FMW1T148

Overview

The FMW1T148 is an RF small signal bipolar transistor manufactured by ROHM Semiconductor. It features a dual NPN configuration housed in a surface-mount SMT6 package with six terminals. The device supports a maximum collector current of 0.05 A and operates with a collector-emitter voltage up to 11 V. Key electrical characteristics include a minimum DC current gain (hFE) of 27 and a base-collector capacitance of 1.55 pF. It is designed for high-temperature environments, with a maximum operating temperature of 150 °C.

Feature Summary

• Dual-element NPN structure optimized for RF applications
• High thermal stability supporting operation up to 150 °C
• Compact surface-mount packaging for automated assembly

Applications

• RF signal amplification circuits
• Small-signal processing in communication devices
• General-purpose switching applications requiring high temperature tolerance

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with ROHM Semiconductor or authorized distributors before procurement. Confirm that the SMT6 package dimensions align with your PCB footprint requirements. Ensure that the 150 °C maximum junction temperature rating meets your system's thermal management design constraints.

Selection Notes

Select this component when a dual NPN configuration is required for RF signal handling within a compact form factor. The low base-collector capacitance makes it suitable for high-frequency applications. Consider the 11 V collector-emitter voltage limit and 0.05 A current capacity to ensure adequate headroom for the intended circuit design.

Part Context

The FMW1T148 belongs to ROHM's family of RF small signal transistors, which includes variants such as the FMW6, FMW8, and FMW10. These components share similar design philosophies focusing on miniaturization and performance in radio frequency environments. The part utilizes silicon technology and is packaged in standard surface-mount formats compatible with modern manufacturing processes.

Replacement Considerations

Publicly confirmed substitute part numbers for the FMW1T148 are not available in the provided documentation. Engineers should consult ROHM Semiconductor for official cross-reference recommendations or evaluate other dual NPN RF transistors from the same manufacturer series based on pin compatibility and electrical specifications.