dual common anode zener tvs weitron http://www .weitron.com.tw small signal zener diodes 300m w a tts 3-26 v ol ts mmbz5v6a series *a llo w s e ither t w o s epar a t e u nidir ec tional c onfigua tions or a s ingle b idir ec tional c onfigua tions . *l o w l eak age c ur r en t. *24-40 w a tts p eak p o w er p r ot ec tion. *ex c ellen t c lamping c apabilit y . *esd r a ting of c lass n(e x c eeding 16kv )p er the human b o d y m o del. *t r ansien t v oltage suppr essors enc apsula t ed in a so t-23 p ack age . mechanical data: *c ase: m olded e p o x y *m ar k ing: m ar k ing c o de *m aximum c ase t emp er a tur e f or s older ing p ur p ose: 260 c f or 10 sec . *w eigh t: 0.008gr ams(appr o x.) featur es: sot -23 outline dimensions u nit:mm dim a b c d e g h j k l m m i n 0 . 3 5 1 . 1 9 2 . 1 0 0 . 8 5 0 . 4 6 1 . 7 0 2 . 7 0 0 . 0 1 0 . 8 9 0 . 3 0 0 . 0 7 6 max 0.51 1.40 3.00 1.05 1.00 2.10 3.10 0.13 1.10 0.61 0.25 a b d e g m l h j t op view k c sot -23 1 2 3
weitron http://www .weitron.com.tw electrical characteristics a characteristics p eak p o w er d issipa tion @ 1.0 ms @ t 25 c mmbz5v6a thr u mmbz10v a mmbz12v a thr u mmbz33v a < t otal p o w er d issipa tion on fr-5 b oar d @ t =25 c d er a t e ab o v e 25 c t her mal r esistanc e j unc tion-t o-a mbien t j unc tion and s t or age t emp er a tur e r ange l ead s older t emp er a tur e-m aximum(10 s ec ond d ur a tion) symbol v alue p pk t l p d t ,t j st g q r 24 40 -55 t o +150 260 w mw mw/ c c/w c c no te: 1. n on-r ep etitiv e c ur r en t p ulse , p er fig 5 and d er a t ed 2. fr-5=1.0 0.75 0.62 in. 3. a lumina=0.4 0.3 0.024m, 99.5% alumina _ _ _ _ _ _ _ _ ab o v e t =25 c p er fig 6. mw mw/ c c/w maximum ratings (t =25 c unless otherwise noted) (2) (1) l a a a t otal p o w er d issipa tion on a lumina substr a t e @ t =25 c d er a t e ab o v e 25 c t her mal r esistanc e j unc tion-t o-a mbien t (3) a 225 556 1.8 300 417 2.4 mmbz5v6a series _ ja p d q r ja uni-directional tvs i p p i f v i i r i t v r w m v c v b r v f unidirectional (c ir cuit tied t o p ins 1 and 3 or 2 and 3) symbol parameter i pp m aximum r e v erse p eak p ulse c ur r en t ( t =25 c unless other wise not ed) v c c lamping v oltage @ i pp v r w m w or k ing p eak r e v erse v otlage i r m aximum r e v erse l eak age c ur r en t @ v r w m v br b r eakdo wn v oltage @ i t i q t t est c ur r en t v br m aximum t emp er a tur e c o ef ficien t of v br i f f or w ar d c ur r en t v f f or w ar d v oltage @ i f z zt m aximum z ener imp edanc e @ i zt i zk r e v erse c ur r en t z zk m aximum z ener imp edanc e @ i zk device marking item marking eqivalent cir cuit diagram mmbz5v6a s er ies x x=s p ecific d e vic e c o de (s ee t able on p age 3) 1 2 3
weitron http://www .weitron.com.tw mmbz5v6a series electrical characteristics 24 watts 40 watts (t a = 25 c unless otherwise noted) unidirectional (circuit tied to pins 1 and 3 or pins 2 and 3) (v f = 0.9 v max @ i f = 10 ma) (v f = 0.9 v max @ i f = 10 ma) breakdown voltage max zener impedance v c @ i p p v rwm rwm i r @ v v br ( 4 ) ( 4 ) ( 5 ) ( 6 ) ( 6 ) ( v ) @ i t z zt @ i zt z zk @ i zk v c i pp v br device device marking volts ua min nom max ma ma w w v a mv/ c mmbz5v6a 5a6 3.0 5.0 5.32 5.6 5.88 20 11 1600 0.25 8.0 3.0 1.26 mmbz6v2a 6a2 3.0 0.5 5.89 6.2 6.51 1.0 - - - 8.7 2.76 2.80 mmbz6v8a 6a8 4.5 0.5 6.46 6.8 7.14 1.0 - - - 9.6 2.5 3.4 mmbz9v1a 9a1 6.0 0.3 8.65 9.1 9.56 1.0 - - - 14 1.7 7.5 m m b z 1 0 v a 10a 6.5 0.3 9.50 10 10.5 1.0 - - - 14.2 1.7 7.5 i r breakdown v oltage v c @ i pp v rwm i @ v rwm v br (v) @ i t v c i pp v br device device marking volts na min nom max ma v q q a mv/ c mmbz12va 12a 8.5 200 11.40 12 12.60 1.0 17 2.35 7.5 MMBZ15VA 15a 12 50 14.25 15 15.75 1.0 21 1.9 12.3 mmbz18va 18a 14.5 50 17.10 18 18.90 1.0 25 1.6 15.3 mmbz20va 20a 17 50 19.00 20 21.00 1.0 28 1.4 17.2 mmbz27va 27a 22 50 25.65 27 28.35 1.0 40 1.0 24.3 mmbz33va 33a 26 50 31.35 33 34.65 1.0 46 0.87 30.4 4 . v b r m e a s u r e d a t p u l s e t e s t c u r r e n t i t a t a n a m b i e n t t e m p e r a t u r e o f 2 5 c . 5 . z z t a n d z z k a r e m e a s u r e d b y d i v i d i n g t h e a c v o l t a g e d r o p a c r o s s t h e d e v i c e b y t h e a c c u r r e n t a p p l i e d . t h e s p e c i f i e d l i m i t s a r e f o r i z ( a c ) = 0 . 1 i z ( d c ) , w i t h t h e a c f r e q u e n c y = 1 . 0 k h z . 6 . s u r g e c u r r e n t w a v e f o r m p e r f i g 5 a n d d e r a t e p e r f i g 6
weitron http://www .weitron.com.tw w e i t r o n fig.3 typical capacitance versus bias voltage fig.5 pulse waveform fig.6 pulse derating curve fig.1 typical breakdown voltage versus temperature fig.2 typical leakage current versus temperature 0 0 1 1 2 2 3 3 4 tempera ture( c) bias(v) a breakdown voltage(v) c, cpacitance( f) value(%) v @ i br p t i (na) r p , power dissipation(mw) d a tempera ture( c) tempera ture( c) t , ambient tempera ture( c) t, time(ms) (upper curve for each voltage is bidirectional mode,) (upper curve for each voltage is bidirectional mode,) -40 + 5 0 18 0 + 100 + 150 15 12 9 6 3 0 -4 0 + 2 5 1000 + 8 5 + 125 100 10 1 0.1 0.01 0 2 5 5 0 7 5 100 125 150 175 300 250 200 150 100 50 0 fig.4 steady state power derating curve fr-5 board alumina substra te 320 280 240 160 120 40 0 200 80 15 v 5.6 v lower curve is undirectional mode) lower curve is undirectional mode) 100 50 0 pulse width (t p ) is defined as tha t point where the peak current deca ys t o 5 0 % o f i pp . half v alue = i pp 2 t p peak v alue - i pp 100 90 80 70 60 50 40 30 20 10 0 0 2 5 5 0 7 5 100 125 150 175 200 peak pulse dera ting in % of peak power or current @ t =25 c t 10us r < _ mmbz5v6a series
weitron http://www .weitron.com.tw w e i t r o n fig.7 maximum non-repetitive surge pk p , peak surge power(w) pk p , peak surge power(w) pk pw , pulse width(ms) pw , pulse width(ms) power is defined as v i (pk)where v is the clamping voltage at i (pk). z rsm z rsm mmbz5v6a series 0.1 1 1 0 100 1000 1 10 100 x power is defined as v (nom) i (pk)where v (nom) is used for voltage classification the nominal zener voltage measured at the low test current z z z x unidirectional rect angular w a veform, t a = 25 c bidirectional 0.1 1 1 0 100 1000 1 10 100 unidirectional r e c t angular w a veform, t a = 25 c bidirectional power, p versus pw fig.8 maximum non-repetitive surge pk power, p (nom)versus pw
|
