4 Variable Inductors 7

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Part	Manufacturer	Inductor Type	Inductor Application	No. of Terminals	Package Style (Meter)	Shielded	Surface Mount	Lead Diameter	Minimum Quality Factor (at L-nom)	Minimum Operating Temperature	Terminal Finish	Self Resonance Frequency	Maximum Inductance (L)	Terminal Placement	DC Resistance	No. of Functions	Lead Length	Core Material	Test Frequency	Package Height	Case or Size Code	Manufacturer Series	Special Feature	Construction	Packing Method	Package Length	JESD-609 Code	Shape or Size Description	Series	Terminal Shape	Nominal Inductance (L)	Minimum Inductance (L)	Package Width	Maximum Operating Temperature
E526HNA-100296	Toko	Variable Inductor	RF Inductor	4		Yes	No		100					Radial		1			100 MHz									PCB Mount, Vertical Adjuster		Wire	90 nH
A119ANS-18974Z	Toko	Variable Inductor	RF Inductor	4		Yes	No		110					Dual In-Line		1			7.96 MHz			7P	Inductance is adjustable over 10% from Nominal Value					PCB Mount, Vertical Adjuster		Wire	10 μH
E526HN-100317	Toko	Variable Inductor	RF Inductor	4		No	No		170					Radial		1			100 MHz									PCB Mount, Vertical Adjuster		Wire	110 nH
143-20J12L	Coilcraft	Variable Inductor	RF Inductor	4	PCB Mount	No	No	0.025 in (0.635 mm)	92	-40 °C (-40 °F)	Tin/Silver		1.5 μH	Radial	30 mΩ	1	0.138 in (3.5 mm)	Carbonyl	40 MHz	0.704 in (17.88 mm)	3838	143		Unshielded	Tube	0.38 in (9.65 mm)	e2	PCB Mount, Vertical Adjuster	143 (Tunable)	Wire	1.4 μH	1.3 μH	0.38 in (9.65 mm)	85 °C (185 °F)
144-06J12L	Coilcraft	Variable Inductor	RF Inductor	4	Radial	No	No	0.025 in (0.635 mm)	154	-40 °C (-40 °F)	Matte Tin		306 nH	Radial	13.6 mΩ	1	0.138 in (3.5 mm)	Carbonyl	40 MHz	0.704 in (17.88 mm)	3838	144		Unshielded	Tube	0.38 in (9.65 mm)	e3	PCB Mount, Vertical Adjuster	144 (Tunable)	Wire	250 nH	193 nH	0.38 in (9.65 mm)	85 °C (185 °F)
142-03J08SL	Coilcraft	Variable Inductor	RF Inductor	4	PCB Mount	Yes	No	0.025 in (0.635 mm)	85	-40 °C (-40 °F)	Tin/Silver	550 MHz	121 nH	Radial	9.6 mΩ	1	0.138 in (3.5 mm)	Carbonyl	40 MHz	0.531 in (13.49 mm)	4141			Shielded	Tube	0.411 in (10.44 mm)	e2	PCB Mount, Vertical Adjuster		Wire	120 nH	115 nH	0.411 in (10.44 mm)	85 °C (185 °F)
143-11J12SL	Coilcraft	Variable Inductor	RF Inductor	4	PCB Mount	Yes	No	0.025 in (0.635 mm)	78	-40 °C (-40 °F)	Tin/Silver	270 MHz	540 nH	Radial	19.2 mΩ	1	0.138 in (3.5 mm)	Carbonyl	40 MHz	0.75 in (19.05 mm)	4141			Shielded	Tube	0.411 in (10.44 mm)	e2	PCB Mount, Vertical Adjuster		Wire	468 nH	396 nH	0.411 in (10.44 mm)	85 °C (185 °F)

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.