www.littelfuse.com ?2007 littelfuse speci?cations are subject to change without notice. 89 transient voltage suppression diodes axial leaded C 15000w 15kpa series agency agency file number e128662/e230531 15kpa series rohs tvs devices are ideal for the protection of i/o interfaces, v cc bus and other vulnerable circuits used in telecom, computer, industrial and consumer electronic applications. applications features the 15kpa series is designed speci?cally to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. description parameter symbol value unit peak pulse power dissipation by 10x1000s test wavef orm (fig.1) (note 1) p ppm 15000 w steady state power dissipation on ini?nite heat sink at t l =75oc (fig. 5) p d 8.0 w peak forward surge current, 8.3ms single half sine wave unidirectional only (note 2) i fsm 400 a operating junction and storage temperature range t j , t stg -55 to 175 c typical thermal resistance junction to lead r ujl 8.0 c/w typical thermal resistance junction to ambient r uja 40 c/w notes: 1. non-repetitive current pulse , per fig. 3 and derated above t a = 25 o c per fig. 2. 2. measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per minute maximum. maximum ratings and thermal characteristics (t a =25 o c unless otherwise noted) agency approvals t 3 p ) 4 d p n q m j b o u t 5 z q j d b m n b y j n v n temperature coef?cient v br = 0.1% v br @25c t ( m b t t q b t t j w b u f e d i j q k v o d u j p o j o 1 q b d l b h f t 8 q f b l q v m t f capability at 101000s wavef orm, repetition rate (duty cycles):0.01% t ' b t u s f t q p o t f u j n f typically less than 1.0ps from 0 volts to bv min t & |