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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163920 Products showing for Passive Components

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Abracon 25 MHz Crystal Unit ±20 ppm Surface Mount 4-Pin 1.2 mm 6 mm 3.5mm
  • RS Stock No. 171-2878P
  • Mfr. Part No. ABMM2-25.000MHZ-E2-T
Subtotal 10 units (supplied on a continuous strip)
SGD15.90(exc. GST)
SGD1.59/unit
In Stock
Wurth Elektronik, WE-PD, 7332 Shielded Surface Mount Inductor 39 μH ±20 % 1.03 A Idc
  • RS Stock No. 798-1616
  • Mfr. Part No. 7447789139
Subtotal (1 unit)
SGD3.44(exc. GST)
SGD3.44/unit
In Stock
Wurth Elektronik, WE-PD, 7345 Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Ferrite Core, 680 μH ±20 %
  • RS Stock No. 185-7325P
  • Mfr. Part No. 7447773681
Subtotal 1 unit (supplied on a continuous strip)
SGD2.90(exc. GST)
SGD2.90/unit
Stocked by manufacturer
Siemens, 6SE6400-3 480V 38 A Sine Wave Filter
  • RS Stock No. 287-3510
  • Mfr. Part No. 6SE6400-3TC03-8DD0
Subtotal (1 unit)
SGD1,542.57(exc. GST)
SGD1,542.57/unit
Last RS stock
TE Connectivity SMQ 220 Ω Wirewound Surface Mount Resistor 5 % Surface 2 W - SMQW2220RJT
  • RS Stock No. 286-7563
  • Mfr. Part No. SMQW2220RJT
Subtotal (1 pack of 5 units)
SGD4.94(exc. GST)
SGD0.988/unit
In Stock
Panasonic ERJPC3 26.1 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B2612V
  • RS Stock No. 789-007P
  • Mfr. Part No. ERJPC3B2612V
Subtotal 10 units (supplied on a continuous strip)
SGD0.82(exc. GST)
SGD0.082/unit
Temporarily out of stock
KEMET MMK Film Capacitor, ±10 %, 4.7 μF 63 V dc 40V ac, Through Hole
  • RS Stock No. 173-4977
  • Mfr. Part No. MMK22.5475K63D13L4TRAY
Subtotal (1 tray of 234 units)
SGD719.55(exc. GST)
SGD3.075/unit
In Stock
Panasonic 470 μF Capacitor 50V dc, Radial - EEUFC1H471 Radial Lead
  • RS Stock No. 572-328
  • Mfr. Part No. EEUFC1H471
Subtotal (1 pack of 5 units)
SGD10.75(exc. GST)
SGD2.15/unit
In Stock
TE Connectivity SMQ 1 Ω, 0805 Thick Film Surface Mount Resistor 1 % Solder 0.13 W - RLC73K2A1R0FTDF
  • RS Stock No. 286-8869
  • Mfr. Part No. RLC73K2A1R0FTDF
Subtotal (1 reel of 1000 units)
SGD63.00(exc. GST)
SGD0.063/unit
In Stock
ROHM MCRS Series 75 kΩ, 0402 Thick Film Resistor ±1 % Surface 0.1 W - MCR01SMQPF7502
  • RS Stock No. 780-534
  • Mfr. Part No. MCR01SMQPF7502
Subtotal (1 tape of 1000 units)
SGD15.00(exc. GST)
SGD0.015/unit
In Stock
Vishay 20 Ω Thick Film Resistor 30 W 1 %
  • RS Stock No. 822-0091P
  • Mfr. Part No. LTO030F20R00FTE3
Subtotal 1 unit (supplied in a tube)
SGD6.86(exc. GST)
SGD6.86/unit
In Stock
Nidec Components 5V dc 50 ppr Pulse Optical Encoder with a 8 mm Round Shaft, Panel, Wire
  • RS Stock No. 244-4125
  • Mfr. Part No. REC20D-50-201-1
Subtotal (1 unit)
SGD37.71(exc. GST)
SGD37.71/unit
Currently unavailable
Panasonic ERA 22.1 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W
  • RS Stock No. 892-1312
  • Mfr. Part No. ERA3ARB2212V
Subtotal (1 bag of 100 units)
SGD71.60(exc. GST)
SGD0.716/unit
In Stock
Arcol Ohmite HS50 6R8 J, 6.8 Ω 50 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 160-922P
  • Mfr. Part No. HS50 6R8 J
Subtotal 1 unit (supplied in a bag)
SGD8.88(exc. GST)
SGD8.88/unit
In Stock
KEMET 2.2 μF MnO2 Tantalum Capacitor 20V dc, Surface, T491 Series
  • RS Stock No. 177-5123
  • Mfr. Part No. T491A225K020AT
Subtotal (1 reel of 2000 units)
SGD418.00(exc. GST)
SGD0.209/unit
In Stock
KEMET 2.2 mH Nickel Zinc Ferrite Coil Inductor, 210 mA Idc, 4.97 Ω Rdc, SBC4
  • RS Stock No. 265-2425
  • Mfr. Part No. SBC4-222-211
Subtotal (1 unit)
SGD1.48(exc. GST)
SGD1.48/unit
In Stock
TE Connectivity 27 10 kΩ Rotary Potentiometer 1-Turns 2-Gang Panel Mount
  • RS Stock No. 168-364P
  • Mfr. Part No. 27ESA103MMF50N
Subtotal 1 unit (supplied in a box)
SGD14.24(exc. GST)
SGD14.24/unit
Last RS stock
Arcol Ohmite 50 mΩ Metal Strip Metal Film Fixed Resistor 1 W 1 % MSR-1 R05 F
  • RS Stock No. 487-9068
  • Mfr. Part No. MSR-1 R05 F
Subtotal (1 pack of 5 units)
SGD11.07(exc. GST)
SGD2.214/unit
In Stock
Arcol Ohmite HS50 10K J, 10 kΩ 50 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 166-4210
  • Mfr. Part No. HS50 10K J
Subtotal (1 bag of 20 units)
SGD131.84(exc. GST)
SGD6.592/unit
Temporarily out of stock
Wurth Elektronik 47 μH Ferrite Leaded Inductor, Max SRF:9 MHz, 3 A Idc, 88 mΩ Rdc, WE-TIS
  • RS Stock No. 163-4148
  • Mfr. Part No. 7447471470
Subtotal (1 tray of 110 units)
SGD303.05(exc. GST)
SGD2.755/unit
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