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

156644 Products showing for Passive Components

914 of 999+
Panasonic, 0603 (1608M) Thick Film Surface Mount Fixed Resistor ±1% 0.1W
  • RS Stock No. 278-024P
  • Mfr. Part No. ERJ6ENF2003V
Each (Supplied on a Reel)
£0.015
Rubycon 47μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - 50RX3047M8X11.5
  • RS Stock No. 172-6189
  • Mfr. Part No. 50RX3047M8X11.5
Each (In a Box of 2000)
£0.126
TE Connectivity 2344721-3 Dome WiFi Antenna with SMA Connector, WiFi
  • RS Stock No. 188-2456
  • Mfr. Part No. 2344721-3
Each
£76.07
TE Connectivity 3.9kΩ Carbon Film Resistor 0.5W ±5% CFR50J3K9
  • RS Stock No. 125-1146
  • Mfr. Part No. CFR50J3K9
Each (In a Bag of 20)
£0.012
Bourns 10 mH ±10% Ferrite Leaded Inductor, Max SRF:300kHz, Q:40, 50mA Idc, 25Ω Rdc, RLB0913
  • RS Stock No. 135-0100
  • Mfr. Part No. RLB0913-103K
Each (In a Pack of 10)
£0.353
Vishay, IHLP, EK Shielded Wire-wound SMD Inductor with a Metal Composite Core, 10 μH ±20% Shielded 10A Idc
  • RS Stock No. 565-073
  • Mfr. Part No. IHLP5050FDEK100M01
Each (On a Reel of 500)
£0.827
Wurth Elektronik Wireless Charging Coil Receiver 1.5A, 10 μH
  • RS Stock No. 258-5762
  • Mfr. Part No. 760308101309
Each (In a Box of 96)
£5.046
TE Connectivity 10Ω Wire Wound Resistor 0.25W ±0.1% UPW25B10RV
  • RS Stock No. 234-1066
  • Mfr. Part No. UPW25B10RV
Each
£13.36
RS PRO 32Ω 0.1W Miniature Speaker 22.8mm Dia. , 6mm Lead Length, 22.8 (Dia.) x 8.7mm
  • RS Stock No. 780-0719P
Each (Supplied in a Tray)
£1.782
Vishay 10000μF Aluminium Electrolytic Capacitor 6.3V dc, Radial, Through Hole - MAL203853103E3
  • RS Stock No. 684-1860
  • Mfr. Part No. MAL203853103E3
Each (In a Pack of 5)
£2.336
Vishay F340X2 Polypropylene Film Capacitor, 305V ac, ±20%, 1.5μF, Through Hole
  • RS Stock No. 187-8172
  • Mfr. Part No. F340X251530MKM2T0
Each (In a Pack of 2)
£3.915
Vishay 25W 4.7Ω Wirewound Rheostat, RT025AS4R70KB
  • RS Stock No. 168-0128
  • Mfr. Part No. RT025AS4R70KB
Each (In a Pack of 25)
£216.784
RS PRO 4.3kΩ, 0805 (2012M) Thick Film SMD Resistor ±1% 0.125W
  • RS Stock No. 804-6499
Each (On a Reel of 5000)
£0.004
Panasonic 47μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - EEUFC1V470
  • RS Stock No. 107-1091
  • Mfr. Part No. EEUFC1V470
Each (In a Bag of 200)
£0.103
5kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3386
  • RS Stock No. 522-2772
  • Mfr. Part No. 3386P-1-502LF
Each
£1.32
EPCOS B32672L Metallised Polypropylene Film Capacitor, 2 kV dc, 700 V ac, ±5%, 1nF, Through Hole
  • RS Stock No. 172-5576
  • Mfr. Part No. B32672L8102J000
Each (In a Bag of 1000)
£0.119
PIHER SENSORS AND CONTROLS S.S.A Rotary Potentiometer Through Hole, PT15NV02-102A2020-S
  • RS Stock No. 181-233
  • Mfr. Part No. PT15NV02-102A2020-S
Each (In a Bag of 20)
£0.39
Nichicon 470μF Aluminium Electrolytic Capacitor 10V dc, Radial, Through Hole - UVY1A471MED
  • RS Stock No. 739-5223
  • Mfr. Part No. UVY1A471MED
Each (In a Pack of 25)
£0.16
Vishay 56Ω Thick Film Resistor 20W ±5% RTO020F56R00JTE3
  • RS Stock No. 789-0945
  • Mfr. Part No. RTO020F56R00JTE3
Each (In a Pack of 5)
£8.086
TE Connectivity 392Ω Metal Film Resistor 0.25W ±0.1% H8392RBYA
  • RS Stock No. 701-7254
  • Mfr. Part No. H8392RBYA
Each (In a Pack of 5)
£1.02
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