PM40-R27M

DC Resistance (DCR):	360 mOhm Max
Height - Seated (Max):	0.126" (3.20mm)
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:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	320MHz
Q @ Freq:	30 @ 25.2MHz
Series:	PM40
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	450mA
Tolerance:	±20%
Inductance:	270nH
Material - Core:	Non-Magnetic
Type:	Molded
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors

PM40-R27M Application Field and Working PrincipleFixed inductors, also sometimes referred to as fixed chokes or RF inductors, are electronic components that are designed to resist changes in current when a voltage or power source is applied. There are a wide range of different types of fixed inductors, each with its own application field and working principle. The PM40-R27M is a radio-frequency (RF) type of fixed inductor, which is used widely for RF signal filtering and coupling applications.The PM40-R27M is a reversible, high-Q, high-power inductor ideal for high frequency RF applications, such as RF power amplifiers, transmitters, and receivers. It has an inductance value of 27nH ±20% with a DC resistance of 2.38 ohms max. The PM40-R27M also has a wide range of operating temperatures from -25 to 85 degrees Celsius and feature an IEC 600068-2-20 vibration class, which makes it suitable for a variety of different applications.The working principle of fixed inductors is based on Faraday\'s law of induction, which states that when a conductor moves relative to a magnetic field, an electromotive force is generated. In a fixed inductor, this principle is applied by introducing an electric current through a coil of wire. This creates a magnetic field which, in turn, induces a voltage in the coil. This voltage causes the current to circulate through the coil in the opposite direction, resisting any changes in the current.The PM40-R27M fixed inductor is mainly used for RF signal filtering and coupling in high frequency applications. This type of inductor is ideal for these applications due to its high-Q, reversibility, and wide range of operating temperatures. Its high-Q means that it can filter out signals with high sensitivity, while its wide range of operating temperatures makes it suitable for a variety of applications.The PM40-R27M also offers certain advantages compared to other inductors. For example, it has a lower power consumption and can be mounted in a compact package. Additionally, its reversible feature means that it can be used in bi-directional applications, such as when coupling an antenna to an RF signal.In conclusion, the PM40-R27M is a highly efficient, reversible, and high-power fixed inductor, ideal for high frequency RF applications such as RF power amplifiers, transmitters, and receivers. It has an inductance value of 27nH ±20% with a DC resistance of 2.38 ohms max, and offers a wide range of advantages, including its ability to filter out high frequency signals, its power efficiency, and its reversible feature.

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