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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157799 Products showing for Passive Components

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Vishay 4.7 μF Tantalum Tantalum Capacitor 16V dc, Surface, TMCU Series
  • RS Stock No. 188-2432
  • Mfr. Part No. TMCUA1C475KTRF
Subtotal (1 pack of 25 units)
SGD8.55(exc. GST)
SGD0.342/unit
In Stock
RS PRO RSTN 100 kΩ, 0805 Thin Film Resistor 0.1 % 0.4 W
  • RS Stock No. 243-0654P
Subtotal 10 units (supplied on a continuous strip)
SGD6.95(exc. GST)
SGD0.695/unit
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KEMET 330 μH Nickel Zinc Ferrite Core Coil Inductor, 940 mA Idc, 450 mΩ Rdc, SBC7
  • RS Stock No. 265-2534
  • Mfr. Part No. SBC7-331-941
Subtotal (1 unit)
SGD1.71(exc. GST)
SGD1.71/unit
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Panasonic 10 μF Capacitor 35V dc, Surface Solder - EEEHB1V100R
  • RS Stock No. 537-0865
  • Mfr. Part No. EEEHB1V100R
Subtotal (1 pack of 5 units)
SGD2.27(exc. GST)
SGD0.454/unit
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Panasonic ERJ 15 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ3EKF15R0V
  • RS Stock No. 184-8935
  • Mfr. Part No. ERJ3EKF15R0V
Subtotal (1 reel of 1000 units)
SGD14.00(exc. GST)
SGD0.014/unit
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Murata 100 dB Surface Buzzer External Piezo Buzzer Component 7.9 mm 18 mm 18mm 18V Max
  • RS Stock No. 144-6628
  • Mfr. Part No. PKMCS1818E20A0-R1
Subtotal (1 tape of 250 units)
SGD482.25(exc. GST)
SGD1.929/unit
Temporarily out of stock
TE Connectivity HSHC50015RJ, 15 Ω 500 W Wirewound Chassis Mount Fixed Resistor ±5 %
  • RS Stock No. 599-333
  • Mfr. Part No. HSHC50015RJ
Subtotal (1 box of 4 units)
SGD988.992(exc. GST)
SGD247.248/unit
Temporarily out of stock
RS PRO Single Layer Ceramic Capacitor 4.7 nF 3kV dc ±20 % Y5U Dielectric, YU3024, Through Hole 85 °C Max Op. Temp.
  • RS Stock No. 180-4844
Subtotal (1 bag of 500 units)
SGD92.00(exc. GST)
SGD0.184/unit
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Panasonic ERA 1.54 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3APB1541V
  • RS Stock No. 179-8960
  • Mfr. Part No. ERA3APB1541V
Subtotal (1 reel of 250 units)
SGD149.50(exc. GST)
SGD0.598/unit
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Bourns 6657 10 kΩ Rotary Potentiometer 1-Gang Bush, 6657S-1-103
  • RS Stock No. 827-4953
  • Mfr. Part No. 6657S-1-103
Subtotal (1 unit)
SGD64.12(exc. GST)
SGD64.12/unit
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Murata, LQW15AN, 0402 Unshielded Inductor with a Ferrite Core, 15 nH Ferrite Core ±5% 460 mA Idc Q:30
  • RS Stock No. 886-908
  • Mfr. Part No. LQW15AN15NJ00D
Subtotal (1 unit)
SGD0.07(exc. GST)
SGD0.07/unit
In Stock
Welwyn 3.9 kΩ Wirewound Resistor 7 W 5 %
  • RS Stock No. 144-3009
  • Mfr. Part No. W22-3K9JI
Subtotal (1 bag of 5 units)
SGD17.02(exc. GST)
SGD3.404/unit
In Stock
100 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Side Adjust Bourns, 3296
  • RS Stock No. 785-9818P
  • Mfr. Part No. 3296Z-1-104LF
Subtotal 1 unit (supplied in a tube)
SGD2.96(exc. GST)
SGD2.96/unit
In Stock
Panasonic ERJ 3EK 1.4 kΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - ERJ3EKF1401V
  • RS Stock No. 277-855P
  • Mfr. Part No. ERJ3EKF1401V
Subtotal 10 units (supplied on a continuous strip)
SGD0.29(exc. GST)
SGD0.029/unit
In Stock
Panasonic EZPV Film Capacitor, ±10 %, 30 μF 700 V dc, Through Hole
  • RS Stock No. 288-9992
  • Mfr. Part No. EZPV70306MTS
Subtotal (1 unit)
SGD19.17(exc. GST)
SGD19.17/unit
Temporarily out of stock
KEMET 1 μF Multilayer Ceramic Capacitor, 25V, 10 %
  • RS Stock No. 188-1959
  • Mfr. Part No. C0805X105K3RAC3316
Subtotal (1 reel of 2500 units)
SGD1,137.50(exc. GST)
SGD0.455/unit
In Stock
Wurth Elektronik 22 μF Multilayer Ceramic Capacitor, 25V dc, ±20 %, Surface
  • RS Stock No. 242-1119P
  • Mfr. Part No. 885012109014
Subtotal 1 unit (supplied on a continuous strip)
SGD2.19(exc. GST)
SGD2.19/unit
In Stock
Yageo 1 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 198-8237P
  • Mfr. Part No. CS0805KKX7R8BB105
Subtotal 100 units (supplied on a continuous strip)
SGD11.80(exc. GST)
SGD0.118/unit
Temporarily out of stock
Bourns, 4600X 15 kΩ 2 % BUS Resistor Array, 8 Resistors, 1.13 W total, SIP, Pin
  • RS Stock No. 788-4076
  • Mfr. Part No. 4609X-101-153LF
Subtotal (1 pack of 25 units)
SGD5.975(exc. GST)
SGD0.239/unit
Temporarily out of stock
Yageo RC_L 33 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W - RC0603FR-0733KL
  • RS Stock No. 199-5545
  • Mfr. Part No. RC0603FR-0733KL
Subtotal (1 reel of 5000 units)
SGD20.00(exc. GST)
SGD0.004/unit
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