FMA3AT148

Overview

The FMA3AT148 is a complex transistor featuring two integrated PNP transistors within an SMT5 (SC-74A) surface-mount package. It operates with a collector-emitter voltage of -50V and a continuous collector current of -0.1A per element. The device includes built-in input resistors rated at 1kΩ for the first transistor and 4.7kΩ for the second. Maximum power dissipation is specified at 0.3W, with a storage temperature range spanning from -55°C to 150°C. This component is classified as a standard-level product suitable for general electronic applications.

Feature Summary

• Integrates dual PNP transistors into a single ultra-compact surface-mount footprint
• Includes internal base input resistors to simplify circuit design and reduce component count
• Engineered for high-frequency operations including differential amplifier circuits and crystal oscillators

Applications

• Differential amplifier circuits
• High-frequency crystal oscillator circuits
• General-purpose switching applications in consumer electronics

Procurement Notes

Verify the specific suffix T148 to confirm the tape-and-reel packaging configuration containing 3000 units per reel. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design reviews account for the non-automotive classification when selecting components for vehicle-mounted systems.

Selection Notes

Select this component when space constraints require dual PNP functionality in a SC-74A package. Compare input resistance values against circuit requirements, noting the asymmetrical 1kΩ and 4.7kΩ resistor configuration. Evaluate thermal management needs relative to the 0.3W power dissipation limit in the small outline package.

Part Context

This part belongs to the FMA3A series of complex transistors manufactured by ROHM Semiconductor. The series focuses on providing multiple transistor functions in minimal board space. The FMA3AT148 specifically utilizes the SMT5 package code, distinguishing it from other variants that may offer different polarities or resistance values within the same family.

Replacement Considerations

The DTA143T is identified as an equivalent single-part alternative. Designers should verify pinout compatibility and electrical parameter alignment when substituting this discrete component for the integrated complex transistor solution.