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

154521 Products showing for Passive Components

7703 of 999+
Bourns CR0805 100kΩ, 0805 (2012M) Thick Film SMD Resistor ±5% 0.125W
  • RS Stock No. 161-6935
  • Mfr. Part No. CR0805-JW-104ELF
Each (On a Reel of 5000)
£0.003(exc. VAT)
Vishay CRCW 18Ω, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 678-8866P
  • Mfr. Part No. CRCW040218R0FKED
Each (Supplied on a Reel)
£0.026(exc. VAT)
Wurth Elektronik 20 Pulse Incremental Mechanical Rotary Encoder with a 6 mm, Through Hole
  • RS Stock No. 185-4446P
  • Mfr. Part No. 482020514001
Each (Supplied in a Tray)
£3.705(exc. VAT)
Masach Tech Tin Plated Steel Shielding Cage Seamless Cover, 32.9 x 24.4 x 4mm
  • RS Stock No. 234-8621
  • Mfr. Part No. MS323-30C
Each (In a Tray of 40)
£0.841(exc. VAT)
PUI Audio 70dB(A) SMD External Magnetic Transducer, 4 x 4 x 2mm, 2V Min, 4V Max
  • RS Stock No. 276-778
  • Mfr. Part No. SMT-0440-S-R
Each
£2.49(exc. VAT)
EPCOS B32672L Metallised Polypropylene Film Capacitor, 2 kV dc, 700 V ac, ±5%, 10nF, Through Hole
  • RS Stock No. 172-5621
  • Mfr. Part No. B32672L8103J000
Each (In a Bag of 1000)
£0.23(exc. VAT)
Yageo 8.25kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.0625W
  • RS Stock No. 198-7878
  • Mfr. Part No. RC0402FR-078K25L
Each (On a Reel of 10000)
£0.002(exc. VAT)
Wurth Power Inductor 15μH
  • RS Stock No. 487-112
  • Mfr. Part No. 74455115
Each
£1.75(exc. VAT)
Vishay 6.8μF MnO2 Tantalum Capacitor 40V dc, CTS13 Series
  • RS Stock No. 684-5017
  • Mfr. Part No. CTS13685X9040B2B
Each
£5.63(exc. VAT)
KEMET 10μF MnO2 Tantalum Capacitor 25V dc, T491 Series
  • RS Stock No. 170-0266
  • Mfr. Part No. T491D106K025AT
Each (On a Reel of 500)
£0.301(exc. VAT)
Vishay, IHLP, EK Shielded Wire-wound SMD Inductor with a Metal Composite Core, 8.2 μH ±20% Shielded 18A Idc
  • RS Stock No. 565-138
  • Mfr. Part No. IHLP6767GZEK8R2M01
Each (On a Reel of 250)
£1.682(exc. VAT)
Yageo 100pF MLCC, 50V dc V, ± 2% , SMD
  • RS Stock No. 200-6465
  • Mfr. Part No. CC0603GRNPO9BN101
Each (On a Tape of 200)
£0.022(exc. VAT)
Samsung Electro-Mechanics 100nF MLCC, 50V dc V, SMD
  • RS Stock No. 257-5919P
  • Mfr. Part No. CL10B104KB8WPNC
Each (Supplied on a Reel)
£0.022(exc. VAT)
Wurth Elektronik 1μF Multilayer Ceramic Capacitor MLCC, 630V dc V, SMD
  • RS Stock No. 261-0080P
  • Mfr. Part No. 885342214001
Each (Supplied on a Reel)
£3.21(exc. VAT)
KEMET 33μF Surface Mount Polymer Capacitor, 16V dc
  • RS Stock No. 179-3216
  • Mfr. Part No. T521B336M016ATE070
Each (In a Pack of 5)
£0.67(exc. VAT)
KEMET R76 Polypropylene Capacitor PP, 1kV dc, ±5%, 1nF
  • RS Stock No. 135-3495
  • Mfr. Part No. R76QD1100SE40J
Each (In a Pack of 10)
£0.413(exc. VAT)
Murata 4.7 mH ±10% Radial Inductor, Max SRF:1kHz, 160mA Idc, 9.3Ω Rdc, 1300R
  • RS Stock No. 167-6181
  • Mfr. Part No. 13R475C
Each (In a Box of 200)
£0.43(exc. VAT)
Bourns PTV 50kΩ Rotary Potentiometer 2-Gang Through Hole, PTV112-4420A-B503
  • RS Stock No. 693-0702P
  • Mfr. Part No. PTV112-4420A-B503
Each (Supplied in a Box)
£0.90(exc. VAT)
Wurth Elektronik 12MHz Crystal SMT 2-Pin 13.4 x 4.9 x 4.3mm
  • RS Stock No. 197-697
  • Mfr. Part No. 830003210
Each (On a Tape of 10)
£0.385(exc. VAT)
Vishay CRCW 20.5kΩ, 0402 (1005M) Thick Film SMD Resistor ±1% 0.063W
  • RS Stock No. 678-8951P
  • Mfr. Part No. CRCW040220K5FKED
Each (Supplied on a Reel)
£0.016(exc. VAT)
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