SD1728

SD1728 (TH430) RF & MICROWAVE TRANSISTORS HF SSB APPLICATIONS . . . . . . . OPTIMIZED FOR SSB 30 MHz 50 VOLTS IMD − 30 dB GOLD METALLIZATION COMMON EMITTER P OUT = 250 W PEP WITH 14.5 dB GAIN .550 4LFL (M177) epoxy sealed ORDER CODE SD1728 BRANDING TH430 PIN CONNECTION DESCRIPTION The SD1728 is a 50 V epitaxial silicon NPN planar transistor designed primarily for SSB and VHF communications. This device utilizes emitter ballasting for improved ruggedness and reliability. ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit 1. Collector 2. Emitter 3. Base 4. Emitter VCBO VCEO VEBO IC PDISS TJ T STG Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature 110 55 4.0 40 330 +200 − 65 to +150 V V V A W °C °C THERMAL DATA RTH(j-c) November 1992 Junction-Case Thermal Resistance 0.4 °C/W 1/9 SD1728 (TH430) ELECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Test Conditions Value Min. Typ. Max. Unit BVCES BVCEO BVEBO I CEO ICES hFE DYNAMIC Symbol I C = 200mA I C = 200mA I E = 20mA VCE = 30V VCE = 60V VCE = 6V VBE = 0V IB = 0mA IC = 0mA IE = 0mA IE = 0mA IC = 10A 110 55 4.0 — — 15 — — — — — — — — — 10 10 45 V V V mA mA — Test Conditions Value Min. Typ. Max. Unit POUT G P* IMD* η c* COB Note: f = 30 MHz POUT = 250 W PEP POUT = 250 W PEP POUT = 250 W PEP f = 1 MHz VCC = 50 V VCC = 50 V VCC = 50 V VCC = 50 V VCB = 50 V ICQ = 150 mA ICQ = 150 mA ICQ = 1...