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

163920 Products showing for Passive Components

Sort By
1129 of 999+
In Stock
PUI Audio 0.8 W Miniature Speaker 20 mm Dia. 2.8 mm, 20mm
  • RS Stock No. 276-776P
  • Mfr. Part No. SMS-2008MS-R
Subtotal 1 unit (supplied on a continuous strip)
SGD8.14(exc. GST)
SGD8.14/unit
In Stock
Panasonic ERJPC3 6.49 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D6491V
  • RS Stock No. 789-976P
  • Mfr. Part No. ERJPC3D6491V
Subtotal 10 units (supplied on a continuous strip)
SGD0.73(exc. GST)
SGD0.073/unit
In Stock
TE Connectivity SMQ 2 Ω Wirewound Surface Mount Resistor 5 % Surface 1 W - SMQW12R0JT
  • RS Stock No. 286-7514P
  • Mfr. Part No. SMQW12R0JT
Subtotal 5 units (supplied on a continuous strip)
SGD4.53(exc. GST)
SGD0.906/unit
In Stock
Panasonic ERJ 887 kΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.25 W - ERJ8ENF8873V
  • RS Stock No. 282-493P
  • Mfr. Part No. ERJ8ENF8873V
Subtotal 10 units (supplied on a continuous strip)
SGD0.74(exc. GST)
SGD0.074/unit
In Stock
Wurth Elektronik Ferrite Bead 9.5 mm 9.5 mm (EMI Suppression Axial Ferrite Bead), 53 Ω impedance at 25 MHz, 93 Ω
  • RS Stock No. 332-462
  • Mfr. Part No. 74270091
Subtotal (1 bag of 2 units)
SGD7.48(exc. GST)
SGD3.74/unit
Currently unavailable
Vishay CRCW 180 Ω, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.2 W - CRCW0402180RFKEDHP
  • RS Stock No. 181-9048
  • Mfr. Part No. CRCW0402180RFKEDHP
Subtotal (1 reel of 10000 units)
SGD230.00(exc. GST)
SGD0.023/unit
In Stock
Bourns 256 ppr Pulse Incremental Mechanical Rotary Encoder with a 3.17 mm Plain Shaft (Indexed), Bracket Mount
  • RS Stock No. 737-7697
  • Mfr. Part No. EMS22Q51-D28-LT4
Subtotal (1 unit)
SGD80.66(exc. GST)
SGD80.66/unit
Currently unavailable
Vishay CRCW 560 Ω, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.2 W
  • RS Stock No. 812-1691P
  • Mfr. Part No. CRCW0402560RFKEDHP
Subtotal 100 units (supplied on a continuous strip)
SGD3.50(exc. GST)
SGD0.035/unit
Currently unavailable
Same Sky Omni-Directional, Pin 9.7 mm Condenser Microphone Component -42dB
  • RS Stock No. 259-6157
  • Mfr. Part No. CMA-6542PF
Subtotal (1 pack of 5 units)
SGD6.25(exc. GST)
SGD1.25/unit
In Stock
KEMET PHE450 Film Capacitor, ±5 %, 1 μF 400 V dc 180V ac, Through Hole
  • RS Stock No. 544-1327
  • Mfr. Part No. PHE450KF7100JR06L2
Subtotal (1 pack of 5 units)
SGD30.55(exc. GST)
SGD6.11/unit
In Stock
Siretta TANGO41/1M/SMAM/S/S/32 Stubby Multi-Band Antenna with SMA Connector, 698 MHz, 2.7 GHz, 2G (GSM/GPRS), 3G (UTMS),
  • RS Stock No. 140-8064
  • Mfr. Part No. TANGO41/1M/SMAM/S/S/32
Subtotal (1 bag of 1 unit)
SGD84.35(exc. GST)
SGD84.35/bag
In Stock
TDK, B84143A*R000 120 A 480V ac 50Hz, 60 Hz, Flange EMC Filter, Screw 3 Phase
  • RS Stock No. 213-8191
  • Mfr. Part No. B84143A0120R000
Subtotal (1 unit)
SGD972.71(exc. GST)
SGD972.71/unit
Last RS stock
Vishay 240 Ω Wirewound High Power Wirewound Resistor 4 W 5 % G22041432400JF1000
  • RS Stock No. 243-7558
  • Mfr. Part No. G22041432400JF1000
Subtotal (1 unit)
SGD2.52(exc. GST)
SGD2.52/unit
In Stock
Abracon 12 MHz Crystal ±30 ppm Surface Mount 4-Pin 1 mm 5 mm 3.2mm
  • RS Stock No. 226-0640
  • Mfr. Part No. FC5BACAGI12.0-T1
Subtotal (1 pack of 25 units)
SGD34.73(exc. GST)
SGD1.389/unit
Stocked by manufacturer
Littelfuse Metal Oxide Varistor 800 pF 200 A, Clamping 7.4 kV, Varistor 184.5 → 5170 V, Disc
  • RS Stock No. 878-3964
  • Mfr. Part No. V282BB60
Subtotal (1 pack of 4 units)
SGD2,079.47(exc. GST)
SGD519.868/unit
In Stock
Murata Power Solutions 10 mH Radial Inductor, Max SRF:0.62 MHz, Q:155, 63 mA Idc, 37.4 Ω Rdc, 2200R
  • RS Stock No. 629-9284
  • Mfr. Part No. 22R106C
Subtotal (1 pack of 5 units)
SGD8.50(exc. GST)
SGD1.70/unit
Currently unavailable
Abracon 25 MHz Crystal ±10 ppm DFN 4-Pin 600 μm 2.5 mm 2mm
  • RS Stock No. 171-0305
  • Mfr. Part No. ABM8W-25.0000MHZ-4-B1U-T3
Subtotal (1 pack of 10 units)
SGD6.57(exc. GST)
SGD0.657/unit
In Stock
Panasonic 4.7 μF Capacitor 100V dc, Radial - ECA2AM4R7 Radial Lead
  • RS Stock No. 228-7063
  • Mfr. Part No. ECA2AM4R7
Subtotal (1 pack of 5 units)
SGD1.38(exc. GST)
SGD0.276/unit
Currently unavailable
Vishay CMB 68 kΩ, 0207 Thin Film Surface Mount Resistor ±2 % 0.4 W - CMB02070X6802GB200
  • RS Stock No. 180-4224
  • Mfr. Part No. CMB02070X6802GB200
Subtotal (1 reel of 2000 units)
SGD698.00(exc. GST)
SGD0.349/unit
In Stock
TDK 2.2 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 915-5673P
  • Mfr. Part No. CGA3E1X7S1C225K080AC
Subtotal 50 units (supplied on a continuous strip)
SGD7.20(exc. GST)
SGD0.144/unit
1
1129
8196
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