FMMTH10TA

Overview

The FMMTH10TA is an NPN silicon planar RF transistor manufactured by Diodes Incorporated, housed in a compact SOT-23 surface-mount package. Designed for high-frequency applications, it features a transition frequency (fT) of 650 MHz and low noise characteristics with a typical noise figure under 5 dB at 500 MHz. The device supports a continuous collector current of 25 mA and peak pulse currents up to 50 mA. It operates within a temperature range of -55°C to +150°C and dissipates up to 330 mW of power at 25°C ambient conditions.

Feature Summary

• High transition frequency capability optimized for radio frequency signal processing
• Low noise performance suitable for sensitive amplification stages
• Compact SOT-23 packaging designed for space-constrained surface mount layouts

Applications

• RF amplifier circuits requiring high gain and low noise figures
• High-frequency oscillator designs operating near the transition frequency limit
• Signal conditioning stages in communication equipment

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm datasheet revision status matches design requirements. Ensure storage and handling procedures comply with moisture sensitivity levels for surface mount devices. Validate that the specific tape and reel configuration meets automated assembly line specifications.

Selection Notes

Select this component when circuit designs demand high-frequency operation exceeding standard general-purpose transistors. Evaluate thermal management capabilities given the 330 mW power dissipation limit in small packages. Compare noise figure specifications against system sensitivity requirements to ensure adequate signal-to-noise ratio preservation in RF paths.

Part Context

This part belongs to Diodes Incorporated's portfolio of silicon planar RF transistors engineered for high-speed switching and amplification. The FMMTH series utilizes planar technology to achieve consistent electrical characteristics across production batches while maintaining compatibility with standard surface mount manufacturing processes.

Replacement Considerations

Direct substitutes include other NPN RF transistors offering similar fT ratings and SOT-23 footprints. Verify pinout compatibility and thermal resistance values before implementation. Cross-reference maximum voltage ratings to ensure replacement components meet or exceed original design margins.