STD815CP40

Overview

The STD815CP40 is a hybrid complementary pair of power bipolar transistors housed in a dual island DIP-8 package. It utilizes high voltage multi-epitaxial planar technology for high switching speeds and medium voltage capability. The NPN transistor offers a collector-emitter voltage (VCEO) of 400 V, while the PNP variant provides 500 V. Both devices support a continuous collector current of 1.5 A with peak currents up to 3 A. Key electrical characteristics include low saturation voltages, such as VCE(sat) of 0.5 V for NPN at 0.5 A, and fast switching times with resistive load fall times as low as 0.2 µs.

Feature Summary

• Complementary NPN/PNP transistor pair integrated into a single component
• Dual island DIP-8 package design enabling separated terminals for assembly flexibility
• High voltage multi-epitaxial planar technology optimized for high switching speeds

Applications

• Compact fluorescent lamp (CFL) circuits operating on 220 V mains

Procurement Notes

Verify the specific ordering code STD815CP40 against official STMicroelectronics documentation to ensure correct part identification. Confirm that the DIP-8 tube packing matches project requirements. Cross-reference thermal resistance values and absolute maximum ratings with the latest datasheet revision to guarantee compatibility with existing circuit designs and safety standards.

Selection Notes

Select this component when a compact solution for mains-powered lighting is required. The dual island package facilitates thermal management and layout optimization compared to standard configurations. Ensure the application operates within the specified junction temperature limits and respects the peak current constraints during transient conditions to maintain reliability and performance over the product's lifecycle.

Part Context

This device belongs to STMicroelectronics' range of complementary transistor pairs designed for power applications. It is specifically engineered to replace discrete component solutions in space-constrained environments. The integration of matched NPN and PNP transistors reduces board space and simplifies the design process for high-frequency switching applications common in consumer electronics and lighting systems.

Replacement Considerations

No public confirmed substitute part numbers are documented in the provided datasheet.