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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
Capacitors
Crystals, Oscillators & Resonators
EMI Filters & Protection
Fixed Resistors
Inductors
Passive Components Kits
Rotary Encoders
Sounder, Buzzer & Microphone Components
Surge Protection Components
Variable Resistors

169652 Products showing for Passive Components

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In Stock
Vishay CRCW 75 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 678-9579P
  • Mfr. Part No. CRCW040275K0FKED
Subtotal 50 units (supplied on a continuous strip)
£0.65(exc. VAT)
£0.013/unit
In Stock
Panasonic ERA 14.3 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6AEB1432V
  • RS Stock No. 708-6477
  • Mfr. Part No. ERA6AEB1432V
Subtotal (1 pack of 5 units)
£0.38(exc. VAT)
£0.076/unit
In Stock
Bourns, ZV Varistor 340 pF 1 A, Clamping 135 V, Varistor 82 V, 1206
  • RS Stock No. 211-1175P
  • Mfr. Part No. ZV50K1206121NIR1
Subtotal 25 units (supplied on a continuous strip)
£4.78(exc. VAT)
£0.191/unit
Temporarily out of stock
Bourns, ZV Varistor 710 pF 5 A, Clamping 135 V, Varistor 82 V, 1812
  • RS Stock No. 211-1177P
  • Mfr. Part No. ZV50K1812401NIR1
Subtotal 10 units (supplied on a continuous strip)
£3.21(exc. VAT)
£0.321/unit
In Stock
RS PRO 15 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.1 W
  • RS Stock No. 713-4197
Subtotal (1 reel of 5000 units)
£10.00(exc. VAT)
£0.002/unit
Temporarily out of stock
Bourns, ZV Varistor 570 pF 3 A, Clamping 110 V, Varistor 68 V, 1210
  • RS Stock No. 211-1167P
  • Mfr. Part No. ZV40K1210251NIR1
Subtotal 25 units (supplied on a continuous strip)
£4.30(exc. VAT)
£0.172/unit
In Stock
RS PRO 390 Ω, 1206 Thick Film Surface Mount Resistor ±5 % 0.25 W
  • RS Stock No. 713-1356
Subtotal (1 reel of 5000 units)
£25.00(exc. VAT)
£0.005/unit
Last RS stock
TE Connectivity CPF 13 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B13RE
  • RS Stock No. 666-2364
  • Mfr. Part No. CPF0805B13RE
Subtotal (1 pack of 5 units)
£0.31(exc. VAT)
£0.062/unit
Temporarily out of stock
Bourns, AV Varistor 3.38 nF 5 A, Clamping 44 V, Varistor 27 V, 1812
  • RS Stock No. 209-8088P
  • Mfr. Part No. AV17K1812801NIR1
Subtotal 10 units (supplied on a continuous strip)
£5.38(exc. VAT)
£0.538/unit
In Stock
Bourns, AV Varistor 2.23 nF 2.5 A, Clamping 40 V, Varistor 24 V, 1210
  • RS Stock No. 209-8076P
  • Mfr. Part No. AV14K1210401NIR1
Subtotal 25 units (supplied on a continuous strip)
£8.18(exc. VAT)
£0.327/unit
Temporarily out of stock
Bourns, ZVHT Varistor 1.5 nF 10 A, Clamping 135 V, Varistor 82 V, 2220
  • RS Stock No. 204-8835P
  • Mfr. Part No. ZV50K2220801NIR1HT
Subtotal 10 units (supplied on a continuous strip)
£6.75(exc. VAT)
£0.675/unit
Temporarily out of stock
Bourns, ZVHT Varistor 710 pF 5 A, Clamping 135 V, Varistor 82 V, 1812
  • RS Stock No. 204-8833P
  • Mfr. Part No. ZV50K1812401NIR1HT
Subtotal 10 units (supplied on a continuous strip)
£3.47(exc. VAT)
£0.347/unit
Currently unavailable
Bourns, ZVHT Varistor 3 nF 10 A, Clamping 90 V, Varistor 56 V, 2220
  • RS Stock No. 204-8816P
  • Mfr. Part No. ZV35K2220102NIR1HT
Subtotal 10 units (supplied on a continuous strip)
£4.80(exc. VAT)
£0.48/unit
Temporarily out of stock
Bourns, ZVHT Varistor 5 nF 10 A, Clamping 65 V, Varistor 39 V, 2220
  • RS Stock No. 204-8799P
  • Mfr. Part No. ZV25K2220122NIR1HT
Subtotal 10 units (supplied on a continuous strip)
£6.75(exc. VAT)
£0.675/unit
In Stock
Vishay 3.9 Ω Thick Film Resistor 20 W 5 % RTO020F3R900JTE3
  • RS Stock No. 789-0939
  • Mfr. Part No. RTO020F3R900JTE3
Subtotal (1 pack of 5 units)
£51.50(exc. VAT)
£10.30/unit
Last RS stock
TE Connectivity 15 Ω Wirewound Resistor 1 W 5 % EP1WS15RJ
  • RS Stock No. 762-9358
  • Mfr. Part No. EP1WS15RJ
Subtotal (1 pack of 25 units)
£2.05(exc. VAT)
£0.082/unit
Temporarily out of stock
Bourns, ZVHT Varistor 2.3 nF 5 A, Clamping 65 V, Varistor 39 V, 1812
  • RS Stock No. 204-8797P
  • Mfr. Part No. ZV25K1812801NIR1HT
Subtotal 10 units (supplied on a continuous strip)
£3.47(exc. VAT)
£0.347/unit
Temporarily out of stock
Vishay 470 Ω Wirewound Resistor 1 W 1 % RLP01470R0FS14
  • RS Stock No. 788-8040
  • Mfr. Part No. RLP01470R0FS14
Subtotal (1 pack of 5 units)
£59.21(exc. VAT)
£11.842/unit
Currently unavailable
Bourns, ZVHT Varistor 165 pF 1 A, Clamping 65 V, Varistor 39 V, 0603
  • RS Stock No. 204-8787P
  • Mfr. Part No. ZV25K0603300NIR1HT
Subtotal 50 units (supplied on a continuous strip)
£3.95(exc. VAT)
£0.079/unit
In Stock
Wurth Elektronik, 744384, 5030 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 15 μH Shielded ±20 % 4.5
  • RS Stock No. 427-267
  • Mfr. Part No. 7443845030150
Subtotal (1 tape of 5 units)
£9.88(exc. VAT)
£1.976/unit
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