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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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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160770 Products showing for Passive Components

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654 of 999+
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Panasonic 100 μF Aluminium Electrolytic Capacitor 35V dc, Surface Solder - EEEFT1V101AP 1000
  • RS Stock No. 729-6273
  • Mfr. Part No. EEEFT1V101AP
Subtotal (1 pack of 10 units)
SGD4.30(exc. GST)
SGD0.43/unit
In Stock
Vishay WSL 50 mΩ, 1206 Metal Strip Surface Mount Resistor ±1 % 0.25 W - WSL1206R0500FEA
  • RS Stock No. 683-6432
  • Mfr. Part No. WSL1206R0500FEA
Subtotal (1 pack of 5 units)
SGD4.58(exc. GST)
SGD0.916/unit
In Stock
Abracon 12.288 MHz Crystal ±20 ppm HC-49 4.2 mm 11.4 mm 4.7mm
  • RS Stock No. 171-0516
  • Mfr. Part No. ABLS-12.288MHZ-B2-T
Subtotal (1 pack of 25 units)
SGD8.075(exc. GST)
SGD0.323/unit
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KEMET 470 nF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 648-0806
  • Mfr. Part No. C0805C474K4RACTU
Subtotal (1 pack of 10 units)
SGD0.56(exc. GST)
SGD0.056/unit
Temporarily out of stock
KEMET F161 Film Capacitor, ±10 %, 100 nF 630 V dc 250V ac, Surface
  • RS Stock No. 144-4494
  • Mfr. Part No. F161ZS104K630V
Subtotal (1 pack of 2 units)
SGD10.74(exc. GST)
SGD5.37/unit
Last RS stock
TE Connectivity CRG 150 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - CRG0603F150K
  • RS Stock No. 135-8311
  • Mfr. Part No. CRG0603F150K
Subtotal (1 reel of 5000 units)
SGD35.00(exc. GST)
SGD0.007/unit
Currently unavailable
Vishay CRCW 10 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW060310R0FKEA
  • RS Stock No. 169-4222
  • Mfr. Part No. CRCW060310R0FKEA
Subtotal (1 reel of 5000 units)
SGD90.00(exc. GST)
SGD0.018/unit
In Stock
Wurth Elektronik 56 μF Capacitor 35V dc, Through Hole Radial Lead
  • RS Stock No. 839-9241
  • Mfr. Part No. 860160573008
Subtotal (1 pack of 25 units)
SGD8.15(exc. GST)
SGD0.326/unit
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20 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust TT Electronics/BI, 67
  • RS Stock No. 144-2222
  • Mfr. Part No. 67WR20KLF
Subtotal (1 pack of 5 units)
SGD12.15(exc. GST)
SGD2.43/unit
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Abracon 25 MHz Crystal ±20 ppm HC-49 2-Pin 3.5 mm 11.5 mm 5mm
  • RS Stock No. 171-0611
  • Mfr. Part No. ABL-25.000MHZ-B2F
Subtotal (1 pack of 25 units)
SGD8.65(exc. GST)
SGD0.346/unit
Temporarily out of stock
KEMET 1 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 146-6512
  • Mfr. Part No. C0603C102J5GACTU
Subtotal (1 reel of 4000 units)
SGD64.00(exc. GST)
SGD0.016/unit
Currently unavailable
Vishay CRCW 49.9 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW060349K9FKEA
  • RS Stock No. 169-4408
  • Mfr. Part No. CRCW060349K9FKEA
Subtotal (1 reel of 5000 units)
SGD70.00(exc. GST)
SGD0.014/unit
Temporarily out of stock
TDK Ferrite Ring Ferrite Core 7.3 mm 9.6 mm ID 17.2 mm OD
  • RS Stock No. 167-8375
  • Mfr. Part No. B64290L0045X830
Subtotal (1 box of 2000 units)
SGD922.00(exc. GST)
SGD0.461/unit
In Stock
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite 14.5 mm, For: Multiconductor Wire, Wire, Coaxial Cable,
  • RS Stock No. 124-1854
  • Mfr. Part No. 742701121
Subtotal (1 pack of 20 units)
SGD15.16(exc. GST)
SGD0.758/unit
In Stock
Murata, LQW, 0402 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 8.2 nH ±3 % 540 mA Idc Q:25
  • RS Stock No. 107-435
  • Mfr. Part No. LQW15AN8N2H00D
Subtotal (1 bag of 25 units)
SGD3.00(exc. GST)
SGD0.12/unit
Temporarily out of stock
TDK, B84113H 10 A 250V ac/dc 50Hz, 60 Hz, Chassis Mount EMC Filter, Lug 1 Phase
  • RS Stock No. 124-5304
  • Mfr. Part No. B84113H0000M110
Subtotal (1 unit)
SGD56.51(exc. GST)
SGD56.51/unit
In Stock
Bourns CRE 0.007 Ω, 2512 Metal Strip Resistor 1 % Surface 2 W - CRE2512-FZ-R007E-2
  • RS Stock No. 630-379
  • Mfr. Part No. CRE2512-FZ-R007E-2
Subtotal (1 tape of 20 units)
SGD16.18(exc. GST)
SGD0.809/unit
Temporarily out of stock
RS PRO 470 μF Capacitor 35V dc, Through Hole Radial Lead
  • RS Stock No. 181-5411
Subtotal (1 pack of 25 units)
SGD12.575(exc. GST)
SGD0.503/unit
Last RS stock
Vishay CRCW 68 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW080568R0FKEA
  • RS Stock No. 169-4754
  • Mfr. Part No. CRCW080568R0FKEA
Subtotal (1 reel of 5000 units)
SGD110.00(exc. GST)
SGD0.022/unit
Last RS stock
Vishay CRCW 20 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW060320R0FKEA
  • RS Stock No. 169-4289
  • Mfr. Part No. CRCW060320R0FKEA
Subtotal (1 reel of 5000 units)
SGD70.00(exc. GST)
SGD0.014/unit
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