ACST1220H-8BTR

$1.65

Description：Linear IC's
Series：-

SKU:5e0ba3a35e4d Category: SCRs Brand: STMicroelectronics

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Product introduction

ACST1220H-8BTR is listed in the Scrs range at ChipApex. The manufacturer field lists STMicroelectronics. Its product description is Linear IC's. Review the specifications below when checking this part for your BOM.

Scrs specifications for ACST1220H-8BTR

Description：Linear IC's
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Voltage - Off State：800 V
Voltage - Gate Trigger (Vgt) (Max)：1 V
Current - Gate Trigger (Igt) (Max)：20 mA
Current - Hold (Ih) (Max)：30 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：100A, 110A
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 150°C (TJ)
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package：DPAK
Voltage - On State (Vtm) (Max)：1.55 V
Current - On State (It (AV)) (Max)：-
Current - On State (It (RMS)) (Max)：12:00 AM
Current - Off State (Max)：1 µA

Scrs datasheet and documents for ACST1220H-8BTR

ACST1220H-8BTR

Scrs Overview

The ACST1220H-8B is a 12 A AC switch with self-overvoltage protection, featuring an 800 V symmetric blocking voltage and a maximum junction temperature of 150 °C. It utilizes DPAK power packaging and offers snubberless performance with high static immunity dV/dt of 2,000 V/μs at 150 °C and strong dynamic commutation (dI/dt)c of 9 A/ms at 150 °C. The device has a low gate current triggering of only 20 mA. It embeds a Triac structure with a high voltage clamping device to absorb inductive turn-off energy and withstand line transients per IEC 61000-4-5 standards.

Scrs Feature Summary

Self-overvoltage protection via integrated high voltage clamping device
High junction temperature capability up to 150 °C
Snubberless design with high static dV/dt immunity and strong dynamic commutation
Low gate current triggering for simplified drive circuits

Scrs Applications

Inrush current limiting circuits
Heating resistor control and solid state relays
Capacitor discharge circuits

Scrs Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct package type and delivery mode. Confirm environmental compliance requirements such as halogen-free molding and lead-free plating. Check for any recent document revisions that may impact specifications or ordering information before finalizing procurement decisions.

Scrs Selection Notes

Select this component for applications requiring robust overvoltage protection without external snubbers. Ensure the thermal management design accommodates the specified junction-to-case thermal resistance. Verify that the load characteristics align with the non-repetitive surge peak on-state current limits and the critical rate of rise of on-state current specifications.

Scrs Part Context

This device belongs to the ACST power switch family built around Application Specific Discrete (A.S.D.) technology. It serves as a rugged alternative to conventional Triacs for home appliances and industrial systems. The series provides enhanced noise immunity and turn-off commutation capabilities compared to standard devices.

Scrs Replacement Considerations

ACST1220H-8B

Scrs FAQ

How does the ACST1220H-8B handle overvoltage?

It features a self-overvoltage protection mechanism using a high voltage clamping device that absorbs inductive turn-off energy and withstands line transients described in IEC 61000-4-5 standards.