LX803DERP

Triacs Overview

The Littelfuse LX803DERP is a bidirectional triac from the LX8 series, designed for sensitive gate triggering applications. It features an RMS on-state current of 800 mA and supports a non-repetitive peak on-state current of 8 A. The device is rated for a repetitive peak off-state voltage (VDRM) of 400 V with a maximum off-state leakage current of 5 uA at VDRM. Key electrical parameters include an on-state voltage of 1.6 V, a holding current maximum of 5 mA, and gate trigger specifications of 1.3 V voltage and 3 mA to 5 mA current. It operates within a temperature range of -40 C to +110 C and is housed in a TO-92 through-hole package.

Triacs Feature Summary

• Sensitive gate design enabling reliable triggering with low gate drive requirements
• Bidirectional conduction capability suitable for AC switching applications
• Robust thermal performance supporting operation up to +110 C

Triacs Applications

• Lighting control circuits
• Motor speed control systems
• Heater control applications

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number LX803DERP with official Littelfuse documentation. Confirm RoHS compliance status through the provided datasheet links. Ensure the ordering suffix matches the required packaging format, such as cut tape or reel, as specified in the product attributes. Validate that the received components match the TO-92 package type and date codes align with current production standards.

Triacs Selection Notes

Select this component when a 400 V rated bidirectional switch with 800 mA continuous current capacity is required. The sensitive gate characteristic makes it suitable for direct interface with logic-level drivers or microcontrollers without additional amplification. Consider the TO-92 through-hole package for prototyping or applications where surface mount space is not constrained. Verify that the 5 mA holding current meets the minimum load requirements of the specific circuit design.

Triacs Part Context

The LX803DERP belongs to the LX8 series of triacs manufactured by Littelfuse. This series focuses on providing reliable AC power control solutions in compact packages. The LX8 family is engineered for general-purpose switching tasks, offering a balance between current handling capability and ease of integration into standard electronic designs. The DER suffix typically indicates specific packaging or testing configurations within the broader LX8 product line.

Triacs Replacement Considerations

Direct replacements must maintain 400 V VDRM, 800 mA It RMS, and TO-92 packaging. Verify gate sensitivity compatibility to ensure proper triggering with existing drive circuits. Check if alternative part numbers offer improved thermal characteristics or different packaging options while meeting the same electrical specifications.