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The SMMBTH10-4LT3G is an NPN surface-mount digital transistor manufactured by onsemi, designed for general-purpose VHF and UHF applications. It features a maximum collector-emitter voltage (VCEO) of 25 V and a collector-base voltage (VCBO) of 30 V. The device has a minimum DC current gain (hFE) of 60 and a transition frequency (fT) of 800 MHz. Power dissipation is rated at 225 mW. It operates within a temperature range of -55°C to +150°C and is housed in a compact SOT-23-3 package.
Verify the specific suffix '4L' against official datasheets to confirm internal resistor network configuration, as this variant differs from standard single-transistor packages. Ensure compatibility with SOT-23-3 footprints during PCB layout. Cross-reference RoHS compliance documentation for material composition requirements before finalizing procurement orders.
Select this component when high-frequency operation near 800 MHz is required alongside integrated digital switching functionality. The low power dissipation rating of 225 mW necessitates careful thermal management in dense layouts. Compare hFE specifications against circuit biasing requirements to ensure adequate gain margins for reliable switching performance in VHF environments.
This part belongs to the MMBTH10L series of NPN digital transistors. It shares the SOT-23-3 form factor with other small-signal devices but distinguishes itself through optimized RF characteristics. The series targets applications demanding both switching speed and high-frequency stability in minimal space constraints.
Public confirmed substitute part numbers are not available in the provided documentation.