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.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

143959 Products showing for Passive Components

5 / 999+
Roxburgh EMC 7.5 mH Ferrite Common Mode Choke, Max SRF:440Hz, 2A Idc, 160mΩ Rdc 250 V ac, CMV
  • RS Stock No. 288-137
  • Mfr. Part No. CMV20
Each
MYR26.72
RS PRO 1.2kΩ Carbon Film Resistor 1W ±5%
  • RS Stock No. 707-8678
Each (In a Pack of 10)
MYR0.593
Vishay, IHLP, EK Shielded Wire-wound SMD Inductor with a Metal Composite Core, 820 pH ±20% Shielded 9.3A Idc
  • RS Stock No. 564-990
  • Mfr. Part No. IHLP2020CZEKR82M01
Each (On a Reel of 2500)
MYR2.142
RS PRO 4.7μF Electrolytic Tantalum Electrolytic Capacitor 50V dc
  • RS Stock No. 181-4735
Each (In a Pack of 5)
MYR7.72
Broadcom 5V dc Optical Encoder Hollow Shaft
  • RS Stock No. 796-7852
  • Mfr. Part No. HEDS-5600#A06
Each
MYR287.85
Siretta ECHO1A/0.2M/IPEX/S/S/11 PCB Multiband Antenna with IPEX Connector, 2G (GSM/GPRS), 3G (UTMS), 4G, 4G (LTE
  • RS Stock No. 124-8687
  • Mfr. Part No. ECHO1A/0.2M/IPEX/S/S/11
Each
MYR34.15
TDK Openable Ferrite Clamp, 20.5 Dia. x 36mm, For Audio Equipment, Copiers, Digital Telephones, Electronic Musical
  • RS Stock No. 916-4320
  • Mfr. Part No. ZCAT2132-1130-BK
Each (In a Pack of 5)
MYR8.682
RS PRO 28mm Black Potentiometer Knob for 6.4mm Shaft Splined
  • RS Stock No. 498-823
Each
MYR35.05
Vishay 64Y Series 19 (Electrical), 22 (Mechanical)-Turn Through Hole Trimmer Resistor with Pin Terminations, 1kΩ ±10%
  • RS Stock No. 154-2397
  • Mfr. Part No. M64Y102KB40
Each
MYR16.28
RS PRO 100μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole
  • RS Stock No. 711-1602
Each (In a Pack of 25)
MYR1.378
TDK Openable Ferrite Sleeve, 36 Dia x 32mm, For Suppression Components, Apertures: 1, Diameter 11mm
  • RS Stock No. 774-0645
  • Mfr. Part No. ZCAT2132-1130
Each
MYR11.30
EPCOS B32022 Polypropylene Film Capacitor, 300V ac, ±20%, 22nF, Through Hole
  • RS Stock No. 466-497P
  • Mfr. Part No. B32022A3223M000
Each (Supplied in a Bag)
MYR3.619
EPCOS, B84112G 2A 250 V ac/dc 50 → 60Hz, Chassis Mount EMC Filter, Lug, Tab Connector, Single Phase
  • RS Stock No. 124-5291
  • Mfr. Part No. B84112G0000M020
Each
MYR144.00
TDK 100nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 921-4481
  • Mfr. Part No. CGA3E2X7R1H104K080AA
Each (On a Reel of 4000)
MYR0.074
EPCOS B3293 Metallised Polyester Film Capacitor, 305V ac, ±20%, 470nF, Through Hole
  • RS Stock No. 874-1425
  • Mfr. Part No. B32932A3474M000
Each (In a Pack of 5)
MYR5.226
RS PRO 16mm Silver Potentiometer Knob for 6.4mm Shaft Splined
  • RS Stock No. 498-918
Each
MYR22.44
Siretta OSCAR18/x/NF/S/S/22 Yagi Multiband Antenna with N Type Female Connector, 5G, 4G, 3G (UMTS), 2G (GSM/GPRS),
  • RS Stock No. 896-8327
  • Mfr. Part No. OSCAR18/x/NF/S/S/22
Each
MYR347.84
Wurth Elektronik Ferrite Ring Ferrite Core, For: General Electronics, 16 x 9 x 28mm
  • RS Stock No. 124-1537
  • Mfr. Part No. 7427005
Each (In a Pack of 10)
MYR6.317
KEMET 0.1F Supercapacitor -20 → +80% Tolerance, Supercap FM 5.5V dc, Through Hole
  • RS Stock No. 135-6160
  • Mfr. Part No. FM0H104ZF
Each (In a Pack of 2)
MYR13.09
RS PRO 85dB Panel Mount Continuous Internal Piezo Buzzer, 32 (Dia.) x 13.5mm, 3V dc Min, 12V dc Max
  • RS Stock No. 535-8275
Each
MYR10.87
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