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

166940 Products showing for Passive Components

Sort by
In Stock
Murata, LQM, 1206 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, 3.3 μH Multilayer ±20 % 800 mA Idc
  • RS Stock No. 786-7184
  • Mfr. Part No. LQM31PN3R3M00L
Subtotal (1 bag of 10 units)
£1.13(exc. VAT)
£0.113/unit
Stocked by manufacturer
Amphenol Procom ProFin G2-430-S/S/S/S/S Disc Antenna with SMA Connector, 400 MHz, 6 GHz, 2G, 3G, 4G, 5G, Cellular, GNSS,
  • RS Stock No. 859-396
  • Mfr. Part No. ProFin G2-430-S/S/S/S/S
Subtotal (1 unit)
£186.99(exc. VAT)
£186.99/unit
Temporarily out of stock
Vishay 910 Ω Thin Film Resistor 0.6 W 1 % MRS25000C9100FCT00
  • RS Stock No. 683-4278
  • Mfr. Part No. MRS25000C9100FCT00
Subtotal (1 pack of 25 units)
£2.13(exc. VAT)
£0.085/unit
Temporarily out of stock
Murata, LQG15HN, 1005 Unshielded Wirewound Surface Mount Inductor with a Non-Magnetic Ceramic Core, 4.7 nH Multilayer
  • RS Stock No. 169-2764
  • Mfr. Part No. LQG15HN4N7S02D
Subtotal (1 reel of 10000 units)
£160.00(exc. VAT)
£0.016/unit
Temporarily out of stock
Wurth Elektronik 3029100100150 Shielding Strip With Solder 10 mm x 15mm x 10 mm
  • RS Stock No. 212-0513
  • Mfr. Part No. 3029100100150
Subtotal (1 reel of 150 units)
£88.80(exc. VAT)
£0.592/unit
In Stock
Panasonic ERJPA3 75 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 862-7054P
  • Mfr. Part No. ERJPA3F7502V
Subtotal 100 units (supplied on a continuous strip)
£3.00(exc. VAT)
£0.03/unit
In Stock
Bourns, SRP1038WA, 1038 Shielded Power Inductor with a Metal Alloy Powder Core, 1.5 μH ±20 % 22 A Idc Q:20
  • RS Stock No. 247-6032
  • Mfr. Part No. SRP1038WA-1R5M
Subtotal (1 unit)
£1.34(exc. VAT)
£1.34/unit
Currently unavailable
Murata Ferrite Bead 800 μm (Surface) (0603) (Chip Ferrite Bead), 330 Ω impedance at 100 MHz
  • RS Stock No. 724-1292
  • Mfr. Part No. BLM18AG331SN1D
Subtotal (1 pack of 25 units)
£0.13(exc. VAT)
£0.005/unit
In Stock
Panasonic ERJPA3 330 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.33 W
  • RS Stock No. 862-6903P
  • Mfr. Part No. ERJPA3F3300V
Subtotal 100 units (supplied on a continuous strip)
£3.50(exc. VAT)
£0.035/unit
In Stock
Murata, LQG, 1005 Unshielded Wirewound Surface Mount Inductor with a Non-Magnetic Ceramic Core, 0.022 μH Multilayer ±5 %
  • RS Stock No. 169-2767
  • Mfr. Part No. LQG15HS22NJ02D
Subtotal (1 reel of 10000 units)
£160.00(exc. VAT)
£0.016/unit
In Stock
Panasonic ERJPA3 220 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 862-6849P
  • Mfr. Part No. ERJPA3F2203V
Subtotal 100 units (supplied on a continuous strip)
£2.90(exc. VAT)
£0.029/unit
In Stock
RS PRO 80 dB Through Hole Continuous External 6.8 mm Piezo Buzzer Component 1 V ac Min 20V ac Max
  • RS Stock No. 511-7670P
Subtotal 1 unit (supplied in a box)
£3.26(exc. VAT)
£3.26/unit
In Stock
Vishay Aluminium Electrolytic Capacitor 100V dc, Through Hole Axial
  • RS Stock No. 328-960P
  • Mfr. Part No. MAL213836109E3
Subtotal 5 units (supplied on a continuous strip)
£11.26(exc. VAT)
£2.252/unit
In Stock
Murata Power Solutions, 5000 Surface Mount Common Mode Choke 470 μH -30 → 50 % 700 mA Idc
  • RS Stock No. 715-7083P
  • Mfr. Part No. 50474C
Subtotal 1 unit (supplied on a continuous strip)
£1.39(exc. VAT)
£1.39/unit
Temporarily out of stock
Panasonic ERJPA3 1.3 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W
  • RS Stock No. 862-6754P
  • Mfr. Part No. ERJPA3F1301V
Subtotal 100 units (supplied on a continuous strip)
£3.50(exc. VAT)
£0.035/unit
Temporarily out of stock
Murata, LQW, 0402 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 1.5 nH ±0.1 nH 1 A Idc Q:10
  • RS Stock No. 785-9468P
  • Mfr. Part No. LQW15AN1N5B00D
Subtotal 10 units (supplied on a continuous strip)
£0.78(exc. VAT)
£0.078/unit
In Stock
Abracon 16 MHz Crystal ±30 ppm SMT 4-Pin 1.3 mm 5 mm 3.2mm
  • RS Stock No. 263-7767
  • Mfr. Part No. ABM3C-16.000MHZ-D4Y-T
Subtotal (1 reel of 1000 units)
£387.00(exc. VAT)
£0.387/unit
Temporarily out of stock
1 mΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, 3314
  • RS Stock No. 167-3566
  • Mfr. Part No. 3314J-2-105E
Subtotal (1 reel of 500 units)
£372.00(exc. VAT)
£0.744/unit
In Stock
Bourns, GMOV Varistor 4 pF 6 kA
  • RS Stock No. 186-2101P
  • Mfr. Part No. GMOV-14D500K
Subtotal 5 units (supplied in a bag)
£6.09(exc. VAT)
£1.218/unit
In Stock
Vishay 100 Ω Thick Film Resistor 50 W 5 %
  • RS Stock No. 789-1036P
  • Mfr. Part No. RTO050F100R0JTE1
Subtotal 1 unit (supplied in a tube)
£10.95(exc. VAT)
£10.95/unit
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