B82725J2802N020

Voltage Rating - DC:	--
Package / Case:	Vertical, 4 PC Pin
Height (Max):	1.575" (40.00mm)
Size / Dimension:	1.591" L x 0.846" W (40.40mm x 21.50mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	ENEC, UR, VDE
Ratings:	--
Operating Temperature:	-40°C ~ 125°C
Voltage Rating - AC:	250V
Series:	B82725
DC Resistance (DCR) (Max):	31 mOhm (Typ)
Current Rating (Max):	8A
Inductance @ Frequency:	3.9mH @ 10kHz
Number of Lines:	2
Filter Type:	Power Line
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Introduction

Common Mode Chokes (CMCs) are components used to suppress common mode interference from power bus systems. The B82725J2802N020 inductor is a CMC which can provide a high performance interfacing solution that can suit a variety of applications. This paper sheds some light on the application field and working principle of the B82725J2802N020 Common Mode Choke.

Application Field

The B82725J2802N020 CMC is designed for use in many applications. It is suitable for power bus lines and related interfaces, such as power supply systems, industrial automation systems, telecommunications and consumer electronics. The device is built to provide superb noise suppression performance in order to improve the overall system reliability.The B82725J2802N020 CMC can also be used in other applications, such as automotive electronics, transportation, medical devices, instrumentation, machines, appliances and audio/video systems.

Physical Characteristics

The size of the B82725J2802N020 is typically 28.0mm x 28.0mm x 11.9mm. The device joints 2 inductors (L1 = 4.7mH, L2 = 5.6mH) in a single package with moldable resin. It supports a rated current of 1.9A, a rated power of 28W, a rated voltage of 250VAC, a jumping voltage of 500VAC, and an insulation resistance of 100MOhm (min.).

Description of Working Principle

The B82725J2802N020 CMC operates by canceling out common mode signals, reducing the level of high frequency contamination. The device works by passing a balanced input signal through two windings, providing symmetric suppression of any noise present in the system.The balanced input signal passes through the two windings, which are wound in opposite directions. As the signal travels through each winding, it experiences opposite phases of the same noise component. As a result, the two signals cancel each other out, reducing the noise level significantly.

Conclusion

The B82725J2802N020 Common Mode Choke is a high performance device which provides excellent emission suppression performance for power bus systems. The device is suitable for a wide range of applications including industrial automation, telecommunications, consumer electronics and transportation. Its unique design allows it to cancel out common mode signals, providing improved noise performance.

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