AC857BSQ-7

Bipolar Transistor Arrays Overview

The AC857BSQ-7 is a dual PNP small signal surface mount transistor designed for automotive applications. It operates with a collector-emitter voltage of -45 V and a collector-base voltage of -50 V. The device supports a continuous collector current of -100 mA and a peak current of -200 mA. Power dissipation is rated at 200 mW, with a thermal resistance of 625 °C/W. The DC current gain ranges from 220 to 475 at -2.0 mA. The transition frequency is 100 MHz. Operating temperature spans from -55°C to +150°C. It utilizes an SOT363 package.

Bipolar Transistor Arrays Feature Summary

• Dual PNP configuration in an ultra-small surface mount package suitable for automated insertion
• Qualified to AEC-Q101 standards for high reliability and PPAP capable
• Totally lead-free and fully RoHS compliant with halogen and antimony free construction

Bipolar Transistor Arrays Applications

• Automotive switching circuits
• Audio frequency (AF) amplifier stages

Bipolar Transistor Arrays Procurement Notes

Verify the component against the official Diodes Incorporated datasheet DS39495 Rev. 1-2. Confirm the marking code '2C8' matches the specific batch. Ensure the supplier provides traceability documentation required for automotive PPAP capabilities. Check that the packaging meets the specified reel size and tape width parameters.

Bipolar Transistor Arrays Selection Notes

Select this component when a matched pair of PNP transistors is required in a compact SOT363 footprint. The dual configuration ensures consistent electrical characteristics between the two internal transistors. Verify that the -45 V rating aligns with the circuit's maximum voltage requirements. Consider the 200 mW power dissipation limit for thermal management in the final assembly.

Bipolar Transistor Arrays Part Context

This part belongs to the AC857 series of dual PNP transistors manufactured by Diodes Incorporated. It is specifically engineered to meet the stringent environmental and reliability requirements of the automotive industry. The SOT363 package allows for space-constrained designs while maintaining robust performance under varying temperature conditions typical in vehicle electronics.

Bipolar Transistor Arrays Replacement Considerations

Direct replacements must match the dual PNP configuration, SOT363 package, and -45V/-50V voltage ratings. Verify that any substitute also holds AEC-Q101 qualification if used in automotive contexts. Ensure the replacement maintains similar hFE and saturation voltage characteristics to preserve circuit functionality.