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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

846 of 999+
In Stock
Wurth Elektronik, 7447, 1280 Shielded Inductor with a Ferrite Core, 150 μH Surface Mount ±20% 2.45 A Idc
  • RS Stock No. 758-291
  • Mfr. Part No. 7447707151
Subtotal (1 tape of 5 units)
£9.63(exc. VAT)
£1.926/unit
Last RS stock
TE Connectivity CPF 205 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.063 W - CPF0603B205KE1
  • RS Stock No. 122-9074
  • Mfr. Part No. CPF0603B205KE1
Subtotal (1 bag of 20 units)
£4.32(exc. VAT)
£0.216/unit
In Stock
KOA RK73B 330 Ω, 0805 Thick Film Surface Mount Resistor ±5 % 0.25 W - RK73B2ATTD331J
  • RS Stock No. 432-270
  • Mfr. Part No. RK73B2ATTD331J
Subtotal (1 pack of 100 units)
£0.60(exc. VAT)
£0.006/unit
In Stock
RS PRO RS 12 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.063 W
  • RS Stock No. 804-7228
Subtotal (1 reel of 10000 units)
£10.00(exc. VAT)
£0.001/unit
In Stock
Panasonic 220 μF Surface Polymer Capacitor, 50V dc
  • RS Stock No. 181-2277
  • Mfr. Part No. EEHZS1H221P
Subtotal (1 reel of 250 units)
£222.50(exc. VAT)
£0.89/unit
In Stock
Panasonic 47 μF Capacitor 350V dc, Radial, Through Hole - EEUED2V470S Radial Lead
  • RS Stock No. 526-2203
  • Mfr. Part No. EEUED2V470S
Subtotal (1 pack of 5 units)
£11.15(exc. VAT)
£2.23/unit
In Stock
Wurth Elektronik 10 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Surface
  • RS Stock No. 242-1252P
  • Mfr. Part No. 885342208012
Subtotal 50 units (supplied on a continuous strip)
£5.05(exc. VAT)
£0.101/unit
Being discontinued
Panasonic 270 μF Surface Polymer Capacitor, 10V dc
  • RS Stock No. 788-7605P
  • Mfr. Part No. 10SVPC270M
Subtotal 2 units (supplied on a continuous strip)
£1.94(exc. VAT)
£0.97/unit
Currently unavailable
Rubycon 1000 μF Capacitor 35V dc, Radial, Through Hole - 35RX301000M12.5X25
  • RS Stock No. 704-7936
  • Mfr. Part No. 35RX301000M12.5X25
Subtotal (1 pack of 5 units)
£5.55(exc. VAT)
£1.11/unit
Limited stock
Sonitron 95 dB Panel Slow Pulse External 44 mm Buzzer 14 cm 5 V Min 80V Max
  • RS Stock No. 805-5257
  • Mfr. Part No. SRA 80I B5
Subtotal (1 unit)
£46.28(exc. VAT)
£46.28/unit
Temporarily out of stock
KEMET MMK Film Capacitor, ±5 %, 2.2 μF 63 V dc 40V ac, Through Hole
  • RS Stock No. 298-0194
  • Mfr. Part No. MMK15225J63B05L4BULK
Subtotal (1 pack of 5 units)
£6.95(exc. VAT)
£1.39/unit
In Stock
Vishay 680 Ω Metal Film Resistor 1 W 5 %
  • RS Stock No. 683-5568P
  • Mfr. Part No. PR01000106800JA100
Subtotal 10 units (supplied as a tape)
£1.01(exc. VAT)
£0.101/unit
In Stock
KEMET 47 μF Surface Polymer Capacitor, 35V dc
  • RS Stock No. 173-7264
  • Mfr. Part No. T521X476M035ATE070
Subtotal (1 unit)
£3.49(exc. VAT)
£3.49/unit
In Stock
TE Connectivity 220 mΩ Wirewound Resistor 7 W 5 % ER58R22JT
  • RS Stock No. 199-6384
  • Mfr. Part No. ER58R22JT
Subtotal (1 pack of 5 units)
£8.80(exc. VAT)
£1.76/unit
In Stock
Panasonic 33 μF Capacitor 50V dc, Surface - EEEFK1H330XL
  • RS Stock No. 262-1499
  • Mfr. Part No. EEEFK1H330XL
Subtotal (1 tape of 10 units)
£2.03(exc. VAT)
£0.203/unit
In Stock
KEMET 100 μF Surface Polymer Capacitor, 35V
  • RS Stock No. 244-0162
  • Mfr. Part No. A769KE107M1VLAS031
Subtotal (1 pack of 5 units)
£3.08(exc. VAT)
£0.616/unit
In Stock
Bourns 3310 50 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel
  • RS Stock No. 167-3512
  • Mfr. Part No. 3310C-001-503L
Subtotal (1 tube of 50 units)
£86.30(exc. VAT)
£1.726/unit
Temporarily out of stock
TE Connectivity 100 mΩ Wirewound Resistor 3 W 10 %
  • RS Stock No. 163-8517
  • Mfr. Part No. ER74R10KT
Subtotal (1 box of 1000 units)
£315.00(exc. VAT)
£0.315/unit
In Stock
Vishay MMA0204 56 Ω, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W - MMA02040C5609FB300
  • RS Stock No. 180-3818
  • Mfr. Part No. MMA02040C5609FB300
Subtotal (1 reel of 500 units)
£17.50(exc. VAT)
£0.035/unit
Temporarily out of stock
Bourns 56 μH Toroidal Inductor, 10.2 A Idc, 17 mΩ Rdc, 2300
  • RS Stock No. 172-7288
  • Mfr. Part No. 2310-V-RC
Subtotal (1 bag of 50 units)
£95.50(exc. VAT)
£1.91/unit
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