r.3.070799 microsemi reserves the right to change, without notice, the specifications and information contained herein. visit our web site at www.microsemi.com or contact our factory direct. . UMIL10P 10 watts, 28 volts, class ab uhf communications 100 ? 400 mhz general description the UMIL10P is a common emitter broadband transistor specifically intended for use in the 100-400 mhz frequency band. it may be operated in class ab or c. gold metallization and silicon diffused resistors ensure ruggedness and high reliability. case outline 55fu style 2 absolute maximum ratings maximum power dissipation device dissipation @25 c 28 w maximum voltage and current collector to base voltage (bv ces ) 55 v emitter to base voltage (bv ebo ) 4.0 v collector current (i c ) 1.5 a maximum temperatures storage temperature -65 to +150 c operating junction temperature +200 c backside surface is gold metalized electrical characteristics @ 25 c symbol characteristics test conditions min typ max units p out power out f = 400 mhz 10 w p in power input v cc = 28 volts, pout = 10w 1.0 w p g power gain 10.0 db c collector efficiency 45 50 % vswr load mismatch tolerance 10:1 functional characteristics @ 25 c bv ebo emitter to base breakdown ie = 5 ma 4.0 v bv ces collector to emitter breakdown ic = 50 ma 55 v bv ceo collector to emitter breakdown ie = 50 ma 30 v cob output capacitance vcb = 28v, f = 1 mhz 11.5 pf h fe dc ? current gain vce = 5v, ic = 200ma 10 150 jc thermal resistance 6.3 c/w rev a may 1999
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