1 of 2 27v 1.0w AZD27C21 e-mail: sales@taychipst.com web site: www.taychipst.com features maximum ratings and electrical characteristics mechanical data voltage regulator zener diodes ? sillicon planar zener diode ? 1000mw power dissipation ? zener and surge current specification ? low leakage current ? excellent stability ? lead free in comply with eu rohs 2002/95/ec directives. ? green molding compound as per iec61249 std. . (halogen free) ? case: sod-123fl, molded plastic ? terminals: solderable per mil-std-750, method 2026 ? polarity: see diagram below ? approx. weight: 0.0006 ounces, 0.0173 grams sod-123fl parameter symbol value units forward voltage at 0.2a v f 1.2 v power dissipation p d 1 w typical thermal resistance , junction to ambient r ? ja 200 o c/w operating junction temperature and storage temperature range t j ,t stg -55 to +150 o c part number nominal zener voltage max. zener impedance max reverse leakage current marking code v z @i zt z zt @i zt z zk @i zk i r @v r nom. v min. v max. v ? ma ? ma ? a v AZD27C21 21 20.0 22.4 15 20 750 0.25 10 15 c21 notes: 1. mounted on an fr4 pcb, single-sided copper, mini pad.
2 of 2 e-mail: sales@taychipst.com web site: www.taychipst.com 27v 1.0w AZD27C21 voltage regulator zener diodes a 1 10 100 1000 0.1 1 10 100 v r , reverse bias voltage (v) c j , junction capacitance (pf) 0 20 40 60 80 100 120 140 160 180 200 0 5 10 15 20 25 v r , reverse voltage (v) i r , leakage current (na) t j = 25c fig.3 typical leakage characteristics fig.2 typical junction capacitance fig.1 power derating curve fig.4 typical forward characteristics fig.5 typical zener characteristics 1 10 100 0.1 1 10 100 i z , zener current (ma) t j = 25 to 150 c s z , temperature coefficient(mv/c) fig.6 temperature coefficient as a function of working current; typical values. 0 200 400 600 800 1000 1200 0 25 50 75 100 125 150 t a , ambient temperature (c) p d , power dissipation (mw) 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 v z , zener voltage (v) i z , zener current (ma) t j = 25c 0.01 0.1 1 0.4 0.5 0.6 0.7 0.8 0.9 1 v f , forward voltage (v) t j = 150c t j = 125c t j = 75c t j = 25c i f , forward current (a)
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