FFB3906

Overview

The FFB3906 is a PNP multi-chip general-purpose amplifier manufactured by onsemi. It integrates two discrete PNP bipolar junction transistors within a single SC-70-6 surface-mount package. The device operates with a maximum collector-emitter voltage of -40 V and a continuous collector current rating of -200 mA per transistor. Total device power dissipation is limited to 300 mW at 25°C ambient temperature, with a thermal resistance from junction to ambient of 415 °C/W. The component supports an operating and storage junction temperature range from -55°C to +150°C.

Feature Summary

• Dual PNP transistor configuration integrated into a compact SC-70-6 package for space-constrained designs.
• Designed for general-purpose amplifier and switching applications across a wide collector current range.
• Capable of handling high junction temperatures up to 150°C for robust operation in demanding environments.

Applications

• General-purpose signal amplification circuits
• Low-power electronic switching applications
• Consumer electronics requiring compact dual-transistor solutions

Procurement Notes

Verify the specific ordering suffix and tape-and-reel specifications directly with authorized distributors or the manufacturer before procurement. Confirm that the SC-70-6 land pattern matches the recommended dimensions provided in the datasheet physical dimensions section to ensure proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a dual PNP transistor solution is required in a small form factor. Ensure the application current does not exceed the -200 mA limit per die and that the total power dissipation remains within the 300 mW constraint. Consider the higher thermal resistance compared to larger packages when designing heat management strategies.

Part Context

The FFB3906 belongs to a family of multi-chip general-purpose amplifiers that includes the FMB3906 (SuperSOT-6) and MMPQ3906 (SOIC-16). While sharing identical electrical characteristics and internal silicon structures, these variants differ primarily in their physical packaging and pinout configurations to suit different board layout requirements.

Replacement Considerations

The FMB3906 serves as a direct functional replacement offering identical electrical performance but housed in a SuperSOT-6 package. Designers must verify footprint compatibility when substituting between the SC-70-6 and SuperSOT-6 packages.