MMST918T146

Overview

The MMST918T146 is a single NPN bipolar junction transistor manufactured by ROHM Semiconductor. It features a maximum collector-emitter voltage of 15V and a continuous collector current rating of 50A. The device operates in an SMT3 (SOT-23-3) surface-mount package with a power dissipation capacity of 200mW. It offers a transition frequency of 600MHz, suitable for high-speed switching applications.

Feature Summary

• High-current capability with a 50A continuous collector current rating
• High-frequency performance characterized by a 600MHz transition frequency
• Compact surface-mount construction in a three-terminal SMT3 package

Applications

• RF signal amplification circuits
• High-speed digital switching interfaces
• General-purpose transistor arrays requiring high current drive

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status prior to integration. Ensure storage conditions adhere to moisture sensitivity level specifications. Validate pinout alignment with design schematics to prevent installation errors during assembly processes.

Selection Notes

Select this component when designs require significant current handling within a small footprint. The 15V voltage limit dictates suitability for low-voltage logic systems. Evaluate thermal management requirements due to the 200mW power dissipation constraint in the compact package configuration.

Part Context

This part belongs to the MMST series of general-purpose and RF transistors from ROHM Semiconductor. It utilizes silicon technology for reliable operation. The SMT3 package provides a standardized mounting solution compatible with automated surface-mount assembly equipment used in modern electronics manufacturing.

Replacement Considerations

• MMST918