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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
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Rotary Encoders
Sounder, Buzzer & Microphone Components
Surge Protection Components
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169376 Products showing for Passive Components

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In Stock
Welwyn 56 Ω Wirewound Resistor 3 W 5 % W21-56RJI
  • RS Stock No. 139-3388
  • Mfr. Part No. W21-56RJI
Subtotal (1 bag of 5 units)
£4.97(exc. VAT)
£0.994/unit
In Stock
Vishay CRCW 51 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W
  • RS Stock No. 679-1538P
  • Mfr. Part No. CRCW080551R0FKEA
Subtotal 50 units (supplied on a continuous strip)
£0.95(exc. VAT)
£0.019/unit
Currently unavailable
TE Connectivity 5.6 kΩ Wirewound Wirewound Resistor 10 W 5 % EP10WSS5K6JBB
  • RS Stock No. 272-2451
  • Mfr. Part No. EP10WSS5K6JBB
Subtotal (1 unit)
£0.74(exc. VAT)
£0.74/unit
In Stock
Yageo 4.7 MΩ Metal Glaze Metal Film Resistor 1 W 1 % HHV1WSFT-73-4M7
  • RS Stock No. 199-5058
  • Mfr. Part No. HHV1WSFT-73-4M7
Subtotal (1 tape of 10 units)
£1.57(exc. VAT)
£0.157/unit
In Stock
Murata 33 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Through Hole Radial
  • RS Stock No. 133-5725
  • Mfr. Part No. RDER71H333K0M1H03A
Subtotal (1 pack of 25 units)
£5.28(exc. VAT)
£0.211/unit
Temporarily out of stock
KYOCERA AVX 100 nF Multilayer Ceramic Capacitor, 16V dc, ±5 %, Surface
  • RS Stock No. 135-3653
  • Mfr. Part No. 0603YC104JAT2A
Subtotal (1 reel of 4000 units)
£268.00(exc. VAT)
£0.067/unit
In Stock
Yageo 5.6 pF Multilayer Ceramic Capacitor, 50V dc, 0.1 pF, Surface
  • RS Stock No. 199-2120
  • Mfr. Part No. CC0402BRNPO9BN5R6
Subtotal (1 tape of 500 units)
£4.50(exc. VAT)
£0.009/unit
Last RS stock
TE Connectivity 3502 510 Ω, 2010 Thick Film Surface Mount Resistor ±1 % Surface 2 W
  • RS Stock No. 186-6735P
  • Mfr. Part No. 3502510RFT
Subtotal 10 units (supplied on a continuous strip)
£1.29(exc. VAT)
£0.129/unit
In Stock
Vishay NTC Thermistor, NTC Type 10 kΩ 15.7 mm 7.2 mm
  • RS Stock No. 179-3913
  • Mfr. Part No. NTCALUG01A103F161
Subtotal (1 bag of 10 units)
£37.70(exc. VAT)
£3.77/unit
In Stock
Murata 10 μF Multilayer Ceramic Capacitor, 16V dc, ±20 %, Surface
  • RS Stock No. 165-6476
  • Mfr. Part No. GRT188C81C106ME13D
Subtotal (1 pack of 25 units)
£3.78(exc. VAT)
£0.151/unit
Last RS stock
TDK, B88069X Surge Suppressor Unit 230V dc Maximum Voltage Rating 15 kA Maximum Surge Current 3 Pole Arrester
  • RS Stock No. 191-1579
  • Mfr. Part No. B88069X8910B502
Subtotal (1 unit)
£2.10(exc. VAT)
£2.10/unit
In Stock
Yageo RC_L 1 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W
  • RS Stock No. 199-5485P
  • Mfr. Part No. RC0603FR-071RL
Subtotal 100 units (supplied on a continuous strip)
£1.00(exc. VAT)
£0.01/unit
Temporarily out of stock
TE Connectivity 100 kΩ Metal Film Resistor 0.25 W 0.1 % H8100KBYA
  • RS Stock No. 701-8027
  • Mfr. Part No. H8100KBYA
Subtotal (1 pack of 5 units)
£6.90(exc. VAT)
£1.38/unit
In Stock
Vishay CRCW 3.3 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW08053K30FKEA
  • RS Stock No. 182-5272
  • Mfr. Part No. CRCW08053K30FKEA
Subtotal (1 reel of 1000 units)
£10.00(exc. VAT)
£0.01/unit
In Stock
Panasonic ERJ 49.9 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ2RKF49R9X
  • RS Stock No. 176-0842
  • Mfr. Part No. ERJ2RKF49R9X
Subtotal (1 reel of 1000 units)
£6.00(exc. VAT)
£0.006/unit
Temporarily out of stock
WJ Furse, ESP SL Surge Suppressor Unit 36.7V Maximum Voltage Rating 20 kA Maximum Surge Current Twisted Pair Surge
  • RS Stock No. 788-6725
  • Mfr. Part No. 7TCA085400R0070 ESP SL30L/4-20
Subtotal (1 unit)
£200.67(exc. VAT)
£200.67/unit
In Stock
Nichicon 2200 μF Capacitor 100V dc, Snap-in - LLS2A222MELA
  • RS Stock No. 846-7136
  • Mfr. Part No. LLS2A222MELA
Subtotal (1 unit)
£3.71(exc. VAT)
£3.71/unit
In Stock
Bourns CR 120 Ω, 1206 Thick Film Resistor 1 % Surface 250 mW - CR1206-FX-1200ELF
  • RS Stock No. 630-145
  • Mfr. Part No. CR1206-FX-1200ELF
Subtotal (1 tape of 20 units)
£0.26(exc. VAT)
£0.013/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 50V dc, 10 %, Surface
  • RS Stock No. 247-8164P
  • Mfr. Part No. GRM31CR71H475KA12L
Subtotal 10 units (supplied on a continuous strip)
£1.67(exc. VAT)
£0.167/unit
In Stock
TE Connectivity CJP300J100RJ, 100 Ω 300 W Wirewound Power Resistor 5 %
  • RS Stock No. 261-2373
  • Mfr. Part No. CJP300J100RJ
Subtotal (1 unit)
£35.14(exc. VAT)
£35.14/unit
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