STMicroelectronics

T435-800B-TR

T435-800B-TR Description

The T435-800B-TR from STMicroelectronics is a high-performance Snubberless™ TRIAC designed for robust switching applications. This 800V, 4A alternistor is packaged in a DPAK surface-mount form factor, making it suitable for compact and high-density PCB designs. As part of the Snubberless™ series, it eliminates the need for external snubber circuits, reducing component count and system cost. The device features a low gate trigger current (35 mA max) and voltage (1.3V max), ensuring easy drive compatibility with microcontrollers and logic circuits. Its 800V off-state voltage and high surge current capability (30A/31A non-repetitive) make it ideal for demanding environments.

T435-800B-TR Features

• High Voltage Rating: 800V off-state voltage for reliable operation in high-voltage AC circuits.
• Snubberless™ Technology: Eliminates the need for snubber networks, simplifying design and reducing BOM cost.
• Low Trigger Requirements: Max gate trigger current of 35 mA and voltage of 1.3V, compatible with low-power control circuits.
• Robust Surge Handling: Non-repetitive surge current of 30A (50Hz)/31A (60Hz) ensures resilience against transient overloads.
• Surface-Mount DPAK Package: Optimized for automated assembly and space-constrained applications.
• Compliance: ROHS3, REACH Unaffected, and ECCN EAR99 certified, meeting global environmental and regulatory standards.

T435-800B-TR Applications

The T435-800B-TR excels in AC load control and switching applications, including:

• Home Appliances: Motor controls in washing machines, refrigerators, and air conditioners.
• Industrial Automation: Solid-state relays, contactors, and industrial heating systems.
• Lighting Systems: Dimming circuits for LED and incandescent lighting.
• Power Tools: Speed control in drills, saws, and other motor-driven equipment.
  Its Snubberless™ design and high surge tolerance make it particularly suited for noisy electrical environments where reliability is critical.

Conclusion of T435-800B-TR

The T435-800B-TR is a high-reliability TRIAC offering simplified design integration, robust performance, and cost efficiency for AC switching applications. Its low trigger requirements, high voltage rating, and surge resilience make it a standout choice for industrial, consumer, and lighting applications. With STMicroelectronics' proven quality and compliance with global standards, this TRIAC is an excellent solution for engineers seeking a balance of performance and ease of use.