The Leiditech MBR40H100CDM is a high current density surface mount TMBS® (Trench MOS barrier Schottky) diode. It is thin, has a high junction temperature, and uses an aluminum strip as the Clip, providing excellent heat dissipation. It is a high-performance power semiconductor device that combines the advantages of Schottky diode and MOSFET technologies. Its packaging is TO-263M(TO-252AE).

Please refer to the following picture:

The MBR40H100CDM can pin-pin replace Vishay's V40PWM10. Compared with Vishay, our part number offers a higher cost performance.

The parameter comparison list is as follows:

Vishay's High Current Density Surface-Mount TMBS® (Trench MOS Barrier Schottky) Rectifier Ultra Low VF (High Current Density surface Mount TMBS® (Trench MOS Barrier Schottky) rectifier with ultra-low forward voltage drop) series includes the following part numbers. If you need pin-pin replacement, please contact the salesperson of Leiditech.

V40PWM10C, V40PWM60C, V40PWM45C, V40PWM15C, V40PWM12C, V40PWM153C, V40PWM103, V40PWM63C.

1. MBR40H100CDM Performance characteristics

It is a high-performance rectifier diode, and its features are mainly reflected in four aspects: "high, thin, large and good"

l  High current density

Under the same chip area, TMBS can carry a much larger current than traditional Schottky diodes. This means that the same current level can be achieved using a smaller-sized package, which is highly suitable for modern electronic devices with limited space.

l  Thin thickness

The height of the main body is reduced by two-thirds compared to the traditional 263, making it highly suitable for double-sided design PCBS with height limitations.

l  High efficiency and low loss - low VF

When conducting, its own voltage loss is very low. This directly leads to:

Higher efficiency: Energy loss is dissipated in the form of heat. A low VF means less energy waste and higher system efficiency.

Low forward voltage drop: The typical value VF ≈ 0.78V (at 20A).

l  Low reverse leakage current

Due to its unique trench and MOS shielding structure, its leakage current when subjected to reverse voltage is smaller than that of traditional Schottky diodes, especially at high temperatures, this advantage is more obvious.

l  Quick switching performance

Like all Schottky diodes, it is a majority carrier device without the storage effect of minority carriers, so it has an extremely fast switching speed and low switching loss.

l  High reliability

l  High junction temperature: The maximum working junction temperature reaches +175°C.

l  Advantages: It allows for stable operation at higher ambient temperatures, has strong resistance to thermal shock and high reliability.

l  Packaging: It’s using TO-263M packaging, with aluminum tape as the Clip, which has good heat dissipation and high power density.

2、Main Application Introduction

Based on the above characteristics, high current density surface mount TMBS diodes are mainly applied in switching power supplies and power conversion circuits that require high efficiency, high power density and small size, especially as output rectifiers.

l  AC/DC adapter and power supply

Role: It is usually used on the secondary side (output side) for high-frequency rectification, converting the alternating current output by the high-frequency transformer into direct current. Its low VF and high efficiency directly determine the overall efficiency and volume of the adapter.

-       Power adapters for laptops and monitors.

-       Switching power supplies for servers and communication equipment.

-       Built-in power supplies for consumer electronic products such as televisions and game consoles.

l  DC/DC converter

Role: It is sometimes used as a freewheeling diode in synchronous rectification topologies, or as the main rectification diode in asynchronous topologies. Its fast-switching feature is crucial for DC/DC converters operating at high frequencies.

In the on-board power supply of communication infrastructure and data center servers, it is used to convert one DC voltage (such as 48V) to another DC voltage (such as 12V, 3.3V).

In conclusion, high current density surface mount TMBS diodes are key components in modern high-performance, high-power-density switching power supplies. Its main battlefield is the power supply section of various devices, especially those where you want it to be "smaller, cooler and more efficient".

3、The parameters in the specification are as follows

Leiditech Electronic is committed to becoming a leading brand in electromagnetic compatibility solutions and component supply, offering products such as ESD, TVS, TSS, GDT, MOV, MOSFET, Zener, inductors, etc. Leiditech has an experienced R&D team that can provide personalized customization services based on customer requirements and offer the most superior solutions to customers.