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

163659 Products showing for Passive Components

Sort By
2029 of 999+
In Stock
TDK 0.22 F Capacitor 40V dc, Screw
  • RS Stock No. 773-4321
  • Mfr. Part No. B41560A7220M600
Subtotal (1 unit)
SGD170.52(exc. GST)
SGD170.52/unit
In Stock
Yageo AC 2.1 kΩ, 1206 Thick Film Resistor ±1 % 0.25 W - AC1206FR-072K1L
  • RS Stock No. 197-8292P
  • Mfr. Part No. AC1206FR-072K1L
Subtotal (100 units, supplied on a continuous strip)
SGD2.60(exc. GST)
SGD0.026/unit
In Stock
Vishay 10 nF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 272-7968P
  • Mfr. Part No. VJ1210A103FXAAT
Subtotal (5 units, supplied on a continuous strip)
SGD8.75(exc. GST)
SGD1.75/unit
Temporarily out of stock
Wurth Elektronik, 12.288MHz SPXO Crystal Oscillator, ±25 ppm HCMOS, 4-Pin SMT 830208220101
  • RS Stock No. 276-6725
  • Mfr. Part No. 830208220101
Subtotal (3000 units, on reels of 3000)
SGD11,502.00(exc. GST)
SGD3.834/unit
In Stock
Panasonic 390 μF Capacitor 35V dc, Surface Solder 500
  • RS Stock No. 568-519P
  • Mfr. Part No. EEEFPV391UAP
Subtotal (5 units, supplied as a tape)
SGD8.21(exc. GST)
SGD1.642/unit
In Stock
KEMET Ferrite Flat Cable Ferrite, 16 max. wires, Solid Core 1.5 mm 23.5 mm
  • RS Stock No. 169-6768
  • Mfr. Part No. ESD-FPL-7
Subtotal (90 units, in boxes of 90)
SGD100.35(exc. GST)
SGD1.115/unit
Currently unavailable
KEMET, MPX, 0520 Shielded Wirewound Surface Mount Inductor with a Metal Composite Core, 15 μH ±20 % 2.5 A Idc
  • RS Stock No. 210-2262P
  • Mfr. Part No. MPX1D0530L150
Subtotal (5 units, supplied on a continuous strip)
SGD8.84(exc. GST)
SGD1.768/unit
Temporarily out of stock
Qnity Laird, MGV 1207 Shielded Surface Mount Inductor 10 μH Surface Mount Power Inductors 20 % 10 A Idc
  • RS Stock No. 766-992
  • Mfr. Part No. MGV1207100M-10
Subtotal (1 unit, on tapes of 1)
SGD3.33(exc. GST)
SGD3.33/tape
In Stock
Wurth Elektronik, WE-CBF, 0805 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, Multilayer 3 A Idc
  • RS Stock No. 124-1863P
  • Mfr. Part No. 742792023
Subtotal (50 units, supplied on a continuous strip)
SGD13.35(exc. GST)
SGD0.267/unit
Temporarily out of stock
Murata, LQW, 0402 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 6.8 nH ±2 % 700 mA Idc Q:25
  • RS Stock No. 167-4888
  • Mfr. Part No. LQW15AN6N8G00D
Subtotal (10000 units, on reels of 10000)
SGD740.00(exc. GST)
SGD0.074/unit
In Stock
RS PRO 8 Ω 0.1 W Miniature Speaker 31.8 mm Dia., 5.5 mm Lead Length 15 mm
  • RS Stock No. 767-5377
Subtotal (1 unit)
SGD3.56(exc. GST)
SGD3.56/unit
Temporarily out of stock
Vishay CRCW 20 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRCW060320R0FKEAHP
  • RS Stock No. 181-8083
  • Mfr. Part No. CRCW060320R0FKEAHP
Subtotal (1000 units, on reels of 1000)
SGD37.00(exc. GST)
SGD0.037/unit
Stocked by manufacturer
Rextron Antenna Magnetic Base Magnetic Base ANT-BAS1
  • RS Stock No. 708-046
  • Mfr. Part No. ANT-BAS1
Subtotal (1 unit)
SGD35.45(exc. GST)
SGD35.45/unit
In Stock
Panasonic ECWF(A) Film Capacitor, ±10 %, 100 nF 450 V dc, Through Hole
  • RS Stock No. 923-0247
  • Mfr. Part No. ECWF2W104KAQ
Subtotal (500 units, in bags of 500)
SGD213.00(exc. GST)
SGD0.426/unit
Temporarily out of stock
Panasonic ERJPC3 187 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B1873V
  • RS Stock No. 789-402
  • Mfr. Part No. ERJPC3B1873V
Subtotal (10 units, on tapes of 10)
SGD0.82(exc. GST)
SGD0.082/unit
Currently unavailable
TE Connectivity RN73 12.4 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RN73C2A12K4B
  • RS Stock No. 163-8794
  • Mfr. Part No. RN73C2A12K4B
Subtotal (1000 units, on reels of 1000)
SGD562.00(exc. GST)
SGD0.562/unit
In Stock
RS PRO 680 Ω Carbon Film Resistor 0.25 W 5 %
  • RS Stock No. 707-7656
Subtotal (10 units, in packs of 10)
SGD1.53(exc. GST)
SGD0.153/unit
Currently unavailable
500 Ω, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Vishay, 64Y
  • RS Stock No. 169-3100
  • Mfr. Part No. M64Y501KB40
Subtotal (200 units, in boxes of 200)
SGD601.80(exc. GST)
SGD3.009/unit
In Stock
Yageo 27 Ω Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-27R
  • RS Stock No. 199-7919
  • Mfr. Part No. MFR-25FTE52-27R
Subtotal (100 units, on tapes of 100)
SGD3.60(exc. GST)
SGD0.036/unit
In Stock
Arcol Ohmite HS50 2K5 F, 2.5 kΩ 50 W Aluminium Chassis Mount Resistor ±1 %
  • RS Stock No. 162-3500
  • Mfr. Part No. HS50 2K5 F
Subtotal (1 unit)
SGD9.00(exc. GST)
SGD9.00/unit
1
2029
8183
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links