STMicroelectronics

TL431ACZT

TL431ACZT Description

The TL431ACZT from STMicroelectronics is a precision adjustable shunt voltage reference with a ±1% tolerance, delivering stable performance across industrial and commercial applications. Housed in a TO-92-3 package and available in Tape & Reel (TR), this ROHS3-compliant and REACH-unaffected component operates within a 0°C to 70°C (TA) range, making it suitable for moderate environments. With an output voltage range of 2.495V to 36V, it supports adjustable output configurations, enabling flexible design integration. The 100 mA output current and 600 µA cathode current ensure efficient power regulation, while its shunt reference topology simplifies circuit design for voltage monitoring and feedback systems.

TL431ACZT Features

• Precision Reference Voltage: 2.495V to 36V adjustable output with ±1% tolerance for high accuracy.
• High Output Current: Supports 100 mA, enabling robust power supply regulation.
• Low Cathode Current: 600 µA minimizes power consumption in standby modes.
• Wide Operating Range: 0°C to 70°C ensures reliability in varied conditions.
• Shunt Reference Architecture: Simplifies voltage feedback loops in power supplies.
• Compact & Reliable: TO-92-3 package with MSL 1 (Unlimited) moisture sensitivity for easy handling.

TL431ACZT Applications

• Voltage Regulation: Ideal for switching power supplies, linear regulators, and battery chargers.
• Error Amplification: Used in feedback control circuits for precise voltage correction.
• Overvoltage Protection: Integrated into surge suppression and crowbar circuits.
• Portable Electronics: Suitable for low-power devices due to its minimal cathode current.
• Industrial Systems: Deployed in automation controls and sensor interfaces requiring stable references.

Conclusion of TL431ACZT

The TL431ACZT stands out as a versatile, high-precision shunt voltage reference, offering adjustability, low power consumption, and robust performance. Its wide voltage range, tight tolerance, and compact form factor make it a preferred choice for power management, error correction, and protection circuits. Whether in consumer electronics, industrial systems, or power supplies, this component delivers reliable voltage stabilization with minimal design complexity. Engineers favor it for its cost-effectiveness, ease of integration, and compliance with environmental standards.