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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160789 Products showing for Passive Components

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In Stock
Panasonic, ETQP4M, 1040 Surface Mount Inductor with a Metal Composite Core, 4.7 μH Integral Construction ±20 % 10.4 A
  • RS Stock No. 122-1766
  • Mfr. Part No. ETQP4M4R7KVC
Subtotal (1 bag of 10 units)
SGD9.72(exc. GST)
SGD0.972/unit
Last RS stock
Vishay D2TO20 10 mΩ, TO-263 Thick Film Surface Mount Resistor ±1 % 20 W - D2TO020CR0100FTE3
  • RS Stock No. 168-0011
  • Mfr. Part No. D2TO020CR0100FTE3
Subtotal (1 tube of 50 units)
SGD910.00(exc. GST)
SGD18.20/unit
Temporarily out of stock
Wurth Elektronik, WE-CAIR, 3168 Unshielded Surface Mount Air Coil Inductor with a Copper Core, 35.5 nH ±5 % 4 A Idc
  • RS Stock No. 163-8196
  • Mfr. Part No. 744914135
Subtotal (1 reel of 500 units)
SGD445.50(exc. GST)
SGD0.891/unit
In Stock
KEMET 1000 μF Capacitor 400V dc, Snap-in
  • RS Stock No. 339-8221P
  • Mfr. Part No. ALC10C102EL400
Subtotal 1 unit (supplied in a box)
SGD36.16(exc. GST)
SGD36.16/unit
Currently unavailable
VPG Foil Resistors 10 kΩ Metal Foil Resistor 0.6 W 0.005 % Y145310K0000V9L
  • RS Stock No. 763-7303
  • Mfr. Part No. Y145310K0000V9L
Subtotal (1 unit)
SGD48.28(exc. GST)
SGD48.28/unit
Last RS stock
TE Connectivity 12 Ω Metal Oxide Resistor 0.5 W 5 %
  • RS Stock No. 187-0903
  • Mfr. Part No. ROX05SJ12R
Subtotal (1 pack of 20 units)
SGD2.16(exc. GST)
SGD0.108/unit
In Stock
TDK 100 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 904-0004
  • Mfr. Part No. CGA2B2C0G1H101J050BA
Subtotal (1 pack of 200 units)
SGD5.80(exc. GST)
SGD0.029/unit
Temporarily out of stock
Murata 10 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 820-2762P
  • Mfr. Part No. GRM21BR61C106KE15K
Subtotal 100 units (supplied on a continuous strip)
SGD5.10(exc. GST)
SGD0.051/unit
In Stock
Yageo 1 kΩ Carbon Film Carbon Film Fixed Resistor 0.25 W 5 % CFR-25JT-52-1K
  • RS Stock No. 199-1785
  • Mfr. Part No. CFR-25JT-52-1K
Subtotal (1 tape of 200 units)
SGD5.80(exc. GST)
SGD0.029/unit
In Stock
RS PRO 200 Ω Metal Film Resistor 1 W 0.5 %
  • RS Stock No. 174-2684
Subtotal (1 box of 1000 units)
SGD68.00(exc. GST)
SGD0.068/unit
In Stock
Yageo AC 3.3 kΩ, 0603 Thick Film Resistor ±5 % 0.1 W
  • RS Stock No. 197-8138P
  • Mfr. Part No. AC0603JR-073K3L
Subtotal 500 units (supplied on a reel)
SGD4.50(exc. GST)
SGD0.009/unit
Temporarily out of stock
Abracon, ASPI-6045S Shielded Surface Mount Inductor with a Ferrite Core, 220 μH Flat Wire Winding ±20 % 590 mA Idc
  • RS Stock No. 240-0949
  • Mfr. Part No. ASPI-6045S-221M-T
Subtotal (1 reel of 1500 units)
SGD439.50(exc. GST)
SGD0.293/unit
Temporarily out of stock
Panasonic ERA 30.1 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6ARB3012V
  • RS Stock No. 795-5092
  • Mfr. Part No. ERA6ARB3012V
Subtotal (1 tape of 100 units)
SGD42.00(exc. GST)
SGD0.42/unit
In Stock
KEMET 220 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 146-6335
  • Mfr. Part No. C0805C224K3RACTU
Subtotal (1 reel of 4000 units)
SGD124.00(exc. GST)
SGD0.031/unit
Temporarily out of stock
TDK 3.3 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 110-9743
  • Mfr. Part No. CGA3E1X5R1A335K080AC
Subtotal (1 reel of 4000 units)
SGD356.00(exc. GST)
SGD0.089/unit
Last RS stock
Vishay CRCW 820 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW1206820KFKEA
  • RS Stock No. 169-4969
  • Mfr. Part No. CRCW1206820KFKEA
Subtotal (1 reel of 5000 units)
SGD135.00(exc. GST)
SGD0.027/unit
In Stock
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
In Stock
TDK 27 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 144-7349
  • Mfr. Part No. CGA1A2C0G1H270J030BA
Subtotal (1 pack of 250 units)
SGD9.75(exc. GST)
SGD0.039/unit
In Stock
KEMET 33 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 170-0132
  • Mfr. Part No. C0603C330J5GACTU
Subtotal (1 reel of 1000 units)
SGD36.00(exc. GST)
SGD0.036/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
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