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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

169695 Products showing for Passive Components

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Currently unavailable
TE Connectivity RN73 165 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RN73C2A165KB
  • RS Stock No. 162-0052
  • Mfr. Part No. RN73C2A165KB
Subtotal (1 reel of 1000 units)
£300.00(exc. VAT)
£0.30/unit
Last RS stock
TE Connectivity 3521 10 Ω, 2512 Thick Film Surface Mount Resistor ±1 % 2 W - 352110RFT
  • RS Stock No. 164-4256
  • Mfr. Part No. 352110RFT
Subtotal (1 reel of 4000 units)
£556.00(exc. VAT)
£0.139/unit
Currently unavailable
TE Connectivity CPF-A 200 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF-A-0402B200RE1
  • RS Stock No. 164-5930
  • Mfr. Part No. CPF-A-0402B200RE1
Subtotal (1 reel of 1000 units)
£66.00(exc. VAT)
£0.066/unit
In Stock
TE Connectivity CPF-A 1 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - CPF-A-0805B1K0E1
  • RS Stock No. 164-6057
  • Mfr. Part No. CPF-A-0805B1K0E1
Subtotal (1 reel of 1000 units)
£117.00(exc. VAT)
£0.117/unit
Currently unavailable
TE Connectivity CPF-A 10 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF-A-0805B10RE1
  • RS Stock No. 164-6045
  • Mfr. Part No. CPF-A-0805B10RE1
Subtotal (1 reel of 1000 units)
£94.00(exc. VAT)
£0.094/unit
Temporarily out of stock
Panasonic ERJ 17.8 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - ERJ8ENF17R8V
  • RS Stock No. 111-8015
  • Mfr. Part No. ERJ8ENF17R8V
Subtotal (1 reel of 5000 units)
£105.00(exc. VAT)
£0.021/unit
In Stock
Panasonic ERA 100 kΩ, 1206 Metal Film Surface Mount Resistor ±0.1 % 0.25 W - ERA8AEB104V
  • RS Stock No. 110-1049
  • Mfr. Part No. ERA8AEB104V
Subtotal (1 reel of 5000 units)
£700.00(exc. VAT)
£0.14/unit
Currently unavailable
TE Connectivity CPF 1.43 mΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B1M43E1
  • RS Stock No. 123-4681
  • Mfr. Part No. CPF0805B1M43E1
Subtotal (1 reel of 1000 units)
£110.00(exc. VAT)
£0.11/unit
Temporarily out of stock
Vishay 47 μF MnO2 Tantalum Capacitor 16V dc, Surface, TR3 Series
  • RS Stock No. 684-5275P
  • Mfr. Part No. TR3D476K016C0200
Subtotal 5 units (supplied on a continuous strip)
£7.10(exc. VAT)
£1.42/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
Temporarily out of stock
Panasonic ERJ2RK 1500 Ω, 0402 Thick Film Precision Thick Film Fixed Resistor ±1 % Surface 0.1 W - ERJ2RKF1500X
  • RS Stock No. 763-849
  • Mfr. Part No. ERJ2RKF1500X
Subtotal (1 pack of 10 units)
£0.13(exc. VAT)
£0.013/unit
In Stock
Panasonic ERA 6.8 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - ERA2AEB682X
  • RS Stock No. 567-011
  • Mfr. Part No. ERA2AEB682X
Subtotal (1 pack of 5 units)
£0.57(exc. VAT)
£0.114/unit
In Stock
Panasonic ERA 5.1 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - ERA3AEB512V
  • RS Stock No. 782-687P
  • Mfr. Part No. ERA3AEB512V
Subtotal 10 units (supplied on a continuous strip)
£0.34(exc. VAT)
£0.034/unit
Temporarily out of stock
TE Connectivity NEOHM SMA-Q 105 Ω, 0207 Thin Film Surface Mount Resistor 0.1 % Surface 1 W - SMA-Q0207BTCT105R
  • RS Stock No. 590-393
  • Mfr. Part No. SMA-Q0207BTCT105R
Subtotal (1 reel of 2000 units)
£570.00(exc. VAT)
£0.285/unit
Last RS stock
Murata Variable Trimmer Capacitor 45 pF 90 pF
  • RS Stock No. 185-7569
  • Mfr. Part No. LXRW0YV900-053
Subtotal (1 pack of 10 units)
£1.72(exc. VAT)
£0.172/unit
Currently unavailable
Kamaya RMC 1.2 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - RMC1/10K122FTP
  • RS Stock No. 117-919
  • Mfr. Part No. RMC1/10K122FTP
Subtotal (1 pack of 100 units)
£0.50(exc. VAT)
£0.005/unit
In Stock
Bourns, SRR1210, 1210 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 μH ±20 % 2.5 A Idc Q:16
  • RS Stock No. 763-3528
  • Mfr. Part No. SRR1210-101M
Subtotal (1 bag of 10 units)
£7.42(exc. VAT)
£0.742/unit
In Stock
Murata Power Solutions, 6000B, 2720 Unshielded Wirewound Surface Mount Inductor 680 μH ±15 % 3 A Idc
  • RS Stock No. 749-6427
  • Mfr. Part No. 60B684C
Subtotal (1 unit)
£2.26(exc. VAT)
£2.26/unit
Currently unavailable
Murata, LQH, 1515 Shielded Surface Mount Inductor with a Ferrite Core, 15 μH ±20 % 610 mA Idc
  • RS Stock No. 747-4855
  • Mfr. Part No. LQH44PN150MJ0L
Subtotal (1 bag of 10 units)
£3.34(exc. VAT)
£0.334/unit
In Stock
Wurth Elektronik, WE-LHMI, 7030 Shielded Multilayer Surface Mount Inductor with a Composite Iron Powder Core, 22 μH ±20
  • RS Stock No. 756-8544
  • Mfr. Part No. 74437346220
Subtotal (1 unit)
£1.85(exc. VAT)
£1.85/unit
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