schottky barrier diode rb205t-40 ? applications ? dimensions (unit : mm) ? structure switching power supply ? features 1) cathode common type. (to-220) 2) low i r 3) high reliability ? construction silicon epitaxial planer ? absolute maximum ratings (ta=25c) symbol unit reverse voltage (repetitive peak) v rm v v r v average rectified forward current (*1) io a forward current surge peak (60hz / 1cyc) (*1) i fsm a tj ? c tstg ? c (*1)business frequencies, rating of r-load, 1/2 io per diode, tc=125 ? c ? electrical characteristic (ta=25c) symbol min. typ. max. unit forward voltage v f - - 0.55 v i f =7.5a reverse current i r - - 300 ? a v r =40v thermal impedance ? jc --2 ? c/w junction to case 15 100 junction temperature 150 parameter limits 45 reverse voltage (dc) 40 storage temperature ? 40 to ? 150 conditions parameter (1) (2) (3) 205 4 1/3 2011.04 - rev.d data sheet www.rohm.com ? 2011 rohm co., ltd. all rights reserved.
rb205t-40 ? electrical characteristic curves 0 5 10 15 20 25 30 ave:20.6ns ta=25 i f =0.5a i r =1a irr=0.25*i r n=10pcs 10 100 1000 110100 8.3ms ifsm 1cyc 0.1 1 10 100 0.001 0.01 0.1 1 10 100 1000 rth(j-a) rth(j-c) 1ms im=100ma i f =10a 300us time 10 100 1000 110100 8.3ms ifsm 1cyc 8.3ms 1550 1560 1570 1580 1590 1600 1610 1620 1630 1640 1650 ave:1619.8pf ta=25 f=1mhz v r =0v n=10pcs 0 50 100 150 200 0 50 100 150 200 250 300 ave:176.0a 8.3ms ifsm 1cyc 470 480 490 500 510 520 1 10 100 1000 10000 0 5 10 15 20 25 30 0.1 1 10 100 1000 10000 100000 1000000 0 5 10 15 20 25 30 35 40 0.01 0.1 1 10 0 100 200 300 400 500 600 700 forward voltage : v f (mv) v f -i f characteristics forward current:i f (a) reverse current:i r (ua) reverse voltage : v r (v) v r -i r characteristics capacitance between terminals:ct(pf) reverse voltage : v r (v) v r -ct characteristics v f dispersion map forward voltage:v f (mv) reverse current:i r (ua) i r dispersion map capacitance between terminals:ct(pf) ct dispersion map peak surge forward current:i fsm (a) peak surge forward current:i fsm (a) number of cycles i fsm -cycle characteristics peak surge forward current:i fsm (a) time:t(ms) i fsm -t characteristics time:t(s) rth-t characteristics transient thaermal impedance:rth ( /w) forward power dissipation:pf(w) average rectified forward current : io(a) cio-pf characteristics trr dispersion map reverse recovery time:trr(ns) ta=-25 ta=125 ta=25 ta=150 ta=-25 ta=125 ta=25 ta=75 ta=150 f=1mhz ave:492.2mv ta=25 i f =7.5a n=30pcs ta=25 v r =40v n=30pcs ave:35.9ua 0 5 10 15 20 0 5 10 15 20 25 30 ta=75 d=1/2 sin( =180) dc i fsm dispersion map 2/3 2011.04 - rev.d www.rohm.com ? 2011 rohm co., ltd. all rights reserved. data sheet
rb205t-40 0 5 10 15 20 25 30 no break at 30kv c=100pf r=1.5k ? c=200pf r=0 ? ave:21.6kv 0 2 4 6 8 10 12 14 16 18 20 0 10203040 reverse power dissipation:p r (w) reverse voltage:v r (v) v r -p r characteristics ambient temperature:ta( ) derating curve"(io-ta) average rectified forward current:io(a) average rectified forward current:io(a) case temparature:tc( ) derating curve"(io-tc) sin( =180) 0 5 10 15 20 25 30 35 40 0 25 50 75 100 125 150 sin( =180) dc d=1/2 0 5 10 15 20 25 30 35 40 0 25 50 75 100 125 150 sin( =180) dc d=1/2 t tj=150 d=t/t t v r io v r =20v 0a 0v t tj=150 d=t/t t v r io v r =20v 0a 0v dc d=1/2 electrostatic discharge test esd(kv) esd dispersion map 3/3 2011.04 - rev.d www.rohm.com ? 2011 rohm co., ltd. all rights reserved. data sheet
r 1 120 a ww w .rohm.com ? 20 1 1 rohm co., ltd. all rights reserved. notice rohm customer support system http://ww w . r ohm.com/contact/ thank you for your accessing to rohm p r oduct informations. mo r e detail p r oduct informations and catalogs a r e available, please contact us. notes
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