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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Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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160590 Products showing for Passive Components

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WJ Furse, ESP M1 Surge Suppressor Unit 280V Maximum Voltage Rating 80 kA Maximum Surge Current Mains Surge Protector
  • RS Stock No. 788-6757
  • Mfr. Part No. 7TCA085460R0089 ESP 240M1
Subtotal (1 unit)
SGD907.37(exc. GST)
SGD907.37/unit
In Stock
RS PRO 100 μF Capacitor 25V dc, Through Hole Radial Lead
  • RS Stock No. 170-1060
Subtotal (1 bag of 1000 units)
SGD63.00(exc. GST)
SGD0.063/unit
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RS PRO, 100 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 131-1318
Subtotal (1 unit)
SGD18.31(exc. GST)
SGD18.31/unit
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TDK B32520 Film Capacitor 47 nF 200V ac 400 V dc, Through Hole 2
  • RS Stock No. 194-3525
  • Mfr. Part No. B32520E6473K000
Subtotal (1 pack of 25 units)
SGD8.575(exc. GST)
SGD0.343/unit
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TDK, B84112G 16 A 250V ac/dc 50Hz, 60 Hz, Chassis Mount EMC Filter, Screw 1 Phase
  • RS Stock No. 496-4778
  • Mfr. Part No. B84112G0000B116
Subtotal (1 unit)
SGD34.93(exc. GST)
SGD34.93/unit
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Taiyo Yuden 100 μF Multilayer Ceramic Capacitor, 16V dc, Surface
  • RS Stock No. 240-5660
  • Mfr. Part No. MSASE32MAB5107MPNA01
Subtotal (1 pack of 10 units)
SGD19.20(exc. GST)
SGD1.92/unit
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RS PRO 80 dB Through Hole Continuous External Magnetic Buzzer Component 8.5 mm 1 V ac Min 3V ac Max
  • RS Stock No. 617-3081P
Subtotal 1 unit (supplied in a box)
SGD1.48(exc. GST)
SGD1.48/unit
Temporarily out of stock
Ducati Energia 4.16.10 Film Capacitor, ±5 %, 3 μF 450V ac, Stud Mount
  • RS Stock No. 172-8180
  • Mfr. Part No. 4.16.10.03.64
Subtotal (1 box of 250 units)
SGD1,340.00(exc. GST)
SGD5.36/unit
In Stock
Wurth Elektronik 6.8 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:16 MHz, 56.7 A Idc, 1.2 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7296
  • Mfr. Part No. 7443763540068
Subtotal (1 unit)
SGD30.94(exc. GST)
SGD30.94/unit
In Stock
Omron, J74KN Surge Suppressor Unit 230V ac Maximum Voltage Rating RC Suppressor Unit
  • RS Stock No. 215-5177
  • Mfr. Part No. J74KN-C2-RC230
Subtotal (1 unit)
SGD30.75(exc. GST)
SGD30.75/unit
In Stock
Tamura 5000 μH Amorphous iron Leaded Inductor, 20 A Idc, 460 mΩ Rdc, NAC-20
  • RS Stock No. 154-1201
  • Mfr. Part No. NAC-20-0201
Subtotal (1 unit)
SGD63.84(exc. GST)
SGD63.84/unit
Temporarily out of stock
Laird Ferrite Bead 18 mm (Snap-On) 19.7 mm (2736), 120 Ω impedance at 25 MHz, 220 Ω impedance at 100 MHz, 360 Ω
  • RS Stock No. 888-3377
  • Mfr. Part No. 28A2736-0A2
Subtotal (1 pack of 50 units)
SGD81.85(exc. GST)
SGD1.637/unit
In Stock
RS PRO P25 500 Ω Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 842-7043P
Subtotal 1 unit (supplied in a bag)
SGD11.09(exc. GST)
SGD11.09/unit
Currently unavailable
Tokyo Cosmos Electric Linear Potentiometer 1-Turns 1-Gang, RV30YN20S B302
  • RS Stock No. 252-0382
  • Mfr. Part No. RV30YN20S B302
Subtotal (1 unit)
SGD10.86(exc. GST)
SGD10.86/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 172-6976
  • Mfr. Part No. GRM188C71A475KE11D
Subtotal (1 pack of 50 units)
SGD6.25(exc. GST)
SGD0.125/unit
Currently unavailable
Rubycon 1000 μF Capacitor 16V dc, Through Hole Radial Lead
  • RS Stock No. 766-0107P
  • Mfr. Part No. 16PX1000MEFC10X12.5
Subtotal 10 units (supplied in a bag)
SGD3.79(exc. GST)
SGD0.379/unit
Temporarily out of stock
20 kΩ, Surface Trimmer Potentiometer, J-Hook 0.1 W Top Adjust Nidec Components, ST-2A
  • RS Stock No. 602-5651
  • Mfr. Part No. ST-2A 20k Ohm
Subtotal (1 pack of 5 units)
SGD12.09(exc. GST)
SGD2.418/unit
In Stock
RS PRO 32 mm Knob Diameter Black Potentiometer Knob for 6.4 mm Shaft Circular
  • RS Stock No. 223-742
Subtotal (1 pack of 5 units)
SGD9.46(exc. GST)
SGD1.892/unit
In Stock
TE Connectivity CRG 1 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRG0603F1K0
  • RS Stock No. 213-2266
  • Mfr. Part No. CRG0603F1K0
Subtotal (1 pack of 50 units)
SGD0.50(exc. GST)
SGD0.01/unit
In Stock
Nichicon 4700 μF Capacitor 35V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 739-5320P
  • Mfr. Part No. UVY1V472MHD
Subtotal 2 units (supplied in a bag)
SGD8.26(exc. GST)
SGD4.13/unit
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