Overview
The MBR745G is a SWITCHMODE™ Schottky Barrier Power Rectifier produced by onsemi. This component is designed for high-efficiency and low power loss, making it suitable for various power management and rectification applications. The MBR745G features a moulded epoxy case with all external surfaces being corrosion-resistant, ensuring durability and reliability in diverse operating conditions.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 45 | V |
| Working Peak Reverse Voltage | VRWM | 45 | V |
| Average Rectified Forward Current (TC = 164°C) | IF(AV) | 7.5 | A |
| Peak Repetitive Forward Current (Square Wave, 20 kHz, TC = 168°C) | IFRM | 7.5 | A |
| Non-Repetitive Peak Surge Current (Surge Applied at Rated Load Conditions Halfwave, Single Phase, 60 Hz) | IFSM | 150 | A |
| Operating Junction Temperature | TJ | -65 to +175 | °C |
| Storage Temperature Range | Tstg | -65 to +175 | °C |
| Maximum Instantaneous Forward Voltage (iF = 7.5 Amps, TJ = 125°C) | vF | 0.48 | V |
| Maximum Thermal Resistance, Junction-to-Ambient | RθJA | 60 | °C/W |
Key Features
- Low Forward Voltage: The MBR745G has a low forward voltage, which reduces power loss and increases efficiency in power rectification applications.
- High Surge Capacity: It can handle non-repetitive peak surge currents up to 150 A, making it robust against transient conditions.
- High Operating Junction Temperature: The device can operate at junction temperatures up to 175°C, ensuring reliability in high-temperature environments.
- Corrosion-Resistant: All external surfaces are corrosion-resistant, enhancing the component's durability.
- Pb-Free Packages: Available in Pb-free packages, making it compliant with environmental regulations.
Applications
- Power Supply Output Rectification: Ideal for use in power supply units where high efficiency and low forward voltage are crucial.
- Power Management: Suitable for various power management circuits requiring high current handling and low power loss.
- Instrumentation: Used in instrumentation applications where reliability and efficiency are paramount.
Q & A
- What is the peak repetitive reverse voltage of the MBR745G?
The peak repetitive reverse voltage (VRRM) of the MBR745G is 45 V.
- What is the average rectified forward current of the MBR745G at 164°C?
The average rectified forward current (IF(AV)) at 164°C is 7.5 A.
- What is the maximum operating junction temperature of the MBR745G?
The maximum operating junction temperature (TJ) is 175°C.
- Is the MBR745G available in Pb-free packages?
- What is the maximum instantaneous forward voltage of the MBR745G at 7.5 A and 125°C?
The maximum instantaneous forward voltage (vF) at 7.5 A and 125°C is 0.48 V.
- What are the typical applications of the MBR745G?
The MBR745G is typically used in power supply output rectification, power management, and instrumentation.
- What is the storage temperature range of the MBR745G?
The storage temperature range (Tstg) is -65 to +175°C.
- Can the MBR745G handle high surge currents?
- Is the MBR745G corrosion-resistant?
- What is the maximum thermal resistance, junction-to-ambient, of the MBR745G?
The maximum thermal resistance, junction-to-ambient (RθJA), is 60 °C/W.
