L6221CD013TR

Overview

The L6221CD013TR is a dual BJT array manufactured by STMicroelectronics, featuring four NPN Darlington transistors in a single surface-mount package. It provides a maximum collector current of 1.2A and a collector-emitter breakdown voltage of 60V. The component is housed in a 20-SOIC (7.50mm wide) package with a standard tape and reel configuration. It operates within a junction temperature range of -40°C to 150°C and complies with RoHS3 standards.

Feature Summary

• Integrates four NPN Darlington pairs for high-gain switching applications
• Supports surface mount installation on printed circuit boards
• Rated for industrial operating temperatures up to 150°C

Applications

• High-current relay driver circuits
• Solid-state load switching systems
• Interface logic to power stage conversion

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm pinout compatibility and thermal characteristics. Confirm that the 20-SOIC footprint matches the target PCB design. Check for end-of-life status or alternative sourcing requirements as availability may vary across distributors.

Selection Notes

Select this component when a compact solution for driving multiple high-current loads from low-power logic signals is required. Ensure the application voltage does not exceed the 60V rating and that heat dissipation capabilities of the 20-SOIC package are sufficient for the expected duty cycle and ambient conditions.

Part Context

This part belongs to the L6221 series of discrete semiconductor products. It serves as a specialized transistor array designed to replace multiple individual transistors, reducing board space and assembly complexity in motor control and power management designs.

Replacement Considerations

Consult official substitution guides for equivalent Darlington arrays. Verify pin-to-pin compatibility and electrical ratings before replacing with generic alternatives.