MBRM140T1G | データシート | 価格 | pdf onsemi
- 電圧-DC逆電圧(Vr)(最大): 40V
- 平均整流電流(Io): 1A
- 順方向電圧(Vf)(最大)@If: 550 mV @ 1 A
- パッケージ: DO-216AA

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mbrm140t1g
The MBRM140T1G is an efficient Schottky diode, ideal for high-frequency power supply designs. With a forward voltage drop of just 0.5V (@1A), it’s much lower than regular silicon diodes, reducing power loss and boosting overall system efficiency. It handles up to 40V reverse voltage and 1A average rectified current, with a DPAK (TO-252) package suitable for automatic placement and high-power applications. With a temperature range of -65°C to +125°C, it works reliably in various conditions. Its fast recovery time makes it perfect for high-frequency switching power supplies, inverters, and battery chargers.
mbrm140t1g pinout
ピン番号 | ピン名 | 機能説明 |
1 | カソード(K) | Connected to negative output / cathode |
2 | 陽極(A) | Connected to positive input / anode |
When you use the MBRM140T1G, just keep two main points in mind: connect the anode to your power source or inductor output (current in), and the cathode to your load or capacitor (current out). The cathode is also your heatsink on the back, so solder it onto a large copper area for better cooling. Make sure not to mix up polarity—connecting backwards can cause shorts or damage. In short, this 40V, 1A Schottky diode in a DPAK package is perfect for your high-efficiency rectification needs.
mbrm140t1g equivalent schottky diode
パラメータ | MBRM140T1G | SS14T3G | MBRS140T3G | MBRF140T3G | SS16T3G (Different Specs) |
パッケージ | DPAK(TO-252) | SMA | 中小企業 | D2PAK | SMA |
Average Forward Current (Iお) | 1A | 1A | 1A | 1A | 1A |
Reverse Voltage (VRRM) | 40V | 40V | 40V | 40V | 60V (Higher) |
Forward Voltage Drop (VF) | 0.5V typ @ 1A | 0.5V typ @ 1A | 0.5V typ @ 1A | 0.5V typ @ 1A | 0.55V typ @ 1A (Slightly higher) |
パッケージサイズ | 中くらい | 小さい | 中くらい | 大きい | 小さい |
Suitable for Power Applications | はい | はい | はい | はい | はい |
If you’re thinking about replacing your MBRS140T3G diode, here are some good alternatives. The SS14T3G offers similar performance in a smaller SMA package, great for tight spaces. The original MBRS140T3G has an SMB package that’s ideal for moderate power dissipation. For higher thermal needs, the MBRF140T3G’s larger D2PAK is better but takes more space. Lastly, the SS16T3G handles higher reverse voltages (60V) but has a slightly higher forward drop, which means a bit more power loss—something to keep in mind if you’re sensitive to voltage drops.
mbrm140t1g rectifier circuit example
This diagram shows a bridge rectifier circuit, commonly used to convert AC to DC. In this setup, the MBRM140T1G Schottky diodes help achieve low forward voltage drop and high-efficiency rectification. When AC is input, the four diodes in the bridge rectifier convert both positive and negative half-cycles into a unidirectional DC output. The advantage of Schottky diodes is their low forward voltage drop, reducing power loss and improving efficiency. Their fast recovery time also makes them ideal for high-frequency applications.
mbrm140t1g low forward drop usage
The MBRM140T1G’s low forward voltage drop makes it ideal for efficient power supplies and low-power systems. Schottky diodes have a forward voltage drop of 0.35V to 0.5V, lower than regular silicon diodes, reducing energy loss and improving efficiency. This is especially useful in DC-DC converters and high-frequency switching power supplies, where it reduces power loss. In battery-powered devices like portable gadgets, it extends battery life. It also enhances rectification efficiency in inverters and rectifier circuits, reducing voltage drop and boosting overall performance.
mbrm140t1g smps output diode
The MBRM140T1G Schottky diode is perfect for use in the output stage of switching power supplies (SMPS). Its low forward voltage drop (0.35V to 0.5V) minimizes power loss, boosting efficiency, especially under heavy loads. With fast recovery time, it responds quickly to high-frequency switches, reducing switching losses and maintaining stable, efficient operation. It also helps reduce electromagnetic interference (EMI) in high-frequency applications. With a 1A current handling capability, it’s ideal for medium and small power supply designs.
mbrm140t1g application
The MBRM140T1G is an efficient Schottky diode, widely used in power supplies, low-power applications, and fast-switching circuits. In switching power supplies like DC-DC converters and AC-DC adapters, its low forward voltage drop and quick recovery time improve efficiency and reduce energy loss. In battery chargers, it aids in reverse voltage protection and current rectification, improving charging efficiency for portable devices and wireless communication. It’s also used in motor drive circuits, load rectification, and high-frequency switching circuits to ensure stable operation.