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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

167859 Products showing for Passive Components

629 of 999+
Temporarily out of stock
Sollatek, SMC1 Surge Suppressor Unit 185V, 260 V Maximum Voltage Rating 4.5 kA Maximum Surge Current Type II
  • RS Stock No. 144-6525
  • Mfr. Part No. SMC1-MF-20A
Subtotal (1 unit)
£43.86(exc. VAT)
£43.86/unit
In Stock
Vishay, IHLP, EK Shielded Surface Mount Inductor with a Metal Composite Core, 470 pH ±20 % 15.4 A Idc
  • RS Stock No. 564-987
  • Mfr. Part No. IHLP2020CZEKR47M11
Subtotal (1 reel of 2500 units)
£920.00(exc. VAT)
£0.368/unit
In Stock
Welwyn 390 mΩ Wirewound Resistor 3 W 5 %
  • RS Stock No. 139-3488
  • Mfr. Part No. W21-R39JI
Subtotal (1 bag of 5 units)
£8.00(exc. VAT)
£1.60/unit
In Stock
Vishay PE30 220 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 162-2396
  • Mfr. Part No. PE30L0FR224KAB
Subtotal (1 box of 10 units)
£287.80(exc. VAT)
£28.78/unit
In Stock
Panasonic, LP Shielded Wirewound Surface Mount Inductor with a Magnetic Iron Alloy Core, 4.7 μH ±20 % 8.3 A Idc
  • RS Stock No. 548-897P
  • Mfr. Part No. ETQP4M4R7KVK
Subtotal 5 units (supplied on a continuous strip)
£3.00(exc. VAT)
£0.60/unit
Temporarily out of stock
Vishay 13 kΩ Thin Film Resistor 0.4 W 1 %
  • RS Stock No. 162-2849
  • Mfr. Part No. MBA02040C1302FC100
Subtotal (1 box of 1000 units)
£132.00(exc. VAT)
£0.132/unit
In Stock
Vishay 15 μF Tantalum Tantalum Capacitor 25V dc, Surface, T51 Series
  • RS Stock No. 250-7653P
  • Mfr. Part No. T51D156M025C0100
Subtotal 1 unit (supplied on a continuous strip)
£1.46(exc. VAT)
£1.46/unit
In Stock
KYOCERA AVX 2.2 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface
  • RS Stock No. 135-9032
  • Mfr. Part No. 08055A2R2CAT2A
Subtotal (1 bag of 100 units)
£3.90(exc. VAT)
£0.039/unit
Temporarily out of stock
Wurth Elektronik 10 μF Capacitor 16V dc, Surface Solder - 865250340003
  • RS Stock No. 163-6428
  • Mfr. Part No. 865250340003
Subtotal (1 reel of 2000 units)
£232.00(exc. VAT)
£0.116/unit
In Stock
Panasonic Precision Thick Film Chip Resistors 36000 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W
  • RS Stock No. 287-609P
  • Mfr. Part No. ERJ2RKF3602X
Subtotal 10 units (supplied on a continuous strip)
£0.13(exc. VAT)
£0.013/unit
In Stock
Panasonic ERJ 2RK 2.2 mΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W
  • RS Stock No. 277-745P
  • Mfr. Part No. ERJ2RKF3323X
Subtotal 10 units (supplied on a continuous strip)
£0.08(exc. VAT)
£0.008/unit
Temporarily out of stock
KOA RN73R 680 Ω, 1206 Metal Film Surface Mount Resistor ±0.1 % 0.25 W - RN73R2BTTD6800B25
  • RS Stock No. 253-3474
  • Mfr. Part No. RN73R2BTTD6800B25
Subtotal (1 reel of 5000 units)
£515.00(exc. VAT)
£0.103/unit
Temporarily out of stock
Microchip 24 MHz Oscillator, 4-Pin VLGA ±25 ppm ±25 ppm DSA6331JL2AB-024.0000VAO
  • RS Stock No. 631-252
  • Mfr. Part No. DSA6331JL2AB-024.0000VAO
Subtotal (1 box of 700 units)
£736.40(exc. VAT)
£1.052/unit
In Stock
IQD 10 MHz Crystal Unit ±30 ppm Surface Mount 2-Pin 4.3 mm 11.4 mm 4.9mm
  • RS Stock No. 148-5348P
  • Mfr. Part No. LFXTAL003166
Subtotal 50 units (supplied on a continuous strip)
£18.60(exc. VAT)
£0.372/unit
Currently unavailable
TE Connectivity 3503 5.49 kΩ, 1206 Thin Film Surface Mount Resistor ±1 % Surface 2 W - 3503G2B5K49FTDF
  • RS Stock No. 252-7630
  • Mfr. Part No. 3503G2B5K49FTDF
Subtotal (1 reel of 1000 units)
£374.00(exc. VAT)
£0.374/unit
Temporarily out of stock
Wurth Elektronik, WE-TPC, 8012 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 12 μH ±20 % 1.15 A Idc
  • RS Stock No. 163-4853
  • Mfr. Part No. 7440680120
Subtotal (1 reel of 550 units)
£504.90(exc. VAT)
£0.918/unit
In Stock
Panasonic 1000 μF Capacitor 35V dc, Radial, Through Hole - EEUFK1V102S Radial Lead
  • RS Stock No. 571-426
  • Mfr. Part No. EEUFK1V102S
Subtotal (1 pack of 5 units)
£10.95(exc. VAT)
£2.19/unit
In Stock
Abracon Square Omni-Directional GPS Antenna with IPEX Connector, BeiDou, GPS, Galileo, GLONASS
  • RS Stock No. 250-5189P
  • Mfr. Part No. AFAG4330-SG3
Subtotal 2 units (supplied in a bag)
£7.08(exc. VAT)
£3.54/unit
In Stock
Panasonic ERJ3B 100 mΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.25 W
  • RS Stock No. 277-808P
  • Mfr. Part No. ERJ3BWFR100V
Subtotal 10 units (supplied on a continuous strip)
£1.47(exc. VAT)
£0.147/unit
Temporarily out of stock
AVX 10 μF Surface Polymer Capacitor, 16V dc
  • RS Stock No. 249-0364
  • Mfr. Part No. TCJB106M016R0200E
Subtotal (1 reel of 2000 units)
£622.00(exc. VAT)
£0.311/unit
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