DR127-3R3

DC Resistance (DCR):	5.67 mOhm
Height - Seated (Max):	0.315" (8.00mm)
Size / Dimension:	0.492" L x 0.492" W (12.50mm x 12.50mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	DR
Shielding:	Shielded
Current - Saturation:	21.5A
Current Rating:	10.5A
Tolerance:	±20%
Inductance:	3.3µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Fixed inductors, also commonly known as coils, are electrical components that store and transmit energy by using magnetic flux. They have a wide range of applications in many industries, from AC power controllers and motor control to amplifying and switching. One of the most commonly used types of inductors is the DR127-3R3. This article will explore its application field and working principle.

DR127-3R3 Application Field

The DR127-3R3 is a fixed inductor, designed for general purpose use in low current DC applications. It is mainly used in switching and linear power supplies, motor controls, audio frequency filtering and other applications that require a low loss solution in high frequencies.DR127-3R3s are designed to be energy efficient, with a low overall profile. This means that they can be integrated into many different types of electronic applications, such as AC power controllers, motor control, switching and power supplies.The design of the DR127-3R3 is optimized for low EMI and high temperature applications, which makes it ideal for use in medical and industrial applications. The inductance range of this device is between 3.2 and 7.6 µH, depending on the size of the core used. The specifications are also low enough to make it suitable for use in circuits with small footprints.

Working Principle

A fixed inductor works based on Faraday’s Law of Induction, which states that a changing magnetic field will induce an electric current in a coil. In a DR127-3R3, the core or coil is wrapped in a specific number of turns. When an AC or DC current is applied to the coil, a magnetic field is created which will induce a current in the coil.The direction of the induced current and voltage depends on the direction of the original applied current. A DR127-3R3 provides a high inductance when used in low currents, allowing for efficient operation. As the current increases, the inductance decreases, causing the voltage gain to drop.

Conclusion

The DR127-3R3 is a fixed inductor that is designed for general purpose use in low current applications. It has a low inductance and is designed to be energy efficient, making it suitable for use in AC power controllers, motor control, switching and power supplies. The working principle of the device is based on Faraday’s Law of Induction, wherein a changing magnetic field induces an electric current in a coil.

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