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

154991 Products showing for Passive Components

310 of 999+
Vishay MMA0204 5.6kΩ, Melf 0204 Thin Film SMD Resistor ±1% 0.25W
  • RS Stock No. 678-7481
  • Mfr. Part No. MMA02040C5601FB300
Each (In a Pack of 25)
£0.04
Yageo 1kΩ Metal Film Fixed Resistor 0.25W ±1% MFR-25FTE52-1K
  • RS Stock No. 199-7601P
  • Mfr. Part No. MFR-25FTE52-1K
Each (Supplied in a Box)
£0.016
Vishay 368, MKT368 Polyester Film Capacitor, 63 V ac, 100 V dc, ±10%, 220nF, Through Hole
  • RS Stock No. 115-584
  • Mfr. Part No. BFC236825224
Each (In a Pack of 5)
£0.888
KOA, RK73H1E Thick Film, SMT 170 Resistor Kit, with 34000 pieces, 1 Ω → 10MΩ
  • RS Stock No. 864-4015
  • Mfr. Part No. RK73H1E-KIT
1 Kit
£309.23
ROHM 100kΩ, 0603 (1608M) Thick Film Surface Mount Fixed Resistor 1% 0.3W
  • RS Stock No. 261-9900
  • Mfr. Part No. SDR03EZPF1003
Each (On a Tape of 100)
£0.026
Vishay 9.1kΩ Thin Film Resistor 0.6W ±1% MRS25000C9101FCT00
  • RS Stock No. 683-4130
  • Mfr. Part No. MRS25000C9101FCT00
Each (In a Pack of 25)
£0.076
Bourns, MOV-14D Metal Oxide Varistor 430pF 50A, Clamping 775V, Varistor 470V
  • RS Stock No. 851-8335
  • Mfr. Part No. MOV-14D471K
Each
£0.31
RF Solutions ANT-GSMPUKS4-SMA Puck Multiband Antenna with SMA Connector, 2G (GSM/GPRS), 3G (UTMS), 4G (LTE)
  • RS Stock No. 192-6594
  • Mfr. Part No. ANT-GSMPUKS4-SMA
Each
£9.59
Vishay 22000μF Aluminium Electrolytic Capacitor 100V dc - MAL210129223E3
  • RS Stock No. 280-3364
  • Mfr. Part No. MAL210129223E3
Each
£100.11
Wurth, 784373, 7030 Shielded Wire-wound SMD Inductor with a Magnetic Iron Alloy Core, 470 nH ±20% Shielded 13.8A Idc
  • RS Stock No. 426-892
  • Mfr. Part No. 7843734600047
Each (On a Tape of 5)
£2.20
Elma Mechanical Rotary Encoder
  • RS Stock No. 224-2287
  • Mfr. Part No. E37-VT6330-1
Each
£53.68
Abracon AEACBA081014-M698 Puck GSM & GPRS Antenna with SMA Male Connector, 4G (LTE)
  • RS Stock No. 250-5154
  • Mfr. Part No. AEACBA081014-M698
Each
£23.12
Murata, BNX 15A 50 V dc 1MHz → 1GHz, Through Hole EMI Filter, Pin
  • RS Stock No. 216-6042P
  • Mfr. Part No. BNX005-11
Each (Supplied in a Box)
£9.69
KEMET R47 Metallised Polypropylene Film Capacitor, 1 kV dc, 440 V ac, ±10%, 100nF, Through Hole
  • RS Stock No. 165-0183
  • Mfr. Part No. R474I31005001K
Each (In a Pack of 10)
£0.678
100Ω, Through Hole Trimmer Potentiometer 0.5W Top Adjust Bourns, 3362
  • RS Stock No. 522-0877
  • Mfr. Part No. 3362P-1-101LF
Each
£0.77
Rubycon 1000μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - 50YXF1000M16X25
  • RS Stock No. 224-4410
  • Mfr. Part No. 50YXF1000M16X25
Each (In a Pack of 5)
£1.486
KEMET 100nF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , Through Hole
  • RS Stock No. 538-1433P
  • Mfr. Part No. C322C104K5R5TA
Each (Supplied in a Bag)
£0.226
Vishay 120kΩ Metal Film Resistor 0.4W ±5% SFR2500001203JA500
  • RS Stock No. 165-1182
  • Mfr. Part No. SFR2500001203JA500
Each (In a Pack of 50)
£0.035
Dehn, DSH Modular Surge Protector 255 V ac Maximum Voltage Rating 12.5kA Maximum Surge Current Lightning Arrester
  • RS Stock No. 786-9342
  • Mfr. Part No. DSH TN 255
Each
£551.37
Wurth Elektronik WCAP-FTX2 Polypropylene Capacitor PP, 275V ac, ±10%, 47nF, Through Hole
  • RS Stock No. 871-2391
  • Mfr. Part No. 890324025009CS
Each (In a Bag of 10)
£0.33
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