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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

169762 Products showing for Passive Components

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2426 of 999+
Temporarily out of stock
Yageo RC_L 200 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - RC0402FR-07200KL
  • RS Stock No. 198-7689
  • Mfr. Part No. RC0402FR-07200KL
Subtotal (1 reel of 10000 units)
£30.00(exc. VAT)
£0.003/unit
Currently unavailable
Panasonic 270 μF Polymer Capacitor 16V dc, Through Hole - 16SEPG270M
  • RS Stock No. 144-6589
  • Mfr. Part No. 16SEPG270M
Subtotal (1 bag of 500 units)
£267.00(exc. VAT)
£0.534/unit
In Stock
Vishay MKP 339 Film Capacitor, ±20 %, 4.7 nF 630 V dc 310V ac, Through Hole
  • RS Stock No. 485-6627
  • Mfr. Part No. 2222 339 20472
Subtotal (1 pack of 10 units)
£9.23(exc. VAT)
£0.923/unit
In Stock
TDK 33 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 179-5528
  • Mfr. Part No. CGA4J2NP01H333J125AA
Subtotal (1 pack of 25 units)
£4.825(exc. VAT)
£0.193/unit
In Stock
TDK 10 μF Multilayer Ceramic Capacitor, 100V dc, ±20 %, Surface
  • RS Stock No. 242-7526P
  • Mfr. Part No. CGA9N3X7S2A106M230KB
Subtotal 1 unit (supplied on a continuous strip)
£1.66(exc. VAT)
£1.66/unit
In Stock
TDK, ACM, 2520 Surface Mount Common Mode Line Filter with a Ferrite Core, 400 mA Idc
  • RS Stock No. 547-4737
  • Mfr. Part No. ACM2520-301-2P-T
Subtotal (1 unit)
£0.53(exc. VAT)
£0.53/unit
Stocked by manufacturer
Grayhill 5V dc Optical Encoder with a 6.35 mm Flat Shaft, Panel Mount, PC Pin
  • RS Stock No. 878-0451
  • Mfr. Part No. 61C11-01-08-01
Subtotal (1 unit)
£31.53(exc. VAT)
£31.53/unit
Last RS stock
Vishay, IHLP-5050CE-01, 5050 Shielded Surface Mount Inductor with a Metal Composite Core, 4.7 μH ±20 % 10 A Idc
  • RS Stock No. 748-7316P
  • Mfr. Part No. IHLP5050CEER4R7M01
Subtotal 1 unit (supplied on a continuous strip)
£1.08(exc. VAT)
£1.08/unit
Last RS stock
Vishay CRCW 121 Ω, 0805 Thick Film Surface Mount Resistor ±1 % Surface 0.13 W - CRCW0805121RFKEA
  • RS Stock No. 679-0857
  • Mfr. Part No. CRCW0805121RFKEA
Subtotal (1 pack of 50 units)
£0.25(exc. VAT)
£0.005/unit
Temporarily out of stock
Panasonic ERJ6RQ 2.4 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - ERJ6RQF2R4V
  • RS Stock No. 168-9187
  • Mfr. Part No. ERJ6RQF2R4V
Subtotal (1 reel of 5000 units)
£350.00(exc. VAT)
£0.07/unit
Currently unavailable
VPG Foil Resistors VSMP 350 Ω, 1206 Metal Foil Surface Mount Resistor ±0.01 % 0.33 W - Y1625350R000T9R
  • RS Stock No. 173-2904
  • Mfr. Part No. Y1625350R000T9R
Subtotal (1 tape of 50 units)
£940.95(exc. VAT)
£18.819/unit
Temporarily out of stock
Panasonic ECHU(X) 50 V dc 50V ac Film Capacitor, 10 nF, Surface
  • RS Stock No. 106-9849
  • Mfr. Part No. ECHU1H103JX5
Subtotal (1 reel of 3000 units)
£366.00(exc. VAT)
£0.122/unit
In Stock
Panasonic ERJ 2RK 12.7 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - ERJ2RKF12R7X
  • RS Stock No. 277-951
  • Mfr. Part No. ERJ2RKF12R7X
Subtotal (1 bag of 10 units)
£0.13(exc. VAT)
£0.013/unit
Temporarily out of stock
Wurth Elektronik 0.4 pF Multilayer Ceramic Capacitor, 50V dc, 0.05 pF, Surface
  • RS Stock No. 185-5793P
  • Mfr. Part No. 885392005002
Subtotal 500 units (supplied on a reel)
£48.50(exc. VAT)
£0.097/unit
Being discontinued
Nichicon 8.2 μF Capacitor 450V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 845-4626
  • Mfr. Part No. ULD2W8R2MPD
Subtotal (1 pack of 5 units)
£4.43(exc. VAT)
£0.886/unit
In Stock
KEMET 22 μF MnO2 Tantalum Capacitor 35V dc, Surface, T491 Series
  • RS Stock No. 801-5533P
  • Mfr. Part No. T491D226K035AT
Subtotal 5 units (supplied on a continuous strip)
£8.43(exc. VAT)
£1.686/unit
In Stock
CTi ISM868/B/SMA_90 Whip Omni-Directional Antenna with SMA Connector, ISM Band
  • RS Stock No. 205-3389
  • Mfr. Part No. ISM868/B/SMA_90
Subtotal (1 pack of 2 units)
£12.06(exc. VAT)
£6.03/unit
Temporarily out of stock
KOA RN73R 5.6 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - RN73R2ATTD5601B25
  • RS Stock No. 253-3301
  • Mfr. Part No. RN73R2ATTD5601B25
Subtotal (1 reel of 5000 units)
£200.00(exc. VAT)
£0.04/unit
Last RS stock
TE Connectivity 3520 680 Ω, 2512 Thick Film Surface Mount Resistor ±5 % Surface 1 W
  • RS Stock No. 224-0389P
  • Mfr. Part No. 3520680RJT
Subtotal 10 units (supplied on a continuous strip)
£0.33(exc. VAT)
£0.033/unit
Temporarily out of stock
Vishay CRCW 100 Ω, 2010 Thick Film Surface Mount Resistor ±1 % Surface 0.75 W - CRCW2010100RFKEF
  • RS Stock No. 679-2382
  • Mfr. Part No. CRCW2010100RFKEF
Subtotal (1 pack of 25 units)
£1.85(exc. VAT)
£0.074/unit
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