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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169669 Products showing for Passive Components

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Epson 32.768 kHz Crystal Unit ±20 ppm Surface Mount 4-Pin 2.38 mm 8 mm 3.2mm
  • RS Stock No. 173-2286
  • Mfr. Part No. Q13MC3061000311
Subtotal (1 reel of 250 units)
$580.00(exc. GST)
$2.32/unit
Last RS stock
Rubycon 1000 μF Capacitor 16V dc, Radial, Through Hole - 16YXF1000M10X20
  • RS Stock No. 224-4218
  • Mfr. Part No. 16YXF1000M10X20
Subtotal (1 pack of 5 units)
$2.49(exc. GST)
$0.498/unit
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TDK, A71-H14X 1400 V dc 15 kA, Through Hole 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 246-9894P
  • Mfr. Part No. B88069X2180S102
Subtotal 1 unit (supplied in a box)
$5.10(exc. GST)
$5.10/unit
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Wurth Elektronik, WE-KI Shielded Power Inductor 68 nH 5 % Q:1.7
  • RS Stock No. 485-434
  • Mfr. Part No. 744761168C
Subtotal (1 tape of 20 units)
$13.92(exc. GST)
$0.696/unit
Temporarily out of stock
Vishay 30 F Supercapacitor -20 → 50 % Tolerance, 235 EDLC 3V dc, Through Hole
  • RS Stock No. 196-7893
  • Mfr. Part No. MAL223551007E3
Subtotal (1 bag of 2 units)
$17.88(exc. GST)
$8.94/unit
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Bourns 33 μH Ferrite Bobbin Leaded Inductor, 13.5 A Idc, 17 mΩ Rdc 2500Vrms, 1130
  • RS Stock No. 874-9839
  • Mfr. Part No. 1130-330K-RC
Subtotal (1 unit)
$13.80(exc. GST)
$13.80/unit
Currently unavailable
TE Connectivity Ferrite Bead 500 μm (Surface) (0402), 600 Ω impedance at 100 MHz
  • RS Stock No. 245-5649
  • Mfr. Part No. BMC1EY0600AN
Subtotal (1 reel of 10000 units)
$340.00(exc. GST)
$0.034/unit
Temporarily out of stock
TE Connectivity 15 kΩ Metal Oxide Resistor 9 W 5 % ROX9J15K
  • RS Stock No. 187-1107
  • Mfr. Part No. ROX9J15K
Subtotal (1 box of 300 units)
$438.30(exc. GST)
$1.461/unit
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Wurth Elektronik Ferrite Ring Ferrite Core 28 mm, For: General Electronics 9 mm ID 16 mm OD
  • RS Stock No. 124-1537
  • Mfr. Part No. 7427005
Subtotal (1 pack of 10 units)
$21.47(exc. GST)
$2.147/unit
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Murata 10 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Through Hole Radial
  • RS Stock No. 190-2928
  • Mfr. Part No. RDER71H103K0P1H03B
Subtotal (1 pack of 10 units)
$3.34(exc. GST)
$0.334/unit
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TDK 470 μF Capacitor 450V dc, Snap-in - B43547A5477M060
  • RS Stock No. 838-5028
  • Mfr. Part No. B43547A5477M060
Subtotal (1 unit)
$24.89(exc. GST)
$24.89/unit
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Bourns 2 mH 500 mA Common Mode Choke 2 Ω 85V
  • RS Stock No. 285-0567
  • Mfr. Part No. 093267
Subtotal (1 unit)
$6.04(exc. GST)
$6.04/unit
In Stock
Vishay CRCW 4.7 mΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW06034M70FKEA
  • RS Stock No. 181-7849
  • Mfr. Part No. CRCW06034M70FKEA
Subtotal (1 reel of 1000 units)
$14.00(exc. GST)
$0.014/unit
In Stock
Wurth Elektronik Ferrite Ring EMI Suppression Axial Ferrite Bead 25 mm, For: Wrapping Cable, Coaxial Cable,
  • RS Stock No. 124-1543
  • Mfr. Part No. 74270032
Subtotal (1 pack of 10 units)
$15.09(exc. GST)
$1.509/unit
Currently unavailable
Wurth Elektronik WCAP-FTXX Film Capacitor X2, ±10 %, 220 nF 310 V dc 310V ac, Through Hole
  • RS Stock No. 163-3472
  • Mfr. Part No. 890334024002
Subtotal (1 bag of 500 units)
$236.00(exc. GST)
$0.472/unit
Temporarily out of stock
TDK, Standard Metal Oxide Varistor 2.5 nF 100 A, Clamping 250 V, Varistor 150 V
  • RS Stock No. 170-2868
  • Mfr. Part No. B72220S0950K101
Subtotal (1 reel of 250 units)
$228.75(exc. GST)
$0.915/unit
Temporarily out of stock
Qnity Laird Ferrite Bead Solid Cylindrical Core 18.75 mm, For: EMI Suppression 6.75 mm ID 18.75 mm OD
  • RS Stock No. 888-634
  • Mfr. Part No. 28A0593-0A2
Subtotal (1 unit)
$4.77(exc. GST)
$4.77/unit
Last RS stock
TE Connectivity 3520 3.3 kΩ, 2512 Thick Film Surface Mount Resistor ±5 % Surface 1 W - 35203K3JT
  • RS Stock No. 224-0418
  • Mfr. Part No. 35203K3JT
Subtotal (1 pack of 10 units)
$1.79(exc. GST)
$0.179/unit
In Stock
1 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, 3314
  • RS Stock No. 691-7399P
  • Mfr. Part No. 3314J-1-102E
Subtotal 5 units (supplied on a continuous strip)
$11.88(exc. GST)
$2.376/unit
In Stock
TDK, Standard Metal Oxide Varistor 850 pF 1 A, Clamping 77 V, Varistor 39 V
  • RS Stock No. 289-7418
  • Mfr. Part No. B72205S0250K101
Subtotal (1 pack of 5 units)
$2.39(exc. GST)
$0.478/unit
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