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.

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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

164443 Products showing for Passive Components

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In Stock
Molex 213353-0200 T-Bar Multi-Band Antenna with UFL, IPEX Connector, 698 MHz, 8500 MHz, 4G (LTE)
  • RS Stock No. 246-9597
  • Mfr. Part No. 213353-0200
Subtotal (2 units, in packs of 2)
HK$84.50
HK$42.25/unit
Temporarily out of stock
TE Connectivity TRA6927M3PB-001 Stubby Multi-Band Antenna with Type N Female Connector, 698 MHz, 2700 MHz, 3G (UTMS), 4G
  • RS Stock No. 209-7296
  • Mfr. Part No. TRA6927M3PB-001
Subtotal (10 units, in bags of 10)
HK$6,773.70
HK$677.37/unit
In Stock
Wurth Elektronik 10 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:14 MHz, 56.7 A Idc, 1.2 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7082
  • Mfr. Part No. 7443763540100
Subtotal (6 units, in trays of 6)
HK$829.398
HK$138.233/unit
Temporarily out of stock
Vishay CRCW 0 mΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW08050000Z0EA
  • RS Stock No. 169-4494
  • Mfr. Part No. CRCW08050000Z0EA
Subtotal (5000 units, on reels of 5000)
HK$725.00
HK$0.145/unit
In Stock
RS PRO 8 Ω 1 W Miniature Speaker 23 mm Dia., 180 mm Lead Length 57.5 mm, 23mm
  • RS Stock No. 724-3112
Subtotal (1 unit)
HK$67.40
HK$67.40/unit
In Stock
WJ Furse, ESP SL Surge Suppressor Unit 36.7V Maximum Voltage Rating 20 kA Maximum Surge Current Twisted Pair Surge
  • RS Stock No. 788-6700
  • Mfr. Part No. 7TCA085400R0067 ESP SL30
Subtotal (1 unit)
HK$1,620.30
HK$1,620.30/unit
In Stock
TDK 2.2 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 788-2824
  • Mfr. Part No. C1005X5R1A225K050BC
Subtotal (25 units, in packs of 25)
HK$14.80
HK$0.592/unit
Temporarily out of stock
Panasonic 680 μF Polymer Capacitor 6.3V dc, POSCAP TPE Series
  • RS Stock No. 103-8714
  • Mfr. Part No. 6TPE680MI
Subtotal (2000 units, on reels of 2000)
HK$36,904.00
HK$18.452/unit
In Stock
Panasonic 150 μF Aluminium Polymer Capacitor 25V dc, Surface
  • RS Stock No. 665-160P
Subtotal (10 units, supplied on a continuous strip)
HK$171.60
HK$17.16/unit
Temporarily out of stock
Panasonic, ETQP4M Shielded Wirewound Surface Mount Inductor with a Metal Composite Core, 4.7 μH ±20 % 7.3 A Idc
  • RS Stock No. 238-3626
  • Mfr. Part No. ETQP4M4R7KFN
Subtotal (500 units, on reels of 500)
HK$1,848.00
HK$3.696/unit
In Stock
IQD 16 MHz Crystal Unit ±30 ppm Surface Mount 2-Pin 4.3 mm 11.4 mm 4.9mm
  • RS Stock No. 148-5362
  • Mfr. Part No. LFXTAL003237
Subtotal (50 units, in packs of 50)
HK$168.10
HK$3.362/unit
In Stock
Wurth Elektronik, WE-PD, 1050 Shielded Wirewound Surface Mount Inductor 220 μH ±20 % 1 A Idc
  • RS Stock No. 789-6971P
  • Mfr. Part No. 7447714221
Subtotal (1 unit, supplied on a continuous strip)
HK$17.70
HK$17.70/unit
In Stock
Abracon 25 MHz Crystal Unit ±10 ppm Surface Mount 4-Pin 0.8 mm 3.2 mm 2.5mm
  • RS Stock No. 187-6094
  • Mfr. Part No. ABM8-25.000MHz-10-B1U-T
Subtotal (10 units, in packs of 10)
HK$26.50
HK$2.65/unit
Last RS stock
RS PRO 1 GΩ Thick Film Resistor 2.5 W 5 %
  • RS Stock No. 175-4065
Subtotal (5 units, in packs of 5)
HK$129.60
HK$25.92/unit
In Stock
TDK Thermistor, NTC Type 10 Ω, Leaded and Coated Disks 18 mm 11 mm 6 mm
  • RS Stock No. 769-1861
  • Mfr. Part No. B57211P0100M301
Subtotal (5 units, in packs of 5)
HK$40.40
HK$8.08/unit
In Stock
KOA RK73H 47 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - RK73H1ETTP4702F
  • RS Stock No. 631-8492
  • Mfr. Part No. RK73H1ETTP4702F
Subtotal (100 units, in packs of 100)
HK$10.70
HK$0.107/unit
Currently unavailable
Murata 100 μF Multilayer Ceramic Capacitor, 6.3V dc, 20 %, Surface
  • RS Stock No. 260-8833
  • Mfr. Part No. GRM32EC70J107ME15K
Subtotal (10 units, on tapes of 10)
HK$25.90
HK$2.59/unit
Temporarily out of stock
KEMET C4BS Film Capacitor, ±5 %, 330 nF 3 kV dc 750V ac, Solder Lug
  • RS Stock No. 123-5131
  • Mfr. Part No. C4BSYBX3330ZALJ
Subtotal (1 unit)
HK$118.60
HK$118.60/unit
In Stock
Wurth Elektronik 20 mH Manganese Zinc Leaded Inductor, 1.5 A Idc, 270 mΩ Rdc 1500V, WE-CMB HC
  • RS Stock No. 489-0302
  • Mfr. Part No. 744823220
Subtotal (1 unit)
HK$37.20
HK$37.20/unit
In Stock
WJ Furse, ESP M1 Surge Suppressor Unit 280V Maximum Voltage Rating 80 kA Maximum Surge Current Mains Surge Protector
  • RS Stock No. 788-6757
  • Mfr. Part No. 7TCA085460R0089 ESP 240M1
Subtotal (1 unit)
HK$5,422.20
HK$5,422.20/unit
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