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
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
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Inductors
Passive Components Kits
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

163754 Products showing for Passive Components

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Wurth Elektronik 1.2 μH Metal Alloy Leaded Inductor, Max SRF:89.75 MHz, 85.7 A Idc, 0.21 mΩ Rdc, WE-HCFT
  • RS Stock No. 697-681
  • Mfr. Part No. 74437625200122
Subtotal (1 unit)
SGD15.29(exc. GST)
SGD15.29/unit
In Stock
Panasonic 10 μF Capacitor 80V dc, Surface Solder - EEEFK1K100XP 900
  • RS Stock No. 708-3670
  • Mfr. Part No. EEEFK1K100XP
Subtotal (1 pack of 25 units)
SGD11.85(exc. GST)
SGD0.474/unit
In Stock
Wurth Elektronik, WE-SPC Shielded Wirewound Surface Mount Inductor 7.8 μH
  • RS Stock No. 485-090P
  • Mfr. Part No. 74408941078
Subtotal 1 unit (supplied on a continuous strip)
SGD31.22(exc. GST)
SGD31.22/unit
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Wurth Elektronik, WE-TPC, 4848 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 2.2 μH ±30 % 2.5 A Idc
  • RS Stock No. 744-4750
  • Mfr. Part No. 7440430022
Subtotal (1 bag of 5 units)
SGD10.50(exc. GST)
SGD2.10/unit
Currently unavailable
TE Connectivity 430 Ω Metal Oxide Resistor 5 W 5 % ROX5SSJ430R
  • RS Stock No. 187-0167
  • Mfr. Part No. ROX5SSJ430R
Subtotal (1 pack of 20 units)
SGD14.52(exc. GST)
SGD0.726/unit
In Stock
Vishay TNPW 100 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - TNPW0603100RBYEN
  • RS Stock No. 684-5641
  • Mfr. Part No. TNPW0603100RBYEN
Subtotal (1 unit)
SGD0.85(exc. GST)
SGD0.85/unit
In Stock
TE Connectivity 2.21 kΩ Metal Film Resistor 0.25 W 0.1 % YR1B2K21CC
  • RS Stock No. 754-9029
  • Mfr. Part No. YR1B2K21CC
Subtotal (1 pack of 5 units)
SGD6.05(exc. GST)
SGD1.21/unit
In Stock
Vishay CRCW 120 Ω, 0805 Thick Film Surface Mount Resistor ±1 % Surface 0.5 W - CRCW0805120RFKEAHP
  • RS Stock No. 812-3384
  • Mfr. Part No. CRCW0805120RFKEAHP
Subtotal (1 bag of 25 units)
SGD2.15(exc. GST)
SGD0.086/unit
In Stock
Vishay 3.3 Ω Wirewound Resistor 4 W 5 % AC04000003308JAC00
  • RS Stock No. 683-0961
  • Mfr. Part No. AC04000003308JAC00
Subtotal (1 pack of 10 units)
SGD9.75(exc. GST)
SGD0.975/unit
In Stock
KYOCERA AVX 10 pF Multilayer Ceramic Capacitor, 50V dc, 0.5 pF, Surface
  • RS Stock No. 698-3065
  • Mfr. Part No. 04025A100DAT2A
Subtotal (1 pack of 100 units)
SGD9.70(exc. GST)
SGD0.097/unit
In Stock
Bourns, SRN3015, 3015 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±20 % 1 A Idc Q:16
  • RS Stock No. 743-5071
  • Mfr. Part No. SRN3015-100M
Subtotal (1 bag of 10 units)
SGD4.10(exc. GST)
SGD0.41/unit
In Stock
KEMET 1.8 nF Multilayer Ceramic Capacitor, 200V dc, ±5 %, Surface
  • RS Stock No. 835-3977
  • Mfr. Part No. C0805C182J2GACAUTO
Subtotal (1 pack of 50 units)
SGD10.20(exc. GST)
SGD0.204/unit
In Stock
ROHM MCRS Series 18 kΩ, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF1802
  • RS Stock No. 780-562P
  • Mfr. Part No. MCR03SEQPF1802
Subtotal 1000 units (supplied on a reel)
SGD15.00(exc. GST)
SGD0.015/unit
Temporarily out of stock
Taoglas ASGPDF254.A Patch WiFi Antenna, GPS
  • RS Stock No. 690-767
  • Mfr. Part No. ASGPDF254.A
Subtotal (1 unit)
SGD47.16(exc. GST)
SGD47.16/unit
In Stock
Murata, LQW, 0402 Wirewound Surface Mount Inductor with a Ferrite Core, 12 nH ±5 % 500 mA Idc Q:30
  • RS Stock No. 724-2844
  • Mfr. Part No. LQW15AN12NJ00D
Subtotal (1 pack of 10 units)
SGD1.18(exc. GST)
SGD0.118/unit
In Stock
Wurth Elektronik, WE-CMDC 5 A 80V dc, Surface Power Line Filter 1 Phase
  • RS Stock No. 697-675
  • Mfr. Part No. 744239701
Subtotal (1 tape of 5 units)
SGD17.37(exc. GST)
SGD3.474/unit
In Stock
Wurth Elektronik, WE-MAPI, 3020 Shielded Wirewound Surface Mount Inductor with a Magnetic Iron Alloy Core, 1.5 μH ±20 %
  • RS Stock No. 863-0804
  • Mfr. Part No. 74438336015
Subtotal (1 bag of 5 units)
SGD10.55(exc. GST)
SGD2.11/unit
Temporarily out of stock
Bourns, SRP7050AA, 7050 Shielded Power Inductor with a Metal Alloy Powder Core, 6.8 μH ±20 % 9 A Idc Q:10
  • RS Stock No. 247-6187P
  • Mfr. Part No. SRP7050AA-6R8M
Subtotal 1 unit (supplied on a continuous strip)
SGD1.68(exc. GST)
SGD1.68/unit
In Stock
Murata 22 pF Multilayer Ceramic Capacitor, 100V dc, ±5 %, Through Hole Solder
  • RS Stock No. 841-0751
  • Mfr. Part No. RCE5C2A220J0DBH03A
Subtotal (1 pack of 25 units)
SGD8.775(exc. GST)
SGD0.351/unit
In Stock
Vishay 470 mΩ Wirewound Resistor 4 W 5 % AC04000004707JAC00
  • RS Stock No. 683-0970
  • Mfr. Part No. AC04000004707JAC00
Subtotal (1 pack of 10 units)
SGD10.10(exc. GST)
SGD1.01/unit
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