ACM-31-900M-T

Voltage Rating - AC:	--
Package / Case:	Horizontal, 4 PC Pad
Height (Max):	0.079" (2.00mm)
Size / Dimension:	0.118" L x 0.063" W (3.00mm x 1.60mm)
Mounting Type:	Surface Mount
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Series:	ACM-31
Voltage Rating - DC:	50V
DC Resistance (DCR) (Max):	300 mOhm
Current Rating (Max):	370mA
Impedance @ Frequency:	90 Ohms @ 100MHz
Number of Lines:	2
Filter Type:	Signal Line
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Common Mode Chokes

Common Mode Chokes are commonly used in the filtering of voltage and current signals in electronics systems. The ACM-31-900M-T is one such type of component, which is designed to help protect circuits from interference. In this article, we will discuss the application field and working principle of the ACM-31-900M-T.

Application Field

The ACM-31-900M-T is a type of three-phase differential filter, which is used to reduce interference with power supply lines. It is typically used in applications that require filtering for differential mode currents, such as motor drive systems, UPS systems, and frequency converters. The ACM-31-900M-T is designed for use in mains up to 400V, and can be used in applications from 30-900A. The three-phase differential filter is designed to reduce the amplitude of differential mode signals, while allowing common mode signals to pass through.

Working Principle

The ACM-31-900M-T works by using shielded transformer cores with a large number of turns of copper wire. The multiple turns of wire increases the inductance and impedance at the differential frequencies, while decreasing the inductance and impedance at the common mode frequencies. This allows the differential mode signals to be attenuated, while allowing the common mode signals to pass through without attenuation. The ACM-31-900M-T also uses capacitive elements which are inserted in the transformer core and wired in parallel with the windings. This increases the reactance at differential frequencies, and allows the common mode signals to pass through. The capacitive elements also help to provide enhanced protection from external interference.

Conclusion

In conclusion, the ACM-31-900M-T is a type of three-phase differential filter, which is designed to reduce interference from power supply lines. It works by using shielded transformer cores with multiple turns of wire, which create an inductance at the differential frequencies and a reactance at the common mode frequencies. The capacitive elements also provide additional protection from external interference. The ACM-31-900M-T is suitable for applications up to 400V and from 30-900A, making it ideal for motor drives, frequency converters and other power supply systems.

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