Q4008F41

Triacs Overview

The Q4008F41 is a bidirectional triac manufactured by Littelfuse, designed for AC switching and phase control applications. It features an 8 A RMS on-state current capability and a rated repetitive off-state voltage of 400 V. The device operates within a junction temperature range of -40 °C to +125 °C. Key electrical parameters include a maximum holding current of 50 mA and a gate trigger voltage of 2.5 V. It utilizes a TO-202 package style for through-hole mounting.

Triacs Feature Summary

• Bidirectional solid-state switch designed for AC line triggering in Quadrants I & III
• Sensitive gate type ensuring reliable control in digital circuitry environments
• High reliability construction with UL recognition for specific voltage ratings

Triacs Applications

• Motor speed modulation controls
• Temperature modulation systems
• Lighting control circuits
• Static switching relays

Triacs Procurement Notes

Verify the exact suffix configuration against official Littelfuse documentation to ensure compatibility with required voltage and current specifications. Confirm RoHS compliance status and agency approvals such as UL recognition prior to integration. Cross-reference datasheet revisions to account for potential parameter updates or manufacturing changes that may affect performance characteristics.

Triacs Selection Notes

Select this component for applications requiring standard quadrant operation triggered from the AC line. Ensure the system design accommodates the specified gate trigger current and voltage levels. Verify thermal management requirements align with the device's operating temperature range and power dissipation limits under expected load conditions.

Triacs Part Context

This part belongs to the Lxx08xx and Qxx08xx series of 8 Amp sensitive, standard, and Alternistor triacs. These devices are engineered for robust AC switching performance. The series offers various voltage ratings and package options to suit diverse industrial and consumer electronic control requirements.

Triacs Replacement Considerations

Q4008L4TP

Triacs FAQ

What is the maximum repetitive off-state voltage?

The rated repetitive off-state voltage (VDRM) is 400 V.

In which quadrants does this triac operate?

Standard type devices like the Q4008F41 normally operate in Quadrants I & III when triggered from the AC line.