BC846A-AQ

Overview

The BC846A-AQ is an automotive-grade NPN bipolar junction transistor manufactured by Diotec Semiconductor. It features a maximum collector-emitter voltage of 65 V and a continuous collector current of 100 mA. The device operates within a junction temperature range of -55°C to +150°C and dissipates up to 250 mW. Key electrical parameters include a transition frequency of 300 MHz, a minimum DC current gain of 110 at 2 mA and 5 V, and a maximum collector-base cutoff current of 15 nA. It is housed in a surface-mount SOT-23 (TO-236) package.

Feature Summary

• Automotive qualified under AEC-Q101 standards for enhanced reliability
• High-frequency operation with a 300 MHz transition frequency
• Wide thermal operating range from -55°C to +150°C

Applications

• Automotive electronic control units
• General-purpose switching circuits
• Signal amplification in harsh environments

Procurement Notes

Verify the specific suffix and manufacturer documentation to confirm AEC-Q101 compliance and exact gain binning. Ensure the ordering information matches the required SOT-23 package variant. Cross-reference the datasheet for precise saturation voltage and leakage current limits relevant to your circuit design constraints.

Selection Notes

Select this component when automotive qualification is mandatory for NPN switching applications requiring high-speed performance. The 300 MHz bandwidth supports faster signal processing compared to standard general-purpose transistors. Verify that the 100 mA current rating and 65 V voltage limit align with the specific load requirements of the target application.

Part Context

This part belongs to the BC846 series of small-signal NPN transistors produced by Diotec Semiconductor. It is designed as an automotive-grade alternative to standard commercial variants, offering robust performance in demanding vehicular environments while maintaining compatibility with common surface-mount footprints.

Replacement Considerations

BC846A is a parameter-equivalent substitute.