BU1010-M3/45

Series:	--
Packaging:	Tube
Part Status:	Active
Diode Type:	Single Phase
Technology:	Standard
Voltage - Peak Reverse (Max):	1kV
Current - Average Rectified (Io):	10A
Voltage - Forward (Vf) (Max) @ If:	1.05V @ 5A
Current - Reverse Leakage @ Vr:	5µA @ 1000V
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	4-SIP, BU
Supplier Device Package:	isoCINK+™ BU

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IntroductionBridge rectifiers (BRs) are power electronic devices sometimes referred to as “four-leg” or “triple-terminal” devices. BRs are named so as they bridge the AC power line to a DC side, and they can be operated either in forward or reverse direction. The BU1010-M3/45 is a bridge rectifier manufactured by Infineon Technologies and is used in most applications which require rectification of AC power to DC. This article will discuss the application field and working principles of the BU1010-M3/45.Application FieldThe BU1010-M3/45 is used in a wide range of applications from consumer electronics to industrial applications. The most common applications include AC/DC power supplies, power factor correction, solar panel systems, UPS systems, motor drives, switches, and motor starters. Additionally, the BU1010-M3/45 can be used with IGBTs and MOSFETs in phase-shift and active power-factor-correction systems.Typical FeaturesThe BU1010-M3/45 includes typical features including an innovative all-inclusive package, high-temperature solder-resist coating, ultra-low profile and optimized leakage inductance. It is a 3-phase bridge rectifier with a (45⁰) phase shift undirectional, meaning that it can be reversed and used in different directions. This rectifier also features a Schottky barrier diode and an internal EMI filter which helps to reduce EMI and increases the operating temperature range.ConstructionThe BU1010-M3/45 bridge rectifier is basically composed of a three-phase bridge arrangement and a diode bridge, along with a few protective elements. The three-phase bridge arrangement is composed of three main terminals connected in series. This arrangement makes it possible to input a three-phase alternating current on one side and output a DC voltage on the other side. The diode bridge is connected to these terminals in order to reverse the current flow in order to convert the incoming AC power into a DC power. This diode bridge also acts as an isolator to protect the rectifier from over-currents.Working PrincipleThe BU1010-M3/45 works on the principle of rectification. When AC power is fed into the three terminals, the current is passed through the diodes in the rectifier to convert the alternating current into direct current (DC). The current passes through the diodes in one direction and the resulting DC output can be used as is, or passed through a smoothing circuit to reduce its ripple. The diode bridge in the rectifier also helps to reduce any spikes in the current.BenefitsThe BU1010-M3/45 has a number of advantages that make it the preferred choice for many applications. For instance, its high temperature sold-resist coating helps to protect the rectifier from thermal shock, which is a common problem in most rectifiers. It also has a low profile and optimized leakage inductance, which make it suitable for use in high-density systems. The bridge rectifier also has an internal EMI filter which helps to reduce the EMI and increase operating temperature range.ConclusionThe BU1010-M3/45 bridge rectifier is a three-phase device that is used to convert AC power into DC power. It works on the principle of rectification and is composed of three terminals and a diode bridge, along with protective elements. It is suitable for many applications, due to its innovative all-inclusive package, high-temperature solder-resist coating, low profile and optimized leakage inductance. It also has an internal EMI filter which helps to reduce EMI and increase the operating temperature range.

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