LX807DE

Triacs Overview

The Littelfuse LX807DE is a logic-level sensitive gate triac designed for through-hole mounting in the TO-92 package. It supports an RMS on-state current of 800 mA and withstands a rated repetitive off-state voltage of 400 V. The device features a non-repetitive peak on-state current of 8 A, a maximum holding current of 5 mA, and a gate trigger current ranging from 3 mA to 5 mA. Operating within a junction temperature range of -40°C to +110°C, it exhibits a low on-state voltage of 1.6 V and a gate trigger voltage of 1.3 V. Leakage current is limited to 5 uA at VDRM.

Triacs Feature Summary

• Logic-level sensitive gate architecture enables direct interfacing with microcontrollers and digital logic circuits without requiring high drive currents.
• Through-hole TO-92 packaging provides mechanical stability and thermal dissipation suitable for general-purpose control applications.

Triacs Applications

• Lighting control systems
• Fan speed regulation
• Solid-state relays

Triacs Procurement Notes

Verify the specific suffix DE against the manufacturer's official datasheet to confirm pinout orientation and electrical tolerances. Ensure the procurement channel sources components directly from authorized distributors or the manufacturer to prevent counterfeit parts. Confirm RoHS compliance status via the latest regulatory documentation before integration into restricted substance protocols.

Triacs Selection Notes

Select this component when a sensitive gate triac is required for low-power AC switching applications. The 400 V rating suits low-voltage AC mains environments. Compare the 800 mA RMS current capability against load requirements. Verify that the TO-92 package fits the PCB layout constraints and that the logic-level gate sensitivity matches the driving circuit's output capabilities.

Triacs Part Context

The LX807DE belongs to the LX8 series of triacs manufactured by Littelfuse. This series focuses on sensitive gate devices optimized for logic compatibility. The LX807DE specifically offers a 400 V blocking voltage and 800 mA current handling in a standard through-hole package, distinguishing it from higher voltage variants like the LX807MEAP.

Triacs Replacement Considerations

The LX807DTRP serves as a surface-mount alternative within the same series, offering identical electrical characteristics but in an SOT-223 package. Other LX8 series triacs may share similar gate sensitivities but require verification of voltage and current ratings for direct substitution.