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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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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163575 Products showing for Passive Components

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ROHM ESR25 24 kΩ, 1210 Thick Film Resistor ±1 % 0.66 W
  • RS Stock No. 263-7443P
  • Mfr. Part No. ESR25JZPF2402
Subtotal 10 units (supplied on a continuous strip)
MYR13.82
MYR1.382/unit
In Stock
OKW 23 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft Round Shaft, A2523060
  • RS Stock No. 283-2037
  • Mfr. Part No. A2523060
Subtotal (1 unit)
MYR36.73
MYR36.73/unit
In Stock
Wurth Elektronik Openable, Diameter 27 mm Ferrite Sleeve, Apertures: 1 Key 20 mm 44 mm 55 mm, For Internal, External
  • RS Stock No. 163-3994
  • Mfr. Part No. 7427155
Subtotal (1 box of 30 units)
MYR844.50
MYR28.15/unit
Temporarily out of stock
Panasonic ERJPC3 649 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B6490V
  • RS Stock No. 789-931
  • Mfr. Part No. ERJPC3B6490V
Subtotal (1 tape of 10 units)
MYR2.76
MYR0.276/unit
In Stock
TDK 1 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 242-7398
  • Mfr. Part No. C2012X7R1E105K125AB
Subtotal (1 pack of 50 units)
MYR21.85
MYR0.437/unit
Last RS stock
TE Connectivity TLR 500 Ω, 2512 Metal Strip Surface Mount Resistor ±1 % Surface 2 W - TLR3A20DR0005FTDG
  • RS Stock No. 771-7799
  • Mfr. Part No. TLR3A20DR0005FTDG
Subtotal (1 pack of 5 units)
MYR20.07
MYR4.014/unit
In Stock
Wurth Elektronik, WE-KI Power Inductor 1.9 nH 5 % Q:16
  • RS Stock No. 485-349P
  • Mfr. Part No. 744765019A
Subtotal 20 units (supplied on a continuous strip)
MYR33.82
MYR1.691/unit
In Stock
Panasonic ERJPA3 75 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W
  • RS Stock No. 862-7066P
  • Mfr. Part No. ERJPA3F75R0V
Subtotal 100 units (supplied on a continuous strip)
MYR16.50
MYR0.165/unit
In Stock
Yageo 4.7 kΩ Carbon Film Carbon Film Fixed Resistor 0.5 W 5 % CFR-50JT-52-4K7
  • RS Stock No. 199-1885
  • Mfr. Part No. CFR-50JT-52-4K7
Subtotal (1 tape of 100 units)
MYR13.20
MYR0.132/unit
In Stock
Vishay, IHLP, EK Shielded Surface Mount Inductor with a Metal Composite Core, 560 nH ±20 % 61 A Idc
  • RS Stock No. 565-141P
  • Mfr. Part No. IHLP6767GZEKR56M11
Subtotal 2 units (supplied on a continuous strip)
MYR43.65
MYR21.825/unit
Last RS stock
TE Connectivity Silicone Shielding Sheet 1 m x 225mm x 1.6 mm
  • RS Stock No. 272-9208
  • Mfr. Part No. 470-0016-2250-10000
Subtotal (1 unit)
MYR1,061.63
MYR1,061.63/unit
Temporarily out of stock
Panasonic ERJPC6 4020 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6D4021V
  • RS Stock No. 788-929
  • Mfr. Part No. ERJPC6D4021V
Subtotal (1 tape of 10 units)
MYR3.13
MYR0.313/unit
Temporarily out of stock
Nidec Components 12V dc 360 ppr Pulse Optical Encoder with a 4 mm Flat Shaft, Wire
  • RS Stock No. 244-4101
  • Mfr. Part No. RE30E-360-213-1
Subtotal (1 box of 5 units)
MYR1,405.10
MYR281.02/unit
In Stock
Abracon 0.22 F Supercapacitor -20 % to +150 % Tolerance, ADCC-S05R5S 5.5V dc, Through Hole
  • RS Stock No. 266-457
  • Mfr. Part No. ADCC-S05R5SA224WB
Subtotal (1 pack of 5 units)
MYR54.55
MYR10.91/unit
Currently unavailable
TE Connectivity RH73 50 mΩ, 0805 Thick Film Surface Mount Resistor ±20 % Surface 0.13 W - RH73W2A50MMTN
  • RS Stock No. 294-5056P
  • Mfr. Part No. RH73W2A50MMTN
Subtotal 5 units (supplied on a continuous strip)
MYR74.71
MYR14.942/unit
Temporarily out of stock
Murata, LQH, 2525 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 47 μH ±20 % 760 mA Idc
  • RS Stock No. 725-5386
  • Mfr. Part No. LQH66SN470M03L
Subtotal (1 unit)
MYR9.55
MYR9.55/unit
In Stock
Cressall HP1000-33R-F, 33 Ω 1 kW Wirewound Chassis Mount Resistor ±10 %
  • RS Stock No. 161-7595
  • Mfr. Part No. HP1000-33R-F
Subtotal (1 unit)
MYR543.76
MYR543.76/unit
In Stock
Arcol Ohmite HS10 39R J, 39 Ω 10 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 107-3380P
  • Mfr. Part No. HS10 39R J
Subtotal 1 unit (supplied in a bag)
MYR21.34
MYR21.34/unit
In Stock
Panasonic, ETQP3M Shielded Wirewound Surface Mount Inductor with a Metal Composite Core, 1.5 μH ±20 % 9.1 A Idc
  • RS Stock No. 238-3575
  • Mfr. Part No. ETQP3M1R5KVN
Subtotal (1 tape of 10 units)
MYR29.89
MYR2.989/unit
In Stock
KEMET 560 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 801-5170P
  • Mfr. Part No. C0402C561J5GACTU
Subtotal 25 units (supplied on a continuous strip)
MYR4.275
MYR0.171/unit
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