In the ocean of electronics, every component plays an indispensable role. The ZM4737A voltage regulator diode undoubtedly shines as a brilliant star in this vast sea, with its outstanding stability performance and wide range of applications, becoming an essential part of circuit design.

 

Slkor Voltage Regulator Diode product photo

Basic Characteristics of ZM4737A

The ZM4737A voltage regulator diode demonstrates its guarding ability for stable voltage with unique performance parameters. Firstly, it boasts a precise 7.5V nominal regulated value,ensuring stable output voltage around 7.5V during circuit operation. Secondly, with a ±5% accuracy, its output voltage is even more stable and reliable, capable of handling power supply fluctuations and load variations effortlessly. Additionally, its 1W power output capability and reverse current of only 10μA at 5V further prove its excellent performance.

Slkor Voltage Regulator Diode specification

Stable Guarding Capability of ZM4737A

In electronic circuits, voltage stability is crucial, and the ZM4737A voltage regulator diode is designed for this purpose. Not only does it provide stable output voltage, but its low impedance characteristic also ensures smooth current flow, further enhancing circuit stability. Whether in power supply circuits, amplifier circuits, or sensor circuits, ZM4737A provides reliable voltage support with its stable performance.

Parameters of Slkor Voltage Regulator Diode

Wide Applications of ZM4737A

Due to its outstanding performance, the ZM4737A voltage regulator diode naturally becomes the preferred component in various electronic circuits. In power supply circuits, it can serve as a reference voltage source, providing stable voltage references for other circuits. In amplifier circuits, it can stabilize bias voltage or operating point voltage, ensuring the amplifier's normal operation. In sensor circuits, it can provide stable reference voltage, improving the measurement accuracy of sensors. Moreover, in fields such as digital circuits, communication equipment, and industrial control devices, ZM4737A finds extensive applications.

Advantages and Challenges of ZM4737A

Although the ZM4737A voltage regulator diode has many advantages, it also faces some challenges in practical applications. Firstly, due to the rapid development of electronic technology, the demand for circuit stability and accuracy is increasing, posing higher requirements for the performance of ZM4737A. Secondly, with the emergence of new types of voltage regulator diodes, ZM4737A faces fierce competitive pressure. However, with its excellent performance and wide range of applications, ZM4737A still maintains its place in the market.

Key Characteristics of Voltage Regulator Diodes

Reverse Breakdown Characteristics

Under the action of reverse voltage, voltage regulator diodes experience reverse breakdown phenomenon when the voltage reaches a critical value (referred to as reverse breakdown voltage Vz). At this point, although the reverse current increases sharply, the reverse voltage remains almost constant, allowing the voltage regulator diode to stabilize the voltage in the circuit.

Regulated Value Vz

The regulated value is the approximate constant voltage that the voltage regulator diode can maintain during reverse breakdown. This value is calibrated by the manufacturer and is generally accurate. The regulated value Vz is an important parameter of the voltage regulator diode and a primary basis for selecting voltage regulator diodes.

Dynamic Resistance Rz

Dynamic resistance Rz represents the ratio of voltage change between the two ends of the voltage regulator diode to the current change. It reflects the quality of the voltage regulator diode's voltage stabilization performance. The smaller the Rz, the better the voltage stabilization performance.

Power Dissipation Pz

Power dissipation Pz is the maximum power that the voltage regulator diode can withstand during reverse breakdown. Power dissipation Pz is determined by the stable voltage Vz and the maximum allowable current Izm passing through the voltage regulator diode. When exceeding the Pz value, the voltage regulator diode may overheat and fail.

Temperature Coefficient α

Temperature coefficient α indicates the degree of change in stable voltage Vz of the voltage regulator diode with temperature variation. The temperature coefficient α can be positive or negative. A positive temperature coefficient voltage regulator diode increases the stable voltage Vz value as the temperature rises, while a negative temperature coefficient voltage regulator diode decreases the stable voltage Vz value as the temperature rises. For general voltage regulator diodes, the temperature coefficient α is a positive value, but its temperature effect can be counteracted by appropriate circuit connections.

Reverse Leakage Current Iz

Reverse leakage current Iz refers to the current flowing through the voltage regulator diode under a specified reverse voltage. This value is usually small, but for some high-sensitivity circuits, reverse leakage current may affect circuit performance.

Response Time

Response time refers to the time it takes for the voltage regulator diode to stabilize voltage from reverse breakdown. This time is crucial for circuits that require rapid response.

Package Form

Voltage regulator diodes are available in various package forms, including plastic encapsulation, glass encapsulation, metal encapsulation, etc. Different package forms of voltage regulator diodes may have performance differences, requiring selection based on specific application scenarios.

About Slkor：
Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories.