FMA8AT148

Overview

The FMA8AT148 is a dual pre-biased NPN transistor array manufactured by ROHM Semiconductor. It features two independent NPN transistors integrated into a single SMT5 (SOT-25) package with five terminals. The device supports a maximum collector-emitter voltage of 50V and a continuous collector current of 100mA. Key electrical parameters include a minimum DC current gain (hFE) of 80 at specified test conditions, a power dissipation rating of 300mW, and a maximum operating frequency of 250MHz. The component is designed for surface mount technology applications.

Feature Summary

• Integrates two NPN transistors with built-in bias resistors in a compact SMT5 package
• Provides high-speed switching capability with a maximum operating frequency of 250MHz
• Offers robust performance with a 50V collector-emitter voltage rating

Applications

• General-purpose digital switching circuits
• Interface driver stages in consumer electronics
• Signal processing applications requiring compact dual-transistor solutions

Procurement Notes

Verify the specific datasheet version and ordering suffixes to ensure compatibility with design requirements. Confirm that the SMT5 package dimensions align with PCB footprint specifications. Check for any lifecycle status updates, such as 'Not Recommended for New Designs' (NRND), which may impact long-term supply availability. Ensure compliance with RoHS directives and moisture sensitivity levels before integration.

Selection Notes

Select this component when a dual NPN configuration with integrated biasing is required in a small form factor. Consider the 50V voltage rating and 100mA current limit against circuit demands. Evaluate the 250MHz frequency response for high-speed application suitability. Compare thermal dissipation characteristics within the SMT5 package against expected power loads.

Part Context

The FMA8AT148 belongs to ROHM's family of pre-biased bipolar transistors, designed to simplify circuit design by integrating base resistors. These devices reduce component count and board space compared to discrete transistor-resistor combinations. The SMT5 packaging allows for automated surface mount assembly, supporting high-volume manufacturing processes in modern electronic equipment.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data through official manufacturer channels or authorized distributors before considering alternative components.