Overview
The ACST410-8B is a high-performance AC switch from STMicroelectronics, part of the ACST4 series. This device is designed for high-current switching applications and is suitable for use in home appliances and industrial systems. It features a Triac structure with integrated overvoltage protection, making it robust against line transients and electrical noise. The ACST410-8B operates with a low gate current requirement of less than 10 mA and offers high noise immunity, complying with various IEC standards such as IEC 61000-4-4 and IEC 61000-4-5.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| On-state RMS Current (IT RMS) | 4 | A |
| Rated Repetitive Off State Voltage (VDRM/VRRM) | 800 | V |
| Gate Trigger Current (IGT) | 10 | mA |
| Gate Trigger Voltage (VGT) | 1 | V |
| Holding Current (IH Max) | 20 | mA |
| Off State Leakage Current @ VDRM (IDRM) | 40 | mA |
| Operating Junction Temperature Range (Tj) | -40 to +125 | °C |
| Insulation RMS Voltage (Vins) | 2000 | V |
| Package/Case | DPAK, TO-220FPAB |
Key Features
- Triac with integrated overvoltage protection
- Low gate trigger current (IGT < 10 mA)
- High noise immunity: static dV/dt > 500 V/μs
- TO-220FPAB insulated package complying with UL standards (File ref: E81734) 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
Q & A
- What is the ACST410-8B used for?
The ACST410-8B is used for high-current switching applications in home appliances and industrial systems, particularly for AC mains static switching and driving medium power AC loads.
- What are the key specifications of the ACST410-8B?
The key specifications include an on-state RMS current of 4 A, a rated repetitive off-state voltage of 800 V, a gate trigger current of 10 mA, and an operating junction temperature range of -40 to +125 °C.
- What type of package does the ACST410-8B come in?
The ACST410-8B is available in DPAK and TO-220FPAB packages.
- Does the ACST410-8B require external overvoltage protection?
No, the ACST410-8B does not require external overvoltage protection due to its integrated overvoltage protection feature.
- What are the benefits of using the ACST410-8B?
The benefits include high off-state reliability, reduced power passive component count, and high immunity against fast transients, enabling equipment to meet IEC 61000-4-5 standards.
- What is the insulation voltage of the TO-220FPAB package?
The insulation voltage of the TO-220FPAB package is 2000 V RMS.
- How does the ACST410-8B comply with IEC standards?
The ACST410-8B complies with IEC standards such as IEC 61000-4-4 (fast transient burst test) and IEC 61000-4-5 (line transients).
- What is the storage temperature range for the ACST410-8B?
The storage temperature range is -40 to +150 °C.
- What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering is 260 °C for 10 seconds at 3 mm from the plastic case.
- How does the ACST410-8B reduce component count?
The ACST410-8B reduces the power passive component count by integrating overvoltage protection and other necessary features into a single device.
