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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

169652 Products showing for Passive Components

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1535 of 999+
In Stock
Yageo RT 18.7 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W
  • RS Stock No. 199-1427P
  • Mfr. Part No. RT0603BRD0718K7L
Subtotal 10 units (supplied on a continuous strip)
£0.66(exc. VAT)
£0.066/unit
Currently unavailable
Linx ANT-868-JJB-RA Dome WiFi Antenna, WiFi
  • RS Stock No. 202-5832
  • Mfr. Part No. ANT-868-JJB-RA
Subtotal (1 pack of 2 units)
£7.38(exc. VAT)
£3.69/unit
In Stock
TDK, CT/B Multilayer Varistor 2.5 A, Clamping 77 V
  • RS Stock No. 775-2799P
  • Mfr. Part No. B72530E0300K062
Subtotal 50 units (supplied on a continuous strip)
£16.30(exc. VAT)
£0.326/unit
In Stock
KEMET 400 μH 31 A Common Mode Choke 0.95 mΩ 1000V
  • RS Stock No. 242-7706
  • Mfr. Part No. SCF25XV-310-2R3A004JV
Subtotal (1 unit)
£10.06(exc. VAT)
£10.06/unit
In Stock
PUI Audio 0.8 W Miniature Speaker
  • RS Stock No. 276-775
  • Mfr. Part No. SMS-1508MS-HT-R
Subtotal (1 unit)
£3.51(exc. VAT)
£3.51/unit
Stocked by manufacturer
ABB, OVR Surge Protection Device 400V ac Maximum Voltage Rating 20 kA Maximum Surge Current T2-T3 Surge Protective
  • RS Stock No. 231-9981
  • Mfr. Part No. 2CTB803973R1200 OVR T2-T3 3N 20-275 P Q
Subtotal (1 unit)
£246.38(exc. VAT)
£246.38/unit
In Stock
Dehn, DRC Modular Surge Protector 350V dc Maximum Voltage Rating 1 A Maximum Surge Current Surge Monitor
  • RS Stock No. 768-1823
  • Mfr. Part No. DRC MCM XT
Subtotal (1 unit)
£463.08(exc. VAT)
£463.08/unit
In Stock
Yageo RC_L 4.99 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W
  • RS Stock No. 199-5596P
  • Mfr. Part No. RC0603FR-074K99L
Subtotal 100 units (supplied on a continuous strip)
£0.40(exc. VAT)
£0.004/unit
In Stock
Murata Ferrite Bead 1.1 mm (Surface) (1206) (Chip Ferrite Bead), 390 Ω impedance at 100 MHz
  • RS Stock No. 724-1570P
  • Mfr. Part No. BLM31PG391SN1L
Subtotal 25 units (supplied on a continuous strip)
£3.55(exc. VAT)
£0.142/unit
Temporarily out of stock
Panasonic 10 μF Capacitor 100V dc, Surface
  • RS Stock No. 262-4982
  • Mfr. Part No. EEEFN2A100L
Subtotal (1 reel of 500 units)
£85.50(exc. VAT)
£0.171/unit
In Stock
Visaton 8 Ω 1 W Miniature Speaker 20 mm Dia. 3.6 mm
  • RS Stock No. 197-6418
  • Mfr. Part No. K 20 8 OHM
Subtotal (1 unit)
£8.87(exc. VAT)
£8.87/unit
In Stock
ROHM ESR25 51 kΩ, 1210 Thick Film Resistor ±1 % 0.66 W - ESR25JZPF5102
  • RS Stock No. 263-7501
  • Mfr. Part No. ESR25JZPF5102
Subtotal (1 tape of 10 units)
£2.38(exc. VAT)
£0.238/unit
Temporarily out of stock
TE Connectivity 15 kΩ Metal Oxide Resistor 2 W 5 % ROX2SJ15K
  • RS Stock No. 161-5181
  • Mfr. Part No. ROX2SJ15K
Subtotal (1 box of 1000 units)
£70.00(exc. VAT)
£0.07/unit
Last RS stock
VPG Foil Resistors 100 Ω Metal Foil Resistor 0.6 W 0.01 %
  • RS Stock No. 684-1595P
  • Mfr. Part No. Y1453100R000T9L
Subtotal 1 unit (supplied in a bag)
£34.89(exc. VAT)
£34.89/unit
Currently unavailable
Alpha 1 kΩ Metal Film Fixed Resistor 0.25 W 0.05 FLCX1K0000A
  • RS Stock No. 335-145
  • Mfr. Part No. FLCX1K0000A
Subtotal (1 unit)
£12.37(exc. VAT)
£12.37/unit
Temporarily out of stock
Abracon, 8MHz Crystal Oscillator Crystal Oscillator, 50 ppm LVCMOS, HCMOS, CMOS, 4-Pin Surface Mount
  • RS Stock No. 243-4402P
  • Mfr. Part No. ASDDV-8.000MHZ-LC-T3
Subtotal 10 units (supplied on a continuous strip)
£8.59(exc. VAT)
£0.859/unit
In Stock
KEMET 10 μF MnO2 Tantalum Capacitor 25V dc, Surface, T491 Series
  • RS Stock No. 801-5495P
  • Mfr. Part No. T491B106K025AT
Subtotal 5 units (supplied on a continuous strip)
£5.27(exc. VAT)
£1.054/unit
In Stock
Murata Ferrite Bead 0.8 mm (Surface) (0603) (Chip Ferrite Bead), 600 Ω impedance at 100 MHz
  • RS Stock No. 104-8530
  • Mfr. Part No. BLM18AG601SH1D
Subtotal (1 pack of 200 units)
£6.60(exc. VAT)
£0.033/unit
Temporarily out of stock
Panasonic ERJPA3 200 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 862-6821P
  • Mfr. Part No. ERJPA3F2003V
Subtotal 100 units (supplied on a continuous strip)
£3.50(exc. VAT)
£0.035/unit
Temporarily out of stock
Yageo 10 kΩ Metal Film Metal Film Fixed Resistor 0.4 W 1 %
  • RS Stock No. 199-7793
  • Mfr. Part No. MF0204FTE52-10K
Subtotal (1 box of 5000 units)
£190.00(exc. VAT)
£0.038/unit
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