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Datasheet File OCR Text: |
DB4 bidirectional trigger diode features v bo : 40v brea kover vol t age ra nge : 35 to 45v applications functio n ing a s a trigge r dio de with a fixed volt age ref eren c e, t he DB4 ca n be used in conj unct io n with triacs for simplified gat e control ci rcuit s o r as a st a r ting ele ment in fluore s cent lamp b a llast s. all dimensions in mm do-35 absolute maximum ratings (limiting values) paramete r symbol v a lue unit rep e titive peak on -st a te current (tp = 20 s f = 1 2 0 hz) i t rm 2 a operating jun c tion tempe r a t ure ra nge t j -40 ~ +12 5 s t or age t em p er at u r e r a nge t stg -40 ~ +12 5 s tresses exceeding maximum rati ngs may dam a g e the device. m a ximu m ratings a r e stress ratings o nl y . functional operation above t he recommended o perating conditio ns is not implied . extende d e x p o sure to stresses above the r ecommended ope ratin g conditions may a f f e ct dev i c e r el i abilit y . electrical characteristics ( t j =25 u n l e ss otherwi se spe c ified) paramete r symbol t e st conditions v a lue unit min. 35 typ . 40 b rea kover vol t age* v bo c=22nf ** max. 45 v brea kover vol t age symm etry |v bo1 - v bo 2 | c =22nf ** max. 3 v dynami c bre a kove r volt ag e* v v bo and v f at 10ma min. 5 v output volt ag e* v o see di agram 2(r=2 0 ) min. 5 v brea kov er c u rre nt* i bo c=22nf ** max. 50 a rise time* tr see di agram 3 max. 2 s lea kag e c u rrent * i r v r =0. 5 v bo max max. 10 a *applicable to both for w a r d and r e verse directions. **connected in p arallel to the device. 0.079(2.0) max 0.020(0.52) typ 0.165 (4.2) max 1.0 2(26.0) min. 1.0 2(26.0) min.
DB4 ra tings and characteristic cur ves diagra m 2. t e st circuit diagra m 1. v o l t age ? c u rrent ch aracteris tic c u r v e diagra m 3. rise time meas urem ent DB4 ra tings and characteristic cur ves figure 1. rela ti v e v a riati on of vbo v ers us junct i on te mper ature ( t y p ical v a lues) figure 2. re peti ti v e pe ak p u lse current v e rsus pulse dura t io n ( m axim u m v a lue s) figure 3. t i me d u ratio n w h ile current p u lse is hi gher 50 m a v e r s u s c a n d rs ( t y p i cal v al u es) |
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