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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 be: 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 component that can gather and hold a charge in a way that is similar to how a battery functions. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates 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

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 its 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 device 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, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

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

167247 Products showing for Passive Components

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2489 of 999+
Temporarily out of stock
KEMET C4AQ Film Capacitor, ±5 %, 8 μF 1.5 kV dc, PCB
  • RS Stock No. 174-4369
  • Mfr. Part No. C4AQSBW4800A3JJ
Subtotal (1 pack of 2 units)
£10.52(exc. VAT)
£5.26/unit
In Stock
Isabellenhutte BVE 0.3 mΩ, 5930 Manganin Resistor ±1 % 15 W - BVE-M-R0003-1.0
  • RS Stock No. 222-1464
  • Mfr. Part No. BVE-M-R0003-1.0
Subtotal (1 tape of 5 units)
£16.86(exc. VAT)
£3.372/unit
In Stock
Vishay WSL 40 mΩ, 2512 Metal Strip Surface Mount Resistor ±1 % 1 W - WSL2512R0400FEA
  • RS Stock No. 683-6577
  • Mfr. Part No. WSL2512R0400FEA
Subtotal (1 pack of 5 units)
£2.33(exc. VAT)
£0.466/unit
Temporarily out of stock
Wurth Elektronik Inductor Design Kit
  • RS Stock No. 484-680
  • Mfr. Part No. 744332
Subtotal (1 unit)
£133.70(exc. VAT)
£133.70/unit
Temporarily out of stock
Abracon 16.38 MHz Crystal Unit ±30 ppm Surface Mount 2-Pin 4.1 mm 11.4 mm 4.7mm
  • RS Stock No. 187-5757
  • Mfr. Part No. ABLS-16.384MHz-D-4-H-T
Subtotal (1 reel of 1000 units)
£180.00(exc. VAT)
£0.18/unit
In Stock
Wurth Elektronik WCAP-FTX2 Film Capacitor X2, ±10 %, 220 nF 275 V dc 275V ac, Through Hole
  • RS Stock No. 123-4088
  • Mfr. Part No. 890324025027
Subtotal (1 pack of 50 units)
£18.00(exc. VAT)
£0.36/unit
Temporarily out of stock
Bourns CR 49.9 Ω, 0402 Thick Film Surface Mount Resistor ±0.01 % 63 mW - CR0402-FX-49R9GLF
  • RS Stock No. 223-1672
  • Mfr. Part No. CR0402-FX-49R9GLF
Subtotal (1 reel of 10000 units)
£10.00(exc. VAT)
£0.001/unit
In Stock
Nichicon 470 μF Capacitor 10V dc, Surface Solder - UCM1A471MCL1GS Chip
  • RS Stock No. 222-9580P
  • Mfr. Part No. UCM1A471MCL1GS
Subtotal 25 units (supplied on a continuous strip)
£6.70(exc. VAT)
£0.268/unit
In Stock
Panasonic ERJ D2 10 mΩ, 0612 Thick Film Surface Mount Resistor ±1 % 1 W - ERJD2DFR010V
  • RS Stock No. 217-2709
  • Mfr. Part No. ERJD2DFR010V
Subtotal (1 tape of 5 units)
£2.58(exc. VAT)
£0.516/unit
In Stock
Euroquartz, 24MHz XO Oscillator, ±50 ppm LSTTL, HCMOS, 4-Pin Surface Mount XO53050UITA-24.000
  • RS Stock No. 173-5862
  • Mfr. Part No. XO53050UITA-24.000
Subtotal (1 reel of 1000 units)
£900.00(exc. VAT)
£0.90/unit
In Stock
Vishay MKP1848e Film Capacitor, ±10 %, 10 μF 1200 V dc 1200V ac, Through Hole
  • RS Stock No. 653-536
  • Mfr. Part No. MKP1848e61012KP2
Subtotal (1 unit)
£5.62(exc. VAT)
£5.62/unit
In Stock
Mobilemark HD4-2400-3C-BLK-36 WiFi Antenna Screw Mount with SMA Connector
  • RS Stock No. 133-6544
  • Mfr. Part No. HD4-2400-3C-BLK-36
Subtotal (1 unit)
£78.05(exc. VAT)
£78.05/unit
In Stock
Bourns 91 250 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 522-5147P
  • Mfr. Part No. 91A1A-B28-E22L
Subtotal 1 unit (supplied in a bag)
£6.25(exc. VAT)
£6.25/unit
In Stock
Murata 10 nF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 185-3382
  • Mfr. Part No. GCM033R71A103KA03D
Subtotal (1 reel of 1000 units)
£6.00(exc. VAT)
£0.006/unit
In Stock
Panasonic ERJ B1 560 Ω, 1020 Thick Film Resistor ±1 % 1 W - ERJB1AF561U
  • RS Stock No. 228-0544
  • Mfr. Part No. ERJB1AF561U
Subtotal (1 tape of 20 units)
£3.98(exc. VAT)
£0.199/unit
Temporarily out of stock
Murata, LQM, 0603 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, 47 μH Ferrite Core ±20 % 20 mA Idc
  • RS Stock No. 224-0580
  • Mfr. Part No. LQM18DH470M70L
Subtotal (1 tape of 50 units)
£5.35(exc. VAT)
£0.107/unit
Currently unavailable
TE Connectivity 6.81 kΩ Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 164-4608
  • Mfr. Part No. YR1B6K81CC
Subtotal (1 box of 1000 units)
£220.00(exc. VAT)
£0.22/unit
In Stock
Wurth Elektronik, WE-PD Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±25 % 1.9 A Idc
  • RS Stock No. 617-1423P
  • Mfr. Part No. 744778510
Subtotal 1 unit (supplied on a continuous strip)
£1.84(exc. VAT)
£1.84/unit
Last RS stock
Vishay 1 μF MnO2 Tantalum Capacitor 35V dc, Through Hole, 173D Series
  • RS Stock No. 830-9879
  • Mfr. Part No. 173D105X9035VE3
Subtotal (1 unit)
£0.32(exc. VAT)
£0.32/unit
In Stock
OKW 20 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Round Shaft, A3020069
  • RS Stock No. 283-2050
  • Mfr. Part No. A3020069
Subtotal (1 unit)
£4.60(exc. VAT)
£4.60/unit
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