Q4035RH5TP

Triacs Overview

The Littelfuse Q4035RH5TP is a bidirectional triac designed for AC power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an RMS on-state current (IT(RMS)) of 35 A. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220-2 package for through-hole mounting. Key electrical characteristics include a maximum holding current of 50 mA, a gate trigger current of 50 mA, and a typical on-state voltage of 1.5 V. The component exhibits a low off-state leakage current of 10 µA at VDRM.

Triacs Feature Summary

• High current handling capability with 35 A RMS rating
• Sensitive gate drive requiring only 50 mA trigger current
• Robust thermal performance supporting up to 125°C junction temperature

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix H5TP against official Littelfuse documentation to confirm pinout configuration and gate sensitivity class. Ensure the procurement channel provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with authorized distributor databases to validate authenticity before purchase.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 35 A continuous current capacity are required in a standard TO-220-2 footprint. The sensitive gate characteristic simplifies driver circuit design compared to standard gate variants. Verify that the application's peak transient voltages remain below the 400 V rating to ensure reliable operation.

Triacs Part Context

This part belongs to the Littelfuse Qxx35xHx series of high-current triacs. The series is engineered for robust AC switching in industrial and consumer environments. The Q4035RH5TP specifically addresses applications needing moderate voltage blocking with significant current throughput in a cost-effective through-hole package.

Triacs Replacement Considerations

Direct replacements must match the 400 V / 35 A specification and TO-220-2 package. Verify equivalent gate trigger currents to ensure compatibility with existing drive circuits. Consult manufacturer substitution guides for cross-brand equivalents.