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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163920 Products showing for Passive Components

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Wurth Elektronik, WE-LHMI Shielded Wirewound Surface Mount Inductor 1 μH ±20 %
  • RS Stock No. 486-562
  • Mfr. Part No. 74437346010
Subtotal (1 unit)
SGD30.34(exc. GST)
SGD30.34/unit
In Stock
KEMET 8.2 mH 800 mA Common Mode Choke 0.64 Ω 250V
  • RS Stock No. 186-1176
  • Mfr. Part No. SSHB10H-08082
Subtotal (1 pack of 5 units)
SGD14.11(exc. GST)
SGD2.822/unit
In Stock
Panasonic ERJ 887 kΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.25 W - ERJ8ENF8873V
  • RS Stock No. 282-493P
  • Mfr. Part No. ERJ8ENF8873V
Subtotal 10 units (supplied on a continuous strip)
SGD0.74(exc. GST)
SGD0.074/unit
In Stock
Panasonic ERJ 21.5 kΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W - ERJ2RKF2152X
  • RS Stock No. 287-992
  • Mfr. Part No. ERJ2RKF2152X
Subtotal (1 bag of 10 units)
SGD0.14(exc. GST)
SGD0.014/unit
In Stock
Wurth Elektronik Ferrite Bead 9.5 mm 9.5 mm (EMI Suppression Axial Ferrite Bead), 53 Ω impedance at 25 MHz, 93 Ω
  • RS Stock No. 332-462
  • Mfr. Part No. 74270091
Subtotal (1 bag of 2 units)
SGD7.48(exc. GST)
SGD3.74/unit
Currently unavailable
Epson 26 MHz Crystal Unit ±9 ppm SMT 4-Pin 500 μm 2 mm 1.6mm
  • RS Stock No. 205-3412
  • Mfr. Part No. Q22FA1280055412
Subtotal (1 pack of 5 units)
SGD4.91(exc. GST)
SGD0.982/unit
In Stock
Arcol Ohmite HS15 47R J, 47 Ω 15 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 162-0997
  • Mfr. Part No. HS15 47R J
Subtotal (1 bag of 100 units)
SGD521.00(exc. GST)
SGD5.21/unit
Last RS stock
TE Connectivity, AHV 40 A 760V 50Hz, 60 Hz, Chassis Mount EMI Filter, Terminal Block 3 Phase
  • RS Stock No. 264-5653
  • Mfr. Part No. 2405081-7
Subtotal (1 unit)
SGD557.43(exc. GST)
SGD557.43/unit
In Stock
Wurth Elektronik, WE-TPC, 3816 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 22 μH ±30 % 510 mA Idc
  • RS Stock No. 617-0903
  • Mfr. Part No. 744031220
Subtotal (1 unit)
SGD2.07(exc. GST)
SGD2.07/unit
In Stock
Wurth Elektronik, WE-XHMI Shielded Power Inductor 6.8 μH
  • RS Stock No. 484-738
  • Mfr. Part No. 74439358068
Subtotal (1 unit)
SGD61.18(exc. GST)
SGD61.18/unit
In Stock
Murata 10 nF Multilayer Ceramic Capacitor, 100V dc, 10 %, Surface
  • RS Stock No. 247-7739
  • Mfr. Part No. GCJ188R72A103KA01D
Subtotal (1 tape of 50 units)
SGD3.75(exc. GST)
SGD0.075/unit
In Stock
Wurth Elektronik, WE-XHMA, 1090 Shielded Surface Mount Inductor with a Composite Core Core, 2.2 μH ±20 % 16 A Idc
  • RS Stock No. 248-8282
  • Mfr. Part No. 78439369022
Subtotal (1 unit)
SGD7.31(exc. GST)
SGD7.31/unit
In Stock
KEMET 47 μF MnO2 Tantalum Capacitor 16V dc, Surface, T494 Series
  • RS Stock No. 538-2846P
  • Mfr. Part No. T494C476K016AT
Subtotal 10 units (supplied on a continuous strip)
SGD20.00(exc. GST)
SGD2.00/unit
In Stock
Wurth Elektronik, WE-LQS Shielded Power Inductor 1 μH
  • RS Stock No. 485-652
  • Mfr. Part No. 74404064010
Subtotal (1 unit)
SGD9.61(exc. GST)
SGD9.61/unit
In Stock
Wurth Elektronik WRIS-RSKS 10 kΩ, 0402 Thick Film Surface Mount Resistor ±5 % Surface 0.1 W - 560112110006
  • RS Stock No. 427-365
  • Mfr. Part No. 560112110006
Subtotal (1 tape of 10 units)
SGD0.77(exc. GST)
SGD0.077/unit
Temporarily out of stock
Murata 4.7 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 247-7847
  • Mfr. Part No. GCM155R72A472KA37D
Subtotal (1 reel of 10000 units)
SGD80.00(exc. GST)
SGD0.008/unit
In Stock
Vishay 1.8 kΩ Metal Film Resistor 3 W 5 % PR03000201801JAC00
  • RS Stock No. 441-2334
  • Mfr. Part No. PR03000201801JAC00
Subtotal (1 pack of 10 units)
SGD4.26(exc. GST)
SGD0.426/unit
In Stock
Panasonic ERJ8CW 12 mΩ, 1206 Thick Film Surface Mount Fixed Resistor ±1 % 1 W - ERJ8CWFR012V
  • RS Stock No. 277-813
  • Mfr. Part No. ERJ8CWFR012V
Subtotal (1 bag of 10 units)
SGD3.48(exc. GST)
SGD0.348/unit
Temporarily out of stock
TDK Openable, Diameter 7 mm Ferrite Sleeve, Apertures: 1 15 mm 22 mm 18 mm, For Suppression Components
  • RS Stock No. 774-0635P
  • Mfr. Part No. ZCAT1518-0730
Subtotal 1 unit (supplied in a box)
SGD2.19(exc. GST)
SGD2.19/unit
In Stock
Vishay P16 4.7 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, P16NP472MAB15CV1D
  • RS Stock No. 298-403
  • Mfr. Part No. P16NP472MAB15CV1D
Subtotal (1 unit)
SGD34.38(exc. GST)
SGD34.38/unit
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