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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Variable Resistors

163543 Products showing for Passive Components

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In Stock
Wurth Elektronik 10 μF Capacitor 400V dc, Radial, Through Hole - 860241375002 Radial Lead
  • RS Stock No. 163-6325
  • Mfr. Part No. 860241375002
Subtotal (1 box of 500 units)
SGD344.50(exc. GST)
SGD0.689/unit
In Stock
TE Connectivity M 47 Ω Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 404802696045
  • RS Stock No. 162-760
  • Mfr. Part No. 404802696045
Subtotal (1 unit)
SGD40.96(exc. GST)
SGD40.96/unit
In Stock
Vishay 56 kΩ Thin Film Resistor 0.6 W 1 % MBB02070C5602FCT00
  • RS Stock No. 506-5462
  • Mfr. Part No. MBB02070C5602FCT00
Subtotal (1 pack of 50 units)
SGD6.25(exc. GST)
SGD0.125/unit
In Stock
Bourns, SRF0905A, 0905 Unshielded Surface Mount Common Mode Line Filter with a Ferrite Core, 470 μH Ferrite Core ±50 %
  • RS Stock No. 466-315P
  • Mfr. Part No. SRF0905A-471Y
Subtotal 2 units (supplied on a continuous strip)
SGD3.39(exc. GST)
SGD1.695/unit
Temporarily out of stock
Vishay BFC23 Film Capacitor Class X1, ±20%, 68 μF 440V ac, Surface Mount
  • RS Stock No. 878-178
  • Mfr. Part No. BFC233810683
Subtotal (1 unit)
SGD2.74(exc. GST)
SGD2.74/unit
Currently unavailable
Vishay, IHLP-5050FD-01, 5050 Shielded Surface Mount Inductor with a Metal Composite Core, 6.8 μH ±20 % 11.5 A Idc
  • RS Stock No. 748-7457P
  • Mfr. Part No. IHLP5050FDER6R8M01
Subtotal 1 unit (supplied on a continuous strip)
SGD3.11(exc. GST)
SGD3.11/unit
In Stock
RS PRO 98 dB Through Hole Continuous Internal 23.5 mm Piezo Buzzer Component 0.7 V dc Min 15V dc Max
  • RS Stock No. 181-2704
Subtotal (1 unit)
SGD20.98(exc. GST)
SGD20.98/unit
In Stock
Wurth Elektronik, 784383, 2010 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 470 nH Shielded ±30 %
  • RS Stock No. 426-970P
  • Mfr. Part No. 784383430047
Subtotal 5 units (supplied on a continuous strip)
SGD14.73(exc. GST)
SGD2.946/unit
In Stock
Vishay P16 1 kΩ Knob Potentiometer Potentiometer 1-Turns 1-Gang Panel Mount, P16NP102MAB15F1
  • RS Stock No. 733-004
  • Mfr. Part No. P16NP102MAB15F1
Subtotal (1 unit)
SGD24.33(exc. GST)
SGD24.33/unit
In Stock
Wurth Elektronik, WE-HCC Shielded Power Inductor with a Ferrite Core, 2.2 μH ±20 % 16.5 A Idc
  • RS Stock No. 486-411P
  • Mfr. Part No. 7443330220
Subtotal 1 unit (supplied on a continuous strip)
SGD31.31(exc. GST)
SGD31.31/unit
Temporarily out of stock
Wurth Elektronik 4.7 μF Capacitor 100V dc, Radial, Through Hole - 860130873005 Radial Lead
  • RS Stock No. 163-6929
  • Mfr. Part No. 860130873005
Subtotal (1 box of 1500 units)
SGD358.50(exc. GST)
SGD0.239/unit
In Stock
Wurth Elektronik, 784373, 1040 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 3.3 μH Shielded ±20 %
  • RS Stock No. 426-923P
  • Mfr. Part No. 784373680033
Subtotal 5 units (supplied on a continuous strip)
SGD21.15(exc. GST)
SGD4.23/unit
In Stock
Panasonic ERJ 28000 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W - ERJ3EKF2802V
  • RS Stock No. 277-769
  • Mfr. Part No. ERJ3EKF2802V
Subtotal (1 bag of 10 units)
SGD0.30(exc. GST)
SGD0.03/unit
In Stock
TE Connectivity 47 kΩ Metal Oxide Resistor 1 W 5 %
  • RS Stock No. 214-1355P
  • Mfr. Part No. ROX1SJ47K
Subtotal 10 units (supplied as a tape)
SGD1.64(exc. GST)
SGD0.164/unit
Temporarily out of stock
TE Connectivity TLM 0.03 Ω, 0603 Metal Foil Surface Mount Resistor 1 % Surface 0.13 W - TLM1JER030FTD
  • RS Stock No. 477-994
  • Mfr. Part No. TLM1JER030FTD
Subtotal (1 reel of 5000 units)
SGD1,175.00(exc. GST)
SGD0.235/unit
In Stock
TE Connectivity 24 ppr Pulse Incremental Mechanical Rotary Encoder with a 6.8 mm Knurl Shaft (Not Indexed), Through Hole
  • RS Stock No. 663-3230
  • Mfr. Part No. DPL12SV2424A25K3
Subtotal (1 unit)
SGD16.72(exc. GST)
SGD16.72/unit
Currently unavailable
TE Connectivity 47 Ω Wirewound Resistor 7 W 5 % ER5847RJT
  • RS Stock No. 199-6485P
  • Mfr. Part No. ER5847RJT
Subtotal 5 units (supplied as a tape)
SGD11.32(exc. GST)
SGD2.264/unit
Last RS stock
TE Connectivity CPF 2.43 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B2K43E1
  • RS Stock No. 123-1350
  • Mfr. Part No. CPF0805B2K43E1
Subtotal (1 bag of 20 units)
SGD7.70(exc. GST)
SGD0.385/unit
Temporarily out of stock
Panasonic ERJPC6 16200 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W -
  • RS Stock No. 789-887
  • Mfr. Part No. ERJPC6D1622V
Subtotal (1 tape of 10 units)
SGD0.94(exc. GST)
SGD0.094/unit
In Stock
Wurth Elektronik 220 μF Surface Aluminium Polymer Capacitor, 63V dc
  • RS Stock No. 275-9292
  • Mfr. Part No. 865080762015
Subtotal (1 reel of 200 units)
SGD366.80(exc. GST)
SGD1.834/unit
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