Over 800,000 products available

Passive Components

A passive component is a module that does not require energy to operate, except for the available alternating current (AC) circuit that it is connected to. A passive module is not capable of power gain and is not a source of energy. A typical passive component would be: resistors, inductors, capacitors and transformers which together are required to build any electrical or electronic circuit.

Passive devices can be used individually or connected together within a circuit, either in a series or in a parallel combination to control complex circuits or signals.

Types of Passive Components

  • Capacitors

A capacitor is a component that can gather and hold a charge in a way that is similar to how a battery functions. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates negative charge. It can hold the charge even when the voltage is no longer applied. Different types of capacitors are film capacitors, mica capacitors, ceramic capacitors, electrolytic capacitors, aluminium electrolytic capacitors, tantalum electrolytic capacitors and power factor correction capacitors

  • Resistors

A Resistor is an electrical device that resists the flow of electrical current. Although a resistor does not amplify or shape the electric current in any way its a powerful little device as it enables you to put the brakes on current flow in a very controlled way

  • Inductors

An inductor is a passive device that can store or deliver energy but cannot generate it. An ideal inductor is lossless, meaning that it can store energy indefinitely as no energy is lost as heat. Inductors are sometimes known as coils, chokes, electromagnets and solenoids

  • Ferrite Cores

A ferrite core is a ceramic compound that includes a mix of iron and another type of metal. Ferrite is common in many types of electrical components, including antennas. This magnetic core features wound components, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

169658 Products showing for Passive Components

Sort by
1676 of 999+
Being discontinued
TDK 10 mH Ferrite Leaded Inductor, Max SRF:350 kHz, Q:50, 110 mA Idc, 35 Ω Rdc, HLBC
  • RS Stock No. 880-7250
  • Mfr. Part No. B82145A1106J000
Subtotal (10 units, in bags of 10)
£4.75(exc. VAT)
£0.475/unit
Temporarily out of stock
Murata Ferrite Bead 0.8 mm (Surface) (0603) (Chip Ferrite Bead), 1000 Ω impedance at 100 MHz, 1200 Ω impedance at 1 GHz
  • RS Stock No. 792-6261
  • Mfr. Part No. BLM18HK102SN1D
Subtotal (25 units, in bags of 25)
£0.675(exc. VAT)
£0.027/unit
Limited stock
KEMET R76_125C Film Capacitor, ±5 %, 220 nF 2 kV dc 700V ac, Through Hole
  • RS Stock No. 192-8723
  • Mfr. Part No. R76UR322050H3J
Subtotal (1 unit)
£5.20(exc. VAT)
£5.20/unit
Temporarily out of stock
CHEMI-CON 1200 μF Capacitor 35V dc, Through Hole - EKY-350ELL122ML20S Radial Lead
  • RS Stock No. 812-2751
  • Mfr. Part No. EKY-350ELL122ML20S
Subtotal (5 units, in packs of 5)
£2.84(exc. VAT)
£0.568/unit
In Stock
Fair-Rite Ferrite Core 6.3 mm 32.3 mm
  • RS Stock No. 255-5076
  • Mfr. Part No. 0446164251
Subtotal (196 units, in boxes of 196)
£179.732(exc. VAT)
£0.917/unit
Temporarily out of stock
Isabellenhutte VMK 12 mΩ, 1206 Zeranin Resistor ±1 % 1.5 W
  • RS Stock No. 192-9975P
  • Mfr. Part No. VMK-R012-1.0-U
Subtotal (10 units, supplied on a continuous strip)
£10.52(exc. VAT)
£1.052/unit
Currently unavailable
KITAGAWA INDUSTRIES Openable, Diameter 5.5 mm Ferrite Sleeve 18.4 mm
  • RS Stock No. 283-7417
  • Mfr. Part No. GRFC-5
Subtotal (1 unit)
£4.67(exc. VAT)
£4.67/unit
In Stock
Vishay 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 732-928
  • Mfr. Part No. VJ0805Y104KXAAT
Subtotal (1 unit, on tapes of 1)
£0.23(exc. VAT)
£0.23/tape
Currently unavailable
Alps Alpine RK 168 100 kΩ Rotary Potentiometer 1-Turns 4-Gang Through Hole, RK16814MGA0K
  • RS Stock No. 154-8223
  • Mfr. Part No. RK16814MGA0K
Subtotal (1 unit, in bags of 1)
£21.64(exc. VAT)
£21.64/bag
Currently unavailable
WIMA FKP2 Film Capacitor, ±5 %, 1 nF 100 V dc 63V ac, Through Hole
  • RS Stock No. 484-2038
  • Mfr. Part No. FKP2/1000/100/5
Subtotal (10 units, in packs of 10)
£6.89(exc. VAT)
£0.689/unit
In Stock
Vishay 22000 μF Capacitor 100V dc, Screw
  • RS Stock No. 280-3364
  • Mfr. Part No. MAL210129223E3
Subtotal (1 unit)
£79.05(exc. VAT)
£79.05/unit
Currently unavailable
Vishay TNPW 0.034 mΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - TNPW040234K0BEED
  • RS Stock No. 262-0635
  • Mfr. Part No. TNPW040234K0BEED
Subtotal (10 units, on tapes of 10)
£1.27(exc. VAT)
£0.127/unit
Temporarily out of stock
Murata Ferrite Bead 0.85 mm (Surface) (2012) (Ferrite Bead), 180 Ω impedance at 100 MHz
  • RS Stock No. 181-1379
  • Mfr. Part No. BLM21SP181SZ1D
Subtotal (250 units, on reels of 250)
£28.75(exc. VAT)
£0.115/unit
Temporarily out of stock
TDK 3 μF Multilayer Ceramic Capacitor, 500V dc, ±20 %, Surface
  • RS Stock No. 188-0286
  • Mfr. Part No. B58035U5305M052
Subtotal (100 units, on reels of 100)
£1,138.00(exc. VAT)
£11.38/unit
In Stock
Wurth Elektronik 20 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft, Through Hole
  • RS Stock No. 185-4446P
  • Mfr. Part No. 482020514001
Subtotal (2 units, supplied in a tray)
£7.41(exc. VAT)
£3.705/unit
Currently unavailable
Alps Alpine RK09K 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Through Hole, RK09K1130A8G
  • RS Stock No. 172-6248
  • Mfr. Part No. RK09K1130A8G
Subtotal (1000 units, in boxes of 1000)
£809.00(exc. VAT)
£0.809/unit
In Stock
Panasonic, V Surge Absorber 430 pF 10 A, Varistor 360 V
  • RS Stock No. 785-8840
  • Mfr. Part No. ERZE10A361
Subtotal (25 units, in packs of 25)
£3.025(exc. VAT)
£0.121/unit
In Stock
Wurth Elektronik 10 mH Manganese Zinc Common Mode Choke, 3 A Idc, 105 mΩ Rdc 250V ac, WE-CMB
  • RS Stock No. 489-0346
  • Mfr. Part No. 744824310
Subtotal (1 unit)
£4.70(exc. VAT)
£4.70/unit
In Stock
Wurth Elektronik 1.8 mH Ferrite Common Mode Choke, Max SRF:10 kHz, 14 A Idc, 7.9 mΩ Rdc 250V ac, WE-CMB
  • RS Stock No. 756-8433
  • Mfr. Part No. 7448261418
Subtotal (1 unit)
£18.44(exc. VAT)
£18.44/unit
In Stock
Murata Power Solutions 22 mH Radial Inductor, Max SRF:1 kHz, 70 mA Idc, 48 Ω Rdc, 1300R
  • RS Stock No. 905-4970
  • Mfr. Part No. 13R226C
Subtotal (5 units, in bags of 5)
£2.50(exc. VAT)
£0.50/unit
1
1676
8483
Results per page

Guides & Articles

LED Resistor Value Calculator
A calculator designed to help you understand what resistance value you require from your LED resistor, in order to ensure safety for your LED lighting.
Learn more
Resistors Guide
What are the different types of resistors? Learn more in our comprehensive guide.
Read more
Potentiometers Guide
Our potentiometers guide will help you understand their uses, how they work, the various types and characteristics.
Read more
A Guide to Voltage Controlled Oscillators
This guide covers voltage controlled oscillators, explaining what they are, the different types available, and examples of how they fit into a circuit.
Explore VCOs

Related links