FMB3946

Overview

The FMB3946 is a complementary dual transistor array manufactured by onsemi, integrating NPN and PNP bipolar junction transistors into a single SuperSOT-6 surface-mount package. Designed for general-purpose amplification and switching applications, the device supports a useful dynamic range extending to 100 mA as a switch and 100 MHz as an amplifier. The component utilizes Process 23 and 66 technologies, providing a compact solution for circuits requiring matched or complementary transistor pairs in limited board space.

Feature Summary

• Integrates complementary NPN and PNP transistors in a single surface-mount package
• Optimized for general-purpose amplification with high-frequency response up to 100 MHz
• Capable of handling switching currents up to 100 mA

Applications

• General-purpose amplification circuits
• High-speed switching applications
• Complementary driver stages

Part Context

This component belongs to the family of complementary dual transistors from Fairchild Semiconductor, now part of onsemi. It serves as a compact alternative to discrete NPN and PNP pairs, specifically referencing characteristics sourced from Process 23 and 66. Related components include the FFB3904 (NPN) and FFB3906 (PNP) for individual device specifications.

Replacement Considerations

Equivalent parts include the DST3946DPJ from Diodes Incorporated, which offers a complementary NPN/PNP configuration in a surface mount package. Designers should verify pinout compatibility and electrical parameters against the specific process technology requirements.