Overview
The ACST610-8T is a high-performance AC switch from STMicroelectronics, part of the ACST6 series. This device is built using Application Specific Discrete (A.S.D.) technology and is designed for use in home appliances and industrial systems. It features a Triac structure with integrated overvoltage protection, enabling it to absorb inductive turn-off energy and withstand line transients as specified in IEC 61000-4-5 standards. The ACST610-8T requires a low gate current (IGT < 10 mA) for activation and exhibits high noise immunity, complying with IEC 61000-4-4 standards for fast transient burst tests.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | ACST610-8T | |
| Package | TO-220AB | |
| Operating Temperature (°C) | -40 to +125 | |
| On-state rms current (IT(RMS)) | 6 A | |
| Max. off-state voltage (VDRM/VRRM) | 800 V | |
| Triggering gate current max (IGT) | 10 mA | |
| Rising Ratio Of Off Voltage (V/µs) (min) | 500 V/µs | |
| Rate of decrease of commutating on-state current (A/ms) (min) | 3.5 A/ms | |
| Insulation RMS voltage (VINS(RMS)) | 2000 V |
Key Features
- Triac with overvoltage protection
- Low gate triggering current (IGT < 10 mA)
- TO-220AB package, compliant with UL standards (file ref: E81734)
- Insulation voltage: 2000 V RMS
- High noise immunity, complying with IEC 61000-4-4 standards
- No external overvoltage protection required
- Reduces the power passive component count
Applications
The ACST610-8T is suitable for various applications, including:
- AC mains static switching in appliance and industrial control systems
- Driving medium power AC loads such as universal motors in washing machines, compressors for refrigerators or air conditioners
- Control of inductive loads up to 6 A without the need for additional snubber circuits
Q & A
- What is the maximum on-state rms current of the ACST610-8T?
The maximum on-state rms current is 6 A.
- What is the maximum off-state voltage of the ACST610-8T?
The maximum off-state voltage is 800 V.
- What is the triggering gate current for the ACST610-8T?
The triggering gate current is less than 10 mA.
- What are the operating temperature ranges for the ACST610-8T?
The operating junction temperature range is -40 to +125 °C.
- Does the ACST610-8T require external overvoltage protection?
No, the ACST610-8T does not require external overvoltage protection due to its integrated overvoltage clamping device.
- What types of loads can the ACST610-8T drive?
The ACST610-8T can drive medium power AC loads, including universal motors and compressors.
- What is the insulation RMS voltage for the TO-220FPAB package?
The insulation RMS voltage for the TO-220FPAB package is 2000 V.
- Is the ACST610-8T compliant with any specific standards?
Yes, it complies with IEC 61000-4-5 and IEC 61000-4-4 standards, and also with UL standards (file ref: E81734).
- Can the ACST610-8T be driven directly by an MCU?
Yes, the ACST610-8T can be driven directly by an MCU through a simple gate resistor due to its low gate triggering current.
- What is the maximum lead solder temperature for the ACST610-8T?
The maximum lead solder temperature during 10 ms (at 3 mm from plastic case) is 260 °C.
