ACS102-6TA-TR

Overview

The ACS102-6TA-TR is a transient protected AC switch from STMicroelectronics, packaged in TO-92. It features an RMS on-state current of 0.2 A and a repetitive peak off-state voltage (VDRM/VRRM) of 600 V. The device triggers with a maximum gate trigger current (IGT) of 5 mA and a maximum gate trigger voltage (VGT) of 0.9 V. Non-repetitive surge peak on-state current (ITSM) reaches 7.3 A at 50 Hz and 7.6 A at 60 Hz. Operating junction temperature ranges from -30°C to +125°C.

Feature Summary

• Integrated overvoltage protection using crowbar technology to absorb surge energy without external components.
• High noise immunity with static dV/dt exceeding 300 V/µs for reliable operation in noisy environments.
• Gate level shifter driver separates the digital controller from the main switch, enabling direct microcontroller interface.
• Common package tab connection supports connecting multiple switches on the same cooling pad.

Applications

• AC ON/OFF static switching in appliances and industrial control systems
• Drive of low power high inductive loads such as relays, valves, and solenoids
• Control of resistive loads including dispensers, door locks, and micro-motors

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details. The TR suffix indicates tape and reel packing, while other suffixes may denote bulk or tube configurations. Confirm RoHS compliance status and environmental certifications directly from the manufacturer's datasheet before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring integrated overvoltage protection to eliminate external snubbers or varistors. Ensure the load current does not exceed the 0.2 A RMS rating under specified ambient temperatures. Verify that the system can provide a negative gate current flowing out of the gate pin for proper triggering logic compatibility.

Part Context

This part belongs to the ACS line switch family designed by STMicroelectronics. It utilizes ASD (Application Specific Devices) technology to integrate triac functionality with robust protection circuits. The series is engineered to reduce component count significantly compared to standard discrete triac solutions requiring external protection networks.

Replacement Considerations

Direct replacements within the same family include the ACS102-6TA (bulk pack) and ACS102-6T1 variants. Cross-package substitutions require verifying thermal resistance differences between TO-92 and SO-8 packages. Ensure any substitute maintains the 600 V blocking voltage and 5 mA gate sensitivity requirements.

FAQ

How does the ACS102-6T handle overvoltage transients?

It uses an internal overvoltage crowbar structure that breaks over safely during high-energy shocks and clamps lower energy spikes, allowing it to withstand surges up to 2 kV above peak line voltage per IEC 61000-4-5 standards.

What is the required gate drive polarity for triggering?

The switch is triggered by a negative gate current flowing out of the gate pin, allowing it to interface directly with digital controllers through a simple resistor.

Can this device drive high inductive loads without a snubber?

Yes, thanks to its turn-off commutation performance and overvoltage protection, it can drive small power high inductive loads like valves without requiring additional turn-off snubber circuits.