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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

169421 Products showing for Passive Components

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2354 of 999+
In Stock
Vishay MCT 68 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.12 W - MCT06030C6802FP500
  • RS Stock No. 188-6100
  • Mfr. Part No. MCT06030C6802FP500
Subtotal (1 tape of 100 units)
£1.50(exc. VAT)
£0.015/unit
In Stock
Bourns, SDR1005, 1005 Unshielded Wirewound Surface Mount Inductor with a Ferrite DR Core, 33 μH ±10 % 1.8 A Idc Q:29
  • RS Stock No. 729-6514P
  • Mfr. Part No. SDR1005-330KL
Subtotal 5 units (supplied on a continuous strip)
£2.48(exc. VAT)
£0.496/unit
Last RS stock
Vishay P10 50 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, P10XXAI503KB30
  • RS Stock No. 170-8638
  • Mfr. Part No. P10XXAI503KB30
Subtotal (1 box of 100 units)
£881.00(exc. VAT)
£8.81/unit
In Stock
RS PRO 4700 μF Capacitor 16V dc, Axial, Through Hole Axial
  • RS Stock No. 170-1145
Subtotal (1 bag of 100 units)
£134.90(exc. VAT)
£1.349/unit
Currently unavailable
Murata 40 MHz Crystal Unit ±30 ppm SMT 4-Pin 0.65 mm 1.6 mm 2mm
  • RS Stock No. 250-7795
  • Mfr. Part No. XRCGE40M000F3A1BR0
Subtotal (1 reel of 3000 units)
£336.00(exc. VAT)
£0.112/unit
Temporarily out of stock
Wurth Elektronik 3.9 mH 8 A Common Mode Choke 31 mΩ 760V ac
  • RS Stock No. 172-5435
  • Mfr. Part No. 744830039080
Subtotal (1 tray of 12 units)
£125.64(exc. VAT)
£10.47/unit
Temporarily out of stock
KEMET PHE844 Film Capacitor X1, ±20 %, 1 μF 1 kV dc 440V ac, Through Hole
  • RS Stock No. 164-9916
  • Mfr. Part No. PHE844RR7100MR06L2
Subtotal (1 unit)
£5.67(exc. VAT)
£5.67/unit
Currently unavailable
500 Ω, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Vishay, 64W
  • RS Stock No. 169-3075
  • Mfr. Part No. M64W501KB40
Subtotal (1 box of 200 units)
£310.00(exc. VAT)
£1.55/unit
Temporarily out of stock
50 Ω STMicroelectronics Flip-Chip Balun Transformer
  • RS Stock No. 168-8916
  • Mfr. Part No. BAL-NRF02D3
Subtotal (1 reel of 5000 units)
£830.00(exc. VAT)
£0.166/unit
In Stock
TE Connectivity HSA2547RJ, 47 Ω 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 164-3049
  • Mfr. Part No. HSA2547RJ
Subtotal (1 box of 100 units)
£223.30(exc. VAT)
£2.233/unit
In Stock
Bourns, SRN4012T, 4012 Shielded Power Inductor with a Ferrite Core, 10 μH Semi Shielded ±20 % 1.1 A Idc Q:10
  • RS Stock No. 466-226
  • Mfr. Part No. SRN4012T-100M
Subtotal (1 bag of 2 units)
£0.41(exc. VAT)
£0.205/unit
Last RS stock
Vishay MCT 20 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - MCT06030D2002BP500
  • RS Stock No. 188-5916
  • Mfr. Part No. MCT06030D2002BP500
Subtotal (1 tape of 25 units)
£0.70(exc. VAT)
£0.028/unit
Temporarily out of stock
TE Connectivity HSC15022RJ, 22 Ω 150 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 720-5439
  • Mfr. Part No. HSC15022RJ
Subtotal (1 unit)
£15.76(exc. VAT)
£15.76/unit
In Stock
2 mΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Nidec Components, CT-94
  • RS Stock No. 244-3658
  • Mfr. Part No. CT-94EW501
Subtotal (1 pack of 2 units)
£2.90(exc. VAT)
£1.45/unit
In Stock
500 Ω, Through Hole Trimmer Potentiometer, Pin 0.25 W Top Adjust Vishay, T63
  • RS Stock No. 374-7027P
  • Mfr. Part No. T63YB501KT20
Subtotal 1 unit (supplied in a tube)
£3.53(exc. VAT)
£3.53/unit
Temporarily out of stock
Arcol Ohmite HS100 47R J, 47 Ω 100 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 166-3852
  • Mfr. Part No. HS100 47R J
Subtotal (1 box of 45 units)
£312.66(exc. VAT)
£6.948/unit
Temporarily out of stock
KEMET C87 Film Capacitor, ±5 %, 8 μF 450V ac, Chassis Mount
  • RS Stock No. 173-1909
  • Mfr. Part No. C878BF34800SA0J
Subtotal (1 bag of 115 units)
£530.15(exc. VAT)
£4.61/unit
In Stock
Arcol Ohmite 47.5 kΩ Metal Film Resistor 0.25 W 0.1 % MRA020747K5BTA015
  • RS Stock No. 487-7860P
  • Mfr. Part No. MRA020747K5BTA015
Subtotal 5 units (supplied as a tape)
£2.91(exc. VAT)
£0.582/unit
Currently unavailable
TE Connectivity 3503 64.9 Ω, 1206 Thin Film Surface Mount Resistor ±1 % Surface 2 W - 3503G2B64R9FTDF
  • RS Stock No. 252-7634
  • Mfr. Part No. 3503G2B64R9FTDF
Subtotal (1 reel of 1000 units)
£371.00(exc. VAT)
£0.371/unit
In Stock
Abracon 25 MHz Crystal Unit ±20 ppm Surface Mount 4-Pin 1 mm 3.2 mm 2.5mm
  • RS Stock No. 171-2791
  • Mfr. Part No. ABM8G-25.000MHZ-18-D2Y-T
Subtotal (1 pack of 5 units)
£1.71(exc. VAT)
£0.342/unit
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