ACST310-8FP

Description：TRIAC SENS GATE 800V 3A TO220FP
Series：ACS™/A.S.D®

SKU:6130e92466d9 Category: TRIACs Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：TRIAC SENS GATE 800V 3A TO220FP
Series：ACS™/A.S.D®
Mfr：STMicroelectronics
Package：Tube
Triac Type：Logic - Sensitive Gate
Voltage - Off State：800 V
Current - On State (It (RMS)) (Max)：3:00 AM
Voltage - Gate Trigger (Vgt) (Max)：1.1 V
Current - Non Rep. Surge 50, 60Hz (Itsm)：20A, 21A
Current - Gate Trigger (Igt) (Max)：10 mA
Current - Hold (Ih) (Max)：20 mA
Configuration：Single
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-3 Full Pack
Supplier Device Package：TO-220FPAB
Grade：-
Qualification：-

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ACST310-8FP

Overview

The ACST310-8FP is a three-terminal AC switch from STMicroelectronics, built with ASD® technology. It integrates a Triac structure and a high-voltage clamping device for overvoltage protection. The device handles an RMS current of 3 A with a repetitive peak off-state voltage of 800 V. It requires a maximum gate trigger current of 10 mA and operates within a temperature range of -40 °C to +125 °C. Packaged in TO-220FPAB, it provides UL certified insulation rated at 2000 V RMS.

Feature Summary

Integrates self-overvoltage protection via a high-voltage clamping device to absorb inductive turn-off energy
Directly driven by microcontrollers due to low gate current requirement (max 10 mA)
High electrical noise immunity complying with IEC 61000-4-4 fast transient burst standards
Provides UL certified insulation rated at 2000 V RMS

Applications

Home appliances requiring direct microcontroller control
Industrial systems driving resistive or inductive loads up to 250 W
Equipment needing compliance with IEC 61000-4-5 line transient standards

Procurement Notes

Verify the specific suffix '8FP' corresponds to the TO-220FPAB package with UL 1557 certification. Confirm availability status as product listings may indicate obsolete status. Ensure the component meets ECOPACK®2 environmental compliance requirements for your region.

Selection Notes

Select this component when designing circuits that require integrated overvoltage protection to eliminate external MOVs or RC snubbers. It is suitable for applications where space reduction and simplified BOM are priorities. Ensure the load does not exceed the 3 A RMS rating and verify compatibility with logic-level gate drive signals.

Part Context

This part belongs to the ACS™ / ACST power switch family utilizing ASD® technology. It is designed to withstand line transients described in IEC 61000-4-5. The series offers enhanced voltage transient clamping compared to standard Triacs, allowing for safer switching of inductive loads without additional protection components.