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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Antennas
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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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Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

163768 Products showing for Passive Components

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ROHM MCRS Series 91 kΩ, 0805 Thick Film Resistor ±1 % Surface 0.25 W - MCR10SEQPF9102
  • RS Stock No. 780-445P
  • Mfr. Part No. MCR10SEQPF9102
Subtotal 500 units (supplied on a reel)
SGD12.50(exc. GST)
SGD0.025/unit
In Stock
Wurth Elektronik, WE-LHMI Shielded Power Inductor 0.47 μH ±20 %
  • RS Stock No. 486-447
  • Mfr. Part No. 744373360047
Subtotal (1 unit)
SGD36.70(exc. GST)
SGD36.70/unit
In Stock
Yageo RT 1.2 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD071K2L
  • RS Stock No. 199-1440
  • Mfr. Part No. RT0603BRD071K2L
Subtotal (1 tape of 10 units)
SGD0.86(exc. GST)
SGD0.086/unit
Temporarily out of stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 35V dc, Surface Solder - EEEFPV100UAR 2000
  • RS Stock No. 107-1021
  • Mfr. Part No. EEEFPV100UAR
Subtotal (1 reel of 2000 units)
SGD388.00(exc. GST)
SGD0.194/unit
Currently unavailable
Wurth Elektronik, WE-MK, 0603 Unshielded Multilayer Surface Mount Inductor with a Ceramic Core, 100 nH Multilayer ±5 %
  • RS Stock No. 163-3369
  • Mfr. Part No. 744786110
Subtotal (1 reel of 4000 units)
SGD2,052.00(exc. GST)
SGD0.513/unit
In Stock
RS Better World
Vishay MMA 0204 10 kΩ, 0204 Thin Film Resistor 0.001 Surface 0.4 W - MMA02040E1002BB300
  • RS Stock No. 667-731P
  • Mfr. Part No. MMA02040E1002BB300
Subtotal 10 units (supplied on a continuous strip)
SGD8.96(exc. GST)
SGD0.896/unit
In Stock
Bourns PTV09 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole, PTV09A-4225F-B103
  • RS Stock No. 827-4990
  • Mfr. Part No. PTV09A-4225F-B103
Subtotal (1 unit)
SGD1.54(exc. GST)
SGD1.54/unit
In Stock
Bourns CR 3.3 kΩ, 0402 Thick Film Resistor 1 % Surface 1 W - CR0402-FX-3301GLF
  • RS Stock No. 630-491
  • Mfr. Part No. CR0402-FX-3301GLF
Subtotal (1 tape of 20 units)
SGD0.14(exc. GST)
SGD0.007/unit
In Stock
Wurth Elektronik 1 pF Multilayer Ceramic Capacitor, 50V, PCB
  • RS Stock No. 181-3419
  • Mfr. Part No. 885012006063
Subtotal (1 reel of 4000 units)
SGD148.00(exc. GST)
SGD0.037/unit
New product - Preorder today
Murata 3300 pF Multilayer Ceramic Capacitor, 50V dc, 0.1, Surface Mount
  • RS Stock No. 886-944
  • Mfr. Part No. GRM155R71H332KA01D
Subtotal (1 pack of 10 units)
SGD0.09(exc. GST)
SGD0.009/unit
Temporarily out of stock
Panasonic 10 μF Capacitor 50V dc, Radial, Through Hole - ECA1HHG100 Radial Lead
  • RS Stock No. 365-4240
  • Mfr. Part No. ECA1HHG100
Subtotal (1 pack of 5 units)
SGD1.17(exc. GST)
SGD0.234/unit
In Stock
Yageo RT 12 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W
  • RS Stock No. 199-1409P
  • Mfr. Part No. RT0603BRD0712KL
Subtotal 10 units (supplied on a continuous strip)
SGD0.82(exc. GST)
SGD0.082/unit
Temporarily out of stock
Panasonic 100 μF Electrolytic Capacitor 100V, Radial - ECA2AM101B Radial
  • RS Stock No. 759-078P
  • Mfr. Part No. ECA2AM101B
Subtotal 5 units (supplied as a tape)
SGD5.25(exc. GST)
SGD1.05/unit
In Stock
Littelfuse, ZA Metal Oxide Varistor 11.48 nF 10 A, Clamping 1.24 kV, Varistor 27 V, Radial Leaded Ceramic Disc
  • RS Stock No. 760-6949
  • Mfr. Part No. V27ZA4P
Subtotal (1 pack of 5 units)
SGD3.90(exc. GST)
SGD0.78/unit
In Stock
100 Ω, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Vishay, 64Y
  • RS Stock No. 154-2353
  • Mfr. Part No. M64Y101KB40
Subtotal (1 unit)
SGD3.30(exc. GST)
SGD3.30/unit
In Stock
Panasonic 10 μF Capacitor 50V dc, Surface Solder - EEEFT1H100AR 1000
  • RS Stock No. 729-6292
  • Mfr. Part No. EEEFT1H100AR
Subtotal (1 pack of 10 units)
SGD4.98(exc. GST)
SGD0.498/unit
In Stock
Panasonic 470 μF Capacitor 16V dc, Radial, Through Hole - ECA1CHG471 Radial Lead
  • RS Stock No. 365-4076
  • Mfr. Part No. ECA1CHG471
Subtotal (1 pack of 5 units)
SGD3.57(exc. GST)
SGD0.714/unit
In Stock
Panasonic 100 μF Electrolytic Capacitor 50V, Radial - EEUEB1H101SB Radial
  • RS Stock No. 759-109P
  • Mfr. Part No. EEUEB1H101SB
Subtotal 5 units (supplied as a tape)
SGD3.52(exc. GST)
SGD0.704/unit
In Stock
Amphenol Advanced Sensors NTC Thermistor, NTC Type 120 Ω
  • RS Stock No. 257-9509
  • Mfr. Part No. CL-90
Subtotal (1 pack of 2 units)
SGD9.32(exc. GST)
SGD4.66/unit
Currently unavailable
KOA RN73H 1 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W
  • RS Stock No. 187-7991P
  • Mfr. Part No. RN73H1JTTD1001B25
Subtotal 250 units (supplied on a reel)
SGD53.75(exc. GST)
SGD0.215/unit
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