ZHT431C

series introduction

# ZHT431C Product Series Introduction

## 1. Overview
The ZHT431C product series represents a cutting - edge line of precision voltage reference and adjustable shunt regulators. Engineered with advanced semiconductor technology, these devices are designed to meet the diverse and demanding requirements of modern electronic circuits. Whether it's in power management, battery charging, or sensor calibration, the ZHT431C series offers reliable and accurate voltage regulation solutions.

## 2. Key Features

### 2.1 High Precision
- The ZHT431C series provides an extremely accurate reference voltage. With a typical initial tolerance as low as ±0.5%, it ensures that the output voltage remains stable and within a very narrow range. This high precision is crucial in applications where even small voltage variations can lead to significant performance degradation, such as in high - end audio amplifiers and precision measurement instruments.
- The temperature coefficient of the reference voltage is also very low. It is typically in the range of tens of ppm/°C, which means that the output voltage changes minimally with temperature fluctuations. This allows the ZHT431C to maintain its accuracy in a wide range of operating temperatures, from - 40°C to 85°C, making it suitable for both industrial and consumer applications.

### 2.2 Adjustable Output Voltage
- One of the most significant advantages of the ZHT431C series is its adjustable output voltage. By simply connecting external resistors, users can set the output voltage within a wide range, typically from 2.5V to 36V. This flexibility makes it adaptable to various circuit designs and power requirements. For example, in a multi - voltage power supply system, the ZHT431C can be configured to provide different regulated voltages for different components.

### 2.3 Low Dynamic Resistance
- The ZHT431C has a very low dynamic resistance, usually in the milliohm range. This low resistance ensures that the device can quickly respond to changes in load current without significant voltage drops. As a result, it can maintain a stable output voltage even when the load varies rapidly, which is essential in applications such as switching power supplies and motor control circuits.

### 2.4 High Current Capability
- These devices can handle relatively high currents. The ZHT431C series can sink currents up to several hundred milliamperes, which makes it suitable for driving a wide range of loads. Whether it's powering small integrated circuits or larger power - hungry components, the ZHT431C can provide the necessary current while maintaining voltage stability.

## 3. Package Options
The ZHT431C series is available in a variety of package types to meet different mounting and space requirements:

### 3.1 TO - 92 Package
- The TO - 92 package is a popular through - hole package. It is easy to handle and solder on printed circuit boards (PCBs). This package is suitable for prototyping and low - volume production, as well as applications where space is not a critical constraint. It provides good thermal dissipation and mechanical stability.

### 3.2 SOT - 23 Package
- The SOT - 23 package is a surface - mount package that offers a more compact form factor. It is ideal for high - density PCB designs, such as in mobile devices and portable electronics. The small size of the SOT - 23 package reduces the overall footprint of the circuit, allowing for more efficient use of board space.

## 4. Applications

### 4.1 Power Supply Circuits
- In linear and switching power supplies, the ZHT431C is used as a voltage reference to regulate the output voltage. It can improve the stability and accuracy of the power supply, ensuring

Images for reference

TO-92-3(StandardBody),TO-226_straightlead

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Datasheets

• ZHT431

Partlist