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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EMI Filters & Protection
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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162781 Products showing for Passive Components

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8065 / 999+
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Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite 20 mm, For: Multiconductor Wire, Wrapping Cable, Wire,
  • RS Stock No. 124-1552
  • Mfr. Part No. 7427014
Subtotal (1 pack of 5 units)
MYR77.14
MYR15.428/unit
Currently unavailable
KEMET R75 Polypropylene Capacitor, 5 %, 15 μF 400 V dc 220V ac, Through Hole
  • RS Stock No. 212-6636P
  • Mfr. Part No. R75MW515050H3J
Subtotal 1 unit (supplied in a tray)
MYR51.62
MYR51.62/unit
Last RS stock
Nichicon 47 μF Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 762-1742P
  • Mfr. Part No. UBT1H470MPD8
Subtotal 5 units (supplied in a bag)
MYR14.16
MYR2.832/unit
Currently unavailable
IQD, 106.25MHz XO Oscillator, ±50 ppm HCMOS, 4-Pin SMD LFSPXO009439
  • RS Stock No. 173-2876
  • Mfr. Part No. LFSPXO009439
Subtotal (1 bag of 100 units)
MYR1,265.30
MYR12.653/unit
In Stock
Panasonic 22 μF Capacitor 10V dc, Through Hole Radial Lead
  • RS Stock No. 919-3697
  • Mfr. Part No. EEAFC1A220
Subtotal (1 bag of 200 units)
MYR106.20
MYR0.531/unit
In Stock
Arcol Ohmite HS15 15R J, 15 Ω 15 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 160-455
  • Mfr. Part No. HS15 15R J
Subtotal (1 unit)
MYR20.27
MYR20.27/unit
Temporarily out of stock
TDK B32021 Polypropylene Film Capacitor 4.7 nF 300V ac 300 V dc, Through Hole 2
  • RS Stock No. 241-6495
  • Mfr. Part No. B32021A3472M189
Subtotal (1 box of 1300 units)
MYR1,482.00
MYR1.14/unit
In Stock
Vishay 4.7 Ω Wirewound Resistor 3 W 1 % RLP034R700FB15
  • RS Stock No. 788-8084P
  • Mfr. Part No. RLP034R700FB15
Subtotal 5 units (supplied in a box)
MYR438.63
MYR87.726/unit
Currently unavailable
Rubycon 47 μF Capacitor 25V dc, Radial, Through Hole - 25YXF47M5X11 Solder
  • RS Stock No. 191-8249
  • Mfr. Part No. 25YXF47M5X11
Subtotal (1 pack of 5 units)
MYR6.58
MYR1.316/unit
In Stock
Vishay 150 kΩ Thin Film Resistor 0.4 W 1 % MBA02040C1503FC100
  • RS Stock No. 151-454
  • Mfr. Part No. MBA02040C1503FC100
Subtotal (1 pack of 100 units)
MYR122.60
MYR1.226/unit
Temporarily out of stock
onsemi 250MHz, Surface EMI Filter, Surface Mount
  • RS Stock No. 805-4402
  • Mfr. Part No. NUF4403MNT1G
Subtotal (1 tape of 25 units)
MYR49.00
MYR1.96/unit
In Stock
Murata Power Solutions, 5000 Shielded Surface Mount Common Mode Choke 1 mH -30 to 50 % 700 mA Idc
  • RS Stock No. 715-7087
  • Mfr. Part No. 50105C
Subtotal (1 unit)
MYR6.96
MYR6.96/unit
In Stock
Panasonic ERJ 22 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ3EKF2202V
  • RS Stock No. 176-3483
  • Mfr. Part No. ERJ3EKF2202V
Subtotal (1 reel of 1000 units)
MYR49.00
MYR0.049/unit
Currently unavailable
Vishay TNPW 0.2 mΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.2 W - TNPW0805200KBEEA
  • RS Stock No. 262-0821P
  • Mfr. Part No. TNPW0805200KBEEA
Subtotal 10 units (supplied on a continuous strip)
MYR18.24
MYR1.824/unit
Last RS stock
Nichicon 330 μF Capacitor 35V dc, Surface Solder - UCD1V331MNL1GS
  • RS Stock No. 715-1338
  • Mfr. Part No. UCD1V331MNL1GS
Subtotal (1 pack of 5 units)
MYR18.38
MYR3.676/unit
Temporarily out of stock
Yageo 22 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 200-6606
  • Mfr. Part No. CC0603KRX7R9BB223
Subtotal (1 reel of 4000 units)
MYR184.00
MYR0.046/unit
In Stock
Yageo 100 nF Multilayer Ceramic Capacitor, 50V dc, -20 to 80 %, Surface
  • RS Stock No. 200-6633P
  • Mfr. Part No. CC0603ZRY5V9BB104
Subtotal 500 units (supplied on a reel)
MYR31.00
MYR0.062/unit
Temporarily out of stock
RS PRO 98 dB Panel Mount Single Tone Internal 43.5 mm Piezo Buzzer Component 30 V ac/dc Min 120V ac/dc Max
  • RS Stock No. 171-0897
Subtotal (1 tray of 30 units)
MYR1,602.63
MYR53.421/unit
In Stock
Nichicon 470 μF Aluminium Electrolytic Capacitor 16V dc, Radial, Through Hole - UHE1C471MPD6 Radial Lead
  • RS Stock No. 566-966
  • Mfr. Part No. UHE1C471MPD6
Subtotal (1 bag of 20 units)
MYR53.08
MYR2.654/unit
In Stock
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite 14 mm, For: EMI Suppression 12.6 mm ID 23.5 mm OD
  • RS Stock No. 124-1544
  • Mfr. Part No. 7427012
Subtotal (1 pack of 10 units)
MYR57.10
MYR5.71/unit
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