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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

167705 Products showing for Passive Components

670 of 999+
Temporarily out of stock
Bourns, SRP1770TA, 1770 Shielded Wirewound Surface Mount Inductor with a Carbonyl Powder Core, 22 μH ±20 % 12 A Idc Q:20
  • RS Stock No. 905-4766P
  • Mfr. Part No. SRP1770TA-220M
Subtotal 1 unit (supplied on a continuous strip)
£2.93(exc. VAT)
£2.93/unit
In Stock
Bourns 100 mH Ferrite Leaded Inductor, Max SRF:100 kHz, Q:20, 20 mA Idc, 235 Ω Rdc, RL622
  • RS Stock No. 736-1169P
  • Mfr. Part No. RL622-104K-RC
Subtotal 10 units (supplied in a bag)
£5.37(exc. VAT)
£0.537/unit
Temporarily out of stock
Bourns, SRP1770TA, 1770 Shielded Wirewound Surface Mount Inductor with a Carbonyl Powder Core, 4.7 μH ±20 % 25 A Idc
  • RS Stock No. 905-4744
  • Mfr. Part No. SRP1770TA-4R7M
Subtotal (1 unit)
£2.55(exc. VAT)
£2.55/unit
In Stock
ROHM ESR25 4.7 Ω, 1210 Thick Film Resistor ±1 % 0.66 W - ESR25JZPF4R70
  • RS Stock No. 263-7494
  • Mfr. Part No. ESR25JZPF4R70
Subtotal (1 tape of 10 units)
£1.39(exc. VAT)
£0.139/unit
Currently unavailable
Vishay CRCW 14.7 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW120614K7FKEA
  • RS Stock No. 679-1819
  • Mfr. Part No. CRCW120614K7FKEA
Subtotal (1 pack of 50 units)
£1.20(exc. VAT)
£0.024/unit
In Stock
KOA TLRZ 0 mΩ, 0402 Metal Plate Surface Mount Resistor 0.2 W
  • RS Stock No. 192-1853P
  • Mfr. Part No. TLRZ1ETTB
Subtotal 20 units (supplied on a continuous strip)
£4.54(exc. VAT)
£0.227/unit
In Stock
TDK, CT/B Multilayer Varistor 1 A, Clamping 54 V
  • RS Stock No. 775-2761P
  • Mfr. Part No. B72520E0200K062
Subtotal 100 units (supplied on a continuous strip)
£29.20(exc. VAT)
£0.292/unit
In Stock
KEMET 100 pF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 146-6562
  • Mfr. Part No. C0805C101K5GACTU
Subtotal (1 reel of 4000 units)
£36.00(exc. VAT)
£0.009/unit
Last RS stock
TDK 4700 μF Capacitor 100V, Screw
  • RS Stock No. 209-8711
  • Mfr. Part No. B43712A5478M600
Subtotal (1 unit)
£103.86(exc. VAT)
£103.86/unit
In Stock
Vishay 2 kΩ Thin Film Resistor 0.4 W 1 %
  • RS Stock No. 150-984P
  • Mfr. Part No. MBA02040C2001FC100
Subtotal 100 units (supplied in a bag)
£16.20(exc. VAT)
£0.162/unit
In Stock
Fair-Rite Ferrite Core Round Cable Core 28.6 mm, For: Suppression Components 6.35 mm ID 14.3 mm OD
  • RS Stock No. 466-9798
  • Mfr. Part No. 2631540002
Subtotal (1 pack of 5 units)
£4.63(exc. VAT)
£0.926/unit
In Stock
KEMET 0.1 F Supercapacitor -20 to 80 % Tolerance, FC 3.5V dc, Surface
  • RS Stock No. 188-2090P
  • Mfr. Part No. FC0V104ZFTBR24
Subtotal 2 units (supplied on a continuous strip)
£5.54(exc. VAT)
£2.77/unit
Temporarily out of stock
KEMET 2.2 μF Supercapacitor -20 to 80 % Tolerance, Supercap FG 5.5V dc, Through Hole
  • RS Stock No. 173-5051
  • Mfr. Part No. FG0H225ZF
Subtotal (1 box of 90 units)
£371.88(exc. VAT)
£4.132/unit
Last RS stock
Rubycon 220 μF Capacitor 250V dc, Snap-in - 250MXG220MEFCSN20X25 Radial Lead
  • RS Stock No. 652-2023
  • Mfr. Part No. 250MXG220MEFCSN20X25
Subtotal (1 unit)
£3.07(exc. VAT)
£3.07/unit
Limited stock
Panasonic 22 μF Capacitor 160V dc, Radial, Through Hole - EEUEE2C220 Radial Lead
  • RS Stock No. 699-7385
  • Mfr. Part No. EEUEE2C220
Subtotal (1 pack of 5 units)
£4.25(exc. VAT)
£0.85/unit
In Stock
Bourns 3.3 μH Ferrite Leaded Inductor, Max SRF:50 MHz, Q:30, 3.6 A Idc, 18 mΩ Rdc, RLB
  • RS Stock No. 811-8884P
  • Mfr. Part No. RLB0912-3R3ML
Subtotal 10 units (supplied in a bag)
£2.22(exc. VAT)
£0.222/unit
In Stock
Murata Power Solutions 22 μH Leaded Inductor, Max SRF:1 kHz, 650 mA Idc, 270 mΩ Rdc, 1100R
  • RS Stock No. 800-4369
  • Mfr. Part No. 11R223C
Subtotal (1 bag of 5 units)
£1.24(exc. VAT)
£0.248/unit
In Stock
Murata, LQW, 1608 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 180 nH ±5 % 140 mA Idc Q:25
  • RS Stock No. 811-9733P
  • Mfr. Part No. LQW18ANR18J00D
Subtotal 10 units (supplied on a continuous strip)
£0.26(exc. VAT)
£0.026/unit
In Stock
Vishay 100 mΩ Wirewound Resistor 1 W 1 %
  • RS Stock No. 788-8012P
  • Mfr. Part No. RLP01R1000FS14
Subtotal 5 units (supplied in a bag)
£61.60(exc. VAT)
£12.32/unit
Last RS stock
Vishay 402 kΩ Thin Film Resistor 0.6 W 1 % MRS25000C4023FCT00
  • RS Stock No. 683-3667
  • Mfr. Part No. MRS25000C4023FCT00
Subtotal (1 pack of 25 units)
£1.925(exc. VAT)
£0.077/unit
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