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
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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163786 Products showing for Passive Components

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Wurth Elektronik 33 μF Capacitor 63V dc, Through Hole Radial Lead
  • RS Stock No. 840-4980
  • Mfr. Part No. 860020773012
Subtotal (1 pack of 25 units)
SGD5.70(exc. GST)
SGD0.228/unit
In Stock
KEMET 3.3 μH Nickel Zinc Ferrite Core Coil Inductor, 4.7 A Idc, 20 mΩ Rdc, SBC3
  • RS Stock No. 265-2383
  • Mfr. Part No. SBC3-3R3-472
Subtotal (1 unit)
SGD1.34(exc. GST)
SGD1.34/unit
In Stock
Arcol Ohmite HS25 R05 J, 50 mΩ 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 160-641
  • Mfr. Part No. HS25 R05 J
Subtotal (1 unit)
SGD10.76(exc. GST)
SGD10.76/unit
In Stock
Sifam 29.5 mm Knob Diameter Black Potentiometer Knob Cap for 6 mm Shaft Axial, C291-BLK
  • RS Stock No. 226-016
  • Mfr. Part No. C291-BLK
Subtotal (1 pack of 10 units)
SGD15.32(exc. GST)
SGD1.532/unit
Temporarily out of stock
Visaton 8 Ω 1 W Miniature Speaker 36 mm Dia. 6 mm
  • RS Stock No. 121-8645
  • Mfr. Part No. 2912/48
Subtotal (1 pack of 48 units)
SGD373.008(exc. GST)
SGD7.771/unit
Temporarily out of stock
PCN FHN60 0.1OHMF, 100 mΩ 50 W Wirewound Chassis Mount Resistor ±1 %
  • RS Stock No. 602-7023
  • Mfr. Part No. FHN60 0.1OHMF
Subtotal (1 unit)
SGD122.22(exc. GST)
SGD122.22/unit
Temporarily out of stock
Yageo 4.7 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 %
  • RS Stock No. 199-7625P
  • Mfr. Part No. MFR-25FTE52-4K7
Subtotal 100 units (supplied in a box)
SGD3.70(exc. GST)
SGD0.037/unit
Last RS stock
Vishay 47 nF Multilayer Ceramic Capacitor, 50V dc, 10 %, Through Hole Axial
  • RS Stock No. 210-7785
  • Mfr. Part No. A473K15X7RF5UAAP
Subtotal (1 pack of 10 units)
SGD4.02(exc. GST)
SGD0.402/unit
Temporarily out of stock
TDK, B84243A 25 A 530V ac 50Hz, 60 Hz, Chassis Mount EMC Filter, Terminal Block 3 Phase
  • RS Stock No. 887-6492
  • Mfr. Part No. B84243A8025W000
Subtotal (1 unit)
SGD290.88(exc. GST)
SGD290.88/unit
Temporarily out of stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 35V dc, Surface Solder 2000
  • RS Stock No. 568-919P
  • Mfr. Part No. EEEFPV100UAR
Subtotal 5 units (supplied as a tape)
SGD3.32(exc. GST)
SGD0.664/unit
In Stock
Wurth Elektronik 220 μF Capacitor 25V dc, Through Hole Radial Lead
  • RS Stock No. 839-6968P
  • Mfr. Part No. 860010473011
Subtotal 25 units (supplied as a tape)
SGD7.525(exc. GST)
SGD0.301/unit
In Stock
Panasonic 1500 μF Capacitor 10V dc, Radial - EEUFR1A152 Radial Lead
  • RS Stock No. 708-3563
  • Mfr. Part No. EEUFR1A152
Subtotal (1 pack of 10 units)
SGD7.30(exc. GST)
SGD0.73/unit
In Stock
RS PRO Spindle Lock 13.51 mm, For Use With 3/8 in Bushes with 32 TPI White-Thread and 1/4 in Shaft
  • RS Stock No. 482-2450
Subtotal (1 pack of 5 units)
SGD39.74(exc. GST)
SGD7.948/unit
In Stock
KEMET Clip for use with 76 mm Dia Capacitor
  • RS Stock No. 166-8736
  • Mfr. Part No. V11
Subtotal (1 unit)
SGD12.11(exc. GST)
SGD12.11/unit
Temporarily out of stock
Wurth Elektronik Shielding Strip of Nickel, Copper Layered Metallised Fibre, Polyurethane Foam With Tape 1 m x 2mm x 1.5
  • RS Stock No. 773-7232
  • Mfr. Part No. 30302015
Subtotal (1 unit)
SGD14.80(exc. GST)
SGD14.80/unit
In Stock
Ducati Energia 4.16.17 Film Capacitor, ±5 %, 2.5 μF 450V ac, Plug-in
  • RS Stock No. 163-1893
  • Mfr. Part No. 4.16.17.03.64
Subtotal (1 bag of 1 unit)
SGD6.41(exc. GST)
SGD6.41/bag
In Stock
Yageo 12 kΩ Metal Film Metal Film Fixed Resistor 0.6 W 1 % MF0207FTE52-12K
  • RS Stock No. 199-7544
  • Mfr. Part No. MF0207FTE52-12K
Subtotal (1 tape of 100 units)
SGD4.40(exc. GST)
SGD0.044/unit
In Stock
Wurth Elektronik Shielding Strip of Polyurethane Foam, Copper Layered Metallised Fibre, Nickel With Tape 1 m x 10mm x 8
  • RS Stock No. 773-7201
  • Mfr. Part No. 3021008
Subtotal (1 unit)
SGD18.33(exc. GST)
SGD18.33/unit
In Stock
KEMET PME271 Paper Capacitor X2 250V ac 250 V dc, Through Hole
  • RS Stock No. 210-601
  • Mfr. Part No. PME271Y533MR30
Subtotal (1 pack of 5 units)
SGD16.25(exc. GST)
SGD3.25/unit
In Stock
Panasonic 4.7 μF Capacitor 50V dc, Radial, Through Hole - ECEA1HKS4R7 Radial Lead
  • RS Stock No. 117-029
  • Mfr. Part No. ECEA1HKS4R7
Subtotal (1 pack of 5 units)
SGD1.62(exc. GST)
SGD0.324/unit
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