TCR22-6

Scrs Overview

The Littelfuse TCR22-6 is a silicon-controlled rectifier (SCR) from the TCR22-X series, designed for sensitive gate triggering applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (IT(RMS)) capability of 1 A. The device exhibits a maximum forward voltage drop (VF) of 1.5 V at rated current. Key gate parameters include a maximum gate trigger voltage (VGT) of 800 mV and a maximum gate trigger current (IGT) of 200 µA. The component operates within a temperature range of -40°C to +125°C and utilizes a through-hole TO-92 package.

Scrs Feature Summary

• Sensitive gate architecture enabling reliable triggering with low gate current requirements
• High thermal stability supporting operation in extreme ambient temperatures up to 125°C
• Robust construction with glass-passivated junctions for long-term parameter stability

Scrs Applications

• AC phase control circuits requiring precise firing angles
• Lighting dimmer systems for residential or commercial loads
• Temperature modulation controls for heating elements

Scrs Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure correct packaging and variant selection. Confirm that the requested part number matches the exact electrical ratings required for the target circuit design before finalizing procurement orders.

Scrs Selection Notes

Select this component when a low-cost SCR with sensitive gate characteristics is needed for moderate current switching. Ensure the load current does not exceed the 1 A RMS rating and that the peak voltage remains below 400 V. Consider the TO-92 package constraints for thermal management in enclosed spaces.

Scrs Part Context

This device belongs to the TCR22-X family of thyristors manufactured by Littelfuse. The series focuses on providing cost-effective solutions for general-purpose AC switching and phase control applications where standard gate sensitivity is sufficient.

Scrs Replacement Considerations

Consult official substitution guides for equivalent SCRs with matching VDRM and IT(RMS) ratings. Verify pinout compatibility and package dimensions before replacing the original component in existing PCB layouts.