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.

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Antennas
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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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158861 Products showing for Passive Components

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OKW 18.6 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Round Shaft, A1418260
  • RS Stock No. 283-2026
  • Mfr. Part No. A1418260
Subtotal (1 unit)
SGD18.10(exc. GST)
SGD18.10/unit
Temporarily out of stock
Yageo AC 20 kΩ, 0805 Thick Film Resistor ±1 % 0.13 W
  • RS Stock No. 197-8177P
  • Mfr. Part No. AC0805FR-0720KL
Subtotal 500 units (supplied on a reel)
SGD9.00(exc. GST)
SGD0.018/unit
Temporarily out of stock
Yageo 10 μF Multilayer Ceramic Capacitor, 6.3V dc, ±10 %, Surface
  • RS Stock No. 198-8122
  • Mfr. Part No. CC0805KRX5R5BB106
Subtotal (1 reel of 4000 units)
SGD216.00(exc. GST)
SGD0.054/unit
Temporarily out of stock
Murata NFM21P, Signal Filter 16V dc, 0805 0.47 μF, Surface
  • RS Stock No. 166-9598
  • Mfr. Part No. NFM21PC474R1C3D
Subtotal (1 reel of 4000 units)
SGD296.00(exc. GST)
SGD0.074/unit
Temporarily out of stock
RS PRO 220 μF Capacitor 35V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 711-1273P
Subtotal 25 units (supplied in a bag)
SGD7.50(exc. GST)
SGD0.30/unit
In Stock
Wurth Elektronik 10 μF Capacitor 16V dc, Surface Solder
  • RS Stock No. 185-5694
  • Mfr. Part No. 865090368008
Subtotal (1 pack of 25 units)
SGD9.90(exc. GST)
SGD0.396/unit
Last RS stock
Vishay 100 μF MnO2 Tantalum Capacitor 6.3V dc, Surface, TR3 Series
  • RS Stock No. 684-5102P
  • Mfr. Part No. TR3B107K6R3C0400
Subtotal 10 units (supplied on a continuous strip)
SGD11.70(exc. GST)
SGD1.17/unit
In Stock
Wurth Elektronik, WE-PD, 1260 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 μH ±20 % 1.53 A Idc
  • RS Stock No. 333-8500
  • Mfr. Part No. 74477120
Subtotal (1 unit)
SGD2.85(exc. GST)
SGD2.85/unit
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Panasonic ERA 68 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - ERA2AEB683X
  • RS Stock No. 782-581
  • Mfr. Part No. ERA2AEB683X
Subtotal (1 tape of 10 units)
SGD0.67(exc. GST)
SGD0.067/unit
In Stock
Yageo 1 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 198-5304
  • Mfr. Part No. AC0603KRX7R0BB102
Subtotal (1 tape of 250 units)
SGD10.00(exc. GST)
SGD0.04/unit
In Stock
Bourns CRL 330 mΩ, 1206 Thick Film Surface Mount Resistor ±5 % 0.25 W - CRL1206-JW-R330ELF
  • RS Stock No. 794-4241
  • Mfr. Part No. CRL1206-JW-R330ELF
Subtotal (1 pack of 10 units)
SGD1.71(exc. GST)
SGD0.171/unit
In Stock
RS PRO 1.2 mΩ, 1206 Thick Film Resistor 1 % 7 W - RSPHVRC06FTEO1204
  • RS Stock No. 257-2949
Subtotal (1 tape of 10 units)
SGD36.15(exc. GST)
SGD3.615/unit
In Stock
Panasonic ERA 12 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6AEB123V
  • RS Stock No. 566-507
  • Mfr. Part No. ERA6AEB123V
Subtotal (1 pack of 5 units)
SGD0.71(exc. GST)
SGD0.142/unit
In Stock
Bourns 30 50000 Ω Linear Linear Potentiometer 1-Gang Through Hole
  • RS Stock No. 475-663P
  • Mfr. Part No. 3048L-5-103
Subtotal 1 unit (supplied in a tray)
SGD67.90(exc. GST)
SGD67.90/unit
In Stock
ROHM MCR 49.9 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - MCR03EZPFX49R9
  • RS Stock No. 901-3522
  • Mfr. Part No. MCR03EZPFX49R9
Subtotal (1 bag of 100 units)
SGD1.10(exc. GST)
SGD0.011/unit
Last RS stock
TE Connectivity CPF 806 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B806RE1
  • RS Stock No. 146-4084
  • Mfr. Part No. CPF0805B806RE1
Subtotal (1 tape of 20 units)
SGD9.04(exc. GST)
SGD0.452/unit
In Stock
Isabellenhutte BVB 300 Ω, 2725 Zeranin Surface Mount Resistor ±1 % 5 W - BVB-Z-R0003-1.0
  • RS Stock No. 193-0024P
  • Mfr. Part No. BVB-Z-R0003-1.0
Subtotal 5 units (supplied on a continuous strip)
SGD24.05(exc. GST)
SGD4.81/unit
In Stock
Vishay MCT 20 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - MCT06030D2002BP100
  • RS Stock No. 684-5509
  • Mfr. Part No. MCT06030D2002BP100
Subtotal (1 pack of 5 units)
SGD2.70(exc. GST)
SGD0.54/unit
In Stock
5 kΩ, Through Hole Trimmer Potentiometer, PC Pin 0.5 W Bourns, 3386
  • RS Stock No. 691-7689
  • Mfr. Part No. 3386V-1-502LF
Subtotal (1 unit)
SGD2.32(exc. GST)
SGD2.32/unit
Currently unavailable
KEMET PME278 Paper Capacitor X1 440V ac 440 V dc, Through Hole
  • RS Stock No. 173-1760
  • Mfr. Part No. PME278RA4470MR30
Subtotal (1 bag of 800 units)
SGD1,143.20(exc. GST)
SGD1.429/unit
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