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

169177 Products showing for Passive Components

Sort by
989 of 999+
In Stock
Murata Ferrite Bead 1.1 mm (Surface) (1206) (Chip Ferrite Bead), 33 Ω impedance at 100 MHz
  • RS stock no. 724-1576P
  • Mfr. Part No. BLM31PG330SN1L
Subtotal 25 units (supplied on a continuous strip)
R 64,875(exc. VAT)
R 2,595/unit
In Stock
Wurth Elektronik Ferrite Bead 5 mm (Surface) 0.5 mm (Surface Mount) (Bead), 425 Ω impedance at 25 MHz, 580 Ω impedance
  • RS stock no. 736-2125P
  • Mfr. Part No. 7427512
Subtotal 10 units (supplied on a continuous strip)
R 269,29(exc. VAT)
R 26,929/unit
In Stock
WIMA MKS2 Film Capacitor 33 nF 40V ac 63 V dc, Through Hole
  • RS stock no. 108-2356
  • Mfr. Part No. MKS2C023301A00KSSD
Subtotal (1 pack of 5 units)
R 42,58(exc. VAT)
R 8,516/unit
In Stock
Micro Crystal 32.768 kHz Crystal ±20 ppm SMD 2-Pin 0.9 mm 5 mm 1.9mm
  • RS stock no. 672-7613P
  • Mfr. Part No. CC4V-T1A 32.768kHz 9pF +-20ppm
Subtotal 5 units (supplied as a tape)
R 135,98(exc. VAT)
R 27,196/unit
In Stock
ECS Inc International 25MHz Oscillator HCMOS ±2.5 ppm SMD
  • RS stock no. 301-179P
  • Mfr. Part No. ECS-TXO-2520-33-250-AN-TR
Subtotal 1 unit (supplied on a continuous strip)
R 56,02(exc. VAT)
R 56,02/unit
Last RS stock
Murata NFE61HT / PT, Feedthrough Capacitor 50V dc, Embossed Tape 360 pF, Surface
  • RS stock no. 188-8750P
  • Mfr. Part No. NFE61PT361B1H9L
Subtotal 20 units (supplied on a continuous strip)
R 216,52(exc. VAT)
R 10,826/unit
In Stock
Epson, 32.768MHz Crystal Oscillator Crystal Surface Mount
  • RS stock no. 298-619P
  • Mfr. Part No. X1A000171000111
Subtotal 20 units (supplied on a continuous strip)
R 216,60(exc. VAT)
R 10,83/unit
Last RS stock
KEMET C4AT Film Capacitor, ±5 %, 5 μF 600 V dc 350V ac, Through Hole
  • RS stock no. 123-5098
  • Mfr. Part No. C4ATHBW4500A3FJ
Subtotal (1 unit)
R 198,81(exc. VAT)
R 198,81/unit
Temporarily out of stock
KEMET R46 Film Capacitor X2, ±20 %, 2.2 μF 275 V dc 275V ac, Through Hole
  • RS stock no. 126-2254
  • Mfr. Part No. R46KN422000P0M
Subtotal (1 pack of 10 units)
R 218,69(exc. VAT)
R 21,869/unit
In Stock
KEMET C44A Film Capacitor, ±5 %, 10 μF 1.2 kV dc 500V ac, Screw
  • RS stock no. 123-5146
  • Mfr. Part No. C44APGP5100ZE0J
Subtotal (1 unit)
R 878,67(exc. VAT)
R 878,67/unit
In Stock
Vishay MKT 1817 Film Capacitor 33 nF 160V ac 250 V dc, Through Hole
  • RS stock no. 117-640
  • Mfr. Part No. MKT1817333255
Subtotal (1 pack of 10 units)
R 138,21(exc. VAT)
R 13,821/unit
In Stock
Vishay CRCW 100 Ω, 2512 Thick Film Surface Mount Resistor ±1 % Surface 1 W - CRCW2512100RFKEG
  • RS stock no. 679-2402P
  • Mfr. Part No. CRCW2512100RFKEG
Subtotal 25 units (supplied on a continuous strip)
R 43,25(exc. VAT)
R 1,73/unit
In Stock
TE Connectivity CPF-A 470 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.1 W
  • RS stock no. 866-7437P
  • Mfr. Part No. CPF-A-0805B470RE1
Subtotal 10 units (supplied on a continuous strip)
R 39,02(exc. VAT)
R 3,902/unit
Temporarily out of stock
KEMET RC Capacitor 470 nF 100 Ω ±30 % 1 630 V dc, Through Hole, PMR209
  • RS stock no. 172-6734
  • Mfr. Part No. PMR209ME6470M100R30
Subtotal (1 bag of 75 units)
R 3 755,475(exc. VAT)
R 50,073/unit
In Stock
TE Connectivity SMQ 1 Ω, 2010 Thick Film Surface Mount Resistor 1 % Solder 1 W - RLC73PD2H1R0FTDF
  • RS stock no. 286-8887P
  • Mfr. Part No. RLC73PD2H1R0FTDF
Subtotal 5 units (supplied on a continuous strip)
R 38,80(exc. VAT)
R 7,76/unit
Last RS stock
Rubycon 47 μF Capacitor 350V dc, Radial, Through Hole Radial Lead
  • RS stock no. 749-7341P
  • Mfr. Part No. 350BXC47MEFC16X20
Subtotal 2 units (supplied in a bag)
R 79,84(exc. VAT)
R 39,92/unit
In Stock
Arcol 732 Ω Metal Film Resistor 0.25 W 0.1 %
  • RS stock no. 487-5943P
  • Mfr. Part No. MRA0207732RBTA015
Subtotal 5 units (supplied as a tape)
R 61,57(exc. VAT)
R 12,314/unit
In Stock
Rotronic Openable, Diameter 10 mm Ferrite Sleeve, Apertures: 1 32 mm 23.5 mm 24.5 mm, For EMI Suppression
  • RS stock no. 116-1487
  • Mfr. Part No. 11.05.1010
Subtotal (1 unit)
R 86,15(exc. VAT)
R 86,15/unit
In Stock
Wurth Elektronik Openable, Diameter 7.5 mm Ferrite Ring Key 40 mm 20 mm 24 mm, For General Application
  • RS stock no. 248-8151
  • Mfr. Part No. 78271131S
Subtotal (1 tray of 38 units)
R 2 515,144(exc. VAT)
R 66,188/unit
In Stock
Wurth Elektronik Openable, Diameter 8.5 mm Ferrite Ring Key 40 mm 20 mm 24 mm, For General Application
  • RS stock no. 248-8153
  • Mfr. Part No. 78271132
Subtotal (1 tray of 38 units)
R 2 808,58(exc. VAT)
R 73,91/unit
1
989
8459
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links