ACM2012D-900-2P-TL00

Voltage Rating - AC:	--
Package / Case:	0805 (2012 Metric), 4 PC Pad
Height (Max):	0.051" (1.30mm)
Size / Dimension:	0.079" L x 0.047" W (2.00mm x 1.20mm)
Mounting Type:	Surface Mount
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Series:	ACM-D
Voltage Rating - DC:	20V
DC Resistance (DCR) (Max):	300 mOhm
Current Rating (Max):	300mA
Impedance @ Frequency:	90 Ohms @ 100MHz
Number of Lines:	2
Filter Type:	Signal Line
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Common Mode Chokes (CMC) are relatively unexplored components in the field of power electronics and electrical engineering. Traditionally, these components were used to reduce noise interference generated by AC mains and DC power sources in switch mode power supplies. CMC\'s are special inductors designed to capture and dissipate in-phase and out-of-phase high frequency components contained in the power source.

Application field and Working Principle of ACM2012D-900-2P-TL00

ACM2012D-900-2P-TL00 is a common mode choke developed by ACM. This choke helps in reducing EMI/RFI interference from AC and DC power sources. It presents a high impedance between lines, while exhibiting relatively low impedance in the common mode. This choke can be used in various applications such as computer power, industrial power, telecommunications, office automation and medical equipment.The construction of this choke consists of two sets of separate windings, which are electrically connected in series and wound around a single ferrite core. It is designed to capture and reject both common mode and differential mode noise, while allowing AC or DC power to pass.The principle design of the choke allows it to provide a high impedance in the common mode and a low impedance across each separate winding. This helps to isolate the two lines and reduce RFI and EMI emissions, while allowing the power to flow as designed.

Pros and Cons of ACM2012D-900-2P-TL00

The main benefit of using ACM2012D-900-2P-TL00 choke is its ability to reject common-mode noise while providing a low impedance across each separate winding. It also has a wide frequency range and can operate up to 6GHz at very low loss. The design of this choke is also cost effective, making it suitable for many budgets.However, the main drawback of ACM2012D-900-2P-TL00 is its limited power handling capability. This choke is rated for 4A at 36V, which may not be sufficient for some applications. In addition, this choke may not be suitable for applications where the common mode voltage exceeds 30V.

Conclusion

Common Mode Chokes (CMC) are useful components that can be used to reduce EMI/RFI interference from AC and DC power sources. The ACM2012D-900-2P-TL00 choke offers an efficient and cost effective solution for many applications. It has a wide frequency range and can operate up to 6GHz at very low loss. However, its power handling capability is limited and it may not be suitable for applications where the common-mode voltage exceeds 30V.

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