ACST610-8FPA STMicroelectronics Integrated Circuit (Transistor Outline, Vertical) In Stock
STMicroelectronics ACST610-8FPA is an overvoltage-protected AC switch integrating gate control, zero-crossing detection, and overcurrent protection in a vertical TO package, rated for up to 600 V and 10 A. Available from authorized distributors with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- ACST610-8FPA Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ACST610-8FPA?
- Integrated overvoltage protection up to 600 V safeguards the load and circuit without external protection components
- Built-in zero-crossing detection minimizes EMI and inrush current at AC switching events for cleaner mains operation
- Combines gate-drive logic and 10 A current handling in a compact vertical TO package, reducing board space and BOM
What is ACST610-8FPA used for?
The ACST610-8FPA is designed for direct AC mains load switching in home appliances, HVAC systems, and building automation equipment where overvoltage transients are common. Its integrated protection and zero-crossing function make it ideal for motor starters, lighting dimmers, and relay replacement circuits operating at 230 V or 120 V mains. Industrial programmable logic controllers and smart home switches also benefit from its robust 600 V blocking capability and compact form factor.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ACST610-8FPA datasheet?
ACST610-8FPA Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for ACST610-8FPA?
Compatible alternatives and drop-in replacements for ACST610-8FPA:
Frequently Asked Questions
What voltage and current ratings does the ACST610-8FPA support for AC mains switching applications?
The ACST610-8FPA is rated for blocking voltages up to 600 V and on-state currents up to 10 A RMS, making it suitable for directly switching 230 V AC loads up to approximately 2.3 kW such as motors, heaters, and lighting systems. The 600 V rating provides sufficient margin against mains transients without requiring additional external voltage clamping devices.
How does the ACST610-8FPA's integrated overvoltage protection compare to using a discrete TRIAC with a separate TVS diode?
The ACST610-8FPA integrates overvoltage protection internally, eliminating the need for an external TVS diode or snubber network that would otherwise be required with a discrete TRIAC. This reduces component count by at least 2 to 3 parts per switch node, saves PCB area, and improves reliability by removing the failure mode associated with underrated external protection components in 600 V mains environments.
In which package is the ACST610-8FPA supplied, and does it suit both through-hole and automated assembly?
The ACST610-8FPA is supplied in a vertical TO (Transistor Outline) through-hole package, which is compatible with wave-soldering and manual insertion assembly processes. The vertical orientation reduces PCB footprint compared to horizontal TO-220 packages, making it practical for compact power boards in appliances and industrial controls where component height is a layout constraint.
What role does zero-crossing detection play in ACST610-8FPA, and why is it important for EMI compliance?
The ACST610-8FPA's built-in zero-crossing detection triggers switching transitions only at the point where the AC waveform crosses 0 V. This eliminates the large di/dt spikes that occur when switching mid-cycle, reducing radiated and conducted EMI by 10 dB or more. Meeting IEC 55014 or CISPR 22 conducted emission limits becomes more achievable without adding expensive EMI filters, lowering overall system cost.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
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