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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

168462 Products showing for Passive Components

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8369 of 999+
In Stock
Wurth Elektronik, WE-DD Shielded Power Inductor with a Ferrite Core, 20 μH ±20 % 3.28 A Idc
  • RS Stock No. 484-370
  • Mfr. Part No. 744874100
Subtotal (1 unit)
£2.06(exc. VAT)
£2.06/unit
In Stock
Murata 0.2 pF Multilayer Ceramic Capacitor, 50V dc, 0.05 pF, Surface
  • RS Stock No. 185-1902P
  • Mfr. Part No. GRM0335C1HR20WA01D
Subtotal 1000 units (supplied on a reel)
£6.00(exc. VAT)
£0.006/unit
In Stock
Wurth Elektronik 4W620 Openable Flat Cable Ferrite, 1 max. wires, EMI Suppression 26.6 mm
  • RS Stock No. 332-345
  • Mfr. Part No. 74272571
Subtotal (1 bag of 2 units)
£8.05(exc. VAT)
£4.025/unit
In Stock
Wurth Elektronik 4W620 Flat Cable Ferrite Core, 1 max. wires, Ferrite Core 40 mm
  • RS Stock No. 332-577
  • Mfr. Part No. 74272141
Subtotal (1 tray of 50 units)
£63.60(exc. VAT)
£1.272/unit
In Stock
KEMET 47000 μF Capacitor 40V dc, Screw - ALS31A473KE040
  • RS Stock No. 172-6913
  • Mfr. Part No. ALS31A473KE040
Subtotal (1 box of 24 units)
£470.40(exc. VAT)
£19.60/unit
In Stock
Wurth Elektronik 4W620 Openable Flat Cable Ferrite, 1 max. wires, EMI Suppression 83.4 mm
  • RS Stock No. 332-331
  • Mfr. Part No. 7427256
Subtotal (1 tray of 5 units)
£93.93(exc. VAT)
£18.786/unit
Temporarily out of stock
KEMET Ferrite Flat Cable Ferrite, 20 max. wires, Solid Core 1.5 mm 27 mm
  • RS Stock No. 169-6766
  • Mfr. Part No. ESD-FPL-20-15
Subtotal (1 box of 800 units)
£824.00(exc. VAT)
£1.03/unit
In Stock
Abracon ARRKP7059-S915B Patch Multi-Band Antenna with MMCX Connector, 902 MHz, 928 MHz, UHF RFID
  • RS Stock No. 250-5280
  • Mfr. Part No. ARRKP7059-S915B
Subtotal (1 bag of 18 units)
£291.708(exc. VAT)
£16.206/unit
In Stock
Murata 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 169-3964
  • Mfr. Part No. GCM21BR72A104KA37L
Subtotal (1 reel of 3000 units)
£132.00(exc. VAT)
£0.044/unit
In Stock
Vishay CRCW 4.7 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRCW06034K70FKEAHP
  • RS Stock No. 181-7995
  • Mfr. Part No. CRCW06034K70FKEAHP
Subtotal (1 reel of 1000 units)
£20.00(exc. VAT)
£0.02/unit
In Stock
Wurth Elektronik 4W620 Flat Cable Ferrite Core, Ferrite Core 24 mm
  • RS Stock No. 332-280
  • Mfr. Part No. 74278009
Subtotal (1 tray of 50 units)
£71.65(exc. VAT)
£1.433/unit
In Stock
Wurth Elektronik 4W620 Flat Cable Ferrite Core, Ferrite Core 20 mm
  • RS Stock No. 332-292
  • Mfr. Part No. 7427805
Subtotal (1 tray of 50 units)
£71.65(exc. VAT)
£1.433/unit
Temporarily out of stock
Wurth Elektronik 4W620 Flat Cable Ferrite Core, 1 max. wires, Ferrite Core 62 mm
  • RS Stock No. 332-309
  • Mfr. Part No. 7427236
Subtotal (1 tray of 12 units)
£208.056(exc. VAT)
£17.338/unit
In Stock
Wurth Elektronik 4W620 Flat Cable Ferrite Core, Ferrite Core 27 mm
  • RS Stock No. 332-274
  • Mfr. Part No. 74278031
Subtotal (1 tray of 50 units)
£49.90(exc. VAT)
£0.998/unit
In Stock
Panasonic ECHU(X) 50 V dc 50V ac Film Capacitor, 1.5 nF, Surface
  • RS Stock No. 414-7226
  • Mfr. Part No. ECHU1H152GX5
Subtotal (1 pack of 10 units)
£1.96(exc. VAT)
£0.196/unit
In Stock
KEMET PHE850 Film Capacitor Y2, ±20 %, 3.3 nF 1.25 kV dc 300V ac, Through Hole
  • RS Stock No. 616-7890
  • Mfr. Part No. PHE850EA4330MA02R17
Subtotal (1 pack of 25 units)
£5.85(exc. VAT)
£0.234/unit
In Stock
KEMET PHE840 Film Capacitor, ±20 %, 47 nF 760 V dc 280V ac, Through Hole
  • RS Stock No. 616-7749
  • Mfr. Part No. PHE840MA5470MA02R17
Subtotal (1 pack of 10 units)
£2.73(exc. VAT)
£0.273/unit
In Stock
KEMET PHE850 Film Capacitor Y2, ±20 %, 220 nF 1.25 kV dc 300V ac, Through Hole
  • RS Stock No. 616-7979
  • Mfr. Part No. PHE850ED6220MD20R06L2
Subtotal (1 pack of 5 units)
£8.00(exc. VAT)
£1.60/unit
Currently unavailable
Panasonic ECWU(V16) Film Capacitor 250 V dc, 2.2 nF, Surface
  • RS Stock No. 622-5362
  • Mfr. Part No. ECWU2222V16
Subtotal (1 pack of 5 units)
£2.68(exc. VAT)
£0.536/unit
In Stock
Panasonic ECHU(X) 50 V dc 50V ac Film Capacitor, 33 nF, Surface
  • RS Stock No. 712-8530
  • Mfr. Part No. ECHU1H333JX5
Subtotal (1 pack of 10 units)
£2.50(exc. VAT)
£0.25/unit
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