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 include 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 passive component that can gather and hold a charge in a way that is similar to how a battery functions. This type of passive component is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to a power source. One plate accumulates a positive charge and the other plate accumulates a 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

Another type of passive component is the resistor. 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, it's 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 component 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; some examples would include windings from a transformer and inductors. It is useful because of its low electrical conductivity and high magnetic permeability.

Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic equipment and circuitry with added protection against the harmful effects of electricity surges, improving their longevity.

RS is a supplier of passive components with a wide variety of quality products from leading manufacturers across the world.

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

146393 Products showing for Passive Components

248 of 999+
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Wurth Elektronik 180μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - 860020574011
  • RS Stock No. 163-7557
  • Mfr. Part No. 860020574011
Each (In a Box of 800)
THB5.478(exc. VAT)
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TE Connectivity NEOHM SMA-Q 97.6 kΩ, 0204 Thin Film Surface Mount Fixed Resistor 1 % Surface 0.4 W - SMA-Q0204FTDX97K6
  • RS Stock No. 590-061
  • Mfr. Part No. SMA-Q0204FTDX97K6
Each (On a Reel of 3000)
THB0.977(exc. VAT)
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TE Connectivity NEOHM SMA-Q 1 kΩ, 0102 Thin Film Surface Mount Fixed Resistor 0.1 % Surface 0.3 W - SMA-Q0102BTCL1K0
  • RS Stock No. 590-500
  • Mfr. Part No. SMA-Q0102BTCL1K0
Each (On a Reel of 3000)
THB23.835(exc. VAT)
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Eaton 3 F Supercapacitor -10 to 30 % Tolerance, Supercap HV 2.7 V, Through Hole
  • RS Stock No. 169-9457
  • Mfr. Part No. HV0820-2R7305-R
Each (In a Bag of 100)
THB41.307(exc. VAT)
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TE Connectivity CRG 470 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRG1206F470K
  • RS Stock No. 134-7667
  • Mfr. Part No. CRG1206F470K
Each (On a Reel of 5000)
THB0.335(exc. VAT)
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RS PRO Panel Multi-Band Antenna with RJ45 Connector, 5G, LTE, WiFi6 E
  • RS Stock No. 434-528
Each
THB8,645.12(exc. VAT)
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Yageo RL 20 mΩ, 2512 Thick Film Surface Mount Resistor ±1 % 1 W
  • RS Stock No. 199-6121P
  • Mfr. Part No. RL2512FK-070R02L
Each (Supplied on a Reel)
THB8.832(exc. VAT)
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Vishay 30.6mm Black Potentiometer Knob for 6.35mm Shaft, 23A21B10
  • RS Stock No. 199-6299
  • Mfr. Part No. 23A21B10
Each
THB4,178.86(exc. VAT)
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Vishay, IHLE3232, 3232 Yes Surface Mount Inductor 470 nH Shielded ±20 % 27 A Idc
  • RS Stock No. 228-8692
  • Mfr. Part No. IHLE3232DDERR47M5A
Each (On a Reel of 500)
THB34.058(exc. VAT)
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Epson, 4MHz SPXO Crystal Oscillator CMOS, 4-Pin Surface Mount X1G005961001112
  • RS Stock No. 298-691
  • Mfr. Part No. X1G005961001112
Each (On a Tape of 10)
THB62.544(exc. VAT)
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Phoenix Contact, VAL Surge Protection Plug 440V ac Maximum Voltage Rating 40 kA Maximum Surge Current Surge Protection
  • RS Stock No. 519-552
  • Mfr. Part No. 1466691
Each: (In a Pack of 10)
THB2,054.758(exc. VAT)
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Bourns, SRP1250, 1250 Yes Surface Mount Inductor with a Iron Core, 9 μH Wirewound ±20 % 10 A Idc
  • RS Stock No. 786-9506
  • Mfr. Part No. SRP1250-9R0M
Each
THB31.03(exc. VAT)
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Arcol Ohmite PCS 0.01 Ω, 1206 Metal Film Surface Mount Fixed Resistor 0.5 % 1 W - PCS1206DR0100ET
  • RS Stock No. 263-4332
  • Mfr. Part No. PCS1206DR0100ET
Each (On a Tape of 10)
THB19.891(exc. VAT)
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KEMET C4AF Film Capacitor, 250V ac, 10%, 40μF, Through Hole
  • RS Stock No. 258-4199
  • Mfr. Part No. C4AF1BW5400F3NK
Each
THB466.89(exc. VAT)
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Panasonic 1000μF Aluminium Electrolytic Capacitor 6.3V dc, Surface Mount - EEEFN0J102L
  • RS Stock No. 262-4854
  • Mfr. Part No. EEEFN0J102L
Each (On a Reel of 500)
THB11.623(exc. VAT)
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Wurth Elektronik 56 μF Through Hole Aluminium Polymer Capacitor, 50 V
  • RS Stock No. 275-9392
  • Mfr. Part No. 870585775004
Each (On a Reel of 600)
THB68.813(exc. VAT)
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Wurth Elektronik Ferrite Bead 10 mm (Through Hole) 6 mm (Radial) (6-Hole), 920 Ω impedance at 25 MHz, 961 Ω impedance at
  • RS Stock No. 124-1521
  • Mfr. Part No. 74275043
Each: (In a Pack of 20)
THB10.393(exc. VAT)
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Wurth Elektronik Ferrite Bead 1.2 mm (Surface) (0805) (Ferrite Bead), 320 Ω impedance at 100 MHz
  • RS Stock No. 163-7379
  • Mfr. Part No. 74279220321
Each (On a Reel of 4000)
THB7.632(exc. VAT)
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Arcol Ohmite 50 mΩ Wirewound Fixed Resistor 3 W 1 % 13FR050E
  • RS Stock No. 124-9287
  • Mfr. Part No. 13FR050E
Each (In a Bag of 5)
THB123.868(exc. VAT)
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TE Connectivity NEOHM SMA-Q 1 kΩ, 0102 Thin Film Surface Mount Fixed Resistor 1 % Surface 0.3 W - SMA-Q0102FTDL1K0
  • RS Stock No. 590-246
  • Mfr. Part No. SMA-Q0102FTDL1K0
Each (On a Reel of 3000)
THB2.706(exc. VAT)
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