TN22-1500H

Scrs Overview

The TN22-1500H is a fluorescent tube lamp starter SCR developed by STMicroelectronics. It is designed for use in electronic starter circuits, providing high energy striking characteristics with low triggering power when used with sensitive SCRs. The device features a high clamping voltage structure rated between 1200 V and 1500 V. It supports direct drive from the line with a low gate triggering current of less than 1.5 mA. A high holding current exceeding 175 mA ensures high striking energy, contributing to extended life time and reliability of fluorescent tube lamps.

Scrs Feature Summary

• Provides high energy striking characteristics with low triggering power for fluorescent tube lamp electronic starters
• Features a high clamping voltage structure ranging from 1200 V to 1500 V
• Supports direct drive from the line with low gate triggering current below 1.5 mA
• Ensures high striking energy through high holding current exceeding 175 mA

Scrs Applications

• Fluorescent tube lamp electronic starter circuits
• High reliability lighting control systems requiring extended lamp life
• Direct line-driven starter applications

Scrs Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm exact electrical ratings and package type. Ensure compatibility with existing sensitive SCR components in the starter circuit design. Confirm that the 1200 V to 1500 V clamping range meets the system requirements. Check for any updated application notes regarding soldering or handling procedures for this component.

Scrs Selection Notes

Select the TN22-1500H for applications requiring reliable ignition of fluorescent lamps with minimal gate drive power. Its low gate triggering current allows direct connection to line sources without additional driving circuitry. The high holding current capability ensures robust striking energy. Consider the high clamping voltage rating for protection within the starter circuit environment.

Scrs Part Context

The TN22 series belongs to STMicroelectronics' portfolio of specialized thyristors designed for lighting applications. Unlike general-purpose SCRs, these devices are optimized for the specific transient conditions found in fluorescent lamp starters. They replace traditional mechanical starters, offering improved performance and longevity for lighting installations.

Scrs Replacement Considerations

Consult official STMicroelectronics substitution guides for verified equivalents. Generic SCRs may not match the specific low gate current and high holding current characteristics required for proper lamp ignition.