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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Panasonic ERJPC3 3.48 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D3481V
  • RS Stock No. 785-085P
  • Mfr. Part No. ERJPC3D3481V
Subtotal 10 units (supplied on a continuous strip)
SGD0.73(exc. GST)
SGD0.073/unit
In Stock
Yageo SR 10 Ω, 0402 Thick Film Surface Mount Resistor ±5 % 0.06 W
  • RS Stock No. 197-8376P
  • Mfr. Part No. SR0402JR-0710RL
Subtotal 100 units (supplied on a continuous strip)
SGD10.20(exc. GST)
SGD0.102/unit
Currently unavailable
Panasonic ERJPC3 4.32 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D4321V
  • RS Stock No. 785-097P
  • Mfr. Part No. ERJPC3D4321V
Subtotal 10 units (supplied on a continuous strip)
SGD0.73(exc. GST)
SGD0.073/unit
In Stock
Wurth Elektronik, WE-CBF, 0805 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, Multilayer 200 mA Idc
  • RS Stock No. 124-1864
  • Mfr. Part No. 742792093
Subtotal (1 pack of 50 units)
SGD14.85(exc. GST)
SGD0.297/unit
Currently unavailable
Vishay CRHA 30 mΩ, 1206 Thick Film Resistor ±1 % Surface 0.3 W
  • RS Stock No. 211-9387P
  • Mfr. Part No. CRHA1206AF30M0FKEF
Subtotal 5 units (supplied on a continuous strip)
SGD13.54(exc. GST)
SGD2.708/unit
Currently unavailable
ROHM ESR10 430 Ω, 0805 Thick Film Resistor ±1 % 0.4 W
  • RS Stock No. 262-9336P
  • Mfr. Part No. ESR10EZPF4300
Subtotal 100 units (supplied on a continuous strip)
SGD5.70(exc. GST)
SGD0.057/unit
In Stock
Schurter, FMAC RAIL 3 A 480V ac 50Hz, 60 Hz, DIN Rail RFI Filter, Screw 3 Phase
  • RS Stock No. 782-4140
  • Mfr. Part No. FMAC-3RYB-0310
Subtotal (1 unit)
SGD82.26(exc. GST)
SGD82.26/unit
In Stock
Vishay MMA0204 1.2 kΩ, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 678-7182P
  • Mfr. Part No. MMA02040C1201FB300
Subtotal 25 units (supplied on a continuous strip)
SGD1.68(exc. GST)
SGD0.067/unit
In Stock
KOA RN73R 1.8 kΩ, 1206 Metal Film Surface Mount Resistor ±0.1 % 0.25 W
  • RS Stock No. 253-3383P
  • Mfr. Part No. RN73R2BTTD1801B25
Subtotal 5 units (supplied on a continuous strip)
SGD1.95(exc. GST)
SGD0.39/unit
Currently unavailable
KEMET C4AF Polypropylene Capacitor, 10 %, 4.7 μF 250V ac, PCB
  • RS Stock No. 207-8822
  • Mfr. Part No. C4AF1BU4470T11K
Subtotal (1 box of 72 units)
SGD189.50(exc. GST)
SGD2.632/unit
Temporarily out of stock
Yageo RT 100 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W
  • RS Stock No. 199-1370P
  • Mfr. Part No. RT0603BRB07100KL
Subtotal 10 units (supplied on a continuous strip)
SGD4.90(exc. GST)
SGD0.49/unit
Currently unavailable
ROHM ESR10 270 kΩ, 0805 Thick Film Resistor ±1 % 0.4 W
  • RS Stock No. 262-9304P
  • Mfr. Part No. ESR10EZPF2703
Subtotal 100 units (supplied on a continuous strip)
SGD7.80(exc. GST)
SGD0.078/unit
In Stock
TE Connectivity SMQ 68 kΩ Metal Film Surface Mount Resistor 5 % Surface 3 W - SMQF368KJT
  • RS Stock No. 286-7497P
  • Mfr. Part No. SMQF368KJT
Subtotal 5 units (supplied on a continuous strip)
SGD11.02(exc. GST)
SGD2.204/unit
In Stock
RS PRO 4700 μF Capacitor 16V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 711-1025
Subtotal (1 pack of 10 units)
SGD10.30(exc. GST)
SGD1.03/unit
In Stock
Panasonic ERJ B1 2.4 kΩ, 1020 Thick Film Resistor ±1 % 1 W - ERJB1AF242U
  • RS Stock No. 228-0486
  • Mfr. Part No. ERJB1AF242U
Subtotal (1 tape of 20 units)
SGD12.80(exc. GST)
SGD0.64/unit
In Stock
Yageo RT 100 Ω, 0805 Thin Film Surface Mount Resistor ±1 % 0.13 W
  • RS Stock No. 198-5684P
  • Mfr. Part No. RT0805FRE07100RL
Subtotal 10 units (supplied on a continuous strip)
SGD0.26(exc. GST)
SGD0.026/unit
In Stock
Vishay RTOP100V4700JB, 470 Ω 100 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 789-1074P
  • Mfr. Part No. RTOP100V4700JB
Subtotal 1 unit (supplied in a box)
SGD119.84(exc. GST)
SGD119.84/unit
In Stock
Wurth Elektronik, 784383, 2010 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 470 nH Shielded ±30 %
  • RS Stock No. 426-970P
  • Mfr. Part No. 784383430047
Subtotal 5 units (supplied on a continuous strip)
SGD14.73(exc. GST)
SGD2.946/unit
Currently unavailable
ROHM ESR18 9.1 mΩ, 1206 Thick Film Surface Mount Resistor ±5 % 0.5 W
  • RS Stock No. 264-2186P
  • Mfr. Part No. ESR18EZPJ915
Subtotal 100 units (supplied on a continuous strip)
SGD7.80(exc. GST)
SGD0.078/unit
In Stock
TDK 2200 μF Capacitor 100V dc, Snap-in - B41231C9228M060
  • RS Stock No. 171-3207
  • Mfr. Part No. B41231C9228M060
Subtotal (1 box of 80 units)
SGD386.72(exc. GST)
SGD4.834/unit
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