LX803MTRP

Triacs Overview

The Littelfuse LX803MTRP is a bidirectional triac from the LX8 series, designed for AC switching and phase control applications. It features an RMS on-state current of 800 mA and a rated repetitive peak off-state voltage of 600 V. The device operates within a junction temperature range of -40°C to +110°C and utilizes a TO-92 through-hole package. Key electrical parameters include a maximum holding current of 5 mA, a gate trigger voltage of 1.3 V, and a gate trigger current ranging from 3 mA to 5 mA. The on-state voltage is specified at 1.6 V, with a non-repetitive peak on-state current capability of 8 A.

Triacs Feature Summary

• Logic-sensitive gate configuration for low-power triggering requirements
• Glass-passivated junctions to ensure long-term parameter stability and reliability
• Bidirectional AC switching capability suitable for noise-immune phase control

Triacs Applications

• AC speed controls for motors and fans
• Temperature modulation controls in heating systems
• Lighting controls requiring high noise immunity

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout orientation and packaging type. Ensure the component meets RoHS compliance standards required by the target application. Cross-reference the part number with Littelfuse documentation to validate the exact gate sensitivity class before procurement.

Triacs Selection Notes

Select this component when a 600V blocking voltage and 800mA continuous current are required in a compact through-hole package. The logic-sensitive gate characteristic allows direct interfacing with low-current control circuits. Verify that the thermal management design supports the specified operating temperature range of up to 110°C under load conditions.

Triacs Part Context

This triac belongs to the LX8 family of devices manufactured by Littelfuse. The series is characterized by glass-passivated junctions and is optimized for applications demanding reliable AC switching with minimal gate drive power. The LX803MTRP variant specifically provides 600V blocking capability within the standard TO-92 form factor.

Triacs Replacement Considerations

Compatible substitutes include the LX803MERP and L4X8E3RP, provided the voltage rating and package compatibility align with the circuit design requirements.