TPDV840RG

Overview

The TPDV840RG is a 40A high-voltage Triac from the TPDVxx40 series, utilizing STMicroelectronics' alternistor technology. It features a maximum blocking voltage of 1200V and a gate trigger current of 200mA. The device supports commutation at 10 V/μs up to 142 A/ms and offers noise immunity of 500 V/μs. It is housed in an insulated package rated for 2500 Vrms isolation (UL recognized E81734). Operating temperatures range from -40°C to 125°C, with a peak on-state voltage of 1.8V and a surge current rating of 590A.

Feature Summary

• High performance alternistor technology for superior commutation levels
• Insulated package providing 2500 Vrms electrical isolation
• High surge current capability suitable for demanding power control

Applications

• Power control for inductive loads such as motors and transformers
• Three-phase heating systems
• Motor starters
• Induction motor speed control for fans

Procurement Notes

Verify the specific suffix RG against the official datasheet to confirm pinout configuration and packaging type. Ensure the 1200V blocking voltage aligns with system requirements. Check for RoHS compliance status in the latest documentation. Confirm thermal management needs given the 40A RMS rating. Validate insulation class requirements for safety standards.

Selection Notes

Select this component when high commutation rates and noise immunity are critical for three-phase applications. The 1200V rating suits higher voltage grids compared to standard 800V devices. Consider the insulated package for safety-critical designs requiring galvanic isolation. Evaluate thermal dissipation capabilities for continuous 40A operation in enclosed spaces.

Part Context

This part belongs to the TPDVxx40 family, which leverages alternistor technology for enhanced performance over traditional triacs. The series is designed specifically for robust industrial environments where high surge currents and fast commutation are necessary. It represents STMicroelectronics' focus on efficient power control solutions for heavy-duty machinery.

Replacement Considerations

Direct substitutes within the same voltage and current ratings should be evaluated for pin compatibility and thermal characteristics. Verify if alternative packages offer equivalent isolation ratings. Ensure gate trigger specifications match existing drive circuitry constraints without modification.