Introduction:

The MMSZ5236B is a precision zener diode tailored for high-voltage regulation, offering reliable and accurate voltage control in electronic circuits. With a VZTyp rating of 6.8V and a ±5% precision, this diode ensures stable and precise voltage output. Additionally, with a maximum power dissipation (PD) of 500mW and an ultra-low reverse current (Ir) of 3nA at 6V, it provides efficient operation and enhanced performance in high-voltage applications.

Slkor Voltage Regulator Diode MMSZ5236B product photo

Slkor Zener diode MMSZ5236B specification

Key Points:

Precision High-Voltage Regulation:

VZTyp of 6.8V with ±5% precision ensures accurate and stable voltage regulation in high-voltage applications.

Efficient Power Handling:

PD rating of 500mW allows for effective dissipation of power, enhancing the diode's performance under varying loads.

Ultra-Low Reverse Current:

Ir of 3nA at 6V minimizes power loss, contributing to improved efficiency and reliability in high-voltage circuits.

Parameters of Slkor Zener diode MMSZ5236B

Discussion of Application Areas

Power Circuits: In power circuits, the MMSZ5236B can serve as a stable voltage reference source, ensuring the stability of the power output. Additionally, it can protect other components in the circuit from damage caused by excessively high or low voltages.

Automotive Electronics: In automotive electronic systems such as the ECU (electronic control unit), sensors, in-car entertainment systems, etc., a stable voltage supply is essential. The MMSZ5236B can ensure the stable operation of these systems in the complex automotive electrical environment.

LED Lighting Systems: LED lighting systems require stable voltage and current to guarantee the longevity and luminous efficacy of the LED bulbs. It can provide a stable voltage output, protecting the LED bulbs from the effects of voltage fluctuations.

Voltage-Current Characteristics of Zener Diodes

Forward Characteristics:

Within the forward operating region, the voltage-current relationship of the Zener diode is similar to that of a regular diode. However, unlike a regular diode, the Zener diode is designed to have a stable voltage drop within its forward operating region.

As the current increases, the voltage across the Zener diode remains stable, allowing it to provide a stable voltage source in the circuit.

Reverse Characteristics:

The Zener diode exhibits a very high reverse resistance and minimal reverse leakage current when the reverse voltage is below its breakdown voltage.

When the reverse voltage reaches or exceeds its breakdown voltage, the Zener diode undergoes breakdown, causing a sudden sharp increase in reverse current while maintaining a constant voltage. This characteristic enables the Zener diode to function as a voltage regulator in the circuit.

Breakdown is reversible, meaning that when the reverse voltage is removed, the Zener diode returns to its normal operating state.

Key Parameters:

● Uz (Stabilized Voltage): Refers to the stable voltage value generated across the terminals of the Zener diode when passing the rated current. For MMSZ5221B, the nominal value is 2.4V with an accuracy of ±5%.

● Iz (Reverse Leakage Current): Indicates the current flowing through the Zener diode when generating a stable voltage. For MMSZ5221B, at 1V reverse voltage, the reverse current is 100nA.

● Rz (Dynamic Resistance): Indicates the ratio of voltage change to current change across the Zener diode. A smaller dynamic resistance corresponds to better voltage stabilization performance.

● Pz (Rated Power Dissipation): Determined by the allowed temperature rise of the chip, it is the product of the stable voltage Vz and the maximum allowable current Izm.

Temperature Coefficient:

The stable voltage of the Zener diode will slightly change with temperature variation. The temperature coefficient describes the relative change in voltage across the terminals of the diode for a 1°C temperature change.

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.