page . 1 july 26,2012-rev.00 azd27c21 maximum ratings and electrical characteristics (t a =25 o c unless otherwise noted) 0.115(2.90) 0.106(2.70) 0.044(1.10) 0.031(0.80) 0.043(1.08) 0.038(0.98) 0.008(0.20) 0.004(0.10) 0.145(3.70) 0.137(3.50) 0.030(0.75) 0.017(0.45) 0.075(1.90) 0.067(1.70) voltage regulator zener diodes voltage 21 volts power 1 watt features ? 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) mechanical data ? 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 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 1 2 c a t h o d e a n o d e 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.
page . 2 a rating and characteristic curves azd27c21 july 26,2012-rev.00 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)
page . 3 order information mounting pad layout ? packing information t/r - 10k per 13" plastic reel t/r - 3k per 7 plastic reel azd27c21 july 26,2012-rev.00 sod-123fl 0.167 (4.25) 0.106 (2.70) 0.031 (0.78) unit inch(mm)
page . 4 azd27c21 july 26,2012-rev.00 part no_packing code_version azd27c21 _r1_00001 for example : rb500v-40 _ r2 _ 00001 azd27c21 _r2_00001 part no. serial number version code means hf packing size code means 13" packing type means t/r packing code xx version code xxxxx packing type 1 st code packing size code 2 nd code hf or rohs 1 st code 2 nd ~5 th code tape and ammunition box (t/b) a n/a 0 hf 0 serial number tape and reel (t/r) r 7" 1 rohs 1 serial number bulk packing (b/p) b 13" 2 tube packing (t/p) t 26mm x tape and reel (right oriented) (trr) s 52mm y tape and reel (left oriented) (trl) l panasert t/b cathode up (pbcu) u forming f panasert t/b cathode down (pbcd) d
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