general description the TPR400A is a high power common ba se bipolar transistor. it is designed for pulsed systems in th e frequency band 1030-1090 mhz. the device has gold thin-film metallizati on for proven highest mttf. low thermal resistance packaging reduces the junction temperature and extends device lifetime. case outline 55cx, style 1 absolute maximum ratings maximum power dissipation @ 25 o c 2 875 watts maximum voltage and current bvces collector to base voltage 55 volts bvebo emitter to base voltage 4.0 volts ic collector current 30 amps maximum temperatures storage temperature - 65 to + 150 o c operating junction temperature + 200 o c electrical characteristics @ 25 o c symbol characteristics test conditions min typ max units pout pin pg c vswr power out power input power gain collector efficiency load mismatch tolerance f = 1030 &1090 mhz vcc = 50 volts pw = 10 sec df = 1% 400 9.5 50 45 5:1 watts watts db % bvebo bvces h fe jc 1 emitter to base breakdown collector to emitter breakdown dc - current gain thermal resistance ie = 20 ma ic = 25 ma ic = 2.5 a, vce = 5 v 4.0 55 10 100 .2 volts volts o c/w note 1: at rated output power and pulse conditions rev b ? november 2009 TPR400A 400 watts, 50 volts, pulsed avionics 1030-1090 mhz
TPR400A circuit information TPR400A test circuit component designations and values part description part description c1 1000 uf electrolytic capcitor z6 1000 x 700 mils (w x l) c2 1 uf chip capacitor z7 25 x 90 mils (w x l) c3 33pf chip capacitor (atc 100a) z8 325 x 120 mils (w x l) l1, l2 4 turns, 20awg, idia 0.1? z9 25 x 120 mils (w x l) z1 25 x 630 mils (w x l) z10 100 x 270 mils (w x l) z2 300 x 315 mils (w x l) z11 450 x 200 mils (w x l) z3 25 x 305 mils (w x l) z12 25 x 245 mils (w x l) z4 330 x 130 mils (w x l) z13 25 x 205 mils (w x l) z5 1000 x 600 mils (w x l) pcb duroid 5880; er2.22, h=10mils
TPR400A device impedance information z s z l typical impedance values frequency (mhz) z s ( ? ) z l ( ? ) 1030 0.96 ? j3.29 1.02 ? j2.51 1090 1.00 ? j3.02 1.12 ? j2.24 * v cc = 50v, p in = 45w * pulse format: 10s, 1% long term duty factor input matching network output matching network
TPR400A
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