ACS102-6T1-TR

Overview

The ACS102-6T1-TR is a transient protected AC switch from the STMicroelectronics ACS line, packaged in SO-8. It features an integrated overvoltage crowbar structure and gate level shifter driver to isolate digital controllers from the main switch. Triggered by negative gate current, it controls loads up to 0.2 A RMS with a 600 V blocking voltage. Key electrical parameters include a maximum gate trigger current of 5 mA, a holding current of 20 mA, and a static dV/dt immunity exceeding 300 V/µs. The device operates within a junction temperature range of -30°C to +125°C.

Feature Summary

• Overvoltage protection via crowbar technology absorbs surge energy without external snubbers or varistors.
• High noise immunity against static dV/dt and IEC 61000-4-4 burst transients.
• Gate level shifter driver separates the digital controller from the high-voltage main switch.
• 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 '1' corresponds to the SO-8 package configuration rather than the standard TO-92 variant. Confirm that the '-TR' suffix indicates tape and reel packaging for automated assembly processes. Ensure compatibility with the required operating temperature range and verify RoHS compliance status for the specific manufacturing batch before finalizing procurement orders.

Selection Notes

Select this component when direct microcontroller interface is required without additional isolation circuitry. The 5 mA gate sensitivity allows driving directly from standard logic outputs. Consider the SO-8 package for surface mount applications requiring common tab connections for thermal management. Evaluate the 0.2 A RMS rating against peak load currents to ensure adequate margin for inductive turn-off scenarios.

Part Context

The ACS102-6T1-TR belongs to the ACS102 series of AC line switches built on Application Specific Devices (ASD) technology. This family integrates overvoltage protection and gate drivers into a single compact package. The part number designation indicates the SO-8 surface mount package variant, distinguishing it from through-hole options while maintaining identical electrical characteristics and functional capabilities within the product line.

Replacement Considerations

ACS102-6TA-TR: Equivalent AC switch in TO-92 through-hole package with identical electrical ratings and functionality.

FAQ

How does the ACS102-6T handle overvoltage events?

It utilizes an integrated overvoltage crowbar structure that breaks over safely during high-energy shocks or clamps low-energy spikes, dissipating stored inductive energy without requiring external components.

What is the trigger mechanism for the gate input?

The switch is triggered by a negative gate current flowing out of the gate pin, allowing direct interfacing with digital controllers through a simple resistor.

Does the device require an external snubber circuit?

No, the integrated overvoltage protection and commutation performance eliminate the need for external protection snubbers or varistors for most standard applications.