of 3 3.0a axial leaded schottky barrier rectifiers 31dq05-31DQ06 1 features maximum ratings and electrical characteristics @ t a = 25 c unless otherwise specified mechanical data a a b c d c a s e : m o l d e d p l a s t ic do-201ad dim min max a 25.40 b 7.20 9.50 c 1.20 1.30 d 4.80 5.30 all dimensions in mm symbol characteristics values units i f(av) rectangular waveform 3.3 a v rrm 50/60 v i fsm t p = 5 s sine 340 a v f 3 apk, t j = 25 c 0.62 v t j - 40 to 150 c designed and qualified for industrial level lead (pb)-free plating guard ring for enhanced ruggedness and long term high purity, high temperature epoxy encapsulation for very low forward voltage drop high frequency operation low profile, axial leaded outline enhanced mechanical strength and moisture resistance reliability
of 3 2 fig. 1 - maximum forward voltage drop characteristics fig. 2 - typical values of reverse current vs. reverse voltage fig. 3 - typical junction capacitance vs. reverse voltage fig. 4 - maximum allowable lead temperature vs. average forward current fig. 5 - forward powe r loss characteristics forward voltage drop - v fm (v) instantaneous forward current - i f (a) 0.1 1 10 0 0.2 0.4 0.6 0.8 1 t = 150?c t = 125?c t = 25?c j j j reverse voltage - v r (v) reverse current - i r (ma) 0.001 0.01 0.1 1 10 100 0204060 125?c 25?c t = 150?c j reverse voltage - v r (v) junction capacitance - c t (pf) 10 100 1000 04080120160 t = 25?c j average forward current - i f (av) (a) allowable lead temperature (?) 70 90 110 130 150 012345 dc see note (1) square wave (d = 0.50) 80% rated vr applied average forward current - i f (av) (a) average power loss (watts) 0 0.5 1 1.5 2 2.5 3 012345 dc rms limit d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 note (1) formula used: t c = t j - (pd + pd rev ) x r thjc ; pd = forward power loss = i f(av) x v fm at (i f(av) /d) (see fig. 6); pd rev = inverse power loss = v r1 x i r (1 - d); i r at v r1 = 80 % rated v r
2 of 2 fig. 6 - maximum non-repetitive surge current square wave pulse duration - t p (microsec) non-repetitive surge current - i fsm (a) 10 100 1000 10 100 1000 10000 at any rated load condition and with rated v applied following surge rrm
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