L4008V8

Triacs Overview

The Littelfuse L4008V8 is a sensitive gate triac designed for AC power control applications. It features a maximum repetitive peak off-state voltage of 800 V and an on-state current rating of 8 A. The device utilizes a TO-220AB package with electrical isolation. Key electrical parameters include a holding current of 5 mA, a gate trigger current range of 5 to 10 mA, and a typical on-state voltage drop of 1.6 V at rated current. The component offers high surge current capability and is engineered for reliable operation in four-quadrant gating configurations.

Triacs Feature Summary

• Sensitive gate architecture enabling control by digital circuitry
• Four-quadrant gating capability for positive and negative pulse control
• Electrically isolated package construction for safety
• Glass-passivated junctions ensuring parameter stability

Triacs Applications

• Solid state relays
• Motor speed controls
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm exact thermal and mechanical specifications. Ensure the ordering part number matches the required voltage and current ratings for the target application. Confirm RoHS compliance status if restricted substances are a constraint for the assembly process.

Triacs Selection Notes

Select this component based on the 800 V blocking voltage and 8 A RMS current requirements. Evaluate the thermal management needs for the TO-220AB package under continuous load conditions. Consider the sensitive gate characteristics for compatibility with low-power logic drivers compared to standard gate devices.

Triacs Part Context

This device belongs to the Teccor L4008 series of sensitive gate triacs from Littelfuse. The series provides various voltage ratings from 200 V to 600 V and current capabilities up to 8 A. These components are widely used in general purpose AC switching applications requiring precise gate control.

Triacs Replacement Considerations

Compatible substitutes include other 800 V, 8 A sensitive gate triacs in TO-220 packages from manufacturers such as STMicroelectronics or Vishay. Verify pinout compatibility and thermal resistance values before substitution.