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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

167626 Products showing for Passive Components

53 of 999+
Last RS stock
Vishay CRCW 390 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.063 W - CRCW0402390KFKED
  • RS Stock No. 678-9229
  • Mfr. Part No. CRCW0402390KFKED
Subtotal (1 pack of 50 units)
£0.65(exc. VAT)
£0.013/unit
In Stock
KEMET R82 Film Capacitor, ±5 %, 100 nF 63 V dc 40V ac, Through Hole
  • RS Stock No. 312-1469
  • Mfr. Part No. R82DC3100DQ50J
Subtotal (1 pack of 10 units)
£1.03(exc. VAT)
£0.103/unit
In Stock
Vishay 5.6 Ω Wirewound Resistor 3 W 5 % AC03000005608JAC00
  • RS Stock No. 683-0927
  • Mfr. Part No. AC03000005608JAC00
Subtotal (1 pack of 10 units)
£4.63(exc. VAT)
£0.463/unit
In Stock
Sifam 15.5 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Circular, SP151 250 BLACK
  • RS Stock No. 407-2453
  • Mfr. Part No. SP151 250 BLACK
Subtotal (1 pack of 10 units)
£37.42(exc. VAT)
£3.742/unit
In Stock
RS PRO MRP440 Film Capacitor, ±10 %, 8 μF 440V ac, Screw
  • RS Stock No. 196-4797
Subtotal (1 unit)
£17.00(exc. VAT)
£17.00/unit
In Stock
UVOX FS-036-094-SA-T Shielding Strip of Beryllium Copper Alloy With Self-Adhesive 406 mm x 9.4mm x 3.6 mm
  • RS Stock No. 772-0271
  • Mfr. Part No. FS-036-094-SA-T
Subtotal (1 unit)
£12.25(exc. VAT)
£12.25/unit
In Stock
Wurth Elektronik, WE-MI, 1206 Unshielded Multilayer Surface Mount Inductor with a Ferrite Core, 100 nH Multilayer ±10 %
  • RS Stock No. 358-6541
  • Mfr. Part No. 7447912
Subtotal (1 pack of 10 units)
£3.56(exc. VAT)
£0.356/unit
Temporarily out of stock
TDK 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 903-8805
  • Mfr. Part No. CGA5L2X7R2A104K160AA
Subtotal (1 pack of 50 units)
£4.30(exc. VAT)
£0.086/unit
In Stock
Arcol 15 kΩ Wirewound Wirewound Resistor 10 W 5 % ACS10S 15K J
  • RS Stock No. 285-7147
  • Mfr. Part No. ACS10S 15K J
Subtotal (1 unit)
£1.24(exc. VAT)
£1.24/unit
In Stock
Nichicon 100 μF Capacitor 25V dc, Through Hole - UBT1E101MPD8 Radial Lead
  • RS Stock No. 762-1673
  • Mfr. Part No. UBT1E101MPD8
Subtotal (1 pack of 5 units)
£2.84(exc. VAT)
£0.568/unit
In Stock
Vishay Single Layer Ceramic Capacitor 940 pF 30kV dc ±20 % N4700 Dielectric, 715C, Screw 85 °C Max Op. Temp.
  • RS Stock No. 210-1580
  • Mfr. Part No. 715C30KTT94
Subtotal (1 unit)
£57.23(exc. VAT)
£57.23/unit
Last RS stock
TE Connectivity 330 mΩ Metal Film Resistor 0.5 W 5 %
  • RS Stock No. 135-516P
  • Mfr. Part No. LR1LJR33
Subtotal 10 units (supplied as a tape)
£0.81(exc. VAT)
£0.081/unit
In Stock
Taoglas GW.51.5153 Whip WiFi Antenna with SMA Connector, Bluetooth (BLE), WiFi, ZigBee
  • RS Stock No. 288-4485
  • Mfr. Part No. GW.51.5153
Subtotal (1 unit)
£7.73(exc. VAT)
£7.73/unit
In Stock
Vishay CRCW 10 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.125 W - CRCW080510K0FKEA
  • RS Stock No. 679-0816
  • Mfr. Part No. CRCW080510K0FKEA
Subtotal (1 pack of 50 units)
£0.95(exc. VAT)
£0.019/unit
Last RS stock
Vishay 3.3 Ω Metal Film Metal Film Resistor 1 W 5 %
  • RS Stock No. 251-3728P
  • Mfr. Part No. PR01000103308JR500
Subtotal 5 units (supplied on a continuous strip)
£0.90(exc. VAT)
£0.18/unit
Currently unavailable
Wurth Elektronik 680 μF Surface Polymer Capacitor, 6.3V dc
  • RS Stock No. 838-7702
  • Mfr. Part No. 875075155008
Subtotal (1 pack of 5 units)
£4.59(exc. VAT)
£0.918/unit
In Stock
RS PRO 16.8 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft D Shaped
  • RS Stock No. 777-7362
Subtotal (1 pack of 5 units)
£3.69(exc. VAT)
£0.738/unit
In Stock
RS PRO 102 dB Surface Siren Internal 22.8 mm Electronic Sounder 47 mm 6 V dc Min 14V dc Max
  • RS Stock No. 767-5351
Subtotal (1 unit)
£8.39(exc. VAT)
£8.39/unit
In Stock
KEMET C27 Film Capacitor, ±5 %, 40 μF 470V ac, Chassis Mount
  • RS Stock No. 377-9153
  • Mfr. Part No. C274ACF5400WA0J
Subtotal (1 unit)
£15.87(exc. VAT)
£15.87/unit
In Stock
RF Solutions FLEXI-SMA90-868 Whip Antenna with SMA Connector, ISM Band
  • RS Stock No. 542-563
  • Mfr. Part No. FLEXI-SMA90-868
Subtotal (1 unit)
£7.35(exc. VAT)
£7.35/unit
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