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

161813 Products showing for Passive Components

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2148 of 999+
Temporarily out of stock
Wurth Elektronik, WE-LQSH, 2010 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 1.5 μH ±20 % 1.4 A Idc
  • RS Stock No. 135-4564
  • Mfr. Part No. 74405020015
Subtotal (1 reel of 2000 units)
SGD1,078.00(exc. GST)
SGD0.539/unit
In Stock
Vishay P11L 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, P11L1V0FLSY00502KA
  • RS Stock No. 743-5674
  • Mfr. Part No. P11L1V0FLSY00502KA
Subtotal (1 unit)
SGD26.35(exc. GST)
SGD26.35/unit
In Stock
KEMET 0.5 pF Multilayer Ceramic Capacitor, 250V dc, 0.25 pF, Surface
  • RS Stock No. 769-7106
  • Mfr. Part No. CBR06C508CAGAC
Subtotal (1 pack of 100 units)
SGD35.20(exc. GST)
SGD0.352/unit
In Stock
RS PRO 4.7 μF Capacitor 500V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 181-5536P
Subtotal 20 units (supplied in a bag)
SGD13.52(exc. GST)
SGD0.676/unit
Currently unavailable
Bourns 100 μH Ferrite Radial Inductor, Max SRF:3.7 MHz, Q:20, 910 mA Idc, 280 mΩ Rdc, RL622
  • RS Stock No. 172-8502
  • Mfr. Part No. RL622-101K-RC
Subtotal (1 bag of 100 units)
SGD84.30(exc. GST)
SGD0.843/unit
Stocked by manufacturer
OPKON 24V dc, 5 V dc 1000 ppr Pulse Incremental Encoder with a 6 mm Hollow Shaft Shaft, Hollow Shaft Mount, Radial Cable
  • RS Stock No. 749-406
  • Mfr. Part No. PRI-50-H-6-HLD-1000-ZZ-V3-2M5-R
Subtotal (1 unit)
SGD286.08(exc. GST)
SGD286.08/unit
In Stock
Vishay 157 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Servo Mount
  • RS Stock No. 173-552P
  • Mfr. Part No. 157S102MB9002
Subtotal 1 unit (supplied in a box)
SGD117.34(exc. GST)
SGD117.34/unit
In Stock
QT Quarztechnik 8 MHz Crystal ±10 ppm Surface Mount 4-Pin 1 mm 5.2 mm 3.4mm
  • RS Stock No. 815-0295P
  • Mfr. Part No. QTC5A8.00000FDT1I20R
Subtotal 5 units (supplied as a tape)
SGD6.94(exc. GST)
SGD1.388/unit
Temporarily out of stock
Microchip 25 MHz MEMS Oscillator, 4-Pin VFLGA 25 ppm DSC1525MA2A-25M00000T
  • RS Stock No. 827-512
  • Mfr. Part No. DSC1525MA2A-25M00000T
Subtotal (1 reel of 1000 units)
SGD1,459.00(exc. GST)
SGD1.459/unit
In Stock
Vishay MMB0207 470 Ω, 0207 Thin Film Surface Mount Resistor ±1 % 0.4 W - MMB02070C4700FB200
  • RS Stock No. 180-4177
  • Mfr. Part No. MMB02070C4700FB200
Subtotal (1 reel of 2000 units)
SGD244.00(exc. GST)
SGD0.122/unit
In Stock
Wurth Elektronik, 744, 8080 Shielded Inductor with a Iron Core, 22 μH Surface Mount ±20% 7.1 mA Idc
  • RS Stock No. 758-338P
  • Mfr. Part No. 74439358220
Subtotal 2 units (supplied on a continuous strip)
SGD12.83(exc. GST)
SGD6.415/unit
Last RS stock
TE Connectivity SM 22 Ω Wirewound Surface Mount Resistor ±5 % 2 W
  • RS Stock No. 647-5365P
  • Mfr. Part No. SMW222RJT
Subtotal 5 units (supplied on a continuous strip)
SGD4.40(exc. GST)
SGD0.88/unit
In Stock
Bourns CR 523 kΩ, 0402 Thick Film Resistor 1 % Surface 1 W - CR0402-FX-5232GLF
  • RS Stock No. 630-353P
  • Mfr. Part No. CR0402-FX-5232GLF
Subtotal 20 units (supplied on a continuous strip)
SGD0.14(exc. GST)
SGD0.007/unit
In Stock
Vishay 220 μF MnO2 Tantalum Capacitor 20V dc, Surface, 597D Series
  • RS Stock No. 871-7309
  • Mfr. Part No. 597D227X9020R2T
Subtotal (1 unit)
SGD19.98(exc. GST)
SGD19.98/unit
Temporarily out of stock
Bourns 12 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole
  • RS Stock No. 789-9513
  • Mfr. Part No. PEC11R-4020F-N0012
Subtotal (1 unit)
SGD2.59(exc. GST)
SGD2.59/unit
Temporarily out of stock
Yageo 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 242-3931
  • Mfr. Part No. CC0805KKX7R0BB104
Subtotal (1 reel of 3000 units)
SGD159.00(exc. GST)
SGD0.053/unit
Stocked by manufacturer
MOXA MAT-5G-PA-SM-2-06-3m Panel Multi-Band Antenna with SMA Connector, 617 MHz, 2690 MHz, 2G (GSM/GPRS), 3G (UTMS), 4G
  • RS Stock No. 112-014
  • Mfr. Part No. MAT-5G-PA-SM-2-06-3m
Subtotal (1 unit)
SGD955.73(exc. GST)
SGD955.73/unit
In Stock
Vishay 10 μF MnO2 Tantalum Capacitor 35V dc, Surface, TR3 Series
  • RS Stock No. 173-1388
  • Mfr. Part No. TR3C106K035C0450
Subtotal (1 reel of 500 units)
SGD510.00(exc. GST)
SGD1.02/unit
Currently unavailable
Bourns, GDT35 420 V 20 kA, Surface 3 Electrode Gas Discharge Tube, 3 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 264-5539
  • Mfr. Part No. GDT35-42-S1-RP
Subtotal (1 tape of 5 units)
SGD11.24(exc. GST)
SGD2.248/unit
In Stock
Wurth Elektronik, 8MHz SPXO Crystal Oscillator, ±25 ppm HCMOS, 4-Pin SMT 830208220001
  • RS Stock No. 276-6724
  • Mfr. Part No. 830208220001
Subtotal (1 pack of 5 units)
SGD19.75(exc. GST)
SGD3.95/unit
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