BSR31-QF

Single Bipolar Transistors Overview

The BSR31-QF is an NPN general-purpose transistor manufactured by Nexperia USA Inc. It belongs to the BSR31 series and is designed for low-power switching and amplification applications. The device features a maximum collector-emitter voltage of 45 V and a continuous collector current of 100 mA. It is housed in a compact SOT-323 (SC-70) surface-mount package, suitable for space-constrained designs. The component operates within a junction temperature range up to 150 °C and meets automotive reliability standards.

Single Bipolar Transistors Feature Summary

• Automotive-grade qualification compliant with AEC-Q101 standards
• Compact leadless ultra-small SMD plastic package design
• Low package height facilitating dense board layouts
• Suitable for general-purpose switching and amplification tasks

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Amplification stages in low-power electronics
• Mobile device internal circuitry
• Automotive electronic modules requiring qualified components

Single Bipolar Transistors Procurement Notes

Verify the specific suffix and tape-and-reel specifications against the official Nexperia datasheet before ordering. Confirm that the AEC-Q101 qualification status aligns with your project's automotive requirements. Ensure the SOT-323 footprint matches your PCB layout constraints. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Single Bipolar Transistors Selection Notes

Select this component when automotive reliability is required alongside a minimal footprint. The BSR31-QF offers performance comparable to larger packages like SOT-23 but with reduced height. Consider its 45 V rating and 100 mA current capacity for standard logic-level switching or small-signal amplification needs in constrained environments.

Single Bipolar Transistors Part Context

This part is part of Nexperia's portfolio of general-purpose transistors engineered for modern electronics. The BSR31 series provides a balance of electrical performance and physical size. The QF suffix typically denotes specific packaging or automotive qualification variants within the broader BSR31 family, ensuring consistency in supply chain and quality standards for critical applications.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other AEC-Q101 qualified NPN transistors in SOT-323 packages from Nexperia, such as the BC847AW or similar series members. Verify pinout compatibility and electrical parameters like hFE and Vce(sat) before substitution. Non-automotive equivalents may lack the required reliability certifications.