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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

682 of 999+
Temporarily out of stock
Bourns, PV Varistor 180 pF 10 A, Clamping 650 V, Varistor 390 V, 4032
  • RS Stock No. 204-8738P
  • Mfr. Part No. PV250K4032R2
Subtotal 10 units (supplied on a continuous strip)
£3.43(exc. VAT)
£0.343/unit
In Stock
QANTEK 12 MHz Crystal ±20 ppm Surface Mount 4-Pin 1.1 mm 3.2 mm 2.5mm
  • RS Stock No. 173-4374
  • Mfr. Part No. QC3CA12.0000F12B23R
Subtotal (1 reel of 1000 units)
£168.00(exc. VAT)
£0.168/unit
Being discontinued
RS PRO, 40 Ω 50 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 185-2389
Subtotal (1 unit)
£7.24(exc. VAT)
£7.24/unit
Temporarily out of stock
TE Connectivity 2.49 kΩ Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 701-7519P
  • Mfr. Part No. H82K49BYA
Subtotal 5 units (supplied in a box)
£8.54(exc. VAT)
£1.708/unit
In Stock
Vishay, VDRS Metal Oxide Varistor 440 pF 50 A, Clamping 710 V, Varistor 430 V, Disc
  • RS Stock No. 179-3835
  • Mfr. Part No. VDRS14T275BSE
Subtotal (1 box of 100 units)
£30.80(exc. VAT)
£0.308/unit
Being discontinued
Arcol Ohmite TKH 5 Ω, TO-252 Thick Film Surface Mount Resistor ±1 % Surface 45 W - TKH45P5R00FE-TR
  • RS Stock No. 210-4707
  • Mfr. Part No. TKH45P5R00FE-TR
Subtotal (1 tape of 5 units)
£34.92(exc. VAT)
£6.984/unit
Temporarily out of stock
Vishay Potentiometer Knob 25.4 mm, 11A11B10 8 in, Silver
  • RS Stock No. 329-018
  • Mfr. Part No. 11A11B10
Subtotal (1 unit)
£43.30(exc. VAT)
£43.30/unit
In Stock
Panasonic 2700 μF Capacitor 10V dc, Radial, Through Hole - EEUFC1A272 Radial Lead
  • RS Stock No. 571-145
  • Mfr. Part No. EEUFC1A272
Subtotal (1 pack of 5 units)
£6.10(exc. VAT)
£1.22/unit
In Stock
KEMET 1 mH 15 A Common Mode Choke 12 mΩ 250V
  • RS Stock No. 863-3847P
  • Mfr. Part No. SC-15-10J
Subtotal 1 unit (supplied in a box)
£6.08(exc. VAT)
£6.08/unit
Stock information currently inaccessible
Vishay CRCW 220 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRCW0603220RFKEAHP
  • RS Stock No. 170-2000
  • Mfr. Part No. CRCW0603220RFKEAHP
Subtotal (1 reel of 5000 units)
£70.00(exc. VAT)
£0.014/unit
In Stock
RS PRO NP23 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 842-7125P
Subtotal 1 unit (supplied in a bag)
£10.25(exc. VAT)
£10.25/unit
Last RS stock
Vishay MCT 330 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.12 W - MCT06030C3303FP500
  • RS Stock No. 188-5972
  • Mfr. Part No. MCT06030C3303FP500
Subtotal (1 tape of 100 units)
£0.70(exc. VAT)
£0.007/unit
Temporarily out of stock
Dehn, DG Modular Surge Protector 1000V Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 808-7932
  • Mfr. Part No. DG YPV SCI 1000 FM
Subtotal (1 unit)
£4.23(exc. VAT)
£4.23/unit
In Stock
KEMET 270 μF Surface Polymer Capacitor, 40.2V dc
  • RS Stock No. 209-5431
  • Mfr. Part No. A768MS277M1VLAV022
Subtotal (1 tape of 2 units)
£3.90(exc. VAT)
£1.95/unit
In Stock
Vishay KP 1830 Film Capacitor, ±1 %, 3.3 nF 630 V dc 40V ac, Through Hole
  • RS Stock No. 117-836
  • Mfr. Part No. KP1830233631
Subtotal (1 pack of 10 units)
£16.69(exc. VAT)
£1.669/unit
Last RS stock
TE Connectivity CRGH 12 Ω, 2512 Thick Film Surface Mount Resistor ±5 % Surface 2 W - CRGH2512J12R
  • RS Stock No. 807-1334
  • Mfr. Part No. CRGH2512J12R
Subtotal (1 bag of 10 units)
£0.76(exc. VAT)
£0.076/unit
In Stock
Abracon Patch Telemetry Antenna with SMA Connector, High Frequency RFID
  • RS Stock No. 250-5240
  • Mfr. Part No. APAE915R2540ABDB1-T
Subtotal (1 box of 250 units)
£685.00(exc. VAT)
£2.74/unit
In Stock
Panasonic ERA 150 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.063 W - ERA2AEB151X
  • RS Stock No. 782-679P
  • Mfr. Part No. ERA2AEB151X
Subtotal 10 units (supplied on a continuous strip)
£0.36(exc. VAT)
£0.036/unit
Temporarily out of stock
Littelfuse, ZA Metal Oxide Varistor 2590 pF 100 A, Clamping 1240 V, Varistor 6 to 825 V, Radial Leaded Ceramic Disc
  • RS Stock No. 878-1993
  • Mfr. Part No. V47ZA3P
Subtotal (1 pack of 100 units)
£23.80(exc. VAT)
£0.238/unit
In Stock
RS PRO 100 μF Capacitor 50V dc
  • RS Stock No. 276-6095
Subtotal (1 unit)
£0.38(exc. VAT)
£0.38/unit
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