T2535-800G-TR TRIAC Alternistor 800V 25A D2PAK

Introducing the STMicroelectronics T2535-800G-TR TRIAC Alternistor

The T2535-800G-TR from STMicroelectronics (STM) represents a pinnacle of innovation in semiconductor technology, designed specifically for high-power alternating current (AC) applications. As part of STM's Snubberless™ series, this TRIAC Alternistor eliminates the need for external snubber circuits, reducing component count and simplifying circuit design while maintaining superior performance. With its robust 800V off-state voltage rating and 25A RMS current capacity, this device is engineered to handle demanding industrial and consumer applications where reliability and efficiency are paramount.

Key Technical Specifications

Parameter	Value
Off-State Voltage (VDRM)	800 V
RMS On-State Current (IT(RMS))	25 A
Gate Trigger Voltage (VGT)	Max 1.3 V
Gate Trigger Current (IGT)	Max 35 mA
Non-Repetitive Surge Current	250A/260A (50/60Hz)

Manufactured in a compact D2PAK surface-mount package (TO-263AB), this TRIAC combines high thermal performance with space-saving design, making it ideal for modern power electronics. The device's wide operating temperature range (-40°C to 125°C) ensures consistent performance in extreme environments, from industrial automation systems to home appliances.

Advantages of Snubberless™ Technology

Traditional TRIACs often require external snubber circuits to suppress voltage spikes during switching. The T2535-800G-TR's patented Snubberless™ design integrates this protection internally, offering multiple benefits:

• Reduced PCB space requirements
• Lower BOM costs
• Improved system reliability
• Simplified design validation

This innovation particularly benefits designers working on smart home devices, motor controls, and solid-state relays where space and cost optimization are critical.

Performance in Real-World Applications

Engineered for versatility, this TRIAC excels across various applications:

Industrial Automation: Reliable switching for motor drives and heating elements

Home Appliances: Energy-efficient control in washing machines and HVAC systems

Lighting Controls: Dimming and switching for high-power LED systems

Power Tools: Robust switching in variable-speed motor applications

The device's low gate trigger voltage (1.3V max) and current (35mA max) make it compatible with standard microcontroller outputs, eliminating the need for additional driver circuits. Its 50mA maximum hold current ensures stable operation even in low-load scenarios.

Manufacturing Excellence

As a product of STMicroelectronics - a global leader in semiconductor solutions, this TRIAC embodies STM's commitment to quality and innovation. The D2PAK package with surface-mount technology enables automated assembly processes while maintaining excellent thermal dissipation capabilities. This combination of advanced packaging and proven silicon technology results in a device that delivers both high performance and long-term reliability.

Tags: Snubberless Technology, Surface Mount, High Voltage, Industrial Automation, Power Electronics