ACST6-7ST
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STMicroelectronics ACST6-7ST

Manufacturer No:
ACST6-7ST
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
TRIAC SENS GATE 700V 6A TO220AB
Delivery:
Payment:
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Product Introduction

Overview

The ACST6-7ST, produced by STMicroelectronics, is a high-performance AC power switch belonging to the ACS/ACST power switch family. 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 a high voltage clamping device, which enables it to absorb inductive turn-off energy and withstand line transients as specified in the IEC 61000-4-5 standards. The ACST6-7ST requires a low gate current (IGT < 10 mA) for activation and exhibits high 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)) 6 A
Repetitive peak off-state voltage (VDRM/VRRM) 700 V
Gate triggering current (IGT) 10 mA
Operating temperature range -30 to 125 °C
Insulation voltage (TO-220FPAB package) 2000 V RMS
Rate of decrease of commutating on-state current (dI/dt)c 3.5 A/ms
Rising ratio of off-state voltage (dV/dt)c 500 V/µs
Package types TO-220AB, TO-220FPAB, D2PAK, I2PAK

Key Features

  • Triac with overvoltage protection
  • Low gate triggering current (IGT < 10 mA)
  • High noise immunity complying with IEC 61000-4-4 standards
  • Snubberless turn-off commutation
  • High off-state reliability with planar technology
  • No external overvoltage protection required
  • Reduces power passive component count
  • Complies with UL standards (file ref: E81734) for TO-220FPAB package

Applications

  • AC mains static switching in appliance and industrial control systems
  • Drive of medium power AC loads such as universal motors in washing machines, compressors for refrigerators or air conditioners, and induction motor drives for dishwashers and clothes dryers
  • Actuator for thermostats in refrigerators or freezers

Q & A

  1. What is the ACST6-7ST used for?

    The ACST6-7ST is used for AC mains static switching in appliance and industrial control systems, and for driving medium power AC loads such as motors and compressors.

  2. What are the key features of the ACST6-7ST?

    The key features include a Triac with overvoltage protection, low gate triggering current, high noise immunity, snubberless turn-off commutation, and high off-state reliability.

  3. What are the operating temperature ranges for the ACST6-7ST?

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

  4. What packages are available for the ACST6-7ST?

    The device is available in TO-220AB, TO-220FPAB, D2PAK, and I2PAK packages.

  5. Does the ACST6-7ST require external overvoltage protection?

    No, the ACST6-7ST does not require external overvoltage protection due to its built-in high voltage clamping device.

  6. What is the maximum on-state rms current for the ACST6-7ST?

    The maximum on-state rms current is 6 A.

  7. What is the gate triggering current for the ACST6-7ST?

    The gate triggering current is less than 10 mA.

  8. Is the ACST6-7ST compliant with any specific standards?

    Yes, it complies with IEC 61000-4-5 and IEC 61000-4-4 standards.

  9. Can the ACST6-7ST be driven directly by a microcontroller?

    Yes, the ACST6-7ST can be driven directly by a microcontroller through a simple gate resistor due to its low gate triggering current.

  10. What is the insulation voltage for the TO-220FPAB package?

    The insulation voltage for the TO-220FPAB package is 2000 V RMS.

Product Attributes

Triac Type:Logic - Sensitive Gate
Voltage - Off State:700 V
Current - On State (It (RMS)) (Max):6 A
Voltage - Gate Trigger (Vgt) (Max):1.5 V
Current - Non Rep. Surge 50, 60Hz (Itsm):45A, 50A
Current - Gate Trigger (Igt) (Max):10 mA
Current - Hold (Ih) (Max):25 mA
Configuration:Single
Operating Temperature:-30°C ~ 125°C (TJ)
Mounting Type:Through Hole
Package / Case:TO-220-3
Supplier Device Package:TO-220
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Similar Products

Part Number ACST6-7ST ACST6-8ST ACST6-7SG ACST6-7SR
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Obsolete Obsolete Obsolete Obsolete
Triac Type Logic - Sensitive Gate Logic - Sensitive Gate Logic - Sensitive Gate Logic - Sensitive Gate
Voltage - Off State 700 V 800 V 700 V 700 V
Current - On State (It (RMS)) (Max) 6 A 1.5 A 6 A 6 A
Voltage - Gate Trigger (Vgt) (Max) 1.5 V 1.5 V 1.5 V 1.5 V
Current - Non Rep. Surge 50, 60Hz (Itsm) 45A, 50A 45A, 50A 45A, 50A 45A, 50A
Current - Gate Trigger (Igt) (Max) 10 mA 10 mA 10 mA 10 mA
Current - Hold (Ih) (Max) 25 mA 25 mA 25 mA 25 mA
Configuration Single Single Single Single
Operating Temperature -30°C ~ 125°C (TJ) - -30°C ~ 125°C (TJ) -30°C ~ 125°C (TJ)
Mounting Type Through Hole Through Hole Surface Mount Through Hole
Package / Case TO-220-3 TO-220-3 TO-263-3, D²Pak (2 Leads + Tab), TO-263AB TO-262-3 Short Leads, I²Pak
Supplier Device Package TO-220 TO-220 D2PAK I2PAK

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