RM SD1446 Replacement Transistor NPN

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The SD1446 transistor is a Class C, NPN planar silicon RF transistor designed for land mobile transmitter applications. It is capable of withstanding high VSWR (Voltage Standing Wa ve Ratio) conditions due to its emitter ballasting. The part has been declared obsolete by its original manufacturer, STMicroelectronics, and is now primarily available as "New Old Stock" (NOS) or as compatible replacements. The "RM" designation indicates a version produced by RM Italy According to various datasheets and product pages, the below specifications are for the SD1446 transistor. Specifications: Operating frequency: 50 MHz Operating voltage: 12.5 V Power output: 70 W (minimum) with 10 dB gain Power dissipation: 183 W Collector-base voltage VCBO: 36 V Collector-emitter voltage VCEO: 18 V Device current IC: 12.0 A Efficiency: 55% Metallization: Gold Package: M113 (flange mount) Replacement RF transistor for the following models: KL 200KL 200 PKL 300KL 300 PKL 405KL 405 VKL 505KL 505 VKL 506HLA 150 BLACKHLA 150V BLACKHLA 300 V BLACK Please Note: Some models may have 2 or more in depending on the model and power of the amplifier. Package: 1x RM SD1446 Replacement Transistor NPN Show more