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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159957 Products showing for Passive Components

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Arcol Ohmite 1.21 kΩ Metal Film Resistor 0.25 W 0.1 % MRA02071K21BTA015
  • RS Stock No. 487-6176P
  • Mfr. Part No. MRA02071K21BTA015
Subtotal (5 units, supplied as a tape)
MYR17.09
MYR3.418/unit
In Stock
Sifam 17 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft D Shaped, 3/07/DRN170 006 BLACK
  • RS Stock No. 252-7020
  • Mfr. Part No. 3/07/DRN170 006 BLACK
Subtotal (5 units, in packs of 5)
MYR21.23
MYR4.246/unit
In Stock
KOA 2.7 kΩ Metal Film Resistor 0.25 W 1 % MF1/4CC2701F
  • RS Stock No. 463-9488
  • Mfr. Part No. MF1/4CC2701F
Subtotal (100 units, in bags of 100)
MYR105.70
MYR1.057/unit
In Stock
Panasonic 47 μF Capacitor 200V dc, Radial Radial Lead
  • RS Stock No. 365-4600P
  • Mfr. Part No. ECA2DHG470
Subtotal (5 units, supplied in a bag)
MYR21.45
MYR4.29/unit
Temporarily out of stock
TDK B32529 Polyester Capacitor (PET) 4.7 nF 63V ac 63 V dc, Through Hole 2
  • RS Stock No. 241-6556
  • Mfr. Part No. B32529C0472K000
Subtotal (2000 units, in boxes of 2000)
MYR734.00
MYR0.367/unit
In Stock
Abracon 5 MHz Crystal 30 ppm Surface Mount 3.3 mm 11.4 mm 4.7mm
  • RS Stock No. 232-7214P
  • Mfr. Part No. ABLS2-5.000MHZ-D4Y-T
Subtotal (50 units, supplied on a continuous strip)
MYR52.25
MYR1.045/unit
In Stock
Abracon 11.0592 MHz Crystal Unit ±50 ppm Surface Mount 4-Pin 1.3 mm 5 mm 3.2mm
  • RS Stock No. 241-3014P
  • Mfr. Part No. ABM3C-11.0592MHZ-D4Y-T
Subtotal (10 units, supplied on a continuous strip)
MYR36.29
MYR3.629/unit
In Stock
Abracon, 24MHz Clock Oscillator Crystal Oscillator HCMOS, TTL, 4-Pin Surface Mount
  • RS Stock No. 240-3587P
  • Mfr. Part No. ASFL1-24.000MHZ-L-T
Subtotal (5 units, supplied on a continuous strip)
MYR30.45
MYR6.09/unit
In Stock
Vishay 200 kΩ Metal Film Metal Film Resistor 2 W 5 %
  • RS Stock No. 251-3848P
  • Mfr. Part No. PR02000202003JR500
Subtotal (5 units, supplied on a continuous strip)
MYR7.84
MYR1.568/unit
Temporarily out of stock
TE Connectivity SMQ 10 mΩ, 0805 Thick Film Surface Mount Resistor 1 % Solder 0.13 W - RLC73M2AR10FTDF
  • RS Stock No. 286-8874
  • Mfr. Part No. RLC73M2AR10FTDF
Subtotal (1000 units, on reels of 1000)
MYR210.00
MYR0.21/unit
Temporarily out of stock
Eaton, SLP Surge Suppressor Unit 18V Maximum Voltage Rating 20 kA Maximum Surge Current Signal & Data Line Protector
  • RS Stock No. 618-9761
  • Mfr. Part No. SLP16D/RS
Subtotal (1 unit)
MYR1,400.78
MYR1,400.78/unit
In Stock
Vishay 5.6 kΩ Metal Film Metal Film Resistor 2 W 5 %
  • RS Stock No. 251-3933P
  • Mfr. Part No. PR02000205601JR500
Subtotal (5 units, supplied on a continuous strip)
MYR7.50
MYR1.50/unit
Last RS stock
TE Connectivity 3503 90.9 Ω, 1206 Thin Film Surface Mount Resistor ±1 % Surface 2 W
  • RS Stock No. 252-7651P
  • Mfr. Part No. 3503G2B90R9FTDF
Subtotal (1 unit, supplied on a continuous strip)
MYR7.14
MYR7.14/unit
Temporarily out of stock
Panasonic ERJ 10 mΩ, 1206 Thick Film Surface Mount Fixed Resistor ±1 % 0.66 W - ERJPM8F1005V
  • RS Stock No. 250-2942
  • Mfr. Part No. ERJPM8F1005V
Subtotal (5000 units, on reels of 5000)
MYR1,145.00
MYR0.229/unit
In Stock
Wurth Elektronik, WE-TPC, 3816 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±30 % 740 mA Idc
  • RS Stock No. 617-0880P
  • Mfr. Part No. 744031100
Subtotal (1 unit, supplied on a continuous strip)
MYR5.53
MYR5.53/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 242-7412
  • Mfr. Part No. C2012X8R1H104K125AA
Subtotal (2000 units, on reels of 2000)
MYR308.00
MYR0.154/unit
In Stock
RS PRO 220 kΩ, 1206 Thick Film Resistor ±1 % 0.25 W - RSPHVR06FTEV2203
  • RS Stock No. 256-7751
Subtotal (25 units, on tapes of 25)
MYR19.00
MYR0.76/unit
In Stock
KOA 75 kΩ Metal Film Resistor 0.25 W 1 % MF1/4CC7502F
  • RS Stock No. 463-9876
  • Mfr. Part No. MF1/4CC7502F
Subtotal (100 units, in bags of 100)
MYR43.40
MYR0.434/unit
In Stock
RS PRO 3 A 250V ac 50Hz, 60 Hz, Chassis EMI Filter, Fast-On 1 Phase
  • RS Stock No. 237-8718
Subtotal (80 units, in boxes of 80)
MYR5,496.80
MYR68.71/unit
In Stock
KEMET R46 Film Capacitor X2, ±10 %, 10 nF 310 V dc 310V ac, Through Hole
  • RS Stock No. 441-9587
  • Mfr. Part No. R463I21005001K
Subtotal (10 units, in packs of 10)
MYR13.30
MYR1.33/unit
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