2SA953-A

Single Bipolar Transistors Overview

The 2SA953-A is a PNP bipolar junction transistor (BJT) manufactured by Renesas Electronics Corporation. It is designed for through-hole mounting in TO-92 packages. The device features a collector-emitter voltage rating of 60 V and a continuous collector current capacity of 300 mA. It operates with a transition frequency of 100 MHz and dissipates up to 600 mW of power. The component supports lead-free compliance and is restricted to existing customers who have already adopted this product line.

Single Bipolar Transistors Feature Summary

• PNP silicon transistor configuration optimized for general-purpose switching applications
• Through-hole TO-92 package design facilitating standard PCB integration
• Lead-free manufacturing process ensuring environmental compliance

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Low-power signal amplification stages
• Consumer electronic device control logic

Single Bipolar Transistors Procurement Notes

This component is exclusively available to customers who have previously adopted the 2SA953 series. New inquiries may not be fulfilled as production is limited to legacy support. Verify adoption status with the supplier before initiating orders. Ensure compatibility with existing designs, as availability is not guaranteed for new projects. Contact Renesas sales representatives directly to confirm eligibility and supply chain constraints specific to this discontinued or restricted part number.

Single Bipolar Transistors Selection Notes

Select the 2SA953-A only if the design requires a PNP BJT with 60 V breakdown and 300 mA current handling in a TO-92 package. Consider the 100 MHz frequency limit for high-speed applications. Verify that the 600 mW power dissipation meets thermal requirements. This part is suitable for low-power consumer electronics where through-hole mounting is specified. Evaluate alternative components if new production volume is required, as this part is restricted to existing adopters.

Single Bipolar Transistors Part Context

The 2SA953-A belongs to Renesas' Bipolar Power Transistors family, which includes devices rated for high temperatures up to 175°C and low saturation voltages. This specific model represents a legacy PNP transistor variant. Renesas continues to support this component for customers with established implementations, reflecting a strategy to maintain supply for critical legacy systems while focusing new development on advanced microcontrollers and power ICs.

Single Bipolar Transistors Replacement Considerations

No public substitute part numbers are documented. The component is supported only for existing customers. Designers must verify direct pin-compatible alternatives independently, as no official cross-reference is provided by the manufacturer for this restricted part.