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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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
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Surge Protection Components
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163824 Products showing for Passive Components

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RS PRO 18 kΩ Metal Film Resistor 0.4 W 0.25 %
  • RS Stock No. 174-2736
Subtotal (100 units, in packs of 100)
SGD11.20(exc. GST)
SGD0.112/unit
Temporarily out of stock
Nichicon 68 μF Capacitor 400V dc, Snap-in - LLS2G680MELY
  • RS Stock No. 167-1409
  • Mfr. Part No. LLS2G680MELY
Subtotal (250 units, in bags of 250)
SGD502.50(exc. GST)
SGD2.01/unit
In Stock
RS PRO 680 μF Capacitor 10V dc, Through Hole Radial Lead
  • RS Stock No. 170-1157
Subtotal (1000 units, in bags of 1000)
SGD125.00(exc. GST)
SGD0.125/unit
In Stock
Bourns CR0603 470 Ω, 0603 Thick Film Resistor 1 % 100 mW - CR0603-FX-4700ELF
  • RS Stock No. 247-7056
  • Mfr. Part No. CR0603-FX-4700ELF
Subtotal (5000 units, on reels of 5000)
SGD20.00(exc. GST)
SGD0.004/unit
Temporarily out of stock
Nichicon 4.7 μF Capacitor 400V dc, Surface Solder - ULR2G4R7MNL1GS
  • RS Stock No. 167-1331
  • Mfr. Part No. ULR2G4R7MNL1GS
Subtotal (500 units, on reels of 500)
SGD288.50(exc. GST)
SGD0.577/unit
Last RS stock
Vishay 10 Ω Wirewound Resistor 3 W 1 % RLP0310R00FB15
  • RS Stock No. 167-9898
  • Mfr. Part No. RLP0310R00FB15
Subtotal (20 units, in packs of 20)
SGD334.68(exc. GST)
SGD16.734/unit
In Stock
47 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Vishay, T7
  • RS Stock No. 167-9368
  • Mfr. Part No. T7YA473MT20
Subtotal (50 units, in tubes of 50)
SGD187.90(exc. GST)
SGD3.758/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 250V dc, ±10 %, Surface
  • RS Stock No. 179-5815P
  • Mfr. Part No. C2012X7T2E104K125AE
Subtotal (100 units, supplied on a continuous strip)
SGD27.60(exc. GST)
SGD0.276/unit
Temporarily out of stock
Nichicon 3300 μF Capacitor 16V dc, Radial, Through Hole - UVZ1C332MHD Radial Lead
  • RS Stock No. 167-1191
  • Mfr. Part No. UVZ1C332MHD
Subtotal (100 units, in boxes of 100)
SGD82.80(exc. GST)
SGD0.828/unit
Being discontinued
Nichicon 10 μF Capacitor 400V dc, Through Hole Radial Lead
  • RS Stock No. 165-3663
  • Mfr. Part No. UCS2G100MPD
Subtotal (200 units, in boxes of 200)
SGD130.60(exc. GST)
SGD0.653/unit
In Stock
Wurth Elektronik 330 μH Leaded Inductor, 1.2 Ω Rdc
  • RS Stock No. 485-516
  • Mfr. Part No. 744732331
Subtotal (1 unit)
SGD18.71(exc. GST)
SGD18.71/unit
Currently unavailable
Vishay 149 250 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole
  • RS Stock No. 167-9638
  • Mfr. Part No. 14910F0GJSX10254KA
Subtotal (50 units, in boxes of 50)
SGD843.45(exc. GST)
SGD16.869/unit
Currently unavailable
TDK, EHV 720 V dc 10 kA, Through Hole 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 167-0451
  • Mfr. Part No. B88069X0780S102
Subtotal (100 units, in boxes of 100)
SGD160.00(exc. GST)
SGD1.60/unit
Temporarily out of stock
Vishay 100 mΩ Thick Film Resistor 1 W 5 % HTS05231006JPB19
  • RS Stock No. 167-8831
  • Mfr. Part No. HTS05231006JPB19
Subtotal (25 units, in trays of 25)
SGD1,200.325(exc. GST)
SGD48.013/unit
In Stock
Bourns CR0603 33 Ω, 0603 Thick Film Resistor 1 % 100 mW
  • RS Stock No. 247-7055P
  • Mfr. Part No. CR0603-FX-33R0ELF
Subtotal (1000 units, supplied on a reel)
SGD7.00(exc. GST)
SGD0.007/unit
In Stock
WIMA MKS4 Film Capacitor 2.2 μF 160V ac 250 V dc, Through Hole
  • RS Stock No. 116-600
  • Mfr. Part No. MKS4F042205G00KSSD
Subtotal (5 units, in packs of 5)
SGD13.45(exc. GST)
SGD2.69/unit
In Stock
TE Connectivity THS25R01J, 10 mΩ 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 164-9049
  • Mfr. Part No. THS25R01J
Subtotal (100 units, in boxes of 100)
SGD502.20(exc. GST)
SGD5.022/unit
In Stock
10 kΩ, Surface Trimmer Potentiometer, Pin 0.25 W Top Adjust Bourns, 3214
  • RS Stock No. 167-5404
  • Mfr. Part No. 3214X-1-103E
Subtotal (200 units, on reels of 200)
SGD442.80(exc. GST)
SGD2.214/unit
Last RS stock
Vishay 860 1 kΩ Rotary Potentiometer 10-Turns 1-Gang Panel Mount
  • RS Stock No. 167-9345
  • Mfr. Part No. 860B1102
Subtotal (10 units, in boxes of 10)
SGD3,676.31(exc. GST)
SGD367.631/unit
In Stock
KEMET R46 Film Capacitor X2, ±10 %, 220 nF 310 V dc 310V ac, Through Hole
  • RS Stock No. 165-0284
  • Mfr. Part No. R463I322050L2K
Subtotal (10 units, in packs of 10)
SGD8.16(exc. GST)
SGD0.816/unit
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