This Product Selection Guide contains information to help select products in the Adjustable Inductors category on DigiKey.com
An inductor is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. Adjustable inductors use a movable core to modify the electric field and thereby increase or decrease inductance by blocking lines of flux. The unit of inductance is the Henry (H). Mounting options include surface and through-hole with values ranging from 30 nH to 2.5 mH.
SelectionCharacteristics
Inductance: Inductance indicates a device’s opposition to changes in the electrical current flowing through it. Measured in Henrys.
Tolerance: Characterizes the extent of permitted variability of overall device inductance among samples of a given part number, resulting from variations in manufacturing.
Q @ Freq: Characterizes the ratio of a device’s inductive reactance to its series resistance at the specified test frequency.
Mounting Type: Indicates how the device is attached.
Package/Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier’s device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Size/Dimension: The physical dimensions of the device. Typically length X width.
Height: Indicates how far the device will extend above the surface to which it has been attached.
ProductExamples
| MFR PART # | JLC06E110TRSM |
|---|---|
| DIGIKEY PART # | 1956-1090-ND |
| MANUFACTURER | Knowles Johanson Manufacturing |
| DESCRIPTION | ADJUSTABLE INDUCTOR 88NH SMD |
| DATASHEET | Click Here |
| MFR PART # | E558HN-100099=P3 |
|---|---|
| DIGIKEY PART # | TKS2709TR-ND - Tape & Reel (TR) |
| MANUFACTURER | Toko America Inc. |
| DESCRIPTION | ADJUSTABLE INDUCTOR 73NH SMD |
| DATASHEET | Click Here |
SchematicSymbol
Schematic symbol courtesy of Scheme-it. Please see their website for more information and symbols.
MediaLinks
Videos
What is an Inductor
TDK FAQs - Inductor Q Value
Why It Matters: Inductor Construction Types
WEbinar Powered by DigiKey: Inductors
Articles
Design Trade-offs in Integrating an Inductor
The Advantages (and Drawbacks) of DC-to-DC Voltage Converters with Integrated Inductors
Product Training Modules
Inductors
Blogs
Inductor Basics
Using Inductor Core Material and Shape
There Are No Ideal Inductors
TechForum
Measuring Accurate Inductance of an SMD Inductor or Coil
Inductor Behavior : Why Orientation Does Not Matter
Inductors - Current Rating Vs Saturation Current