QJ8008NH4RP

Triacs Overview

The Littelfuse QJ8008NH4RP is a high-temperature Alternistor triac rated for 800 V repetitive off-state voltage and 8 A RMS on-state current. It features a non-repetitive surge current capacity of 83 A or 100 A depending on the specific datasheet variant, with a maximum on-state voltage of 1.6 V. The device operates within a temperature range of -40°C to +125°C and utilizes an SMTO-263-2 (D2PAK) surface-mount package.

Triacs Feature Summary

• Snubberless operation capability designed for high dv/dt immunity
• High-temperature construction suitable for demanding thermal environments
• Surface-mount packaging for automated assembly processes

Triacs Applications

• Industrial motor control systems
• Solid-state relay modules
• High-power AC switching applications

Triacs Procurement Notes

Verify the specific suffix configuration against the manufacturer's latest documentation to ensure compatibility with required thermal and electrical specifications. Confirm that the selected package variant matches the intended PCB footprint and soldering profile requirements for reliable surface-mount integration.

Triacs Selection Notes

Select this component when high dv/dt performance without external snubbers is required in space-constrained designs. Ensure the 8 A RMS rating meets continuous load demands and that the 800 V blocking voltage exceeds peak line voltages with adequate safety margins for the specific application environment.

Triacs Part Context

This part belongs to the Littelfuse Alternistor family, which emphasizes robustness in high-voltage AC switching. The QJ series specifically targets industrial applications requiring reliable triac performance in compact surface-mount formats, distinguishing it from through-hole alternatives by offering enhanced thermal management capabilities.

Triacs Replacement Considerations

Direct substitutes include the Q8008NH4RP for lower voltage ratings and the QK008NH4RP for higher voltage requirements. Verify pinout compatibility and thermal resistance characteristics when transitioning between these variants to maintain circuit integrity.