Q6008L552

Triacs Overview

The Littelfuse Q6008L552 is a Triac belonging to the Lxx08xx series, designed for AC switching and phase control applications. It features an 8 A RMS on-state current and supports rated repetitive off-state voltages of 400 V, 600 V, 800 V, or 1000 V. The device utilizes a TO-220AB flange mount package with three through-hole terminals. Key electrical parameters include a maximum gate trigger current ranging from 5 mA to 50 mA depending on the specific variant. It operates within a temperature range of -40°C to +125°C and incorporates glass-passivated junctions for parameter stability.

Triacs Feature Summary

• Standard type components operate in quadrants I & III triggered from AC line
• Sensitive type components guarantee gate control in quadrants I & IV for digital control circuitry
• Surge capability up to 100 A provides robust protection against transient events
• Electrically isolated semiconductor device recognized to UL 1557

Triacs Applications

• AC solid-state switches
• Light dimmers
• Motor speed controls
• Heating and lighting controls

Triacs Procurement Notes

Verify the specific voltage rating suffix (e.g., 400V, 600V, 800V, or 1000V) when ordering, as the base part number covers multiple variants. Confirm RoHS compliance status and agency approval numbers such as E71639 for the L-package. Ensure the TO-220AB package style matches the thermal management requirements of the target application design.

Triacs Selection Notes

Select this component for applications requiring standard quadrant operation triggered from the AC line. Choose sensitive variants if digital control circuitry requires gate control in quadrants I & IV. Ensure the selected voltage rating meets the peak line voltage requirements. The TO-220AB package allows for direct mounting to heat sinks via the flange for effective thermal dissipation during high-current operation.

Triacs Part Context

This Triac belongs to the Lxx08xx series manufactured by Littelfuse. The series is characterized by 8 Amp bidirectional solid-state switching capabilities. These devices are engineered to eliminate arcing and contact bounce associated with mechanical relays. The family includes standard, sensitive, and alternistor types to suit various commutation performance needs.

Triacs Replacement Considerations

Compatible replacements must match the 8 A RMS current rating and the specific off-state voltage requirement. Verify that the replacement device supports the same TO-220AB package dimensions and pinout configuration. Ensure the new component offers equivalent gate trigger sensitivity and dv/dt ratings for the intended load type.