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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

168595 Products showing for Passive Components

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RS PRO 80 dB Panel Mount Fast Pulse Internal 33 mm Piezo Buzzer Component 6 V dc Min 28V dc Max
  • RS Stock No. 535-8360
Subtotal (1 unit)
£11.04(exc. VAT)
£11.04/unit
In Stock
Panasonic 47 μF Capacitor 63V dc, Radial, Through Hole - ECA1JHG470 Radial Lead
  • RS Stock No. 365-4357
  • Mfr. Part No. ECA1JHG470
Subtotal (1 pack of 5 units)
£1.27(exc. VAT)
£0.254/unit
In Stock
Vishay CRCW 4.7 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.125 W - CRCW08054K70FKEA
  • RS Stock No. 679-1496
  • Mfr. Part No. CRCW08054K70FKEA
Subtotal (1 pack of 50 units)
£0.95(exc. VAT)
£0.019/unit
In Stock
Littelfuse, LA Varistor Metal Oxide Varistor 900 pF 100 A, Clamping 2700 V, Varistor 430 V, Disc
  • RS Stock No. 543-5142
  • Mfr. Part No. V275LA40AP
Subtotal (1 pack of 5 units)
£3.19(exc. VAT)
£0.638/unit
In Stock
Welwyn 39 Ω Wirewound Resistor 3 W 5 %
  • RS Stock No. 139-3445
  • Mfr. Part No. W21-39RJI
Subtotal (1 bag of 5 units)
£5.11(exc. VAT)
£1.022/unit
In Stock
RS PRO MRA440 Film Capacitor, ±10 %, 4 μF 440V ac, Screw
  • RS Stock No. 196-4652
Subtotal (1 unit)
£14.49(exc. VAT)
£14.49/unit
Being discontinued
Nichicon 47 μF Capacitor 400V dc, Radial, Through Hole - UCS2G470MHD6 Radial Lead
  • RS Stock No. 222-9588
  • Mfr. Part No. UCS2G470MHD6
Subtotal (1 pack of 5 units)
£8.40(exc. VAT)
£1.68/unit
In Stock
TE Connectivity 1 mΩ Carbon Film Resistor 0.33 W 5 % CFR25J1M0
  • RS Stock No. 131-615
  • Mfr. Part No. CFR25J1M0
Subtotal (1 pack of 10 units)
£0.62(exc. VAT)
£0.062/unit
In Stock
RS PRO 81 dB Panel Mount Intermittent Internal 16 mm Piezo Buzzer Component 60 mm 3 V dc Min 28V dc Max
  • RS Stock No. 535-8310
Subtotal (1 unit)
£5.60(exc. VAT)
£5.60/unit
In Stock
Arcol HS50 3K3 J, 3.3 kΩ 50 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 252-2861
  • Mfr. Part No. HS50 3K3 J
Subtotal (1 unit)
£5.62(exc. VAT)
£5.62/unit
In Stock
RS PRO 11 mm Knob Diameter Black Potentiometer Knob Cap for 11 mm Shaft Circular
  • RS Stock No. 463-8536
Subtotal (1 pack of 5 units)
£7.90(exc. VAT)
£1.58/unit
In Stock
Arcol HS25 1R J, 1 Ω 25 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 157-522
  • Mfr. Part No. HS25 1R J
Subtotal (1 unit)
£5.43(exc. VAT)
£5.43/unit
Last RS stock
Taiyo Yuden 1 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 103-4110
  • Mfr. Part No. UMK107AB7105KA-T
Subtotal (1 pack of 100 units)
£3.80(exc. VAT)
£0.038/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 113-8707P
  • Mfr. Part No. GRM21BR61H475KE51L
Subtotal 100 units (supplied on a continuous strip)
£5.20(exc. VAT)
£0.052/unit
In Stock
KEMET 100 μF Multilayer Ceramic Capacitor, 10V dc, ±20 %, Surface
  • RS Stock No. 841-0809
  • Mfr. Part No. C1210C107M8PACTU
Subtotal (1 pack of 5 units)
£4.54(exc. VAT)
£0.908/unit
In Stock
RS PRO 28 mm Knob Diameter Black Potentiometer Knob for 6.4 mm Shaft Circular
  • RS Stock No. 498-823
Subtotal (1 unit)
£7.34(exc. VAT)
£7.34/unit
In Stock
Panasonic ECQE(F) Film Capacitor 1 μF 630V ac 630 V dc, Through Hole
  • RS Stock No. 622-4993
  • Mfr. Part No. ECQE6105JF
Subtotal (1 pack of 5 units)
£8.65(exc. VAT)
£1.73/unit
In Stock
KEMET C87 Film Capacitor, ±5 %, 30 μF 450V ac, Chassis Mount
  • RS Stock No. 377-8841
  • Mfr. Part No. C878BF35300SA0J
Subtotal (1 unit)
£14.68(exc. VAT)
£14.68/unit
Last RS stock
TE Connectivity 1 kΩ Wirewound Resistor 17 W 5 % SBCHE151K0J
  • RS Stock No. 206-1754P
  • Mfr. Part No. SBCHE151K0J
Subtotal 5 units (supplied in a box)
£9.51(exc. VAT)
£1.902/unit
In Stock
Schaffner, FN2080 3 A 250V ac/dc 400Hz, Chassis Mount EMI Filter, Fast-On 3 Phase
  • RS Stock No. 219-2971
  • Mfr. Part No. FN2080-3-06
Subtotal (1 unit)
£28.10(exc. VAT)
£28.10/unit
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