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

154991 Products showing for Passive Components

2157 of 999+
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 17.5 x 9.5 x 12.7mm
  • RS Stock No. 332-462
  • Mfr. Part No. 74270091
Each (In a Bag of 2)
£2.00
Sonitron Piezoelectric Miniature Speaker, 93dB, 250 Hz → 20 kHz, 1.16μF, 83.5 x 68 x 5mm
  • RS Stock No. 786-8948
  • Mfr. Part No. SPS-68-T00
Each
£25.47
KYOCERA AVX 330μF Electrolytic Tantalum Capacitor 10V dc, TPS Series
  • RS Stock No. 136-0106
  • Mfr. Part No. TPSE337M010R0100
Each (In a Bag of 10)
£0.896
Nichicon 330μF Aluminium Electrolytic Capacitor 400V dc, Snap-In - LGL2G331MELB25
  • RS Stock No. 714-8575P
  • Mfr. Part No. LGL2G331MELB25
Each (Supplied in a Bag)
£8.13
Vishay P11L 5kΩ Rotary Potentiometer 2-Gang Panel Mount, P11L2V0FLSY00502KA
  • RS Stock No. 743-5699P
  • Mfr. Part No. P11L2V0FLSY00502KA
Each (Supplied in a Bag)
£25.12
ECS Inc International 32MHz Crystal Oscillator SMD 4-Pin 2 x 1.6mm
  • RS Stock No. 301-157
  • Mfr. Part No. ECS-320-8-37CKM
Each
£0.64
Vishay Single Layer Ceramic Capacitor (SLCC) 560pF 2kV dc ±10% S3N Dielectric, F, Through Hole +125°C Max Op. Temp.
  • RS Stock No. 716-7236P
  • Mfr. Part No. F561K39S3NP63K7R
Each (Supplied in a Bag)
£0.129
Vishay 470μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - MAL213659471E3
  • RS Stock No. 447-771
  • Mfr. Part No. MAL213659471E3
Each (In a Pack of 5)
£4.10
Elma 10mm Black Potentiometer Knob for 4mm Shaft Round Shaft, 021-2320
  • RS Stock No. 243-9549
  • Mfr. Part No. 021-2320
Each
£5.58
Wurth Elektronik 12MHz Crystal SMT 4-Pin 3.2 x 2.5 x 0.8mm
  • RS Stock No. 197-605
  • Mfr. Part No. 830069882
Each (On a Tape of 10)
£0.52
Vishay 2 Gang Rotary Conductive Plastic Potentiometer with a 6 mm Dia. Shaft, 50kΩ, ±20%, 0.05W, Linear
  • RS Stock No. 504-2706
  • Mfr. Part No. P9A2R100FISX1503MA
Each
£22.20
Capacitor 22pF 10VDC 1206
  • RS Stock No. 486-201
  • Mfr. Part No. 885012008002
Each (On a Tape of 10)
£0.049
Nidec Components 12V dc 360 Pulse Optical Encoder with a 4 mm
  • RS Stock No. 244-4101
  • Mfr. Part No. RE30E-360-213-1
Each (In a Box of 5)
£60.38
Wurth, WE-TPC, 3510 Shielded Wire-wound SMD Inductor with a Ferrite Core, 0.47 μH ±35% Wire-Wound 1.45A Idc
  • RS Stock No. 163-4753
  • Mfr. Part No. 7440300047
Each (On a Reel of 1500)
£0.866
Wurth, WE-XHMI SMT, 4030 Shielded Wire-wound SMD Inductor with a Polystyrene Core, 2.2 μH 7.8A Idc
  • RS Stock No. 219-792
  • Mfr. Part No. 74439324022
Each (On a Tape of 10)
£1.318
Panasonic ERA 249kΩ, 0603 (1608M) Metal Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 708-9136P
  • Mfr. Part No. ERA3AEB2493V
Each (Supplied on a Reel)
£0.11
Molex 206760-0001 Chip SMT Antenna, 2G (GSM/GPRS), 3G (UTMS), 4G (LTE)
  • RS Stock No. 186-6064
  • Mfr. Part No. 206760-0001
Each (In a Pack of 5)
£2.416
EPCOS B84112B Series 10A 250 V ac 50 → 60Hz Chassis Mount RFI Filter, with Screw Terminals, Single Phase
  • RS Stock No. 213-7053
  • Mfr. Part No. B84112B0000B110
Each
£36.18
RS PRO Whip Antenna with SMA Connector
  • RS Stock No. 227-2059
Each (In a Bag of 100)
£2.909
EPCOS, CT/B Multilayer Varistor 4nF 10A, Clamping 77V, Varistor 42.3 → 51.7V, 2220 (5650M)
  • RS Stock No. 167-0479
  • Mfr. Part No. B72540E0300K062
Each (On a Reel of 1000)
£0.93
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