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NR421 Datasheet VHF amplifier / FM converter transistor

Manufacturer: National Semiconductor (now Texas Instruments)

Overview

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Key Features

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  • 0.65pF, typical f~edback capacitance for excellent RF stability.
  • Guaranteed collector.
  • base time constant and RF output resistance.
  • 150mV typical VCE (sat) charac:teristics at Ic = 10 mA, and IB = 0.5 mA.
  • 2 dB typical noise figure at 200 MHz.
  • "Epoxy B" packaging concept for excelient reliability.