Q8008RH4TP

Triacs Overview

The Littelfuse Q8008RH4TP is an Alternistor TRIAC rated for a maximum repetitive off-state voltage (VDRM) of 800 V and an RMS on-state current (IT(RMS)) of 8 A. It features a gate trigger voltage (VGT) of up to 1.3 V and a gate trigger current (IGT) of 35 mA. The device maintains a holding current (IH) of 35 mA and exhibits a low on-state voltage of 1.6 V. It operates within a temperature range from -40 °C to +125 °C and utilizes a TO-220AB flange mount package with three pins.

Triacs Feature Summary

• High dv/dt capability of 200 V/µs ensures reliable blocking performance in high-noise environments.
• Integrated thermal isolation via the isolated case connection simplifies heatsinking requirements.
• Robust commutation characteristics support demanding AC load switching applications.

Triacs Applications

• Industrial motor control systems
• Solid-state relays
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix RH4TP against manufacturer documentation to confirm pinout and isolation specifications. Ensure the procurement channel provides valid RoHS compliance certificates. Cross-reference the datasheet revision date to ensure compatibility with current design standards before finalizing orders.

Triacs Selection Notes

Select this component when an 800 V rating and 8 A continuous current capacity are required. The TO-220AB package facilitates efficient heat dissipation through direct mounting. Verify that the application's peak transient voltages remain below the specified VDRM limit to prevent device failure during operation.

Triacs Part Context

This part belongs to the Qxx08xHx series of Alternistor TRIACs manufactured by Littelfuse. These devices are engineered for high-reliability power control applications, offering superior performance compared to standard triacs in terms of switching speed and noise immunity.

Triacs Replacement Considerations

Direct substitutes include the Q8008LH4TP and Q8008VH4TP. Confirm that alternative packages match the mechanical constraints of the existing PCB layout and verify identical electrical ratings for safe integration.