Q8008VH4TP

Triacs Overview

The Littelfuse Q8008VH4TP is a bidirectional triac from the Qxx08xHx series, designed for high-reliability power control applications. It features an RMS on-state current of 8 A and a rated repetitive off-state voltage of 800 V. The device operates within a temperature range of -40°C to +125°C and utilizes a TO-251-3 (DPAK) through-hole package. Key electrical parameters include a maximum holding current of 35 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 35 mA. It exhibits a typical on-state voltage of 1.6 V and a maximum off-state leakage current of 10 µA at VDRM.

Triacs Feature Summary

• High-voltage blocking capability with 800 V rating for robust circuit protection
• Compact surface-mount compatible TO-251-3 package design
• Low gate drive requirements facilitating simple triggering circuits

Triacs Applications

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

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and date code against official Littelfuse documentation. Ensure the TO-251-3 package marking matches the specific Q8008VH4TP designation to prevent counterfeit substitution during sourcing.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 8 A continuous current are required in a compact form factor. Consider the thermal management needs associated with the TO-251-3 package and ensure the gate drive circuit can supply the specified 35 mA trigger current reliably across the operating temperature range.

Triacs Part Context

This triac belongs to the Qxx08xHx family, which emphasizes high reliability and ruggedness. The 'V' suffix typically denotes specific voltage ratings or packaging variations within the series, while 'H' indicates high-temperature or high-reliability characteristics suitable for demanding industrial environments.

Triacs Replacement Considerations

Direct replacements must match the 800 V / 8 A specification and TO-251-3 footprint. Verify pinout compatibility and thermal resistance values before substituting with other manufacturers' triacs to ensure circuit performance integrity.