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
Passive Components Kits
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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163787 Products showing for Passive Components

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Vishay 12 mΩ Metal Glaze Resistor 0.5 W 5 % VR37000001205FR500
  • RS Stock No. 164-8417
  • Mfr. Part No. VR37000001205FR500
Subtotal (50 units, in packs of 50)
SGD23.10(exc. GST)
SGD0.462/unit
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Murata 100 μF Multilayer Ceramic Capacitor, 6.3V dc, ±20 %, Surface
  • RS Stock No. 846-7363P
  • Mfr. Part No. GRM32EE70J107ME15L
Subtotal (5 units, supplied on a continuous strip)
SGD3.27(exc. GST)
SGD0.654/unit
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Kamaya RMC 47 Ω, 2010 Thick Film Surface Mount Resistor ±1 % 0.75 W - RMC1/2K470FTE
  • RS Stock No. 558-625
  • Mfr. Part No. RMC1/2K470FTE
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SGD6.90(exc. GST)
SGD0.138/unit
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RS PRO, 50 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 131-1314
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SGD17.70(exc. GST)
SGD17.70/unit
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RS PRO 8 Ω 1 W Miniature Speaker 3 mm Dia. 3 mm, 9mm
  • RS Stock No. 117-6049
Subtotal (1 unit)
SGD4.42(exc. GST)
SGD4.42/unit
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Wurth Elektronik, WE-PD, 1210 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 680 μH ±20 % 1.1 A Idc
  • RS Stock No. 744-4864
  • Mfr. Part No. 7447709681
Subtotal (1 unit)
SGD3.50(exc. GST)
SGD3.50/unit
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Samsung Electro-Mechanics 4.7 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 257-5894
  • Mfr. Part No. CL31B475KBHVPNE
Subtotal (10 units, on tapes of 10)
SGD3.54(exc. GST)
SGD0.354/unit
Temporarily out of stock
KEMET 47000 μF Capacitor 63V dc, Screw
  • RS Stock No. 189-800P
  • Mfr. Part No. PEH200MO5470MU2
Subtotal (1 unit, supplied in a box)
SGD123.31(exc. GST)
SGD123.31/unit
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Fair-Rite 350 piece Ferrite Kit
  • RS Stock No. 466-8903
  • Mfr. Part No. 0199000019
Subtotal (1 unit)
SGD170.92(exc. GST)
SGD170.92/unit
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Wurth Elektronik 1 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 242-1187
  • Mfr. Part No. 885012208046
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SGD4.60(exc. GST)
SGD0.092/unit
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Bourns 22.8 mm Knob Diameter Black, Chrome Potentiometer Knob for 6 mm Shaft Circular, H-516-6M
  • RS Stock No. 770-3236
  • Mfr. Part No. H-516-6M
Subtotal (1 unit)
SGD15.95(exc. GST)
SGD15.95/unit
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TE Connectivity 22 kΩ Wirewound Resistor 7 W 5 % SBCHE622KJ
  • RS Stock No. 206-1243
  • Mfr. Part No. SBCHE622KJ
Subtotal (5 units, in packs of 5)
SGD7.30(exc. GST)
SGD1.46/unit
Last RS stock
Vishay NTC Thermistor, NTC Type 680 kΩ 0.8 mm 2 mm 1.5 mm
  • RS Stock No. 244-1703
  • Mfr. Part No. NTCS0805E3502FLT
Subtotal (10 units, on tapes of 10)
SGD8.55(exc. GST)
SGD0.855/unit
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RS PRO 85 dB Panel Mount Continuous External 4.5 mm Piezo Buzzer Component 1 V dc Min 30V dc Max
  • RS Stock No. 485-8869
Subtotal (1 unit)
SGD6.83(exc. GST)
SGD6.83/unit
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TDK 330 μF Capacitor 450V dc, Snap-in - B43545B5337M060
  • RS Stock No. 209-8676
  • Mfr. Part No. B43545B5337M060
Subtotal (1 unit)
SGD17.96(exc. GST)
SGD17.96/unit
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Schurter, FMAC RAIL 20 A 480V ac 50Hz, 60 Hz, DIN Rail RFI Filter, Screw 3 Phase
  • RS Stock No. 162-2629
  • Mfr. Part No. FMAC-3RYB-2010
Subtotal (5 units, in boxes of 5)
SGD367.30(exc. GST)
SGD73.46/unit
In Stock
Vishay 249 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole, 249FGJS0XB25103KA
  • RS Stock No. 410-205
  • Mfr. Part No. 249FGJS0XB25103KA
Subtotal (1 unit)
SGD24.11(exc. GST)
SGD24.11/unit
Stocked by manufacturer
Sato Parts Potentiometer Knob 25 mm, K-3 6 mm, Black
  • RS Stock No. 792-554
  • Mfr. Part No. K-3
Subtotal (1 unit)
SGD6.07(exc. GST)
SGD6.07/unit
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Phoenix Contact, VAL-SPP Surge Arrester 1200V dc Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 493-501
  • Mfr. Part No. 1466773
Subtotal (1 unit)
SGD499.91(exc. GST)
SGD499.91/unit
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Wurth Elektronik 100 μF Capacitor 50V dc, Through Hole Radial Lead
  • RS Stock No. 839-8857
  • Mfr. Part No. 860040674004
Subtotal (10 units, in packs of 10)
SGD4.66(exc. GST)
SGD0.466/unit
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