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

155496 Products showing for Passive Components

833 of 999+
Wurth 2 x 1 mH -30 → +50% Nano Crystalline Common Mode Choke, Max SRF:1 kHz → 300 MHz, 20A Idc, 2 x 2.4mΩ
  • RS Stock No. 816-4818P
  • Mfr. Part No. 7448042001
Each (Supplied in a Box)
£10.29
EPCOS B32021 Polypropylene Film Capacitor, 300V ac, ±10%, 6.8nF, Through Hole
  • RS Stock No. 194-3391
  • Mfr. Part No. B32021A3682K000
Each (In a Pack of 20)
£0.266
Abracon 32.768kHz Crystal Unit ±30ppm SMD 4-Pin 8 x 3.8 x 2.5mm
  • RS Stock No. 171-2835P
  • Mfr. Part No. ABS25-32.768KHZ-T
Each (Supplied on a Reel)
£0.242
Bourns, 1977 Coaxial Surge Protection 130 V dc Maximum Voltage Rating 20kA Maximum Surge Current Coaxial Surge Protector
  • RS Stock No. 785-8196
  • Mfr. Part No. 1977-09-A01
Each
£114.31
Wurth Elektronik 1.1 mH 18 A Common Mode Choke 7mΩ
  • RS Stock No. 185-7437
  • Mfr. Part No. 744833011180
Each
£15.19
Schurter, FMBB NEO 16A 250 V ac 50 → 60Hz, Screw Mount RFI Filter, Tab, Single Phase
  • RS Stock No. 782-4103
  • Mfr. Part No. 5500.2605.01
Each
£33.78
Bourns 3549 100kΩ Rotary Potentiometer 10-Turns 1-Gang Panel Mount, 3549S-1AA-104A
  • RS Stock No. 692-8519
  • Mfr. Part No. 3549S-1AA-104A
Each
£24.19
KEMET 3300μF Aluminium Electrolytic Capacitor 350V dc, Snap-In - ALC70C332FP350
  • RS Stock No. 181-3420
  • Mfr. Part No. ALC70C332FP350
Each
£15.15
TE Connectivity CRGH 470Ω, 1206 (3216M) Thick Film SMD Resistor ±5% 0.5W
  • RS Stock No. 807-1246
  • Mfr. Part No. CRGH1206J470R
Each (In a Bag of 100)
£0.029
CHEMI-CON 470μF Aluminium Electrolytic Capacitor 16V dc, Through Hole - EKMG160ELL471MHB5D
  • RS Stock No. 374-427
  • Mfr. Part No. EKMG160ELL471MHB5D
Each (In a Pack of 5)
£0.528
Vishay PE30 1kΩ Rotary Potentiometer 1-Gang Panel Mount, PE30L0FR102KAB
  • RS Stock No. 790-4287
  • Mfr. Part No. PE30L0FR102KAB
Each
£38.36
TE Connectivity ANT-2.4-CW-RAH-RPS Rod WiFi Antenna with SMA Connector, ISM Band
  • RS Stock No. 272-8897
  • Mfr. Part No. ANT-2.4-CW-RAH-RPS
Each
£7.20
TE Connectivity, 22Ω 1.2kW Wirewound High Power Resistor TE1200B22RJ ±5%
  • RS Stock No. 224-0107
  • Mfr. Part No. TE1200B22RJ
Each
£80.33
EPCOS B32021 Metallised Polypropylene Film Capacitor, 1.5 kV dc, 300 V ac, ±20%, 82nF, Through Hole
  • RS Stock No. 882-9102
  • Mfr. Part No. B32022A3823M000
Each (In a Pack of 5)
£0.862
Panasonic 27μF Through Hole Aluminium Polymer Capacitor, 100V
  • RS Stock No. 433-926
  • Mfr. Part No. 100SXE27MX
Each (In a Pack of 5)
£1.994
CHEMI-CON 2700μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - ELXZ500ELL272MM40S
  • RS Stock No. 170-0432
  • Mfr. Part No. ELXZ500ELL272MM40S
Each (In a Box of 250)
£2.256
TE Connectivity SM 18kΩ Metal Film SMD Resistor ±5% 3W
  • RS Stock No. 647-6548
  • Mfr. Part No. SMF318KJT
Each (In a Pack of 5)
£0.51
Vishay, Tube Thick Film Resistor 5% 200W
  • RS Stock No. 361-547
  • Mfr. Part No. ISOA200R110R0JT
Each (In a Box of 30)
£13.586
ROHM 10mΩ, 7142(2817) Metal Plate Resistor ±1% 10W
  • RS Stock No. 237-4340
  • Mfr. Part No. GMR320HJBFA10L0
Each (On a Reel of 2000)
£0.968
TE Connectivity CRG 27kΩ, 1206 (3216M) Thick Film SMD Resistor ±1% 0.25W
  • RS Stock No. 134-5527
  • Mfr. Part No. CRG1206F27K
Each (On a Reel of 5000)
£0.004
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