Over 800,000 products available

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

170029 Products showing for Passive Components

Sort by
1810 of 999+
Temporarily out of stock
Wurth Elektronik, WE-KI, 0805C Unshielded Wirewound Surface Mount Inductor with a Ceramic Core, 22 nH ±5 % 500 mA Idc
  • RS Stock No. 163-4156
  • Mfr. Part No. 74476012C
Subtotal (2000 units, on reels of 2000)
£364.00(exc. VAT)
£0.182/unit
In Stock
Murata 18 pF Multilayer Ceramic Capacitor, 50V dc, 2 %, Surface
  • RS Stock No. 247-7793P
  • Mfr. Part No. GCM1555C1H180GA16D
Subtotal (100 units, supplied on a continuous strip)
£1.80(exc. VAT)
£0.018/unit
Temporarily out of stock
Wurth Elektronik 1 μF Capacitor 50V dc, Radial, Through Hole - 860160672002 Radial Lead
  • RS Stock No. 163-6841
  • Mfr. Part No. 860160672002
Subtotal (2000 units, in boxes of 2000)
£112.00(exc. VAT)
£0.056/unit
In Stock
Vishay MMA0204 12 Ω, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 678-7201P
  • Mfr. Part No. MMA02040C1209FB300
Subtotal (25 units, supplied on a continuous strip)
£0.925(exc. VAT)
£0.037/unit
Temporarily out of stock
Wurth Elektronik, WE-TPC, 3816 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 47 μH ±30 % 390 mA Idc
  • RS Stock No. 669-0198
  • Mfr. Part No. 744031470
Subtotal (5 units, in packs of 5)
£6.27(exc. VAT)
£1.254/unit
In Stock
Vishay CRCW 1.2 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 678-8888P
  • Mfr. Part No. CRCW04021K20FKED
Subtotal (50 units, supplied on a continuous strip)
£1.90(exc. VAT)
£0.038/unit
Currently unavailable
Wurth Elektronik WCAP-FTX2 Polypropylene Capacitor X2, ±10 %, 220 nF 630 V dc 275V ac, Through Hole
  • RS Stock No. 163-7731
  • Mfr. Part No. 890324026003CS
Subtotal (200 units, in bags of 200)
£61.00(exc. VAT)
£0.305/unit
In Stock
Bourns, SRP7050AA, 7050 Shielded Power Inductor with a Metal Alloy Powder Core, 22 μH ±20 % 4.2 A Idc Q:10
  • RS Stock No. 247-6175P
  • Mfr. Part No. SRP7050AA-220M
Subtotal (1 unit, supplied on a continuous strip)
£1.04(exc. VAT)
£1.04/unit
Last RS stock
Nichicon 47 μF Capacitor 35V dc, Surface Solder - UCJ1V470MCL1GS
  • RS Stock No. 243-7236
  • Mfr. Part No. UCJ1V470MCL1GS
Subtotal (10 units, on tapes of 10)
£2.66(exc. VAT)
£0.266/unit
Temporarily out of stock
Wurth Elektronik, WE-LQS, 3015 Shielded Wirewound Surface Mount Inductor 10 μH Semi Shielded ±20 % 840 mA Idc
  • RS Stock No. 163-4774
  • Mfr. Part No. 74404032100
Subtotal (2000 units, on reels of 2000)
£868.00(exc. VAT)
£0.434/unit
In Stock
Vishay CRCW 499 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW0805499KFKEA
  • RS Stock No. 679-1456
  • Mfr. Part No. CRCW0805499KFKEA
Subtotal (50 units, in packs of 50)
£0.75(exc. VAT)
£0.015/unit
In Stock
Murata 390 pF Multilayer Ceramic Capacitor, 50V dc, 1 %, Surface
  • RS Stock No. 247-7959P
  • Mfr. Part No. GRM1555C1H391FA01D
Subtotal (100 units, supplied on a continuous strip)
£2.90(exc. VAT)
£0.029/unit
Temporarily out of stock
Murata 10 μF Multilayer Ceramic Capacitor, 6.3V dc, 10 %, Surface
  • RS Stock No. 247-8115
  • Mfr. Part No. GRM21BR70J106KA73L
Subtotal (3000 units, on reels of 3000)
£63.00(exc. VAT)
£0.021/unit
Temporarily out of stock
Wurth Elektronik, WE-PD4 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 3.3 μH ±20 % 2 A Idc
  • RS Stock No. 163-3260
  • Mfr. Part No. 74455033
Subtotal (500 units, on reels of 500)
£620.00(exc. VAT)
£1.24/unit
Temporarily out of stock
Panasonic ERJ 270 mΩ, 0805 Surface Mount Resistor ±1 % 0.5 W - ERJ6DQFR27V
  • RS Stock No. 243-1974
  • Mfr. Part No. ERJ6DQFR27V
Subtotal (5000 units, on reels of 5000)
£160.00(exc. VAT)
£0.032/unit
Temporarily out of stock
Panasonic ERJ 3.3 kΩ, 0805 Thick Film Surface Mount Resistor ±0.5 % 0.1 W - ERJ6RBD3301V
  • RS Stock No. 169-0917
  • Mfr. Part No. ERJ6RBD3301V
Subtotal (5000 units, on reels of 5000)
£105.00(exc. VAT)
£0.021/unit
In Stock
Panasonic ERJ 33.2 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - ERJ2RKF33R2X
  • RS Stock No. 277-747
  • Mfr. Part No. ERJ2RKF33R2X
Subtotal (10 units, in bags of 10)
£0.13(exc. VAT)
£0.013/unit
In Stock
Vishay CRCW 620 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW0805620RFKEA
  • RS Stock No. 679-1601
  • Mfr. Part No. CRCW0805620RFKEA
Subtotal (50 units, in packs of 50)
£0.75(exc. VAT)
£0.015/unit
Currently unavailable
TE Connectivity SM 220 mΩ Wirewound Surface Mount Resistor ±5 % Surface 2 W - SMW2R22JT
  • RS Stock No. 647-5113
  • Mfr. Part No. SMW2R22JT
Subtotal (5 units, in packs of 5)
£1.83(exc. VAT)
£0.366/unit
In Stock
Bourns, CAT16 10 kΩ 1 % ISOL Resistor Array, 4 Resistors, 0.25 W total, 1206, Concave
  • RS Stock No. 243-7645P
  • Mfr. Part No. CAT16A-1002F4LF
Subtotal (10 units, supplied on a continuous strip)
£0.82(exc. VAT)
£0.082/unit
1
1810
8502
Results per page

Guides & Articles

LED Resistor Value Calculator
A calculator designed to help you understand what resistance value you require from your LED resistor, in order to ensure safety for your LED lighting.
Learn more
Resistors Guide
What are the different types of resistors? Learn more in our comprehensive guide.
Read more
Potentiometers Guide
Our potentiometers guide will help you understand their uses, how they work, the various types and characteristics.
Read more
A Guide to Voltage Controlled Oscillators
This guide covers voltage controlled oscillators, explaining what they are, the different types available, and examples of how they fit into a circuit.
Explore VCOs

Related links