MB6S Rectifier Bridge Specifications, Working Principle and Features
20 February 2024
Ⅳ. Circuit schematic diagram of MB6S
Ⅴ. What are the features of MB6S?
Ⅵ. Absolute maximum ratings of MB6S
Ⅶ. How to choose MB6S rectifier bridge?
Ⅷ. Are the rectifier bridge MB6F and MB6S the same?
In the field of electronic engineering, a rectifier is a common electronic device used to convert alternating current (AC) into direct current (DC). Among them, MB6S is a single-phase full-bridge rectifier, suitable for rectification and filtering of AC power supply. It uses surface mount technology and has the characteristics of small size, light weight and high reliability. Whether you're an electronics enthusiast or a professional, this guide is designed to give you a comprehensive understanding of the MB6S.
MB6S is a rectifier bridge used to convert alternating current into direct current. Among them, the number "6" means that its maximum reverse peak voltage and maximum DC blocking voltage are both 600V, and the "S" at the end means that it is a patch package type. The rectifier bridge uses a bridge rectifier circuit composed of four diodes. This design has the characteristics of simple structure and high reliability. Under forward voltage conditions, the MB6S rectifier bridge can effectively convert AC signals into DC signals, with low forward voltage drop and high rectification efficiency. Therefore, MB6S rectifier bridge has been widely used in chargers, electronic equipment, power adapters, communication equipment and other fields.
Alternatives and equivalents:
• HD06
• MBS4
• MB6S-E3
• The power consumption of MB6S is 1.4W.
• Its reverse current is 5uA.
• MB6S is produced by onsemi.
• The installation method of MB6S is SMD or SMT.
• Its operating temperature is -55°C to 150°C.
• It comes in SOIC-4 package and tape and reel packaging.
• Its forward current is 500mA and its forward voltage is 1 V.
• The length of MB6S is 4.9 mm, the width is 4.2 mm, and the height is 2.7 mm.
• MB6S belongs to the category of bridge rectifiers.
MB6S is a single-phase full-wave bridge rectifier mainly used to convert alternating current to direct current. Here's how it works:
1. Positive half cycle work
When the input voltage is a sine wave and a positive half cycle, the D1 diode is turned on and the D2 diode is turned off. At this time, the current enters the MB6S from the input point, passes through the D1 diode, then enters the load, and then returns to the negative pole of the power supply, forming a closed current loop. At the same time, capacitor C1 will start to be charged. During the charging process, the load receives current and generates a forward DC voltage.
2. Negative half cycle work
When the input voltage is a sine wave and a negative half cycle, the D2 diode is turned on and the D1 diode is turned off. At this time, the current enters the MB6S from the input point, passes through the D2 diode, then enters the load, and then returns to the negative pole of the power supply, forming a closed current loop. At the same time, capacitor C1 will continue to be charged. During the charging process, the load will also receive current and generate a forward DC voltage. By continuously repeating this process, MB6S can convert alternating current into stable direct current for powering electronic devices.
On the surface of the chip, the two pins marked with wavy lines are AC voltage input pins, while the other two pins are responsible for DC voltage output. The chip integrates a rectifier circuit composed of four rectifier diodes. This circuit schematic shows how to obtain a smoother DC output through the rectification and filtering process. In order to improve the smoothness of the output, we usually connect an external filter capacitor to the output end.
It works quite intuitively. Suppose the load is a small lamp. When the alternating current is in the positive half cycle, the path of the current is as follows:
Current flows from one of the AC input pins, through the rectifier diode, then through the small lamp, and finally back to the other AC input pin. In this process, the rectifier diode allows current to flow in only one direction, thereby converting alternating current into direct current. In the same way, when the alternating current is in the negative half cycle, the current path will be adjusted accordingly.
When the alternating current is in the other half cycle, the path of the current is as shown in the figure below.
The net effect is that a forward voltage is output at the output during each half-cycle of the AC voltage. Subsequently, through the processing of the capacitor, a relatively ideal smooth DC voltage will be generated at the output end.
MB6S has the following features:
• Good stability: The stable electrical performance of MB6S rectifier bridge can ensure the stability and reliability of power supply output and reduce the risk of electronic equipment failure.
• Wide application: MB6S is suitable for a variety of electronic equipment and power supplies that need to convert AC to DC, such as switching power supplies, chargers, power adapters and so on.
• High rectification efficiency: MB6S has high efficient rectification performance, which can effectively convert AC power to DC power to meet the needs of various electronic devices and power supplies.
• High reliability: MB6S adopts strict production process and high quality raw materials, which ensures the high reliability and long service life of this component, and it can withstand all kinds of harsh working environments.
(Values are at TA = 25°C unless otherwise noted)
Stresses exceeding those listed in the maximum ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.
When choosing MB6S rectifier bridge, we need to consider the following factors:
1. Reliability: We should choose those MB6S rectifier bridges with reliable quality and well-known brands, which can ensure that the rectifier bridges we get not only have excellent performance, but also have good performance in terms of service life, safety and reliability.
2. Current: When choosing MB6S rectifier bridge, we need to consider its maximum current tolerance. If the current is too high, it may cause the diode to burn out. Therefore, when selecting, we need to choose the right model according to the current size in the actual application.
3. Heat dissipation: MB6S rectifier bridge will generate a certain amount of heat when working, and needs to be processed for heat dissipation. In the selection, we need to consider its thermal performance and whether to add heat sinks and other auxiliary cooling equipment.
4. Voltage: In addition, we also need to consider its maximum reverse voltage tolerance. If the reverse voltage is too large, it may lead to diode breakdown. Therefore, when selecting, we need to choose the right model according to the actual application of the voltage size.
MB6S and MB6F are both rectifier bridges with similar functions. They may differ in appearance, but their internal structure and working principle are basically the same. A rectifier bridge is a circuit of four diodes used to convert alternating current (AC) to direct current (DC). Both the MB6S and MB6F are single-phase, full-bridge rectifiers with the same nominal voltage and current ratings. However, it is important to note that there may be some minor differences between the MB6S and MB6F, such as maximum normal operating current, maximum forward voltage drop, and maximum reverse withstand voltage. These differences may affect their specific application scenarios and performance requirements. When selecting a suitable rectifier, we need to carefully review the device specifications and datasheets according to the specific circuit design and application requirements to ensure that the selected rectifier meets the required performance and parameter requirements.
Frequently Asked Questions
1. What is MB6S?
The MB family of bridge rectifiers is a 0.5 A rectifier family that achieves high surge current absorption within a very small foot print. Within its small 35 mm2 form factor, the MB family shines in its surge capability.
2. What is the input voltage of the MB6S?
MB6s Bridge Rectifier Voltage Range - 200 to 1000 Volts.
3. What is the function of the MB6S?
The MB6S rectifies alternating current (AC) voltage into direct current (DC) voltage in electronic circuits.
4. What does a bridge rectifier do?
A bridge rectifier, also known as a diode bridge, is a type of discrete semiconductor module product. They are primarily designed to convert AC input from mains power to a DC output, i.e. usable device power.
