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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Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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160794 Products showing for Passive Components

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Vishay 22 pF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 272-7848P
  • Mfr. Part No. VJ0603A220FXACW1BC
Subtotal 100 units (supplied on a continuous strip)
SGD6.00(exc. GST)
SGD0.06/unit
Currently unavailable
TE Connectivity CPF 392 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B392KE1
  • RS Stock No. 122-8841
  • Mfr. Part No. CPF0603B392KE1
Subtotal (1 bag of 20 units)
SGD7.60(exc. GST)
SGD0.38/unit
Limited stock
TE Connectivity 470 mΩ Wirewound Resistor 14 W 5 %
  • RS Stock No. 666-1557P
  • Mfr. Part No. C14R47JL
Subtotal 5 units (supplied as a tape)
SGD33.18(exc. GST)
SGD6.636/unit
Last RS stock
Wurth Elektronik, WE-PMI, 0806 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, 1 μH Multilayer ±20 % 1.8
  • RS Stock No. 923-6340
  • Mfr. Part No. 74479876210C
Subtotal (1 pack of 50 units)
SGD23.85(exc. GST)
SGD0.477/unit
In Stock
Vishay 10 mΩ Metal Glaze Resistor 0.5 W 5 %
  • RS Stock No. 484-4450P
  • Mfr. Part No. VR37000001005JA100
Subtotal 25 units (supplied as a tape)
SGD8.35(exc. GST)
SGD0.334/unit
In Stock
TDK 470 nF Multilayer Ceramic Capacitor, 35V dc, ±10 %, Surface
  • RS Stock No. 915-5679P
  • Mfr. Part No. CGA3E1X7R1V474K080AC
Subtotal 50 units (supplied on a continuous strip)
SGD6.30(exc. GST)
SGD0.126/unit
In Stock
KEMET 0.5 pF Multilayer Ceramic Capacitor, 250V dc, 0.25 pF, Surface
  • RS Stock No. 769-7106P
  • Mfr. Part No. CBR06C508CAGAC
Subtotal 100 units (supplied on a continuous strip)
SGD33.80(exc. GST)
SGD0.338/unit
In Stock
Wurth Elektronik 68 μF Capacitor 450V dc, Snap-in - 861111483004
  • RS Stock No. 123-2697
  • Mfr. Part No. 861111483004
Subtotal (1 pack of 5 units)
SGD21.61(exc. GST)
SGD4.322/unit
Currently unavailable
TDK YFF-P, Feedthrough Capacitor 16V dc 100 nF, Surface
  • RS Stock No. 144-7132
  • Mfr. Part No. YFF18PC1C104MT0H0N
Subtotal (1 reel of 10000 units)
SGD1,230.00(exc. GST)
SGD0.123/unit
Temporarily out of stock
Wurth Elektronik, WE-CLFS 8 A 250V 50Hz, 60 Hz, Chassis Mount EMC Filter, Fast-On 1 Phase
  • RS Stock No. 185-7120
  • Mfr. Part No. 810911008
Subtotal (1 tray of 9 units)
SGD229.95(exc. GST)
SGD25.55/unit
In Stock
100 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3386
  • RS Stock No. 522-2700P
  • Mfr. Part No. 3386P-1-104LF
Subtotal 1 unit (supplied in a tube)
SGD2.28(exc. GST)
SGD2.28/unit
Temporarily out of stock
Murata Power Solutions 33 μH Bobbin Inductor, Max SRF:9.1 MHz, Q:27, 9.3 A Idc, 17 mΩ Rdc, 1400
  • RS Stock No. 106-7749
  • Mfr. Part No. 1433393C
Subtotal (1 box of 25 units)
SGD91.90(exc. GST)
SGD3.676/unit
In Stock
KEMET 187 μH 8 A Common Mode Choke 37.6 mΩ
  • RS Stock No. 183-6750
  • Mfr. Part No. SHBC14-1R2A0187V
Subtotal (1 unit)
SGD9.27(exc. GST)
SGD9.27/unit
In Stock
Murata 8.2 pF Multilayer Ceramic Capacitor, 50V dc, 0.1 pF, Surface
  • RS Stock No. 185-1825
  • Mfr. Part No. GRM0335C1H8R2BA01D
Subtotal (1 reel of 1000 units)
SGD7.00(exc. GST)
SGD0.007/unit
In Stock
Wurth Elektronik, WE-HCI, 2212 Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Ferrite Core, 12 μH Flat
  • RS Stock No. 770-7180
  • Mfr. Part No. 74435581200
Subtotal (1 unit)
SGD10.07(exc. GST)
SGD10.07/unit
Temporarily out of stock
Yageo SR 51 Ω, 0402 Thick Film Surface Mount Resistor ±5 % 0.06 W - SR0402JR-0751RL
  • RS Stock No. 197-8379
  • Mfr. Part No. SR0402JR-0751RL
Subtotal (1 reel of 10000 units)
SGD640.00(exc. GST)
SGD0.064/unit
In Stock
Panasonic ERJP08 330 Ω, 1206 Thick Film Surface Mount Resistor ±5 % 0.66 W - ERJP08J331V
  • RS Stock No. 154-059
  • Mfr. Part No. ERJP08J331V
Subtotal (1 pack of 250 units)
SGD13.00(exc. GST)
SGD0.052/unit
In Stock
Sifam 11.5 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft D Shaped, 3/03/DR110-006/237/232
  • RS Stock No. 299-4935
  • Mfr. Part No. 3/03/DR110-006/237/232
Subtotal (1 pack of 5 units)
SGD4.80(exc. GST)
SGD0.96/unit
Temporarily out of stock
TDK Thermistor, NTC Type 10 kΩ 2 mm 3 mm 5 mm
  • RS Stock No. 167-8522
  • Mfr. Part No. B57164K0103J000
Subtotal (1 box of 2000 units)
SGD1,188.00(exc. GST)
SGD0.594/unit
In Stock
Panasonic ERA 820 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB821V
  • RS Stock No. 566-822
  • Mfr. Part No. ERA3AEB821V
Subtotal (1 pack of 5 units)
SGD0.67(exc. GST)
SGD0.134/unit
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