MRF247 is designed for 12.5 volt vhp large-signal amplifier applications in industrial and commercial fm equipment operating to 175 mhz. ? specified 12.5 volt, 175 mhz characteristics ? output power = 75 watts power gain = 7.0 db min efficiency = 55% min ? characterized with series equivalent large-signal impedance parameters ? internal matching network optimized for minimum gain frequency slope response over the range 136 to 175 mhz ? load mismatch capability at rated pout and supply voltage telephone: (973) 376-2922 MRF247 75 w, 175 mhz controlled q rf power transistor npn silicon case 316-01, maximum ratings rating collector-emitter voltage collector-base voltage emitter-base voltage collector current ? peak total device dissipation @ tc = 25c (1) derate above 25c storage temperature range symbol vceo vcbo vebo 'c pd tstg value 18 36 4.0 20 250 1.43 -65 to -1-150 unit vdc vdc vdc adc watts w/c c thermal characteristics characteristic thermal resistance, junction to case (2) symbol rejc max 0.7 unit c/w electrical characteristics he = 25c unless otherwise noted.) characteristic symbol min typ max unit off characteristics collector-emitter breakdown voltage (ic = 100madc, ib = o) collector-emitter breakdown voltage (ic = 50 madc, vbe = 0) emitter-base breakdown voltage (1^ = 10 madc, lc = 0) v(br)ceo v(br)ces v(br)ebo 18 36 4.0 ? ? ? ? ? ? vdc vdc vdc v! sam-conductors entourages customers ?, verify that datasheets nre current before placing orders
electrical characteristics (tc = 25c unless otherwise noted.) characteristic | symbol | min typ max unit on characteristics dc current gain (1c = 5.0 adc, vce = 5.0 vdc) hfe 10 75 150 ? dynamic characteristics output capacitance (vcb = 1 s vdc, ie = o, f = 1 .0 mhz) cob ? 235 300 pf functional tests common-emitter amplifier power gain (vcc = 12-5 vdc, pout = 75 watts, f = 175 mhz) collector efficiency (vcc = 12-5 vdc, pout = 75 watts, f = 175 mhz) load mismatch (vcc = 12-5 vdc, pout = 75 watts, f = 175 mhz, vswr = 30: 1 all phase angles) gpe t! v 7.0 55 8.5 60 ? ? db % no degradation in output power notes: 1. flange is isolated in all styles. el rj ?... lj p*m a 6 c d e f h j k l n q r u inches w4 24.38 12.45 5.97 5.33 216 506 18.29 0.10 10,29 3.81 3.81 2.92 3.05 11.94 max 25.14 12.95 7.62 5.58 3.04 5.33 18.54 0.15 11.17 4.06 4.31 3.30 3.30 12.57 millimeters him 0.960 0.490 0.235 0.210 0.085 0.200 0.720 0.004 0.405 0.150 0.150 0.115 0.120 0.4/0 max 0.990 0.510 0.300 0.220 0.120 0.210 0.730 0.006 0.440 0.160 0.170 0.130 0.130 0.495 style 1: pin1. emitter 2. collector 3. emitter 4. base
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