document number: 94157 for tec hnical questions, contact: diodestech@vishay.com www.vishay.com revision: 04-mar-10 1 schottky rectifier, 2 a vs-20bq030pbf vishay high power products features ? small foot print, surface mountable ? very low forward voltage drop ? high frequency operation ? guard ring for enhanced ruggedness and long term reliability ? meets msl level 1, per j-std-020, lf maximum peak of 260 c ? compliant to rohs directive 2002/95/ec ? designed and qualified for industrial level description the vs-20bq030pbf surface mount schottky rectifier has been designed for applications requiring low forward drop and small foot prints on pc bo ards. typical applications are in disk drives, switching power supplies, converters, freewheeling diodes, battery charging, and reverse battery protection. product summary i f(av) 2.0 a v r 30 v s mb cathode anode major ratings and characteristics symbol characteristics values units i f(av) rectangular waveform 2.0 a v rrm 30 v i fsm t p = 5 s sine 350 a v f 2.0 apk, t j = 125 c 0.37 v t j range - 55 to 150 c voltage ratings parameter symbol vs-20bq030pbf units maximum dc reverse voltage v r 30 v maximum working peak reverse voltage v rwm absolute maximum ratings parameter symbol test conditions values units maximum average forward current i f(av) 50 % duty cycle at t l = 119 c, rectangu lar waveform 2.0 a maximum peak one cycle non-repetitive surge current i fsm 5 s sine or 3 s rect. pulse following any rated load condition and with rated v rrm applied 350 10 ms sine or 6 ms rect. pulse 80 non-repetitive avalanche energy e as t j = 25 c, i as = 1 a, l = 6 mh 3.0 mj repetitive avalanche current i ar current decaying linearly to zero in 1 s frequency limited by t j maximum v a = 1.5 x v r typical 1.0 a
www.vishay.com for technical questions, contact: diodestech@vishay.com document number: 94157 2 revision: 04-mar-10 vs-20bq030pbf vishay high power products schottky rectifier, 2 a note (1) pulse width < 300 s, duty cycle < 2 % notes (1) thermal runaway condition fo r a diode on its own heatsink (2) mounted 1" square pcb electrical specifications parameter symbol test conditions values units maximum forward voltage drop v fm (1) 2 a t j = 25 c 0.470 v 4 a 0.550 2 a t j = 125 c 0.370 4 a 0.470 maximum reverse leakage current i rm (1) t j = 25 c v r = rated v r 0.5 ma t j = 125 c 15 maximum junction capacitance c t v r = 5 v dc , (test signal range 100 khz to 1 mhz), 25 c 200 pf typical series inductance l s measured lead to lead 5 mm from package body 2.0 nh maximum voltage rate of change dv/dt rated v r 10 000 v/s thermal - mechanical specifications parameter symbol test conditions values units maximum junction and storage temperature range t j (1) , t stg - 55 to 150 c maximum thermal resistance, junction to lead r thjl (2) dc operation 25 c/w maximum thermal resistance, junction to ambient r thja 80 approximate weight 0.10 g 0.003 oz. marking device case style smb (similar do-214aa) v2e dp tot dt j ------------- 1 r thja -------------- <
document number: 94157 for tec hnical questions, contact: diodestech@vishay.com www.vishay.com revision: 04-mar-10 3 vs-20bq030pbf schottky rectifier, 2 a vishay high power products fig. 1 - maximum forward voltage drop characteristics fig. 2 - typical peak reverse current vs. reverse voltage fig. 3 - typical junction capacitance vs. reverse voltage fig. 4 - maximum thermal impedance z thjl characteristics 0.1 1 10 i f - instantaneous forward current (a) v fm - forward voltage drop (v) 0.1 0.3 0.6 0.8 0.7 0.4 0.2 0 t j = 150 c t j = 125 c t j = 25 c 0.5 i r - reverse current (ma) v r - reverse voltage (v) 05 30 0.0001 0.01 0.1 1 10 100 25 0.001 20 15 10 t j = 150 c t j = 125 c t j = 100 c t j = 75 c t j = 50 c t j = 25 c c t - junction capacitance (pf) v r - reverse voltage (v) 02030 100 1000 10 10 t j = 25 c z thjc - thermal impedance (c/w) 0.1 1 10 100 t 1 - rectangular pulse duration (s) 0.00001 0.0001 0.001 0.01 0.1 1 single pulse (thermal resistance) d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 . . p dm t 1 t 2 notes: 1. duty factor d = t 1 /t 2 2. peak t j = p dm x z thjl + t l 10 100
www.vishay.com for technical questions, contact: diodestech@vishay.com document number: 94157 4 revision: 04-mar-10 vs-20bq030pbf vishay high power products schottky rectifier, 2 a fig. 5 - maximum average forward current vs. allowable lead temperature fig. 6 - maximum average forward dissipation vs. average forward current fig. 7 - maximum peak surge forward current vs. pulse duration note (1) formula used: t l = t j - (pd + pd rev ) x r thjl ; 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 lead temperature (c) i f(av) - average forward current (a) 0 2.5 3.0 1.5 50 70 90 110 140 150 0.5 2.0 1.0 120 d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 dc see note (1) square wave (d = 0.50) 80 % rated v r applied 60 80 100 130 0 average power loss (w) i f(av) - average forward current (a) 0 2.0 3.0 0.2 0.4 0.6 0.8 1.0 1.2 2.5 0.5 1.0 1.5 d = 0.20 d = 0.25 d = 0.33 d = 0.50 d = 0.75 rms limit dc i fsm - non-repetitive surge current (a) t p - square wave pulse duration (s) 100 1000 10 100 1000 10 000 at any rated load condition and with rated v applied following surge rrm 10
document number: 94157 for tec hnical questions, contact: diodestech@vishay.com www.vishay.com revision: 04-mar-10 5 vs-20bq030pbf schottky rectifier, 2 a vishay high power products ordering information table 2 - current rating 3 - b = single lead diode 4 - q = schottky ?q? series 5 - voltage rating (030 = 30 v) 6 - none = box (1000 pieces) tr = tape and reel (3000 pieces) - pbf = lead (pb)-free 7 device code 5 13 24 67 vs- 20 b q 030 tr pbf 1 - hpp product suffix links to related documents dimensions www.vishay.com/doc?95017 part marking information www.vishay.com/doc?95029 packaging information tape and reel www.vishay.com/doc?95034 bulk www.vishay.com/doc?95397 spice model www.vishay.com/doc?95284
document number: 95017 for technical questions concer ning discrete products, cont act: diodes-tech@vishay.com www.vishay.com revision: 25-jun-07 for technical qu estions concerning module products , contact: ind-modules@vishay.com 1 smb outline dimensions vishay high power products dimensions in millimeters (inches) 3.80 (0.150) 3.30 (0.130) 4.70 (0.185) 4.10 (0.161) 2.15 (0.085) 1.80 (0.071) 2.40 (0.094) 1.90 (0.075) 1.30 (0.051) 0.76 (0.030) 0.30 (0.012) 0.15 (0.006) 5.60 (0.220) 5.00 (0.197) 4.0 (0.157) 2.0 typ. (0.079 typ.) 2.5 typ. (0.098 typ.) soldering pad 1 2 1 2 polarity part number 4.2 (0.165)
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