BLW77

DISCRETE SEMICONDUCTORS DATA SHEET BLW77 HF/VHF power transistor Product specification August 1986 Philips Semiconductors Product specification HF/VHF power transistor DESCRIPTION N-P-N silicon planar epitaxial transistor intended for use in class-AB or class-B operated high power transmitters in the h.f. and v.h.f. bands. The transistor presents excellent performance as a linear amplifier in the h.f. band. It is resistance stabilized and is guaranteed to withstand severe load mismatch conditions. Transistors are delivered in matched hFE groups. The transistor has a 1⁄2" flange envelope with a ceramic cap. All leads are isolated from the flange. BLW77 QUICK REFERENCE DATA R.F. performance up to Th = 25 °C MODE OF OPERATION s.s.b. (class-AB) c.w. (class-B) Note 1. At 130 W P.E.P. VCE V 28 28 IC(ZS) A 0,1 − f MHz 1,6 − 28 87,5 PL W 15 − 130 (P.E.P.) 130 Gp dB > 12 typ. 7,5 η % > 37,5(1) typ. 75 d3 dB < −30 − PIN CONFIGURATION PINNING - SOT121B. PIN DESCRIPTION collector emitter base emitter handbook, halfpage 4 3 1 2 3 4 1 2 MLA876 Fig.1 Simplified outline. SOT121B. PRODUCT SAFETY This device incorporates beryllium oxide, the dust of which is toxic. The device is entirely safe provided that the BeO disc is not damaged. August 1986 2 Philips Semiconductors Product specification HF/VHF power transistor RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Collector-emitter voltage (VBE = 0) peak value Collector-emitter voltage (open ba...