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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

169650 Products showing for Passive Components

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Last RS stock
TE Connectivity CPF 44.2 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B44R2E1
  • RS Stock No. 122-6432
  • Mfr. Part No. CPF0402B44R2E1
Subtotal (1 bag of 20 units)
£4.84(exc. VAT)
£0.242/unit
In Stock
Wurth Elektronik 2 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 10 A Idc, 6 mΩ Rdc, WE-CMBNC
  • RS Stock No. 816-4789P
  • Mfr. Part No. 7448031002
Subtotal 1 unit (supplied in a bag)
£9.43(exc. VAT)
£9.43/unit
Currently unavailable
TE Connectivity CPF 357 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B357RE1
  • RS Stock No. 123-1388
  • Mfr. Part No. CPF0805B357RE1
Subtotal (1 bag of 20 units)
£1.24(exc. VAT)
£0.062/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
In Stock
Bourns 330 Ω Thick Film Resistor 20 W 1 %
  • RS Stock No. 796-2475P
  • Mfr. Part No. PWR220T-20-3300F
Subtotal 1 unit (supplied in a tube)
£2.68(exc. VAT)
£2.68/unit
Last RS stock
TE Connectivity CPF 7.15 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B7K15E1
  • RS Stock No. 123-9866
  • Mfr. Part No. CPF0603B7K15E1
Subtotal (1 reel of 1000 units)
£61.00(exc. VAT)
£0.061/unit
In Stock
Yageo 100 nF Multilayer Ceramic Capacitor, 50V dc, -20 to 80 %, Surface
  • RS Stock No. 198-8182
  • Mfr. Part No. CC0805ZRY5V9BB104
Subtotal (1 tape of 250 units)
£4.00(exc. VAT)
£0.016/unit
In Stock
Bourns CR 0.1 Ω, 0805 Thick Film Resistor 5 % Surface 250 mW - CRM0805AJX-R100ELF
  • RS Stock No. 630-401
  • Mfr. Part No. CRM0805AJX-R100ELF
Subtotal (1 tape of 20 units)
£3.12(exc. VAT)
£0.156/unit
Currently unavailable
TE Connectivity 120 Ω Wirewound Resistor 7 W 5 %
  • RS Stock No. 206-0953P
  • Mfr. Part No. SBCHE6120RJ
Subtotal 5 units (supplied in a box)
£5.48(exc. VAT)
£1.096/unit
In Stock
Vishay CHA 50 Ω, 0402 Thin Film Surface Mount Resistor ±2 % Surface 0.3 W - CHA0402-50RGNTD
  • RS Stock No. 653-045
  • Mfr. Part No. CHA0402-50RGNTD
Subtotal (1 tape of 1 unit)
£2.33(exc. VAT)
£2.33/tape
Stocked by manufacturer
TE Connectivity SMA-A Series 220 Ω, 0204 Metal Film Precision Resistor 1% Surface 0.4 W - SMA-A0204FTDX220R
  • RS Stock No. 685-491
  • Mfr. Part No. SMA-A0204FTDX220R
Subtotal (1 reel of 9000 units)
£207.00(exc. VAT)
£0.023/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
Currently unavailable
Laird, Diameter 10 mm Ferrite Sleeve 32.77 mm 21.84 mm 22.88 mm, For EMI Suppression
  • RS Stock No. 888-3566
  • Mfr. Part No. HFA187102-0A2
Subtotal (1 pack of 10 units)
£7.59(exc. VAT)
£0.759/unit
Stocked by manufacturer
TE Connectivity Holsworthy RN73 26.7 kΩ, 0402 Thin Film Surface Mount Resistor 0.1 % Surface 0.06 W - 2176263-5
  • RS Stock No. 468-621
  • Mfr. Part No. 2176263-5
Subtotal (1 reel of 5000 units)
£1,755.00(exc. VAT)
£0.351/unit
In Stock
Murata, LQM, 0603 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, 15 μH Ferrite Core ±20 % 80 mA Idc
  • RS Stock No. 224-0583
  • Mfr. Part No. LQM18DN150M70L
Subtotal (1 tape of 50 units)
£4.90(exc. VAT)
£0.098/unit
Currently unavailable
TE Connectivity Neohm SMA-A 39 kΩ, 0207 Thin Film Surface Mount Resistor 0.1 % Surface 1 W - 3-2176316-2
  • RS Stock No. 476-080
  • Mfr. Part No. 3-2176316-2
Subtotal (1 reel of 2000 units)
£1,322.00(exc. VAT)
£0.661/unit
In Stock
Panasonic 100 μF Capacitor 35V dc, Surface Solder 900
  • RS Stock No. 773-4198P
  • Mfr. Part No. EEETQV101XAP
Subtotal 5 units (supplied on a continuous strip)
£4.21(exc. VAT)
£0.842/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
Temporarily out of stock
TE Connectivity NEOHM SMA-Q 10.2 Ω, 0204 Thin Film Surface Mount Resistor 1 % Surface 0.4 W - SMA-Q0204FTDX10R2
  • RS Stock No. 590-028
  • Mfr. Part No. SMA-Q0204FTDX10R2
Subtotal (1 reel of 3000 units)
£69.00(exc. VAT)
£0.023/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
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