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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
Capacitors
Crystals, Oscillators & Resonators
EMI Filters & Protection
Fixed Resistors
Inductors
Passive Components Kits
Rotary Encoders
Sounder, Buzzer & Microphone Components
Surge Protection Components
Variable Resistors

169648 Products showing for Passive Components

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Vishay MKT 1813 Film Capacitor 470 nF 160V ac 250 V dc, Through Hole
  • RS Stock No. 173-1433
  • Mfr. Part No. MKT1813447255
Subtotal (1 box of 1750 units)
£1,223.25(exc. VAT)
£0.699/unit
Currently unavailable
TDK Thermistor 10 kΩ, 0805 1.3 mm 2 mm 600 μm
  • RS Stock No. 167-0337
  • Mfr. Part No. B57421V2103J062
Subtotal (1 reel of 4000 units)
£380.00(exc. VAT)
£0.095/unit
Temporarily out of stock
TDK 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 903-8708
  • Mfr. Part No. CGA4J2X8R1H104K125AA
Subtotal (1 pack of 50 units)
£2.60(exc. VAT)
£0.052/unit
Temporarily out of stock
TDK B32529 Polyester Capacitor (PET) 1 nF 100V ac 100 V dc, Through Hole 2
  • RS Stock No. 241-6565
  • Mfr. Part No. B32529C1102J189
Subtotal (1 reel of 2800 units)
£168.00(exc. VAT)
£0.06/unit
In Stock
Murata Ferrite Bead 850 μm (Surface) (0805) (Chip Ferrite Bead), 1000 Ω impedance at 100 MHz
  • RS Stock No. 724-1551P
  • Mfr. Part No. BLM21RK102SN1D
Subtotal 25 units (supplied on a continuous strip)
£1.80(exc. VAT)
£0.072/unit
Temporarily out of stock
Bourns, SRP1265WA, 1265 Shielded Power Inductor with a Metal Alloy Powder Core, 4.7 μH ±20 % 17 A Idc Q:20
  • RS Stock No. 247-6087P
  • Mfr. Part No. SRP1265WA-4R7M
Subtotal 1 unit (supplied on a continuous strip)
£1.47(exc. VAT)
£1.47/unit
In Stock
Panasonic ERA8V 100 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8VEB1003V
  • RS Stock No. 259-6960
  • Mfr. Part No. ERA8VEB1003V
Subtotal (1 reel of 5000 units)
£1,070.00(exc. VAT)
£0.214/unit
In Stock
Vishay F1772 Film Capacitor 100 nF 310V ac 310 V dc, Through Hole
  • RS Stock No. 148-474P
  • Mfr. Part No. F17724102200
Subtotal 20 units (supplied in a bag)
£25.40(exc. VAT)
£1.27/unit
In Stock
Panasonic ERJPA3 200 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ERJPA3F2000V
  • RS Stock No. 862-6815
  • Mfr. Part No. ERJPA3F2000V
Subtotal (1 bag of 100 units)
£3.30(exc. VAT)
£0.033/unit
Last RS stock
Yageo 330 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 198-8201
  • Mfr. Part No. CS0603KRX7R8BB334
Subtotal (1 tape of 100 units)
£5.00(exc. VAT)
£0.05/unit
Temporarily out of stock
Murata Ferrite Bead (Surface) (0603) (Ferrite Bead), 1000 Ω impedance at 100 MHz
  • RS Stock No. 276-3650
  • Mfr. Part No. BLM18KG102SH1D
Subtotal (1 reel of 4000 units)
£104.00(exc. VAT)
£0.026/unit
In Stock
TDK B32924C Polypropylene Film Capacitor 1 μF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 241-6663
  • Mfr. Part No. B32924C3105K189
Subtotal (1 reel of 350 units)
£215.60(exc. VAT)
£0.616/unit
In Stock
Wurth Elektronik, WE-TPC, 1919 Shielded Power Inductor with a Ferrite Core, 68 μH ±30 % 500 mA Idc
  • RS Stock No. 486-272
  • Mfr. Part No. 744042680
Subtotal (1 unit)
£0.64(exc. VAT)
£0.64/unit
Temporarily out of stock
Bourns CRT 10 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - CRT0603-BY-1002ELF
  • RS Stock No. 167-4507
  • Mfr. Part No. CRT0603-BY-1002ELF
Subtotal (1 reel of 5000 units)
£245.00(exc. VAT)
£0.049/unit
Last RS stock
KYOCERA AVX 82 pF Multilayer Ceramic Capacitor, 200V dc, ±5 %, Surface
  • RS Stock No. 698-4119P
  • Mfr. Part No. 08052U820JAT2A
Subtotal 5 units (supplied on a continuous strip)
£0.30(exc. VAT)
£0.06/unit
In Stock
Bourns, SRF0504, 0504 Surface Mount Inductor with a Ferrite Core, 1.1 μH ±35 % 2 A Idc
  • RS Stock No. 246-3297P
  • Mfr. Part No. SRF0504-351Y
Subtotal 1 unit (supplied on a continuous strip)
£0.89(exc. VAT)
£0.89/unit
In Stock
Yageo PE_L 10 mΩ, 2512 Current Sensing Surface Mount Resistor ±1 % 2 W - PE2512FKE7W0R01L
  • RS Stock No. 199-5902
  • Mfr. Part No. PE2512FKE7W0R01L
Subtotal (1 tape of 10 units)
£3.21(exc. VAT)
£0.321/unit
In Stock
Wurth Elektronik, WE-MK, 0603 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 12 nH Multilayer ±2 % 300
  • RS Stock No. 245-8491
  • Mfr. Part No. 7447860112G
Subtotal (1 reel of 4000 units)
£156.00(exc. VAT)
£0.039/unit
In Stock
Wurth Elektronik Ferrite Ring 5 mm 5 mm (EMI Suppression Toroidal Ferrite), 34 Ω impedance at 25 MHz, 56 Ω impedance at
  • RS Stock No. 332-397
  • Mfr. Part No. 742701712
Subtotal (1 bag of 50 units)
£18.55(exc. VAT)
£0.371/unit
In Stock
Bourns 6639 20 kΩ Rotary Potentiometer 1-Gang Panel Mount
  • RS Stock No. 164-2683P
  • Mfr. Part No. 6639S-1-203
Subtotal 1 unit (supplied in a bag)
£17.51(exc. VAT)
£17.51/unit
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