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
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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163877 Products showing for Passive Components

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Bourns, SRN3015, 3015 Shielded Surface Mount Inductor with a Ferrite Core, 1.5 μH Semi Shielded ±30 % 2.1 A Idc Q:16
  • RS Stock No. 743-5052
  • Mfr. Part No. SRN3015-1R5Y
Subtotal (1 bag of 10 units)
SGD4.56(exc. GST)
SGD0.456/unit
In Stock
Yageo 10 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 199-1984
  • Mfr. Part No. CC1206KKX5R8BB106
Subtotal (1 tape of 20 units)
SGD9.46(exc. GST)
SGD9.46/tape
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Yageo RC 200 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±5 % 125 mW - RC0805JR-07200RL
  • RS Stock No. 242-7080
  • Mfr. Part No. RC0805JR-07200RL
Subtotal (1 tape of 100 units)
SGD1.30(exc. GST)
SGD0.013/unit
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Murata Single Layer Ceramic Capacitor 4.7 nF ±20 % E(JIS) Dielectric, DE2, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 172-7770
  • Mfr. Part No. DE2E3SA472MA3BY02F
Subtotal (1 pack of 10 units)
SGD6.90(exc. GST)
SGD0.69/unit
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TE Connectivity 2.4 kΩ Metal Film Resistor 0.6 W 1 % LR1F2K4
  • RS Stock No. 148-590
  • Mfr. Part No. LR1F2K4
Subtotal (1 pack of 10 units)
SGD0.56(exc. GST)
SGD0.056/unit
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Yageo 10 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 198-8126P
  • Mfr. Part No. CC0805KRX5R6BB106
Subtotal 100 units (supplied on a continuous strip)
SGD8.30(exc. GST)
SGD0.083/unit
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Samsung Electro-Mechanics 10 μF Multilayer Ceramic Capacitor, 35V dc, ±10 %, Surface
  • RS Stock No. 766-1104
  • Mfr. Part No. CL31B106KLHNNNE
Subtotal (1 pack of 10 units)
SGD4.95(exc. GST)
SGD0.495/unit
Currently unavailable
Vishay 9.1 Ω Thin Film Resistor 0.6 W 1 %
  • RS Stock No. 169-5373
  • Mfr. Part No. MRS25000C9108FCT00
Subtotal (1 reel of 5000 units)
SGD390.00(exc. GST)
SGD0.078/unit
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Panasonic, V Surge Absorber 7 nF 10 A, Clamping 1.815 kV, Varistor 39 V
  • RS Stock No. 110-1932
  • Mfr. Part No. ERZV14D390
Subtotal (1 bag of 1000 units)
SGD355.00(exc. GST)
SGD0.355/unit
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Panasonic ERJP06 10 kΩ, 0805 Thick Film Surface Mount Resistor ±5 % 0.5 W - ERJP06J103V
  • RS Stock No. 153-797
  • Mfr. Part No. ERJP06J103V
Subtotal (1 pack of 500 units)
SGD17.00(exc. GST)
SGD0.034/unit
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RS PRO 85 dB PCB High Internal Magnetic Buzzer Component 9.5 mm 3 V Min 12mm 8V Max
  • RS Stock No. 771-6967
Subtotal (1 bag of 5 units)
SGD20.78(exc. GST)
SGD4.156/unit
Currently unavailable
Vishay 100 μF Capacitor 35V dc, SMD Surface Mount - MAL215097011E3 Surface Mount
  • RS Stock No. 280-6752
  • Mfr. Part No. MAL215097011E3
Subtotal (1 reel of 500 units)
SGD641.50(exc. GST)
SGD1.283/unit
Temporarily out of stock
Vishay 3.3 μF MnO2 Tantalum Capacitor 35V dc, Surface, 293D Series
  • RS Stock No. 169-3358
  • Mfr. Part No. 293D335X9035B2TE3
Subtotal (1 reel of 2000 units)
SGD802.00(exc. GST)
SGD0.401/unit
In Stock
Arcol Ohmite HS50 R68 J, 680 mΩ 50 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 160-893P
  • Mfr. Part No. HS50 R68 J
Subtotal 1 unit (supplied in a bag)
SGD9.24(exc. GST)
SGD9.24/unit
In Stock
Murata 0.7 pF Multilayer Ceramic Capacitor, 50V dc, 0.05 pF, Surface
  • RS Stock No. 114-0382
  • Mfr. Part No. GJM1555C1HR70WB01D
Subtotal (1 pack of 100 units)
SGD6.70(exc. GST)
SGD0.067/unit
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Wurth Elektronik Openable, Diameter 8.5 mm Ferrite Sleeve, Apertures: 1 24.2 mm 19.7 mm 36.3 mm, For EMI Suppression
  • RS Stock No. 163-3200
  • Mfr. Part No. 74271132
Subtotal (1 box of 38 units)
SGD281.31(exc. GST)
SGD7.403/unit
In Stock
KEMET 940 nF Multilayer Ceramic Capacitor, 250V dc, 10 %, Surface
  • RS Stock No. 224-6956
  • Mfr. Part No. C1812X944KARLCAUTO
Subtotal (1 unit)
SGD4.69(exc. GST)
SGD4.69/unit
In Stock
Vishay 10 μF MnO2 Tantalum Capacitor 10V dc, Surface, 293D Series
  • RS Stock No. 684-3897
  • Mfr. Part No. 293D106X9010C2TE3
Subtotal (1 pack of 10 units)
SGD5.34(exc. GST)
SGD0.534/unit
In Stock
KOA 1.5 kΩ Metal Film Resistor 0.25 W 1 % MF1/4CC1501F
  • RS Stock No. 463-9422
  • Mfr. Part No. MF1/4CC1501F
Subtotal (1 bag of 100 units)
SGD13.10(exc. GST)
SGD0.131/unit
Temporarily out of stock
TDK NTC Thermistor, NTC Type 220 Ω 2 mm 5.5 mm 5 mm
  • RS Stock No. 152-7138
  • Mfr. Part No. B57164K0221J000
Subtotal (1 pack of 10 units)
SGD7.98(exc. GST)
SGD0.798/unit
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