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
Variable Resistors
Variable Resistors

159657 Products showing for Passive Components

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Vishay 5.1 kΩ Thin Film Resistor 0.6 W 1 % MRS25000C5101FCT00
  • RS Stock No. 683-4238
  • Mfr. Part No. MRS25000C5101FCT00
Subtotal (1 pack of 25 units)
SGD4.40(exc. GST)
SGD0.176/unit
Temporarily out of stock
Wurth Elektronik 350 μH 6.4 A Common Mode Choke 10 mΩ 1500V
  • RS Stock No. 245-8538
  • Mfr. Part No. 7448226404
Subtotal (1 box of 90 units)
SGD671.13(exc. GST)
SGD7.457/unit
Temporarily out of stock
KOA RN73H 47 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - RN73H2ATTD4702B25
  • RS Stock No. 178-6467
  • Mfr. Part No. RN73H2ATTD4702B25
Subtotal (1 reel of 5000 units)
SGD755.00(exc. GST)
SGD0.151/unit
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500 Ω, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Vishay, T93
  • RS Stock No. 162-2450
  • Mfr. Part No. T93XA501KT20
Subtotal (1 tube of 50 units)
SGD118.30(exc. GST)
SGD2.366/unit
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TDK B32520 Film Capacitor 330 nF 63V ac 100 V dc, Through Hole 2
  • RS Stock No. 668-9946P
  • Mfr. Part No. B32520C1334K189
Subtotal 10 units (supplied in a bag)
SGD5.00(exc. GST)
SGD0.50/unit
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Rubycon 100 μF Capacitor 50V dc, Through Hole - 50ZLJ100M8X11.5 PC Pin
  • RS Stock No. 725-8981
  • Mfr. Part No. 50ZLJ100M8X11.5
Subtotal (1 pack of 10 units)
SGD3.41(exc. GST)
SGD0.341/unit
Temporarily out of stock
TE Connectivity 19.1 Ω Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 755-1088
  • Mfr. Part No. YR1B19R1CC
Subtotal (1 pack of 5 units)
SGD4.60(exc. GST)
SGD0.92/unit
Currently unavailable
TE Connectivity CRGH 5.6 kΩ, 0805 Thick Film Surface Mount Resistor ±5 % Surface 0.33 W - CRGH0805J5K6
  • RS Stock No. 164-5455
  • Mfr. Part No. CRGH0805J5K6
Subtotal (1 reel of 5000 units)
SGD105.00(exc. GST)
SGD0.021/unit
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Wurth Elektronik, WE-TI, 5075 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 μH ±10 % 800 mA Idc
  • RS Stock No. 736-1888
  • Mfr. Part No. 7447462101
Subtotal (1 bag of 5 units)
SGD6.46(exc. GST)
SGD1.292/unit
Temporarily out of stock
Murata Power Solutions, 6000B, 2720 Unshielded Wirewound Surface Mount Inductor 68 μH ±15 % 9 A Idc
  • RS Stock No. 749-6405
  • Mfr. Part No. 60B683C
Subtotal (1 unit)
SGD5.73(exc. GST)
SGD5.73/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 915-5613P
  • Mfr. Part No. CGA2B3X7R1H104K050BD
Subtotal 50 units (supplied on a continuous strip)
SGD3.75(exc. GST)
SGD0.075/unit
Temporarily out of stock
Wurth Elektronik, WE-LQFS, 4828 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 μH ±20 % 620 mA Idc
  • RS Stock No. 135-4620
  • Mfr. Part No. 74406043101
Subtotal (1 reel of 2000 units)
SGD1,742.00(exc. GST)
SGD0.871/unit
In Stock
Bourns 750 mΩ Thick Film Resistor 20 W 1 % PWR220T-20-R750F
  • RS Stock No. 796-2517
  • Mfr. Part No. PWR220T-20-R750F
Subtotal (1 unit)
SGD7.86(exc. GST)
SGD7.86/unit
In Stock
Wurth Elektronik Openable, Diameter 5 mm Ferrite Ring Key 41 mm 18 mm 23.4 mm, For General Application
  • RS Stock No. 248-8144
  • Mfr. Part No. 78271111S
Subtotal (1 unit)
SGD7.16(exc. GST)
SGD7.16/unit
In Stock
Wurth Elektronik 630 μH Ferrite Toroidal Inductor, Max SRF:1.5 MHz, 3.1 A Idc, 175 mΩ Rdc, WE-SI
  • RS Stock No. 334-9190
  • Mfr. Part No. 744137
Subtotal (1 unit)
SGD6.45(exc. GST)
SGD6.45/unit
Currently unavailable
ROHM ESR10 5.1 kΩ, 0805 Thick Film Resistor ±5 % 0.4 W - ESR10EZPJ512
  • RS Stock No. 262-9598
  • Mfr. Part No. ESR10EZPJ512
Subtotal (1 tape of 100 units)
SGD3.40(exc. GST)
SGD0.034/unit
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RS PRO 5.6 kΩ Metal Film Resistor 1 W 0.5 %
  • RS Stock No. 174-3103
Subtotal (1 pack of 100 units)
SGD11.70(exc. GST)
SGD0.117/unit
In Stock
Panasonic 33 μF Polymer Capacitor 25V dc, Surface
  • RS Stock No. 758-1247
  • Mfr. Part No. EEHZA1E330R
Subtotal (1 pack of 5 units)
SGD7.40(exc. GST)
SGD1.48/unit
In Stock
KOA RN73R 270 Ω, 1206 Metal Film Surface Mount Resistor ±0.1 % 0.25 W - RN73R2BTTD2700B25
  • RS Stock No. 253-3408
  • Mfr. Part No. RN73R2BTTD2700B25
Subtotal (1 tape of 5 units)
SGD1.95(exc. GST)
SGD0.39/unit
Temporarily out of stock
TE Connectivity 2 Ω Wirewound Fusible Resistor 5 W 5 % FWFU5W2R0J
  • RS Stock No. 732-309
  • Mfr. Part No. FWFU5W2R0J
Subtotal (1 tape of 10 units)
SGD10.95(exc. GST)
SGD1.095/unit
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