ACST4-7C The ST ACST4-7C is an AC Power Switch designed for appliance control systems. It features a 700V blocking voltage and 4A nominal conducting current.
Mfr Part #:

ACST4-7C

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The ST ACST4-7C is an AC Power Switch designed for appliance control systems. It features a 700V blocking voltage and 4A nominal conducting current.
✓ Total Stock: 7,000 pcs
$ Price Range: $1.87

ACST4-7C Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
7,000 pcs
7000 pcs On Request 1 On Request On Request 24+ On Request On Request

ACST4-7C Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
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ACST4-7C Description

Short technical summary and product information.

The ST ACST4-7C is an AC Power Switch belonging to the ACST4 Series, built around ASD™ technology. This high-performance device is suitable for home appliances and industrial systems, capable of driving loads up to 4 A. It integrates a Triac structure with a high-voltage clamping device to absorb inductive turn-off energy and withstand line transients, enabling equipment to meet IEC 61000-4-5 standards.

 

Key electrical specifications include a repetitive peak off-state voltage (VDRM/VRRM) of +/-700V and an RMS on-state current (IT(RMS)) of 4A in a DPAK package at 110°C. It offers a high surge current capability of 30A for 20ms. The device features a high noise immunity with a static dV/dt greater than 500V/µs.

 

Available in DPAK and TO-220FPAB packages, the ACST4-7C is designed for AC static switching applications. Its benefits include direct interface with microcontrollers and no need for external overvoltage protection, reducing the power component factor. Main applications include appliance control systems like spray pumps in dishwashers and fans in air conditioners.

 

Operating temperature ranges from -30°C to +125°C, with a storage temperature range of -40°C to +150°C. The device is available in surface mount (DPAK) and through-hole (TO-220FPAB) mounting types.

ACST4-7C Quick Information

Product Type: AC Power Switch
Series: ACST4 Series
Canonical Name: ACST4-7C AC Power Switch
Subcategory: Special Purpose

ACST4-7C Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ACST4-7C Estimated Pricing

Qty Low High
1+ $1.87 $1.87

Estimated market price range - modelled values for guidance only, not live distributor offers.

ACST4-7C Features

  • 700V repetitive peak off-state voltage.
  • 4A RMS on-state current capability.
  • 30A high surge current capability.
  • Integrated driver and high noise immunity.
  • Available in DPAK and TO-220FPAB packages.

ACST4-7C Applications

  • AC static switching in appliance control.
  • Drives low power inductive loads.
  • Used in dishwasher pump control.
  • Suitable for fan control in air conditioners.

ACST4-7C FAQs

5 frequently asked questions generated from this part’s specifications.
What is the blocking voltage of the ACST4-7C?

The repetitive peak off-state voltage (VDRM/VRRM) is +/-700V.

What is the RMS on-state current for the ACST4-7C?

The nominal RMS on-state current is 4A for the DPAK package at 110°C.

What is the surge current capability of the ACST4-7C?

It has a non-repetitive surge peak on-state current of 30A for 20ms at 50Hz.

What is the operating temperature range for the ACST4-7C?

The operating junction temperature range is -30°C to +125°C.

What packages is the ACST4-7C available in?

It is available in DPAK and TO-220FPAB packages.

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