PRF957

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D102 PRF957 UHF wideband transistor Product specification Supersedes data of 1999 Mar 01 1999 Jul 23 Philips Semiconductors Product specification UHF wideband transistor FEATURES Small size Low noise Low distortion High gain Gold metallization ensures excellent reliability. APPLICATIONS Communication and instrumentation systems. DESCRIPTION Silicon NPN transistor in a surface mount 3-pin SOT323 package. The transistor is primarily intended for wideband applications in the GHz-range in the RF front end of analog and digital cellular telephones, cordless phones, radar detectors, pagers and satellite TV-tuners. 1 Top view Marking code: W2. 2 MAM062 PRF957 PINNING PIN 1 2 3 base emitter collector DESCRIPTION handbook, halfpage 3 3 1 2 Fig.1 Simplified outline (SOT323) and symbol. QUICK REFERENCE DATA SYMBOL Cre fT GUM NF Ptot Rth j-s Note 1. Ts is the temperature at the soldering point of the collector pin. PARAMETER feedback capacitance transition frequency maximum unilateral power gain noise figure total power dissipation thermal resistance from junction to soldering point CONDITIONS IC = 0; VCB = 6 V; f = 1 MHz IC = 30 mA; VCE = 6 V; fm = 1 GHz IC = 30 mA; VCE = 6 V; Tamb = 25 °C; f = 1 GHz ΓS = Γopt; IC = 5 mA; VCE = 6 V; f = 1 GHz Ts = 60 °C; note 1 Ptot = 270 mW MIN. − − − − − − TYP. 0.4 8.5 15 1.3 − − MAX. − − − − 270 425 UNIT pF GHz dB dB mW K/W 1999 Jul 23 2 Philips Semiconductors Product specifi...