FMA10AT148

Overview

The FMA10AT148 is a dual PNP digital transistor from ROHM Semiconductor, designed for surface-mount applications. It features an integrated pre-bias network within a compact SOT-25-5 package. Key electrical parameters include a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device offers a typical input resistance of 10 kOhms and supports a maximum operating frequency of 250 MHz. Power dissipation is rated at 300 mW, with a minimum DC current gain (hfe) of 100 under specified conditions.

Feature Summary

• Integrates dual PNP transistors with built-in bias resistors to simplify circuit design
• Optimized for high-speed switching with a transition frequency of 250 MHz
• Compact SOT-25-5 surface mount package suitable for space-constrained layouts

Applications

• General-purpose switching circuits in consumer electronics
• Driver stages for logic interfaces and signal processing
• Battery-powered devices requiring efficient power management

Procurement Notes

Verify the specific suffix 'T148' against the official ROHM datasheet to confirm resistor values and pinout configuration. Ensure the ordering part number matches the required tolerance and thermal characteristics. Cross-reference the RoHS compliance status with the latest manufacturer documentation before finalizing procurement orders.

Selection Notes

Select this component when a dual PNP configuration with integrated biasing is required for high-frequency applications. Consider the 50 V voltage rating and 100 mA current limit relative to the load requirements. Evaluate the 300 mW power dissipation capability against the expected thermal environment and PCB layout constraints.

Part Context

This component belongs to the FMA5A/FMA10A series of general-purpose dual digital transistors. These devices are engineered to replace discrete transistor-resistor combinations, reducing board space and assembly costs. The series is widely used in portable electronics and industrial control systems where reliable switching performance is essential.

Replacement Considerations

Compatible substitutes include the FMG3AT148 (dual NPN variant) or other ROHM dual PNP digital transistors within the same voltage and current ratings. Verify pin compatibility and internal resistor ratios when substituting to ensure circuit functionality remains unchanged.