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
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Passive Components Kits
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Rotary Encoders
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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162972 Products showing for Passive Components

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Elma Potentiometer Knob 21 mm 0.25 in, Grey
  • RS Stock No. 243-9566
  • Mfr. Part No. 023-4510
Subtotal (1 unit)
SGD8.37(exc. GST)
SGD8.37/unit
Temporarily out of stock
KEMET 4.7 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 210-7039
  • Mfr. Part No. C0603C472K1TACAUTO
Subtotal (1 reel of 4000 units)
SGD876.00(exc. GST)
SGD0.219/unit
In Stock
ROHM MCRS Series 820 Ω, 0805 Thick Film Resistor ±1 % Surface 0.25 W - MCR10SEQPF8201
  • RS Stock No. 780-710
  • Mfr. Part No. MCR10SEQPF8201
Subtotal (1 tape of 500 units)
SGD12.50(exc. GST)
SGD0.025/unit
Temporarily out of stock
Wurth Elektronik, WE-PD, 1050 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 μH ±20 % 1.5 A Idc
  • RS Stock No. 789-6952
  • Mfr. Part No. 7447714101
Subtotal (1 unit)
SGD3.10(exc. GST)
SGD3.10/unit
Last RS stock
TE Connectivity 120 kΩ Metal Oxide Resistor 2 W 5 % ROX2SJ120K
  • RS Stock No. 214-2235
  • Mfr. Part No. ROX2SJ120K
Subtotal (1 pack of 10 units)
SGD2.58(exc. GST)
SGD0.258/unit
In Stock
Abracon, ASPI-8040S Shielded Surface Mount Inductor with a Nickel Zinc Ferrite Core, 220 μH ±30/±20 % 800 mA Idc
  • RS Stock No. 240-0961
  • Mfr. Part No. ASPI-8040S-221M-T
Subtotal (1 pack of 25 units)
SGD14.15(exc. GST)
SGD0.566/unit
Currently unavailable
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Vishay TNPW 0.012 mΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - TNPW060312K0BEEA
  • RS Stock No. 262-0677
  • Mfr. Part No. TNPW060312K0BEEA
Subtotal (1 reel of 5000 units)
SGD1,190.00(exc. GST)
SGD0.238/unit
Last RS stock
Vishay MKT1820 Film Capacitor 330 nF 200V ac 400 V dc, Through Hole 4
  • RS Stock No. 261-9809
  • Mfr. Part No. MKT1820433405
Subtotal (1 bag of 2 units)
SGD3.71(exc. GST)
SGD1.855/unit
Temporarily out of stock
Murata 100 pF Multilayer Ceramic Capacitor, 50V dc, ±2 %, Surface
  • RS Stock No. 169-2726
  • Mfr. Part No. GRM0335C1H101GA01D
Subtotal (1 reel of 15000 units)
SGD45.00(exc. GST)
SGD0.003/unit
Temporarily out of stock
Vishay CRCW08 2 kΩ, 0805 Thick Film Thick Film Resistor ±1% Surface Mount 0.25 W - CRCW08052K00FKEA
  • RS Stock No. 782-951
  • Mfr. Part No. CRCW08052K00FKEA
Subtotal (1 tape of 100 units)
SGD3.40(exc. GST)
SGD0.034/unit
Last RS stock
TDK Single Layer Ceramic Capacitor 12 pF 3kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1948
  • Mfr. Part No. CC45SL3FD120JYGNA
Subtotal (1 bag of 10 units)
SGD3.16(exc. GST)
SGD0.316/unit
Temporarily out of stock
Yageo 10 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 198-8078
  • Mfr. Part No. CC0805KKX5R8BB106
Subtotal (1 tape of 20 units)
SGD3.88(exc. GST)
SGD0.194/unit
In Stock
TE Connectivity, KEM-BS 75 A 520V ac 50Hz, 60 Hz, Chassis Mount EMI Filter, Terminal Block 3 Phase
  • RS Stock No. 209-4479
  • Mfr. Part No. 75KEMS10BBSD
Subtotal (1 unit)
SGD730.14(exc. GST)
SGD730.14/unit
In Stock
Panasonic 330 μF Tantalum Capacitor 4V dc, TPF Series
  • RS Stock No. 230-6303
  • Mfr. Part No. 4TPF330MFL
Subtotal (1 tape of 5 units)
SGD20.20(exc. GST)
SGD4.04/unit
In Stock
Murata 8.2 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface
  • RS Stock No. 790-0588
  • Mfr. Part No. GJM1555C1H8R2CB01D
Subtotal (1 reel of 1000 units)
SGD19.00(exc. GST)
SGD0.019/unit
In Stock
Abracon 48 MHz Crystal 20 ppm Surface Mount 1 mm 3.5 mm 2.5mm
  • RS Stock No. 232-7254
  • Mfr. Part No. ABM8G-48.000MHZ-18-D2Y-T
Subtotal (1 pack of 10 units)
SGD13.10(exc. GST)
SGD1.31/unit
In Stock
Bourns, CC453232A, 1812 Multilayer Surface Mount Inductor with a Ferrite Core, 22 μH Ferrite Core ±10 % 620 mA Idc Q:20
  • RS Stock No. 212-0619
  • Mfr. Part No. CC453232A-220KL
Subtotal (1 reel of 500 units)
SGD168.00(exc. GST)
SGD0.336/unit
Temporarily out of stock
Vishay, 1 Ω 500 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 789-1216P
  • Mfr. Part No. RPS0500DH1R00JB
Subtotal 1 unit (supplied in a box)
SGD307.99(exc. GST)
SGD307.99/unit
Temporarily out of stock
Vishay E 2 mΩ, 1206 Thin Film Surface Mount Resistor ±0.1 % 0.4 W - MCA1206MD2004BP100
  • RS Stock No. 205-9489
  • Mfr. Part No. MCA1206MD2004BP100
Subtotal (1 tape of 5 units)
SGD7.50(exc. GST)
SGD1.50/unit
Temporarily out of stock
TDK, B84142B*R000 25 A 250V ac/dc 60Hz, Screw EMC Filter, Terminal Block 1 Phase
  • RS Stock No. 213-8416
  • Mfr. Part No. B84142B0025R000
Subtotal (1 unit)
SGD325.83(exc. GST)
SGD325.83/unit
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