Chip Inductors

Chip inductors are manufactured using semiconductor material. General specifications, performance specifications and features are all important parameters to consider when searching for chip inductors.

General specifications that are important to consider when searching for chip inductors include technology, core material, packing method, and application.  Technology choices include solenoidal (standard) core, toroidal, bobbin core, wirewound, multilayer, and laminated. Solenoidal cores are rod-shaped cores. Toroid chip inductors look exactly like doughnuts and come in various diameters, thickness, permeability and types depending upon the frequency range of interest. They have a high inductance for the physical space occupied. A bobbin core is a chip inductor with a core with the shape of a bobbin or spool.  Bobbin cores are available with and without leads and in the axial and radial form. A wirewound inductor is an inductor with a core made of wound wires. Multilayer inductors are inductors constructed by layering the coil between the layers of core material.  The coil normally consists of a bare metal material (no insulation). This technology is normally referred to as "non-wirewound". The inductance value can be made larger by adding additional layers for a giving spiral pattern. Laminated chip inductors are ferrite beads with a core that is constructed by stacking multiple laminations on top of each other.  The laminations can be of a variety of materials and thicknesses. Coils can be wound on various core materials, the most popular being iron (or iron alloys, laminations, or powder) and ferrite, a black, nonconductive, brittle magnetic material. These are all ploys to multiply the inductance of a given coil by the "permeability" of the core material. The core may be in the shape of a rod, a toroid (doughnut), or other shapes. Additional core materials include air, ceramic, phenolic, and MPP, molypermalloy powder.  Packing methods for chip inductors include tape reel, tray, tube, or bulk pack.  Common applications include common mode choke, general purpose, high current, high frequency, power inductor, and RF choke.

Common features for chip inductors include shielding and molded case. A shielded inductor is designed for its core to contain the majority of its magnetic field. An inductor with a molded case has a case that has been formed via a moding process.  Common molding processes include injection and transfer molding. Molded inductors typically have well defined body dimensions that consist of smooth surfaces and sharper corners as compared to other case types.

• A Low Noise High Intercept Point Amplifier for 1930-1990 MHz using the ATF-33143 PHEMT - App Note
  The Avago Technologies ATF-33143 is one of a family of high dynamic range, low noise PHEMT devices designed for use in low cost commercial applications in the VHF through 6 GHz frequency range. The...
  (read more)
• Low Noise High Linearity GPS LNA w/ Integrated Shutdown Function and Adjustable Operating Current- App Note
  Avago Technologies' MGA-635T6 is a low noise amplifier designed for GPS application. This amplifier is housed in a ultra thin small leadless package which have small footprint (2 x 1.3 mm2) and very...
  (read more)
• Low Noise Amplifier for 900 MHz using a Low Noise PHEMT - App Note
  The ATF-33143 is described in low noise amplifiers for use in the cellular markets. The circuits are designed for use with 0.032 inch thickness FR-4 printed circuit board material. The amplifiers make...
  (read more)

Pages: 1 - 3 of 251

Part Numbers for Chip Inductors