0.2 0.6 1.4 25 75 100 175 0.4 1.2 50 125 150 1.0 0.8 t e m p e r a t u r e c o e f f i c i e n t , v z ( m v / c ) zener v oltage, v z (v) 100 10 1 100 10 range lead length to heatsink, l (inches) 0 0 25 50 75 150 0.3 0.2 0.4 0.7 0.6 0.1 0.5 175 100 125 j u n c t i o n t o l e a d t h e r m a l r e s i s t a n c e , j l ( c / w ) 0.8 0.9 1 fig.3 - t ypical thermal resistance v .s. lead length pulse width, pw (s) 1 1 10 100 1000 0.1 0.01 10 100 p e a k s u r g e p o w e r , p p k ( w ) fig.2 - t emperature coef ficients v .s. zener v oltage 5% duty cycle 10% duty cycle 20% duty cycle 1 1v -91v non-repetitive rectangular w aveform tj=25c prior to initial pulse ra ting and characteristic cur ves (CZRMF4747A-HF)
page 3 comchip t echnology co., l td. smd zener diode qw -jz012 rev :a company reserves the right to improve product design , functions and reliability without notice. reel t aping specification i n d e x h o l e o 1 2 0 d e f b w a p p 0 p 1 d 1 d 2 d w 1 c b c d d d 2 d 1 s o d - 1 2 3 f l / s m f s y m b o l a ( m m ) ( i n c h ) 1 . 9 6 9 m i n . 4 . 0 0 0 . 1 0 1 . 5 5 0 . 0 5 5 0 . 0 0 m i n . 1 3 . 0 0 0 . 2 0 4 . 0 0 0 . 1 0 2 . 0 0 0 . 0 5 1 7 8 . 0 0 1 . 0 0 7 . 0 0 8 0 . 0 3 9 0 . 5 1 2 0 . 0 0 8 s y m b o l ( m m ) ( i n c h ) 0 . 1 5 7 0 . 0 0 4 0 . 1 5 7 0 . 0 0 4 0 . 0 7 9 0 . 0 0 2 e f p p 0 p 1 w w 1 1 . 7 5 0 . 1 0 0 . 0 6 9 0 . 0 0 4 3 . 5 0 0 . 1 0 0 . 1 3 8 0 . 0 0 4 s o d - 1 2 3 f l / s m f s e e n o t e 1 1 1 . 4 0 m a x . 0 . 4 4 9 m a x . 0 . 0 6 1 0 . 0 0 2 0 . 3 1 5 0 . 0 0 4 8 . 0 0 0 . 1 0 t railer device leader 400mm (min) 160mm (min) ....... ....... ....... ....... ....... ....... ....... ....... end start direction of feed no te: 1 . a, b, an d c th e c lea ran ce be tw ee n t he co mp on en t a nd th e c av ity m us t b e w ith in 0.5 mm m ax . fo r 8 mm ta pe an d 1 2m m tap e, 1.0 mm m ax . fo r 1 6m m tap e a nd 24 mm ta pe .
page 4 rev :a qw -jz012 comchip t echnology co., l td. part number CZRMF4747A-HF marking code 47a marking code xxx smd zener diode company reserves the right to improve product design , functions and reliability without notice. sod-123fl/smf standard packaging c a s e t y p e 3 , 0 0 0 r e e l ( p c s ) reel size (inch) 7 r e e l p a c k suggested p ad layout size (inch) 0.1 14 (mm) 2.90 1.30 1.40 0.051 0.055 4.20 0.165 e 1.60 0.063 b c d a s o d - 1 2 3 f l / s m f d b c e a
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