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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

168903 Products showing for Passive Components

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889 of 999+
Temporarily out of stock
Panasonic ERJ 9.1 Ω, 0805 Surface Mount Resistor ±1 % 0.5 W - ERJ6DQF9R1V
  • RS Stock No. 243-1966
  • Mfr. Part No. ERJ6DQF9R1V
Subtotal (1 reel of 5000 units)
£140.00(exc. VAT)
£0.028/unit
In Stock
Vishay PE30 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 790-4287P
  • Mfr. Part No. PE30L0FR102KAB
Subtotal 1 unit (supplied in a bag)
£30.24(exc. VAT)
£30.24/unit
In Stock
KEMET 2.2 μF MnO2 Tantalum Capacitor 16V dc, Surface, T491 Series
  • RS Stock No. 648-0660P
  • Mfr. Part No. T491A225K016AT
Subtotal 10 units (supplied on a continuous strip)
£1.75(exc. VAT)
£0.175/unit
In Stock
Alps Alpine RK163 10 kΩ Rotary Carbon Film Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole, RK1631110TV9
  • RS Stock No. 172-6360
  • Mfr. Part No. RK1631110TV9
Subtotal (1 box of 1000 units)
£2,014.00(exc. VAT)
£2.014/unit
Stocked by manufacturer
Weidmüller, 13521 Surge Arrester 280V ac Maximum Voltage Rating 25 kA Maximum Surge Current Type 1 Arrester, Type 2
  • RS Stock No. 249-3335
  • Mfr. Part No. 1352120000
Subtotal (1 unit)
£107.68(exc. VAT)
£107.68/unit
Last RS stock
TE Connectivity RN73 4.87 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RN73C2A4K87B
  • RS Stock No. 215-3156
  • Mfr. Part No. RN73C2A4K87B
Subtotal (1 pack of 5 units)
£1.01(exc. VAT)
£0.202/unit
In Stock
Wurth Elektronik 100 μH 450 mA Common Mode Filter 0.45 Ω 80V
  • RS Stock No. 904-0278
  • Mfr. Part No. 744253101
Subtotal (1 unit)
£2.14(exc. VAT)
£2.14/unit
In Stock
Yageo RC 270 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 125 mW - RC0805FR-07270RL
  • RS Stock No. 242-6961
  • Mfr. Part No. RC0805FR-07270RL
Subtotal (1 tape of 100 units)
£0.80(exc. VAT)
£0.008/unit
Limited stock
20 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Bourns, 3296
  • RS Stock No. 521-9546P
  • Mfr. Part No. 3296P-1-203LF
Subtotal 1 unit (supplied in a tube)
£1.39(exc. VAT)
£1.39/unit
Currently unavailable
Molex 204281-0100 Patch WiFi Antenna with Micro-Coaxial RF Connector, WiFi (Dual Band)
  • RS Stock No. 146-8850
  • Mfr. Part No. 204281-0100
Subtotal (1 unit of 20 units)
£1.63(exc. VAT)
£1.63/unit
Temporarily out of stock
Yageo AC 3.3 kΩ, 0402 Thick Film Resistor ±1 % 0.06 W - AC0402FR-073K3L
  • RS Stock No. 197-7983
  • Mfr. Part No. AC0402FR-073K3L
Subtotal (1 reel of 10000 units)
£20.00(exc. VAT)
£0.002/unit
Last RS stock
Murata 33 nF Multilayer Ceramic Capacitor, 1kV dc, ±10 %, Surface
  • RS Stock No. 723-6883
  • Mfr. Part No. GRM43DR73A333KW01L
Subtotal (1 pack of 5 units)
£0.80(exc. VAT)
£0.16/unit
Temporarily out of stock
Vishay 535 10 kΩ Rotary Potentiometer 5-Turns 1-Gang Panel Mount
  • RS Stock No. 460-1922P
  • Mfr. Part No. 535B1103JC
Subtotal 1 unit (supplied in a box)
£36.01(exc. VAT)
£36.01/unit
Currently unavailable
Panasonic ERA 1000 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3ARB102V
  • RS Stock No. 181-2446
  • Mfr. Part No. ERA3ARB102V
Subtotal (1 reel of 500 units)
£80.50(exc. VAT)
£0.161/unit
In Stock
Panasonic ERA 680 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB681V
  • RS Stock No. 180-9769
  • Mfr. Part No. ERA3AEB681V
Subtotal (1 reel of 500 units)
£17.00(exc. VAT)
£0.034/unit
In Stock
Vishay 240 Ω Thin Film Resistor 0.6 W 1 %
  • RS Stock No. 683-4180P
  • Mfr. Part No. MRS25000C2400FCT00
Subtotal 25 units (supplied in a bag)
£2.125(exc. VAT)
£0.085/unit
In Stock
PUI Audio 92 dBA Surface External Piezo Buzzer Transducer 2.5 V Min 4.5V Max
  • RS Stock No. 276-788
  • Mfr. Part No. SMT-0827-S-2-R
Subtotal (1 unit)
£2.76(exc. VAT)
£2.76/unit
In Stock
Yageo 2.2 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 200-6544
  • Mfr. Part No. CC0603KRX5R7BB225
Subtotal (1 reel of 4000 units)
£68.00(exc. VAT)
£0.017/unit
Currently unavailable
TE Connectivity CPF 3.57 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF0805B3K57E1
  • RS Stock No. 144-5367
  • Mfr. Part No. CPF0805B3K57E1
Subtotal (1 reel of 1000 units)
£101.00(exc. VAT)
£0.101/unit
In Stock
TE Connectivity SM 100 Ω Wirewound Surface Mount Resistor ±5 % 3 W - SMW3100RJT
  • RS Stock No. 163-9711
  • Mfr. Part No. SMW3100RJT
Subtotal (1 reel of 1000 units)
£185.00(exc. VAT)
£0.185/unit
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