PM1812-R27K Inductors, Coils, Chokes

DC Resistance (DCR):	260 mOhm Max
Height - Seated (Max):	0.134" (3.40mm)
Size / Dimension:	0.177" L x 0.126" W (4.50mm x 3.20mm)
Supplier Device Package:	1812
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25.2MHz
Operating Temperature:	-40°C ~ 100°C
Ratings:	--
Frequency - Self Resonant:	180MHz
Q @ Freq:	40 @ 25.2MHz
Series:	PM1812
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	635mA
Tolerance:	±10%
Inductance:	270nH
Material - Core:	Ferrite
Type:	--
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors are often used in electrical circuits. The PM1812-R27K is one of the most popular inductors in this category. Its construction consists of an iron-steel core and a set of solder-joints, designed to fix the inductor onto PCBs. It also has two leads to connect it to the circuit board.The PM1812-R27K is used in a variety of applications. It can be used in Power Factor Correction (PFC) circuits, as well as for noise suppression and EMI filtering. It can also be used in Voltage Stabilization and Overcurrent Protection circuits. The inductor has a wide operating temperature range and can withstand thermal and electrical shocks.The PM1812-R27K has a natural inductance of 27 mH and is capable of operating at up to 6 A of current. Its inductance tolerance is rated at 5% and it has a low DC resistance of 0.1 ohms, making it ideal for high frequency applications. It is also self-healing, meaning that it can repair itself if it is subjected to over-current or thermal shock. This makes it a reliable and resilient component, suitable for a number of applications.The PM1812-R27K is known for its high frequency stability and low harmonics. Its magnetic shielding ensures that it is free from electromagnetic interference (EMI). This makes it an ideal component for audio applications, and other circuits that require a clean signal.PM1812-R27K inductors are commonly used in power supplies, DC-DC converters, personal electronics, and more. When used in power factor correction circuits, it helps to maintain the power output relative to the input, ensuring the efficiency and reliability of the system. It can also be used to reduce noise and distortions in the signal path.The working principle of PM1812-R27K inductors is based on Faraday’s law. This states that when there is a changing magnetic flux passing through a circuit, an induced voltage will be generated. The magnitude of this voltage depends on the inductance and the rate of change of the magnetic flux. In an PM1812-R27K inductor, as current passes through it, it creates a magnetic field, which results in the generation of opposed voltage. This voltage effectively limits the amount of current that can pass through the inductor. This makes the PM1812-R27K inductor an invaluable component in current regulation and voltage stabilization circuits.In summary, the PM1812-R27K is a popular fixed inductor that is used in a variety of applications. Its construction consists of an iron-steel core and a set of solder-joints to fix it onto the PCB. It has a natural inductance of 27 mH, a low DC resistance of 0.1 ohms, and can withstand up to 6 A of current. Its reliable performance, combined with its high frequency stability and magnetic shielding makes it an ideal component for power supplies, DC-DC converters, and audio applications. The principle of operation of the PM1812-R27K is based on Faraday’s law of induction, where an induced voltage is generated when there is a changing magnetic flux in a circuit.

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