SD1894

www.DataSheet4U.com SD1894 RF & MICROWAVE TRANSISTORS SATELLITE COMMUNICATIONS APPLICATIONS . . . . . . CLASS C 1.6 GHz COMMON BASE REFRACTORY/GOLD METALLIZATION EFFICIENCY = 50% MIN. POUT = 4.5 W MIN. WITH 10 dB GAIN .250 x .320 2LFL (M170) epoxy sealed ORDER CODE SD1894 BRANDING SD1894 PIN CONNECTION DESCRIPTION The SD1894 is a common base silicon NPN bipolar DataSheet4U.com device optimized for 1.6 GHz SATCOM applications. The SD1894 offers superior gain and collector efficiency, making it an ideal choice for Class C power amplifiers used in portable as well as fixed SATCOM terminals. 1. Collector 2. Emitter 3. Base DataShee ABSOLUTE MAXIMUM RATINGS (T case = 25°C) Symbol Parameter Valu e Unit VCBO VCES VEBO IC PDISS TJ TSTG Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature 45 45 3.0 375 12.5 +200 − 65 to +150 V V V mA W °C °C THERMAL DATA RTH(j-c) DataSheet4U.com February 4, 1997 1/4 Junction-Case Thermal Resistance 14.0 °C/W DataSheet4U.com DataSheet 4 U .com www.DataSheet4U.com SD1894 ELECTRICAL SPECIFICATIONS (T case = 25°C) STATIC Symbol Test Conditions Min. Value Typ. Max. Unit BVCBO BVCES BVEBO ICBO hFE IC = 1 mA IC = 1 mA IE = 1 mA VCB = 28 V VCE = 5 V IE = 0 mA VBE = 0 V IC = 0 mA IE = 0 mA IC = .2 A 45 45 3.0 — 15 — — — — — — — — .25 150 V V V mA — DYNAMIC Symbol Test Conditions Min. Value Typ. Max. Unit PIN ηc PG f = 1650 MHz f = 1650 MHz f = ...