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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EMI Filters & Protection
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Fixed Resistors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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162667 Products showing for Passive Components

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470 / 999+
Temporarily out of stock
Wurth Elektronik 22 μH Leaded Inductor, Max SRF:9 MHz, 8 A Idc, 10 mΩ Rdc, WE-HIDA THT
  • RS Stock No. 217-7337
  • Mfr. Part No. 7444011480220
Subtotal (1 tray of 80 units)
MYR2,013.60
MYR25.17/unit
In Stock
ROHM ESR18 39 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W
  • RS Stock No. 264-1816P
  • Mfr. Part No. ESR18EZPF39R0
Subtotal 100 units (supplied on a continuous strip)
MYR20.00
MYR0.20/unit
Temporarily out of stock
Yageo RC 68 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 125 mW - RC0805FR-0768RL
  • RS Stock No. 242-7041
  • Mfr. Part No. RC0805FR-0768RL
Subtotal (1 reel of 5000 units)
MYR145.00
MYR0.029/unit
In Stock
Bourns, SRP1038A, 1038 Shielded Wirewound Surface Mount Inductor with a Carbonyl Powder Core, 1 μH ±20 % 18 A Idc Q:20
  • RS Stock No. 819-3315
  • Mfr. Part No. SRP1038A-1R0M
Subtotal (1 bag of 5 units)
MYR29.78
MYR5.956/unit
In Stock
KOA 1.5 kΩ Carbon Film Resistor 0.25 W 5 % CF1/4C152J
  • RS Stock No. 475-6599
  • Mfr. Part No. CF1/4C152J
Subtotal (1 bag of 100 units)
MYR23.30
MYR0.233/unit
Currently unavailable
Vishay, IHLP, 1212 Shielded Surface Mount Inductor with a Metal Composite Core, 470 nH ±20 % 5.99 A Idc
  • RS Stock No. 248-8073P
  • Mfr. Part No. IHLP1212ABEVR47M5A
Subtotal 5 units (supplied on a continuous strip)
MYR17.97
MYR3.594/unit
In Stock
TE Connectivity 5.11 kΩ Metal Film Resistor 0.25 W 0.1 % YR1B5K11CC
  • RS Stock No. 754-6724
  • Mfr. Part No. YR1B5K11CC
Subtotal (1 pack of 5 units)
MYR17.03
MYR3.406/unit
Temporarily out of stock
Wurth Elektronik 302350299 Gasket of Polyurethane Foam With Adhesive Tape 1 m x 35mm x 2 mm
  • RS Stock No. 748-369
  • Mfr. Part No. 302350299
Subtotal (1 unit)
MYR119.95
MYR119.95/unit
Temporarily out of stock
Epson, 32.76MHz Crystal Oscillator Crystal Oscillator CMOS, 10-Pin Surface Mount X1B000351000212
  • RS Stock No. 842-389P
  • Mfr. Part No. X1B000351000212
Subtotal 1 unit (supplied on a continuous strip)
MYR121.24
MYR121.24/unit
In Stock
KOA 470 Ω Carbon Film Resistor 0.25 W 5 % CF1/4C471J
  • RS Stock No. 475-6511
  • Mfr. Part No. CF1/4C471J
Subtotal (1 bag of 100 units)
MYR20.50
MYR0.205/unit
Temporarily out of stock
Vishay 100 μF MnO2 Tantalum Capacitor 35V dc, Surface, 597D Series
  • RS Stock No. 871-7327P
  • Mfr. Part No. 597D107X0035F2T
Subtotal 1 unit (supplied on a continuous strip)
MYR64.96
MYR64.96/unit
In Stock
KYOCERA AVX 220 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 698-3396
  • Mfr. Part No. 08053C224KAZ2A
Subtotal (1 pack of 25 units)
MYR14.90
MYR0.596/unit
Unavailable
Nichicon 22μF Electrolytic Capacitor 50V dc, Through Hole - UST1H220MDD
  • RS Stock No. 501-9273P
  • Mfr. Part No. UST1H220MDD
Subtotal 5 units (supplied in a bag)
MYR12.29
MYR2.458/unit
Currently unavailable
Vishay, 6767 Shielded Surface Mount Inductor with a Metal Composite Core, 10 μH 19 A Idc
  • RS Stock No. 748-7612
  • Mfr. Part No. IHLP6767GZER100M11
Subtotal (1 unit)
MYR13.70
MYR13.70/unit
Last RS stock
TE Connectivity 21 Ω Metal Film Resistor 0.25 W 0.1 % YR1B21RCC
  • RS Stock No. 754-8830
  • Mfr. Part No. YR1B21RCC
Subtotal (1 pack of 5 units)
MYR21.36
MYR4.272/unit
In Stock
Amphenol ST0228-30-001-A Whip Antenna with SMA Connector, ZigBee, Bluetooth (BLE), WiFi
  • RS Stock No. 205-108
  • Mfr. Part No. ST0228-30-001-A
Subtotal (1 unit)
MYR45.97
MYR45.97/unit
In Stock
Yageo 4.7 nF Multilayer Ceramic Capacitor, 250V dc, ±10 %, Surface
  • RS Stock No. 198-8285
  • Mfr. Part No. CS0805KRX7RYBB472
Subtotal (1 tape of 50 units)
MYR27.95
MYR0.559/unit
In Stock
100 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, 3314
  • RS Stock No. 691-7402
  • Mfr. Part No. 3314J-1-104E
Subtotal (1 pack of 5 units)
MYR32.30
MYR6.46/unit
Currently unavailable
Panasonic 10 μF Capacitor 250V dc, Radial, Through Hole - ECA2EM100 Radial Lead
  • RS Stock No. 228-7170
  • Mfr. Part No. ECA2EM100
Subtotal (1 pack of 5 units)
MYR12.83
MYR2.566/unit
In Stock
Wurth Elektronik, WE-TPC, 6823 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 150 μH ±30 % 430 mA Idc
  • RS Stock No. 800-8055
  • Mfr. Part No. 744062151
Subtotal (1 unit)
MYR6.90
MYR6.90/unit
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