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

167977 Products showing for Passive Components

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In Stock
ECS Inc International, 25MHz XO Oscillator, ±50 ppm HCMOS, 4-Pin Surface Mount
  • RS Stock No. 301-212P
  • Mfr. Part No. ECS-2018-250-BN
Subtotal 1 unit (supplied on a continuous strip)
£3.41(exc. VAT)
£3.41/unit
Last RS stock
TDK, NLV-PF, 1210 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 82 nH ±5 % 450 mA Idc Q:27
  • RS Stock No. 548-2671P
  • Mfr. Part No. NLV32T-082J-PF
Subtotal 25 units (supplied on a continuous strip)
£2.40(exc. VAT)
£0.096/unit
Temporarily out of stock
Panasonic, ETQP4M Shielded Wirewound Surface Mount Inductor with a Metal Composite Core, 15 μH ±20 % 4.2 A Idc
  • RS Stock No. 238-3595P
  • Mfr. Part No. ETQP4M150KFN
Subtotal 5 units (supplied on a continuous strip)
£2.96(exc. VAT)
£0.592/unit
Currently unavailable
KOA 56 kΩ Carbon Film Resistor 0.25 W 5 % CF1/4C563J
  • RS Stock No. 475-6870
  • Mfr. Part No. CF1/4C563J
Subtotal (1 bag of 100 units)
£5.50(exc. VAT)
£0.055/unit
Temporarily out of stock
Bourns, SRP1265A, 1265 Shielded Power Inductor with a Carbonyl Powder Core, 1.5 μH 20 % 27 A Idc Q:30
  • RS Stock No. 466-127
  • Mfr. Part No. SRP1265A-1R5M
Subtotal (1 bag of 2 units)
£1.71(exc. VAT)
£0.855/unit
In Stock
Wurth Elektronik, WE-XHMI Shielded Power Inductor 2.2 μH
  • RS Stock No. 484-737
  • Mfr. Part No. 74439358022
Subtotal (1 unit)
£3.58(exc. VAT)
£3.58/unit
In Stock
Wurth Elektronik, WE-TPC, 1919 Shielded Power Inductor with a Ferrite Core, 5.6 μH ±30 % 1.64 A Idc
  • RS Stock No. 486-260
  • Mfr. Part No. 744042005
Subtotal (1 unit)
£0.64(exc. VAT)
£0.64/unit
Temporarily out of stock
Nichicon 56 μF Surface Polymer Capacitor, 63V dc
  • RS Stock No. 187-2361P
  • Mfr. Part No. GYA1J560MCQ1GS
Subtotal 5 units (supplied on a continuous strip)
£5.05(exc. VAT)
£1.01/unit
Last RS stock
Nichicon 220 μF Surface Polymer Capacitor, 6.3V
  • RS Stock No. 243-7198P
  • Mfr. Part No. PCK0J221MCO1GS
Subtotal 10 units (supplied on a continuous strip)
£7.43(exc. VAT)
£0.743/unit
In Stock
Panasonic ERJ 20000 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.13 W - ERJ6ENF2002V
  • RS Stock No. 282-318
  • Mfr. Part No. ERJ6ENF2002V
Subtotal (1 bag of 10 units)
£0.20(exc. VAT)
£0.02/unit
Last RS stock
Durakool XV2 250R J, 250 Ω 40 W Wirewound High Power Resistor ±5 %
  • RS Stock No. 457-444
  • Mfr. Part No. XV2 250R J
Subtotal (1 unit)
£8.41(exc. VAT)
£8.41/unit
In Stock
KYOCERA AVX 22 μF Electrolytic Tantalum Capacitor 16V dc, Through Hole, Tap Series
  • RS Stock No. 134-9759
  • Mfr. Part No. TAP226M016CCS
Subtotal (1 bag of 10 units)
£6.15(exc. VAT)
£0.615/unit
Temporarily out of stock
KEMET 470 nF MnO2 Tantalum Capacitor 35V dc, Surface, T491 Series
  • RS Stock No. 170-0250
  • Mfr. Part No. T491A474K035AT
Subtotal (1 reel of 2000 units)
£248.00(exc. VAT)
£0.124/unit
In Stock
Vishay 82 kΩ Thin Film Resistor 0.6 W 1 % MRS25000C8202FCT00
  • RS Stock No. 683-4067
  • Mfr. Part No. MRS25000C8202FCT00
Subtotal (1 pack of 25 units)
£2.10(exc. VAT)
£0.084/unit
Temporarily out of stock
RS PRO 0.22 F Supercapacitor -20 → 80 % Tolerance 5.5V dc, PCB, Radial, Vertical
  • RS Stock No. 184-5037
Subtotal (1 tray of 4800 units)
£2,342.40(exc. VAT)
£0.488/unit
Temporarily out of stock
Arcol Ohmite HS25 5R6 J, 5.6 Ω 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 166-4075
  • Mfr. Part No. HS25 5R6 J
Subtotal (1 bag of 25 units)
£95.95(exc. VAT)
£3.838/unit
In Stock
Wurth Elektronik, WE-XHMI SMT, 5020 Shielded Surface Mount Inductor with a Polystyrene Core, 160 nH Shielded ±20 % 24.7
  • RS Stock No. 219-802
  • Mfr. Part No. 744393330016
Subtotal (1 tape of 10 units)
£11.10(exc. VAT)
£1.11/unit
In Stock
Wurth Elektronik, WE-LQ, 1812 Unshielded Surface Mount Inductor with a Polystyrene Core, 10 μH ±20 % 950 mA Idc Q:48
  • RS Stock No. 296-293
  • Mfr. Part No. 744045100
Subtotal (1 tape of 10 units)
£6.54(exc. VAT)
£0.654/unit
In Stock
Wurth Elektronik WE-WPCC Wireless Charging Coil Receiver 3 A, 14.3 μH
  • RS Stock No. 112-0097
  • Mfr. Part No. 760308103215
Subtotal (1 unit)
£6.49(exc. VAT)
£6.49/unit
In Stock
Welwyn 3.3 Ω Wirewound Resistor 10.5 W 5 % W23-3R3JI
  • RS Stock No. 144-2870
  • Mfr. Part No. W23-3R3JI
Subtotal (1 box of 50 units)
£107.65(exc. VAT)
£2.153/unit
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