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Variable Inductors

Variable inductors, also known as adjustable inductors or tunable inductors, are electronic components that are designed to vary the inductance value of a circuit. These components are used in a wide range of electronic applications, including tuning circuits, filters, and resonant circuits.

Variable inductors can be classified into several types based on their specific characteristics and applications. Some of the most common types of variable inductors include:

1. Ferrite core inductors - These inductors consist of a coil of wire wound around a ferrite core.

2. Air-core inductors - These inductors consist of a coil of wire wound around a non-magnetic core, such as a plastic or ceramic rod.

3. Sliding inductors - These inductors consist of a coil of wire wound around a non-magnetic core, which can be adjusted by sliding the core in and out of the coil to vary the inductance value.

Variable inductors are typically characterized by their inductance range, frequency response, and mechanical adjustment range. Inductance can be adjusted by changing the number of turns in the coil, the position of the magnetic core, or the distance between the coils.

Variable Inductors

Available Parts 5

Part# Info Inductor Specifications Physical Characteristics Thermal Characteristics Terminal Characteristics Packaging & Delivery
Part RoHS Manufacturer Description Inductor Type Inductor Application Nominal Inductance (L) Minimum Inductance (L) Maximum Inductance (L) DC Resistance Maximum Rated Current Test Frequency Minimum Quality Factor (at L-nom) No. of Functions Special Feature Manufacturer Series Series Package Shape Case or Size Code Shielded Surface Mount Lead Length Lead Diameter Lead Spacing Core Material Construction Minimum Operating Temperature Maximum Operating Temperature No. of Terminals Terminal Shape Terminal Position Package Length Package Height Package Width Package Style Packing Method Package Diameter
WVL9FJ102K by Vishay Intertechnology

WVL9FJ102K

Vishay Intertechnology

Vishay Intertechnology's WVL9FJ102K is a shielded variable inductor with 1000uH nominal inductance, 12 ohm DC resistance, and 105°C max operating temp. Ideal for applications requiring precise tuning of circuits such as RF filters and oscillators due to its high quality factor and adjustable inductance capabilities.

Variable Inductor

1 mH

12 ohm

141 mA

80

Yes

0.375 in (9.52 mm)

0.02 in (0.508 mm)

0.2 in (5.08 mm)

Ferrite

Cylindrical

-55 °C (-67 °F)

105 °C (221 °F)

0.4 in (10.16 mm)

Radial

Bulk

0.3 in (7.62 mm)

2430-10 by Frontier Electronics

2430-10

Frontier Electronics

2430-10 by Frontier Electronics is a shielded variable inductor with test frequency of 40 MHz. It has a min inductance of 0.382 uH and nominal inductance of 0.41 uH, suitable for RF applications. This PCB mount inductor features vertical adjuster shape, 2 terminals, and high quality factor at L-nom of 82.

Variable Inductor

RF Inductor

410 nH

382 nH

422 nH

40 MHz

82

1

PCB Mount, Vertical Adjuster

Yes

No

2

Printed Wiring Pin

2433-08 by Frontier Electronics

2433-08

Frontier Electronics

VARIABLE INDUCTOR; Inductor Application: RF INDUCTOR; No. of Terminals: 2; Shielded: NO; Surface Mount: NO; Test Frequency: 50 MHz;

Variable Inductor

RF Inductor

342 nH

272 nH

412 nH

50 MHz

68

1

PCB Mount, Vertical Adjuster

No

No

2

Printed Wiring Pin

292SNS-T1366Z by Toko

292SNS-T1366Z

Toko

292SNS-T1366Z by Toko is a Variable Inductor with DUAL IN-LINE terminals, suitable for RF applications at 80 MHz. It offers adjustable inductance over 6% from nominal, with a min quality factor of 50 and nominal inductance of 0.1 uH. Ideal for PCB mounting with vertical adjuster shape and solid lead/PW pin terminals.

Variable Inductor

RF Inductor

100 nH

80 MHz

50

1

Inductance is adjustable over 6% from Nominal Value

PCB Mount, Vertical Adjuster

No

No

5

Solid Lead and Printed Wiring Pin

Dual In-Line

CP55-T308-NP by Sumida

CP55-T308-NP

Sumida

CP55-T308-NP by Sumida is a surface mount variable inductor with dual in-line terminal placement. It has a nominal inductance of 10 uH and a min quality factor of 45, making it suitable for RF applications. Its compact size (6.2mm x 5.6mm x 5.5mm) and adjustable vertical mount make it ideal for PCB integration.

Variable Inductor

RF Inductor

10 μH

45

1

CP

CP55

PCB Mount, Vertical Adjuster

2422

No

Yes

Coil

5

Gull Wing

Dual In-Line

0.244 in (6.2 mm)

0.217 in (5.5 mm)

0.22 in (5.6 mm)

SMT

Tape and Reel