document number: 94436 for technical ques tions, contact: ind-modules@vishay.com www.vishay.com revision: 23-apr-08 1 schottky rectifier, 400 a vskcs400/045p vishay high power products mechanical description the generation 5 of add-a-pak module combine the excellent thermal perform ance obtained by the usage of direct bonded copper substrate with superior mechanical ruggedness, thanks to the insertion of a solid copper baseplate at the bottom side of the device. the cu baseplate allow an easier mounting on the majority of heatsink with increased tole rance of surface roughness and improved thermal spread. the generation 5 of add-a-pak module is manufactured without hard mold, eliminating in this way any possible direct stress on the leads. the electrical terminals are secured against axial pull-out: they are fixed to the module housing via a click-stop feature already tested and proved as reliable on other vishay hpp modules. features ? 150 c t j operation ? low forward voltage drop ? high frequency operation ? guard ring for enhanced ruggedness and long term reliability ? ul pending ? totally lead (pb)-free, rohs compliant ? designed and qualified for industrial level description the vskcs400.. schottky rectifier doubler module has been optimized for low reverse leak age at high temperature. the proprietary barrier technology allows for reliable operation up to 150 c junction temperature. typical applications are in high current switching power supplies, plating power supplie s, ups systems, converters, freewheeling diodes, welding, and reverse battery protection. product summary i f(av) 400 a add-a-pak major ratings and characteristics symbol characteristics values units i f(av) rectangular waveform 400 a v rrm 45 v i fsm t p = 5 s sine 29 000 a v f 200 apk, t j = 125 c 0.69 v t j range - 55 to 150 c voltage ratings parameter symbol vskcs400/045p units maximum dc reverse voltage v r 45 v maximum working peak reverse voltage v rwm
www.vishay.com for technical questi ons, contact: ind-modules@vishay.com document number: 94436 2 revision: 23-apr-08 vskcs400/045p vishay high power products schottky rectifier, 400 a note (1) pulse width < 500 s absolute maximum ratings parameter symbol test conditions values units maximum average forward current per module i f(av) 50 % duty cycle at t c = 85 c, rectangular waveform 400 a per leg 200 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 29 000 10 ms sine or 6 ms rect. pulse 3400 non-repetitive avalanche energy e as t j = 25 c, i as = 19 amps, l = 1 mh 180 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 40 a electrical specifications parameter symbol test conditions values units maximum forward voltage drop v fm (1) 200 a t j = 25 c 0.60 v 400 a 0.86 200 a t j = 125 c 0.69 400 a 1.09 maximum reverse leakage current i rm (1) t j = 25 c v r = rated v r 20 ma t j = 125 c 1.2 a maximum junction capacitance c t v r = 5 v dc (test signal range 100 khz to 1 mhz) 25 c 10 300 pf typical series inductance l s from top of terminal hole to mounting plane 5.0 nh maximum voltage rate of change dv/dt rated v r 10 000 v/s rms insulation voltage v ins 50 hz, circuit to base, all terminals shorted (1 s) 3500 v thermal - mechanical specifications parameter symbol test conditions values units maximum junction and storage temperature range t j , t stg - 55 to 150 c maximum thermal resistance, junction to case per leg r thjc dc operation 0.30 c/w maximum thermal resistance, case to heatsink r thcs mounting surface, smooth and greased 0.1 approximate weight 110 g 4oz. mounting torque 10 % to heatsink 5 nm busbar 4 case style jedec to-240aa
document number: 94436 for technical ques tions, contact: ind-modules@vishay.com www.vishay.com revision: 23-apr-08 3 vskcs400/045p schottky rectifier, 400 a vishay high power products 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 thermal impedance z thjc characteristics forward voltage drop - v (v) instantaneous forward current - i f (a) 0.0 0.5 1.0 1.5 2.0 2.5 1 10 100 1000 tj = 25c tj = 125c tj = 150c fm reverse current - i r (ma) reverse voltage - v r (v) 0 1020304050 0.1 1 10 100 1000 10000 25c 75c 100c 50c 125c 150c reverse voltage - v r (v) junction capacitance - c t (pf) 1000 10000 0 1020304050 t = 2 5 c j t 1 , rectangular pulse duration (seconds) thermal impedance z thjc (c/w) 1e-05 1e-04 1e-03 1e-02 1e-01 1e+00 1e+01 0.001 0.01 0.1 1 single pulse (thermal resistance) d = 0.2 d = 0.25 d = 0.33 d = 0.5 d = 0.75
www.vishay.com for technical questi ons, contact: ind-modules@vishay.com document number: 94436 4 revision: 23-apr-08 vskcs400/045p vishay high power products schottky rectifier, 400 a fig. 5 - maximum allowable case temperature vs. average forward current fig. 6 - forward power loss characteristics fig. 7 - maximum non-repetitive surge current fig. 8 - unclamped inductive test circuit 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 average forward current - i f (av) (a) allowable case temperature (c) 0 100 200 300 400 500 0 20 40 60 80 100 120 140 160 dc square wave (d=0.50) 80% rated vr applied see note (1) average forward current - i f (a) average power loss - (watts) 0 50 100 150 200 250 300 0 50 100 150 200 180 120 90 60 30 dc rms limit (av) square wave pulse duration - t p (microsec) non-repetitive surge current - i fsm (a) 1000 10000 100000 10 100 1000 10000 at any rated load condition and with rated v applied fo l l o w i n g su r g e rrm c u rrent monitor high-speed s w itch d.u.t. r g = 25 + free w heel diode v d = 25 v l irfp460 40hfl40s02
document number: 94436 for technical ques tions, contact: ind-modules@vishay.com www.vishay.com revision: 23-apr-08 5 vskcs400/045p schottky rectifier, 400 a vishay high power products ordering information table circuit configuration 1 - vishay hpp 2 - circuit configuration: 3 - s = schottky diode 4 - average rating (x 10) 5 - product silicon identification 6 - voltage rating (045 = 45 v) kc = add-a-pak - 2 diodes/common cathode 7 - lead (pb)-free device code 5 13 24 67 vs kc s 40 0 / 045 p (2) - (3) - (1) + links to related documents dimensions http://www.vishay.com/doc?95174
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay all product specifications and data are subject to change without notice. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, ?vishay?), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners.
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