Overview
The ACST410-8FP is a high-performance AC switch from STMicroelectronics, part of the ACS/ACST power switch family. This device is designed for use in home appliances and industrial systems, capable of driving loads up to 4 A. It features a Triac structure with a high voltage clamping device to absorb inductive turn-off energy and withstand line transients as specified in IEC 61000-4-5 standards. The ACST410-8FP requires a low gate current for activation (IGT < 10 mA) and exhibits high electrical noise immunity, complying with IEC standards such as IEC 61000-4-4 (fast transient burst test).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| On-state rms current (IT(RMS)) | 4 | A |
| Maximum repetitive peak off-state voltage (VDRM/VRRM) | 800 | V |
| Gate triggering current (IGT) | 10 | mA |
| Operating junction temperature range (Tj) | -40 to +125 | °C |
| Insulation rms voltage (Vins) | 2000 | V RMS |
| Non repetitive surge peak on-state current (ITSM) | 32 (50 Hz), 30 (60 Hz) | A |
| Critical rate of rise on-state current (dI/dt) | 100 | A/μs |
| Junction to case thermal resistance (Rth(j-c)) | 4.6 (TO-220FPAB) | °C/W |
| Junction to ambient thermal resistance (Rth(j-a)) | 60 (TO-220FPAB) | °C/W |
Key Features
- Triac with overvoltage protection
- Low gate triggering current (IGT < 10 mA) or high immunity version (IGT < 35 mA)
- High noise immunity: static dV/dt > 1000 V/μs
- TO-220FPAB insulated package, complying with UL standards and insulation voltage of 2000 V RMS
- High off-state reliability with planar technology
- No need for external overvoltage protection
- Reduces the power passive component count
- High immunity against fast transients described in IEC 61000-4-4 standards
Applications
- AC mains static switching in appliance and industrial control systems
- Drive of medium power AC loads such as universal drum motors in washing machines and compressors in refrigerators or air conditioners
- Control of inductive loads up to 4 A without additional snubber circuits
Q & A
- What is the maximum on-state rms current of the ACST410-8FP?
The maximum on-state rms current is 4 A.
- What is the maximum repetitive peak off-state voltage of the ACST410-8FP?
The maximum repetitive peak off-state voltage is 800 V.
- What is the gate triggering current required for the ACST410-8FP?
The gate triggering current is less than 10 mA.
- What is the operating junction temperature range of the ACST410-8FP?
The operating junction temperature range is -40 to +125 °C.
- What type of package does the ACST410-8FP come in?
The ACST410-8FP comes in a TO-220FPAB insulated package.
- Does the ACST410-8FP require external overvoltage protection?
No, the ACST410-8FP does not require external overvoltage protection due to its built-in high voltage clamping device.
- What are some common applications of the ACST410-8FP?
Common applications include AC mains static switching in appliances and industrial control systems, and driving medium power AC loads such as motors and compressors.
- What is the insulation rms voltage of the ACST410-8FP?
The insulation rms voltage is 2000 V RMS.
- How does the ACST410-8FP handle electrical noise immunity?
The ACST410-8FP has high electrical noise immunity, complying with IEC standards such as IEC 61000-4-4 (fast transient burst test).
- What is the thermal resistance of the ACST410-8FP in the TO-220FPAB package?
The junction to case thermal resistance is 4.6 °C/W, and the junction to ambient thermal resistance is 60 °C/W.
