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 include 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 passive component that can gather and hold a charge in a way that is similar to how a battery functions. This type of passive component is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to a power source. One plate accumulates a positive charge and the other plate accumulates a 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

Another type of passive component is the resistor. 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, it's 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 component 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; some examples would include windings from a transformer and inductors. It is useful because of its low electrical conductivity and high magnetic permeability.

Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic equipment and circuitry with added protection against the harmful effects of electricity surges, improving their longevity.

RS is a supplier of passive components with a wide variety of quality products from leading manufacturers across the world.

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

164247 Products showing for Passive Components

Sort By
7730 of 999+
Temporarily out of stock
Murata, LQW, 0603 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 16 nH ±2 % 550 mA Idc Q:40
  • RS Stock No. 785-5210
  • Mfr. Part No. LQW18AN16NG00D
Subtotal (10 units, in bags of 10)
PHP58.90(exc. VAT)
PHP5.89/unit
Currently unavailable
TE Connectivity SM 150 Ω, 5329 Wirewound Surface Mount Resistor ±5 % Surface 5 W - SMW5150RJT
  • RS Stock No. 664-1654
  • Mfr. Part No. SMW5150RJT
Subtotal (5 units, in packs of 5)
PHP278.32(exc. VAT)
PHP55.664/unit
In Stock
Bourns PWR163 2 Ω, TO-252 Thick Film Surface Mount Resistor ±1 % 25 W - PWR163S-25-2R00F
  • RS Stock No. 819-9953
  • Mfr. Part No. PWR163S-25-2R00F
Subtotal (1 unit)
PHP336.18(exc. VAT)
PHP336.18/unit
Temporarily out of stock
KEMET 39 pF Multilayer Ceramic Capacitor, 250V dc, ±5 %, Surface
  • RS Stock No. 769-7143
  • Mfr. Part No. CBR06C390JAGAC
Subtotal (100 units, in packs of 100)
PHP2,006.00(exc. VAT)
PHP20.06/unit
Last RS stock
TE Connectivity CPF-A 100 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - CPF-A-0805B100RE1
  • RS Stock No. 866-7279
  • Mfr. Part No. CPF-A-0805B100RE1
Subtotal (10 units, in bags of 10)
PHP166.45(exc. VAT)
PHP16.645/unit
Stocked by manufacturer
TE Connectivity 3-217 39 kΩ, 0102 Thin Film Resistor ±1 % 0.25 W - 3-2176314-2
  • RS Stock No. 795-363
  • Mfr. Part No. 3-2176314-2
Subtotal (3000 units, on reels of 3000)
PHP201,729.00(exc. VAT)
PHP67.243/unit
Temporarily out of stock
WIMA MKS4 Film Capacitor 470 nF 63V ac 100 V dc, Through Hole
  • RS Stock No. 171-0732
  • Mfr. Part No. MKS4D034703C00KJ00
Subtotal (1600 units, on reels of 1600)
PHP33,193.60(exc. VAT)
PHP20.746/unit
In Stock
Wurth Elektronik 35 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 3.5 A Idc, 80 mΩ Rdc 250V ac, WE-CMBNC
  • RS Stock No. 816-4795
  • Mfr. Part No. 7448040435
Subtotal (1 unit)
PHP820.78(exc. VAT)
PHP820.78/unit
Temporarily out of stock
KYOCERA AVX Thermistor, NTC Type 1 kΩ 6.3 mm 6.3 mm 4 mm
  • RS Stock No. 697-4512P
  • Mfr. Part No. ND06L00102KDC
Subtotal (5 units, supplied as a tape)
PHP408.32(exc. VAT)
PHP81.664/unit
Currently unavailable
KEMET 6.8 mH Nickel Zinc Ferrite Core Coil Inductor, 110 mA Idc, 14.5 Ω Rdc, SBC3
  • RS Stock No. 265-2400
  • Mfr. Part No. SBC3-682-111
Subtotal (4000 units, in boxes of 4000)
PHP160,664.00(exc. VAT)
PHP40.166/unit
Currently unavailable
Bourns, SRP7028AA, 7028 Shielded Power Inductor with a Metal Alloy Powder Core, 330 nH ±20 % 21 A Idc Q:8
  • RS Stock No. 247-6152
  • Mfr. Part No. SRP7028AA-R33M
Subtotal (1000 units, on reels of 1000)
PHP42,047.00(exc. VAT)
PHP42.047/unit
In Stock
Murata 68 pF Multilayer Ceramic Capacitor, 50V dc, ±2 %, Surface
  • RS Stock No. 185-2003
  • Mfr. Part No. GRM0335C1H680GA01D
Subtotal (1000 units, on reels of 1000)
PHP390.00(exc. VAT)
PHP0.39/unit
In Stock
Panasonic ERA 390 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB391V
  • RS Stock No. 566-541
  • Mfr. Part No. ERA3AEB391V
Subtotal (5 units, in packs of 5)
PHP29.75(exc. VAT)
PHP5.95/unit
Currently unavailable
Molex NTC Thermistor, NTC Type 10 kΩ 25 mm
  • RS Stock No. 230-2072
  • Mfr. Part No. 215272-2603
Subtotal (5 units, in packs of 5)
PHP322.34(exc. VAT)
PHP64.468/unit
In Stock
Vishay, IMSC1008AZ 2.2 μH 20% 2.45 A Idc
  • RS Stock No. 697-532
  • Mfr. Part No. IMSC1008AZER2R2M
Subtotal (1 unit, on tapes of 1)
PHP16.60(exc. VAT)
PHP16.60/tape
In Stock
Panasonic ERA8K 560 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8KEB5603V
  • RS Stock No. 259-6898
  • Mfr. Part No. ERA8KEB5603V
Subtotal (5 units, on tapes of 5)
PHP253.31(exc. VAT)
PHP50.662/unit
In Stock
Wurth Elektronik, WE-MAPI, 3020 Shielded Wirewound Surface Mount Inductor with a Magnetic Iron Alloy Core, 2.2 μH ±20 %
  • RS Stock No. 163-7444
  • Mfr. Part No. 74438336022
Subtotal (1000 units, on reels of 1000)
PHP57,854.00(exc. VAT)
PHP57.854/unit
In Stock
Bourns CR0603 49.9 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CR0603-FX-49R9ELF
  • RS Stock No. 458-586
  • Mfr. Part No. CR0603-FX-49R9ELF
Subtotal (10 units, on tapes of 10)
PHP3.46(exc. VAT)
PHP0.346/unit
In Stock
TE Connectivity 560 kΩ Metal Film Surface Mount Resistor 5 % 1 W - SMQF1560KJT
  • RS Stock No. 286-7377
  • Mfr. Part No. SMQF1560KJT
Subtotal (2000 units, on reels of 2000)
PHP48,034.00(exc. VAT)
PHP24.017/unit
In Stock
Bourns 51 μH 0.2 A Common Mode Choke 0.7 Ω 80V
  • RS Stock No. 247-5913P
  • Mfr. Part No. SRF3225TAC-510Y
Subtotal (10 units, supplied on a continuous strip)
PHP415.52(exc. VAT)
PHP41.552/unit
1
7730
8213
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links