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

154833 Products showing for Passive Components

331 of 999+
Schaffner, FN405 1A 250 V ac 400Hz, PCB Mount EMI Filter, Pin, Single Phase
  • RS Stock No. 123-0230
  • Mfr. Part No. FN405-1-02
Each
£10.71
Nichicon 82μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - UPW1V820MED
  • RS Stock No. 715-2741
  • Mfr. Part No. UPW1V820MED
Each (In a Pack of 10)
£0.244
RS PRO Omni-Directional, Through Hole 4mm Microphone Condenser -44dB
  • RS Stock No. 780-0725
Each (In a Bag of 5)
£1.084
L-Com HG2405RD-RTP Baton/Stick WiFi Antenna with TNC Connector
  • RS Stock No. 297-209
  • Mfr. Part No. HG2405RD-RTP
Each
£23.63
Omron A2W-AT2.5-WC1 Antenna
  • RS Stock No. 183-0075
  • Mfr. Part No. A2W-AT2.5-WC1
Each
£24.11
TE Connectivity 47Ω Wire Wound Resistor 3W ±5% ER7447RJT
  • RS Stock No. 151-754
  • Mfr. Part No. ER7447RJT
Each (In a Pack of 5)
£0.914
Wurth Elektronik 3.3μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - 860160672004
  • RS Stock No. 839-9364
  • Mfr. Part No. 860160672004
Each (In a Pack of 25)
£0.118
Murata Ferrite Bead (Chip Ferrite Bead), 1.6 x 0.8 x 0.8mm (0603), 107Ω impedance at 25 MHz, 220Ω impedance at 100 MHz,
  • RS Stock No. 223-4911P
  • Mfr. Part No. BLM18KN221EH1D
Each (Supplied on a Reel)
£0.037
Nichicon 680μF Aluminium Electrolytic Capacitor 200V dc, Snap-In - LGU2D681MELZ
  • RS Stock No. 844-2831
  • Mfr. Part No. LGU2D681MELZ
Each
£3.21
EPCOS B32021 Polypropylene Film Capacitor, 300V ac, ±20%, 1.5nF, Through Hole
  • RS Stock No. 668-9898P
  • Mfr. Part No. B32021A3152M289
Each (Supplied in a Box)
£0.303
Vishay Single Layer Ceramic Capacitor (SLCC) 4.7nF 10kV dc -20 → +80% Z5U Dielectric, 615R, Through Hole +105°C
  • RS Stock No. 131-1213P
  • Mfr. Part No. 615R100GAD47
Each (Supplied in a Bag)
£7.10
Panasonic ERJP08 15Ω, 1206 (3216M) Thick Film SMD Resistor ±1% 0.66W
  • RS Stock No. 721-9670
  • Mfr. Part No. ERJP08F15R0V
Each (In a Pack of 5)
£0.112
Wurth Elektronik 6.8pF Multilayer Ceramic Capacitor MLCC, 25V dc V, SMD
  • RS Stock No. 242-1039
  • Mfr. Part No. 885012006031
Each (In a Pack of 100)
£0.027
Wurth Elektronik 15 Pulse Incremental Mechanical Rotary Encoder with a 6 mm, Through Hole
  • RS Stock No. 185-4391
  • Mfr. Part No. 482016514001
Each (In a Pack of 2)
£3.705
TE Connectivity 220kΩ Carbon Film Resistor 1W ±5% CFR100J220K
  • RS Stock No. 135-291P
  • Mfr. Part No. CFR100J220K
Each (Supplied as a Tape)
£0.121
Bourns, SRF0905, 0905 Shielded SMD Common Mode Line Filter with a Ferrite Core, 25 μH 30% 1A Idc
  • RS Stock No. 223-1760
  • Mfr. Part No. SRF0905-250Y
Each (On a Tape of 5)
£0.95
Vishay CRCW 100Ω, 2010 (5025M) Thick Film SMD Resistor ±1% 0.75W
  • RS Stock No. 679-2382
  • Mfr. Part No. CRCW2010100RFKEF
Each (In a Pack of 25)
£0.074
Dehn, DG Modular Surge Protector 275 V Maximum Voltage Rating 40kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 847-0971
  • Mfr. Part No. DG M TNC 275 FM
Each
£340.80
RS PRO 2kΩ Carbon Film Resistor 0.5W ±5%
  • RS Stock No. 707-8252P
Each (Supplied as a Tape)
£0.145
KEMET R75 Metallised Polypropylene Film Capacitor, 220 V ac, 400 V dc, ±5%, 4.7μF, Through Hole
  • RS Stock No. 171-8982
  • Mfr. Part No. R75MR44704030J
Each (In a Bag of 112)
£1.948
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