SE12DD-M3/I

Series:	Automotive, AEC-Q101, eSMP®
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	400V
Current - Average Rectified (Io):	3.2A
Voltage - Forward (Vf) (Max) @ If:	1.15V @ 12A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr):	3µs
Current - Reverse Leakage @ Vr:	20µA @ 400V
Capacitance @ Vr, F:	90pF @ 4V, 1MHz
Mounting Type:	Surface Mount
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab) Variant
Supplier Device Package:	TO-263AC (SMPD)
Operating Temperature - Junction:	-55°C ~ 175°C

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Introduction

A SE12DD-M3/I is a component in the Diodes category of electronic devices. It is typically used for rectifying single-phase and three-phase AC power systems. It is also used to protect electrical circuits from over-voltage damage.In this article, we will discuss the application field and working principle of the SE12DD-M3/I. We will also go over how to correctly install and use the device.

Application Field

The SE12DD-M3/I is used primarily for protection against overvoltage caused by lightning strikes or other sources. Its primary application is rectifying single-phase and three-phase AC power systems.The SE12DD-M3/I also has a higher breakdown voltage than other diodes, which makes it ideal for applications that need to withstand higher voltages. Additionally, it is used in several consumer and industrial electrical applications, such as:

• Air conditioners
• Inverters
• Solar panels
• Electronic ballast lighting
• Thermo-tube heaters
• Surge protector circuits
• Power supplies
• UPS/ Computer SMPS
• Motor drives

Working Principle

The SE12DD-M3/I works on a simple principle — when placed in an electrical circuit, the device allows current to flow in one direction only, from the anode to the cathode. This is known as rectification.The SE12DD-M3/I is also able to withstand higher voltages than other diodes. The device works on the principle of avalanche breakdown — if the voltage across the device exceeds its breakdown voltage, the device will “break down” and allow current to flow in both directions. This helps protect circuits from the over-voltage damage caused by events such as lightning strikes.

Installation & Usage

Before installing the SE12DD-M3/I, you should check the device’s datasheet to ensure that it meets the requirements of your application. When installing the device, make sure that it is securely fastened onto the printed circuit board (PCB). When connecting the device to other components, make sure all connections are tight. Loose wires can cause the device to malfunction or even cause an electrical fire. Furthermore, if using the device with sensitive components, make sure it is properly grounded. Proper grounding will reduce the risk of EMI (electromagnetic interference) noise being picked up by other devices in the system.

Conclusion

The SE12DD-M3/I is an essential part of any electrical system that needs to be protected from the risk of over-voltage damage. It is used to rectify single-phase and three-phase AC power systems, as well as for protecting electrical circuits from over-voltage damage. Additionally, its higher breakdown voltage makes it ideal for applications that require withstand higher voltages.When installing and using the device, it is important to take all the necessary precautions to ensure that it is operating properly and safely. This will reduce the risk of any damage to the device, and your electrical system as a whole.

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