43212C-R

DC Resistance (DCR):	2.22 mOhm Max
Height - Seated (Max):	0.390" (9.90mm)
Size / Dimension:	0.909" L x 0.799" W (23.10mm x 20.30mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	106MHz
Q @ Freq:	--
Series:	4300
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	21A
Tolerance:	±15%
Inductance:	2.1µH
Material - Core:	--
Type:	Toroidal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed inductors are commonly used in AC circuits or other circuits with continuous AC signals, such as filters, amplifiers and resonance circuits. The most widely used inductor type is the 43212C-R. This type of inductor is particularly well-suited to applications with low frequencies, as it can handle high voltages while not dissipating large amounts of heat. The 43212C-R inductor is an air-core, ferrite-based inductor with a metal shield. It typically has a high inductance of 0.3mH and a low DC resistance of 0.1Ω. The device also has a high self-resonance frequency, allowing for better stability in higher frequency applications. The high inductance and low DC resistance make the 43212C-R ideal for use in filter and amplifier circuits. The core components in a 43212C-R are two ferrite plates with an air gap between them. Electrical current passes through the plate, creating a magnetic field, while the air gap induces a varying reluctance that creates inductance. This inductance sets the limit for AC frequency, and the higher the frequency, the lower the inductance. When a DC voltage is applied, the inductance remains constant regardless of frequency. The working principle of the 43212C-R can be summed up as follows: when a signal of varying frequency is applied to the device, the ferrite plates and air gap act to create inductance by forming a magnetic circuit. The inductance is then controlled by the width of the air gap, controlling the frequency of the signal. This means that the 43212C-R will have differing amounts of inductance when exposed to different signals of varying frequencies. The 43212C-R is an important device in AC circuits, specifically used as an electrical filter or amplifier. In filtering applications, the 43212C-R is used to block certain frequencies while allowing others to pass, such as in band-pass filters. In amplifiers, the device increases the signal strength by providing additional inductance at higher frequencies. The device is also used in resonance circuits, as it can create inductance that can be used to tune electrical circuits. Overall, the 43212C-R is an integral part of almost any AC circuit or application, providing inductance and frequency control in order to achieve a desired signal. The device is easy to use and can be purchased in a variety of sizes and inductance values. With its high inductance and low DC resistance, the 43212C-R is an excellent choice for filter and amplifier applications.

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