STMicroelectronics

DA112S1

DA112S1 Description

The DA112S1 from STMicroelectronics is a surface-mount TVS diode designed for general-purpose protection in electronic circuits. Part of the DA1 series, this obsolete yet robust component offers rail-to-rail steering protection with a reverse standoff voltage of 15V. Packaged in an 8-SOIC tube, it features 6 unidirectional channels, making it suitable for safeguarding sensitive interfaces against transient voltage spikes. Compliant with ROHS3 and REACH Unaffected standards, it ensures environmental and regulatory adherence while maintaining high reliability.

DA112S1 Features

• 15V Reverse Standoff Voltage: Provides stable protection against transient overvoltage events.
• Rail-to-Rail Steering: Ensures effective clamping of voltage surges across the supply rails.
• 6 Unidirectional Channels: Ideal for multi-line protection in data/communication interfaces.
• Surface-Mount (8-SOIC): Compact form factor for space-constrained PCB designs.
• Moisture Sensitivity Level (MSL) 1: Suitable for unlimited floor life under typical storage conditions.
• ROHS3 Compliant & REACH Unaffected: Meets stringent environmental and safety regulations.

DA112S1 Applications

• Consumer Electronics: Protection for USB, HDMI, or other high-speed data ports.
• Industrial Controls: Safeguarding PLCs, sensors, and communication modules from ESD/EMI.
• Automotive Systems: Secondary protection for infotainment and CAN bus interfaces.
• Telecom Equipment: Defending signal lines in routers, switches, and base stations.

Conclusion of DA112S1

The DA112S1 excels in multi-channel transient protection with its rail-to-rail steering capability and compact 8-SOIC package. While marked as obsolete, its 15V clamping performance and unidirectional channels make it a viable choice for legacy designs or replacements in general-purpose circuits. Its compliance with ROHS3 and REACH further ensures alignment with modern environmental standards. For engineers seeking reliable TVS diode solutions in consumer, industrial, or automotive applications, the DA112S1 remains a technically sound option.