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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

169564 Products showing for Passive Components

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756 of 999+
In Stock
TE Connectivity 120 Ω Carbon Film Resistor 0.33 W 5 %
  • RS Stock No. 125-1132P
  • Mfr. Part No. CFR25J120R
Subtotal 20 units (supplied in a box)
£0.92(exc. VAT)
£0.046/unit
In Stock
TE Connectivity CPF-A 10 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - CPF-A-0805B10KE1
  • RS Stock No. 866-7272
  • Mfr. Part No. CPF-A-0805B10KE1
Subtotal (1 bag of 10 units)
£1.73(exc. VAT)
£0.173/unit
In Stock
Wurth Elektronik 500 μH 1 A Common Mode Filter 0.15 Ω 80V
  • RS Stock No. 124-1878
  • Mfr. Part No. 744223
Subtotal (1 pack of 5 units)
£9.55(exc. VAT)
£1.91/unit
Temporarily out of stock
KEMET 37.7 mH 1 A Common Mode Choke 0.64 Ω 250V
  • RS Stock No. 186-1059
  • Mfr. Part No. SSHB21H-R10377
Subtotal (1 pack of 5 units)
£10.60(exc. VAT)
£2.12/unit
In Stock
Murata Power Solutions 150 μH Leaded Inductor, Max SRF:5.7 MHz, Q:90, 520 mA Idc, 540 mΩ Rdc, 2200R
  • RS Stock No. 715-6715
  • Mfr. Part No. 22R154C
Subtotal (1 pack of 10 units)
£4.87(exc. VAT)
£0.487/unit
In Stock
Mobilemark LTMG408-3C3C3C2C-WHT-180 Dome Multi-Band Antenna with SMA Plug Connector, 4G, 5G, GNSS, WiFi
  • RS Stock No. 729-762
  • Mfr. Part No. LTMG408-3C3C3C2C-WHT-180
Subtotal (1 unit)
£230.37(exc. VAT)
£230.37/unit
In Stock
Murata 100 mA Common Mode Choke 2.7 Ω 5V
  • RS Stock No. 223-5025
  • Mfr. Part No. DLM0NSN500HY2D
Subtotal (1 tape of 50 units)
£3.20(exc. VAT)
£0.064/unit
In Stock
TRACOPOWER 10 μH 1.44 A Common Mode Choke 100 mΩ
  • RS Stock No. 249-6687
  • Mfr. Part No. TCK-047
Subtotal (1 unit)
£2.89(exc. VAT)
£2.89/unit
In Stock
Panasonic ERJ1T 390 mΩ, 2512 Thick Film Surface Mount Resistor ±1 % 1 W
  • RS Stock No. 721-6237P
  • Mfr. Part No. ERJ1TRQFR39U
Subtotal 5 units (supplied on a continuous strip)
£1.78(exc. VAT)
£0.356/unit
In Stock
Vishay CRCW 18.2 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 678-8863P
  • Mfr. Part No. CRCW040218K2FKED
Subtotal 50 units (supplied on a continuous strip)
£0.50(exc. VAT)
£0.01/unit
In Stock
TDK B32529 Polyester Capacitor (PET) 22 nF 63V ac 63 V dc, Through Hole 2
  • RS Stock No. 241-6540
  • Mfr. Part No. B32529C0223J289
Subtotal (1 bag of 5 units)
£1.17(exc. VAT)
£0.234/unit
In Stock
Bourns 5V dc 15 ppr Pulse Optical Encoder
  • RS Stock No. 239-4185
  • Mfr. Part No. PER601-P117-N0015
Subtotal (1 unit)
£5.33(exc. VAT)
£5.33/unit
In Stock
Yageo 56 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 %
  • RS Stock No. 199-7671P
  • Mfr. Part No. MFR-25FTE52-56K
Subtotal 100 units (supplied in a box)
£1.80(exc. VAT)
£0.018/unit
Temporarily out of stock
Panasonic 220 μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 365-4379P
  • Mfr. Part No. ECA1JHG221
Subtotal 5 units (supplied in a bag)
£2.93(exc. VAT)
£0.586/unit
In Stock
Sonitron 86 dB Panel Mount Continuous Internal 26 mm Piezo Buzzer Component 140 mm 5 V dc Min 35V dc Max
  • RS Stock No. 245-6613
  • Mfr. Part No. SCI535B1
Subtotal (1 unit)
£27.46(exc. VAT)
£27.46/unit
In Stock
Yageo 4.7 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 198-8372P
  • Mfr. Part No. CS1206KRX7R0BB472
Subtotal 10 units (supplied on a continuous strip)
£0.81(exc. VAT)
£0.081/unit
Stocked by manufacturer
OPKON 24V dc, 5 V dc 1024 ppr Pulse Incremental Encoder with a 10 mm Hollow Shaft Shaft, Hollow Shaft Mount, Radial
  • RS Stock No. 749-278
  • Mfr. Part No. PRI-58-H-10-HLD-1024-ZZ-V3-2M5-R
Subtotal (1 unit)
£137.29(exc. VAT)
£137.29/unit
In Stock
TE Connectivity, 3627, 3627 Unshielded Surface Mount Inductor with a Ferrite Core, 1.2 mH 10 % 45 mA Idc
  • RS Stock No. 171-344
  • Mfr. Part No. 3627453226122K
Subtotal (1 tape of 20 units)
£6.94(exc. VAT)
£0.347/unit
In Stock
Wurth Elektronik 33 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 263-4173
  • Mfr. Part No. 885012207125
Subtotal (1 tape of 50 units)
£4.15(exc. VAT)
£0.083/unit
Temporarily out of stock
TE Connectivity 0.47 Ω Wirewound Fusible Resistor 1 W 5 % FWFU1WR47J
  • RS Stock No. 732-587
  • Mfr. Part No. FWFU1WR47J
Subtotal (1 tape of 100 units)
£7.60(exc. VAT)
£0.076/unit
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