Bourns Variable Inductors 12

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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)	Lead Spacing	Minimum Operating Temperature	Maximum Inductance (L)	Terminal Placement	DC Resistance	No. of Functions	Lead Length	Test Frequency	Package Height	Case or Size Code	Manufacturer Series	Construction	Package Length	Shape or Size Description	Series	Terminal Shape	Nominal Inductance (L)	Minimum Inductance (L)	Package Width	Maximum Operating Temperature	Maximum Rated Current
4903	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	No	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	152 nH	Radial		1	0.157 in (3.988 mm)	75 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	128 nH	103 nH	0.402 in (10.2 mm)	105 °C (221 °F)
4901	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	No	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	50 nH	Radial		1	0.157 in (3.988 mm)	80 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	46 nH	41 nH	0.402 in (10.2 mm)	105 °C (221 °F)
9063	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	Yes	No		36	0.312 in (7.924 mm)	-55 °C (-67 °F)	60 mH	Radial	175 ohm	1	0.218 in (5.537 mm)	79 kHz	0.655 in (16.637 mm)	5454	9050	Shielded	0.539 in (13.69 mm)	PCB Mount, Vertical Adjuster	9050	Wire	40 mH	20 mH	0.539 in (13.69 mm)	105 °C (221 °F)	25 mA
4904	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	No	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	252 nH	Radial		1	0.157 in (3.988 mm)	50 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	200 nH	148 nH	0.402 in (10.2 mm)	105 °C (221 °F)
4905	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	No	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	337 nH	Radial		1	0.157 in (3.988 mm)	45 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	265 nH	193 nH	0.402 in (10.2 mm)	105 °C (221 °F)
4907-S	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	Yes	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	311 nH	Radial		1	0.157 in (3.988 mm)	45 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	269 nH	226 nH	0.402 in (10.2 mm)	105 °C (221 °F)
4910	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	No	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	788 nH	Radial		1	0.157 in (3.988 mm)	45 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	624 nH	460 nH	0.402 in (10.2 mm)	105 °C (221 °F)
4908	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	No	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	600 nH	Radial		1	0.157 in (3.988 mm)	45 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	470 nH	339 nH	0.402 in (10.2 mm)	105 °C (221 °F)
9111	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	Yes	No	0.025 in (0.635 mm)	60		-55 °C (-67 °F)	29.45 μH	Radial	4.72 ohm	1	0.215 in (5.461 mm)	2.5 MHz	0.5 in (12.7 mm)	4343	9100	Cased	0.433 in (11 mm)	PCB Mount, Vertical Adjuster	9100	Wire	20.975 μH	12.5 μH	0.433 in (11 mm)	105 °C (221 °F)	225 mA
4902-S	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	Yes	No	0.026 in (0.66 mm)			-55 °C (-67 °F)	71 nH	Radial		1	0.157 in (3.988 mm)	75 MHz	0.562 in (14.275 mm)	4040	4900	Boxed	0.402 in (10.2 mm)	PCB Mount, Vertical Adjuster	4900	Wire	65 nH	59 nH	0.402 in (10.2 mm)	105 °C (221 °F)
9055	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	Yes	No		40	0.312 in (7.924 mm)	-55 °C (-67 °F)	120 μH	Radial	4 ohm	1	0.218 in (5.537 mm)	790 kHz	0.655 in (16.637 mm)	5454	9050	Shielded	0.539 in (13.69 mm)	PCB Mount, Vertical Adjuster	9050	Wire	90 μH	60 μH	0.539 in (13.69 mm)	105 °C (221 °F)	100 mA
9109	Bourns	Variable Inductor	RF Inductor	2	PCB Mount	Yes	No	0.025 in (0.635 mm)	77		-55 °C (-67 °F)	5.7 μH	Radial	1.76 ohm	1	0.215 in (5.461 mm)	7.9 MHz	0.5 in (12.7 mm)	4343	9100	Cased	0.433 in (11 mm)	PCB Mount, Vertical Adjuster	9100	Wire	4.11 μH	2.52 μH	0.433 in (11 mm)	105 °C (221 °F)	368 mA

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.