What Is MB10S Bridge Rectifier?

Ⅰ. What is a bridge rectifier?

Ⅱ. Overview of MB10S bridge rectifier

Ⅲ. Symbol, footprint and pin configuration of MB10S bridge rectifier

Ⅳ. Technical parameters of MB10S bridge rectifier

Ⅴ. Features of MB10S bridge rectifier

Ⅵ. Working principle of MB10S bridge rectifier

Ⅶ. Absolute maximum ratings of MB10S bridge rectifier

Ⅷ. Advantages and disadvantages of MB10S bridge rectifier

Ⅸ. How to detect the quality of MB10S bridge rectifier?

Ⅹ. What are the applications of MB10S bridge rectifier?

Bridge rectifier, also called rectifier bridge stack, is the most commonly used circuit that uses the unidirectional conductivity of diodes for rectification. Compared with single-phase half-wave rectifier circuits and full-wave rectifier circuits, bridge rectifiers have the advantages of high output voltage and small output ripple. Rectifiers are mainly divided into half-wave rectifiers (HWR) and full-wave rectifiers (FWR). Full-wave rectifiers can be divided into center-tap full-wave rectifiers and bridge full-wave rectifiers.

Bridge rectifiers are mainly used in power circuits to convert alternating current into direct current. Through the processing of bridge rectifier, we can obtain smooth DC power supply to provide stable DC voltage for various electronic devices.

MB10S is an integrated bridge rectifier in a small SOIC-4 package, which can absorb surge current in a very small space. It has the ability to absorb large surge currents and can support IFSM ratings up to 35A. They are also rated for breakdown voltages up to 1000V, making them ideal for power supplies that require a small amount of surge capability. MB10S uses GPP chip material and integrates 4 chips internally. All chip sizes are 46MIL. Its leakage current is 5 microamps and its surge current Ifsm is 30A.

In addition, the rectifier bridge MB10S consists of four diodes, two of which are connected together to form a positive pole, and the other two diodes are connected together to form a negative pole. This compact design makes the MB10S rectifier bridge easier to install and wire.

Replacement and equivalent:

• DB107

• KBL04

• MB1S

The MB10S bridge rectifier has a total of 4 pins. The pin names and descriptions are as follows:

Pin 1 (+)：Output positive terminal

Pin 2 (-): Output negative terminal

Pin 3 (~): AC input terminal

Pin 4 (~): AC input terminal

• Reverse polarity protection: MB10S usually has reverse voltage protection, which can prevent reverse voltage from causing damage to circuits and connected equipment. When the direction of the current is reversed, it can automatically cut off the power supply to protect the safety of circuits and equipment.

• High efficiency: The utilization of four diodes in the MB10S bridge rectifier circuit generally results in a relatively high rectification efficiency, which aids in minimizing energy wastage.

• High voltage tolerance: It has a high voltage tolerance and can adjust the input voltage within a certain range. This makes it suitable for a variety of power applications, including low voltage and high voltage applications.

• Durability: The MB10S bridge rectifier boasts high reliability and an extended lifespan, owing to its high-performance silicon construction.

MB10S functions as a bridge rectifier circuit, employing four diodes to harness their unidirectional conduction properties for the conversion of alternating current into direct current. Specifically, when the input alternating current is in the positive half cycle, the two diagonal diodes conduct, directing the current to the negative pole. When the input alternating current is a negative half cycle, the other two diagonal diodes conduct, directing the current to the positive pole. Through alternating conduction, the rectifier bridge MB10S completes the conversion of alternating current to direct current.

    (Values are at TA = 25°C unless otherwise noted)

1. Advantages of MB10S bridge rectifier

(1) Good stability: It has large surge and small leakage current, which helps to improve the stability of the rectifier.

(2) Low power consumption: Compared with other rectifier devices, MB10S has lower power consumption, which helps reduce the heat dissipation pressure of the power supply.

(3) Wide temperature range: MB10S has an operating temperature range of -55°C to 150°C, and can maintain stable performance in a wide temperature range.

(4) High efficiency: MB10S uses GPP chip material, which has high conversion efficiency and can reduce power loss.

2. Disadvantages of MB10S bridge rectifier

(1) Long recovery time: Although the response time of MB10S can reach 500 ns, in high-frequency and high-efficiency circuits, this response time will become the bottleneck of circuit performance.

(2) Small size: Due to the small size of MB10S, it requires more space for heat dissipation, so it may not be suitable in some situations.

(3) Higher price: Compared with general rectifier components, the price of MB10S is higher, which will increase the cost of the entire system.

1. Voltage method

We adjust the multimeter to the diode setting, touch the red test lead to the positive electrode of the rectifier bridge, and the black test lead to the negative electrode of the rectifier bridge to test the voltage across the diode of the rectifier bridge. Under normal circumstances, the positive electrode displays a positive value, about 0.7V; the negative electrode displays a negative value, about -0.7V. If the measured voltage is abnormal, it means that the diode of the rectifier bridge is faulty. We need to check and repair in time to ensure the safety and normal operation of the circuit.

2. Resistance method

We first need to disconnect the power supply to the rectifier bridge circuit board, and then use the resistance setting of the multimeter. We touch the red test lead to the positive electrode of the rectifier bridge and the black test lead to the negative electrode to test the resistance value of the rectifier bridge. Under normal circumstances, both the forward resistance value and the reverse resistance value should be infinite, or the forward resistance value should be close to zero and the reverse resistance value should be infinite. If the measured forward resistance value or reverse resistance value is abnormally small, too large, or the resistance value is unstable, it means that the rectifier bridge is faulty.

1. Lighting application: MB10S bridge can be used in certain lighting situations, especially when a stable DC power supply is required, such as light-emitting diodes.

2. Motor driver: It is also suitable for industrial and automation applications to convert AC power into DC power to power DC motors.

3. Power supply: MB10S bridge rectifier can successfully convert standard AC power into DC power, which can be used by various electronic devices and circuits. It is suitable for many application scenarios including electronic equipment, small motors, and lighting equipment.

4. Charger: MB10S bridge rectifier can be used to manufacture battery chargers, such as chargers for mobile phones, wireless devices, laptops and other portable devices. In addition, it can convert power from a home AC outlet into DC power suitable for charging, providing sufficient power for devices.

Frequently Asked Questions

1. What is the use of MB10S?

The MB10S is suitable for AC to DC bridge full-wave rectification for SMPS, LED lighting, adapter, battery charger, home appliances, office equipment, and telecommunication applications.

2. What is the package type of the MB10S diode?

MB10S diodes are often available in a single in-line package (SIP) or dual in-line package (DIP).

3.What is the input voltage of MB10S?

The MB10S is a 0.5A amp single phase glass passivated bridge rectifier, 50 to 1000 volts.

4. Are MB10F and MB10S the same?

As you suggested, the two components are almost identical but in terms of thermal resistance the MB10F component is better, having a lower thermal resistance than the MB10S it can dissipate heat better. while for the MB10S it is on the side near the positive terminal.