bat54 series ? november 1998 - ed : 3a small signal schottky diode very small conduction losses negligible switching losses low forward voltage drop surface mount device features and benefits schottky barrier diodes encapsulated in a sot-23 small smd packages. single and double diodes with different pining are available. description sot-23 k k a a nc symbol parameter value unit v rrm repetitive peak reverse voltage 30 v i f continuous forward current 0.3 a i fsm surge non repetitive forward current tp=10ms sinusoidal 1 a p tot power dissipation (note 1) 250 mw t stg maximum storage temperature range - 65 to +150 c tj maximum operating junction temperature * 150 c t l maximum temperature for soldering durong 10s 260 c note 1: for double diodes, ptot is the total dissipation of both diodes absolute ratings (limiting values) bat54 a2 a2 a1 a1 k k bat54c a2 a2 a1 k2 a1 k2 k1 k1 bat54s *: dptot dtj < 1 rth ( j - a ) thermal runaway condition for a diode on its own heatsink k2 k2 k1 k1 a a bat54a 1/5
symbol parameters tests conditions min. typ. max. unit v f * forward voltage drop t amb =25 ci f = 0.1 ma 240 mv i f = 1 ma 320 i f = 10 ma 400 i f = 30 ma 500 i f = 100 ma 900 i r ** reverse current t amb =25 cv r =30v 1 m a t amb = 100 c 100 pulse test : * tp = 380 m s, d <2% ** tp = 5 ms, d <2% static electrical characteristics (per diode) symbol parameters tests conditions min. typ. max. unit c junction capacitance t amb =25 cv r = 1 v f = 1 mhz 10 pf t rr reverse recovery time i f = 10 ma irr = 10 ma i rr = 1 ma r l = 100 w 5ns dynamic characteristics (tj = 25 c) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 pf(av)(w) d = 0.2 d = 0.5 d = 1 d = 0.05 d = 0.1 if(av) (a) t d =tp/t tp fig.1 : average forward power dissipation versus average forward current. 0 25 50 75 100 125 150 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 if(av)(a) t d =tp/t tp tamb( c) fig.2 : average forward current versus ambient temperature( d = 1). symbol parameter value unit r th (j-a) junction to ambient (*) 400 c/w (*) mounted on ceramic substrate: 7 x 5 x 0.5 mm thermal resistance bat54 series 2/5
1e-3 1e-2 1e-1 1e+0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 im(a) ta=25 c ta=50 c ta=100 c i m t d =0.5 t(s) fig.3 : non repetitive surge peak forward current versus overload duration (maximum values). 0 5 10 15 20 25 30 1e-2 1e-1 1e+0 1e+1 1e+2 vr(v) ir( m a) tj=50 c tj=25 c tj=100 c fig.5 : reverse leakage current versus reverse voltage applied (typical values). 1e-3 1e-2 1e-1 1e+0 1e+1 1e+2 0.01 0.10 1.00 tp(s) zth(j-a)/rth(j-a) t d =tp/t tp single pulse d = 0.1 d = 0.2 d = 0.5 fig.4 : relative variation of thermal impedance junction to ambient versus pulse duration (alumine substrate 10mm x 8mm x 0.5mm). 0 25 50 75 100 125 150 1e-2 1e-1 1e+0 1e+1 1e+2 1e+3 1e+4 ir( m a) vr=30v tj( c) fig.6 : reverse leakage current versus junction temperature. 12 5102030 1 2 5 10 vr(v) c(pf) f=1mhz tj=25 c fig.7 : junction capa citance versus reverse voltage applied (typical values). 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1e-4 1e-3 1e-2 1e-1 5e-1 vfm(v) ifm(a) tj=100 c tj=50 c tj=25 c fig.8 : forward voltage drop versus forward current (typical values). bat54 series 3/5
package mechanical data sot-23 b e s e e1 a d c l h a1 ref. dimensions millimeters inches min. max. min. max. a 0.64 1.3 0.025 0.051 a1 0 0.1 0 0.004 b 0.3 0.54 0.012 0.021 c 0.085 0.18 0.003 0.007 d 2.67 3.05 0.105 0.120 e 0.89 1.05 0.035 0.041 e1 1.7 2.1 0.067 0.083 e 1.2 1.6 0.047 0.063 h 2.1 2.75 0.083 0.108 s 0.35 0.65 0.014 0.026 ordering type marking package weight base qty delivery mode bat54film d86 sot-23 0.01g 3000 tape & reel bat54afilm d84 sot-23 0.01g 3000 tape & reel bat54cfilm d87 sot-23 0.01g 3000 tape & reel bat54sfilm d88 sot-23 0.01g 3000 tape & reel epoxy meets ul94,v0 bat54 series 4/5
information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringementof patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap- proval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics ? 1998 stmicroelectronics - printed in italy - all rights reserved. stmicroelectronics group of companies australia - brazil - canada - china - france - germany - italy - japan - korea - malaysia - malta - mexico - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. http://www.st.com 0.9 0.035 0.9 0.035 1.9 0.075 mm inch 2.35 0.92 1.1 0.043 1.1 0.043 1.45 0.037 0.9 0.035 footprint dimensions compatible sot-23 / sc-59 (in millimeters and inches) 0.9 0.035 0.9 0.035 2 0.079 mm inch 2.35 0.92 1 0.040 1 0.040 1 0.040 0.9 0.035 optimized sot-23 footprint dimensions (in millimeters and inches) bat54 series 5/5
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