Q6008L555

Triacs Overview

The Littelfuse Q6008L555 is an 8 Amp bidirectional triac from the Qxx08xHx series, designed for AC switching and phase control. It features a 600V rated repetitive off-state voltage (VDRM) and operates within a junction temperature range of -40°C to +125°C. The device utilizes a sensitive gate structure with a maximum DC gate trigger current of 35 mA, ensuring reliable triggering in Quadrants I and IV for digital control compatibility. Packaged in an SMTO-263-2 surface-mount configuration, it offers high commutation performance suitable for applications requiring robust solid-state switching without mechanical contacts.

Triacs Feature Summary

• Sensitive gate design enabling reliable triggering in Quadrants I and IV for digital circuit integration
• High commutation capability utilizing Alternistor technology for demanding load conditions
• Glass-passivated junctions providing long-term parameter stability and reliability

Triacs Applications

• AC solid-state switches and static relays
• Lighting controls and dimmers
• Motor speed and temperature modulation controls

Triacs Procurement Notes

Verify the specific suffix '555' against official Littelfuse documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required thermal management capabilities for the SMTO-263-2 footprint. Cross-reference the datasheet for exact storage and handling guidelines to maintain device integrity prior to assembly.

Triacs Selection Notes

Select this component for applications requiring 8A RMS current handling at 600V blocking voltage. The sensitive gate characteristic makes it suitable for direct interface with microcontrollers or logic circuits. Consider the SMTO-263-2 package for surface-mount designs where space efficiency is prioritized over the through-hole TO-220 options available in the same series.

Triacs Part Context

This part belongs to the Lxx08xx & Qxx08xx & Qxx08xHx series of 8 Amp bidirectional triacs. The series encompasses standard, sensitive, and Alternistor types, offering voltage ratings up to 1000V. These devices are engineered to replace mechanical relays, eliminating arcing and contact bounce while restricting RFI generation during switching events.

Triacs Replacement Considerations

Compatible substitutes include other 8A 600V sensitive gate triacs in the SMTO-263-2 package from the same manufacturer family, such as the Q6008NH4RP. Verify pinout compatibility and thermal resistance values before substitution.