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The BFG97 is an NPN silicon planar epitaxial transistor housed in a plastic SOT-223 envelope, designed for wideband amplifier applications up to 5 GHz. It features excellent output voltage capabilities and is primarily intended for MATV systems. The device incorporates small emitter structures with integrated emitter-ballasting resistors to ensure high output voltage at low distortion levels. A PNP complement, the BFG31, is available. The component is discontinued but remains documented for historical reference.
This component is officially marked as No Longer Manufactured by NXP Semiconductors. Specifications are provided for historical reference only. Verification of current availability requires direct contact with NXP support or authorized distributors, as standard ordering channels may not stock this discontinued part number.
Designers should consider the discontinuation status when selecting this component for new products. The BFG97 is specified for 5 GHz wideband use. Engineers must verify if alternative active components from the same manufacturer or third parties meet the required electrical specifications and thermal profiles for modern designs.
The BFG97 belongs to NXP's portfolio of RF transistors utilizing silicon planar epitaxial technology. It is often referenced alongside its PNP complement, the BFG31. The device was historically significant for MATV and wideband amplification before being phased out of production, with documentation retained for legacy system maintenance.
Publicly confirmed substitute part numbers are not explicitly listed in the provided source material. Designers should consult NXP support for recommended alternatives or evaluate other NXP wideband transistors that match the SOT-223 footprint and 5 GHz performance requirements.