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
Inductors
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

163841 Products showing for Passive Components

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Currently unavailable
TDK 6.8 mH Ferrite Common Mode Choke, 2 A Idc, 170 mΩ Rdc, B82721A
  • RS Stock No. 772-0206
  • Mfr. Part No. B82724J2202N001
Subtotal (1 unit)
SGD5.33(exc. GST)
SGD5.33/unit
Temporarily out of stock
Abracon, AOTA, 2520 Shielded Surface Mount Inductor with a Metal Alloy Core, 1 μH Moulded ±20 % 5.4 A Idc
  • RS Stock No. 899-148P
  • Mfr. Part No. AOTA-B252010S1R0MT
Subtotal 50 units (supplied on a continuous strip)
SGD9.55(exc. GST)
SGD0.191/unit
In Stock
KEMET 1.5 mH Nickel Zinc Ferrite Core Coil Inductor, 480 mA Idc, 1.58 Ω Rdc, SBC7
  • RS Stock No. 265-2522
  • Mfr. Part No. SBC7-152-481
Subtotal (1 unit)
SGD2.91(exc. GST)
SGD2.91/unit
In Stock
Bourns, CATCAY 16 33 Ω 0.05 % ISOL Array Resistor, 4 Resistors, 62.5 mW total, 1206, Concave
  • RS Stock No. 223-1651
  • Mfr. Part No. CAT16-330J4LF
Subtotal (1 tape of 100 units)
SGD3.10(exc. GST)
SGD0.031/unit
Currently unavailable
TE Connectivity CRGS 2.7 kΩ, 0805 Thick Film Surface Mount Resistor ±5 % 0.5 W - CRGS0805J2K7
  • RS Stock No. 905-9663
  • Mfr. Part No. CRGS0805J2K7
Subtotal (1 bag of 100 units)
SGD10.40(exc. GST)
SGD0.104/unit
In Stock
ROHM MCRS Series 15 Ω, 1206 Thick Film Resistor ±1 % Surface 0.4 W - MCR18SEQPF1500
  • RS Stock No. 780-455
  • Mfr. Part No. MCR18SEQPF1500
Subtotal (1 tape of 500 units)
SGD15.50(exc. GST)
SGD0.031/unit
In Stock
Abracon, ASPI-6045S Shielded Surface Mount Inductor with a Ferrite Core, 22 μH Flat Wire Winding ±20 % 1.8 A Idc
  • RS Stock No. 240-0948
  • Mfr. Part No. ASPI-6045S-220M-T
Subtotal (1 pack of 25 units)
SGD11.875(exc. GST)
SGD0.475/unit
In Stock
Wurth Elektronik Ferrite Bead 0.9 mm (Surface) (0805) (Ferrite Bead), 30 Ω impedance at 100 MHz
  • RS Stock No. 245-8302
  • Mfr. Part No. 742792030
Subtotal (1 tape of 10 units)
SGD3.28(exc. GST)
SGD0.328/unit
Currently unavailable
TE Connectivity RA73 1.21 kΩ, 0805 Thin Film Surface Mount Fixed Resistor 0.1 % Surface 1 W - RA73F2A1K21BTDF
  • RS Stock No. 238-9885P
  • Mfr. Part No. RA73F2A1K21BTDF
Subtotal 1 unit (supplied on a continuous strip)
SGD3.15(exc. GST)
SGD3.15/unit
In Stock
KEMET 33 nF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 801-5132
  • Mfr. Part No. C0402C333K4RACTU
Subtotal (1 pack of 25 units)
SGD1.025(exc. GST)
SGD0.041/unit
In Stock
Wurth Elektronik 100 pF Multilayer Ceramic Capacitor, 200V dc, ±10 %, Surface
  • RS Stock No. 242-1227
  • Mfr. Part No. 885342207001
Subtotal (1 pack of 50 units)
SGD3.55(exc. GST)
SGD0.071/unit
In Stock
TDK 22 μH 250 mA Common Mode Choke 580 mΩ 80V ac
  • RS Stock No. 184-9174
  • Mfr. Part No. B82789S0223N002
Subtotal (1 tape of 5 units)
SGD10.25(exc. GST)
SGD2.05/unit
Temporarily out of stock
KEMET, GTX 60 A 500V ac, Chassis Mount EMI Filter, Screw 3 Phase
  • RS Stock No. 242-0957
  • Mfr. Part No. GTX-3600-Y473
Subtotal (1 unit)
SGD379.95(exc. GST)
SGD379.95/unit
In Stock
Abracon 8 MHz Crystal Unit ±30 ppm Cylindrical 2-Pin 8 mm
  • RS Stock No. 240-0786
  • Mfr. Part No. AB308-8.000MHZ
Subtotal (1 pack of 25 units)
SGD24.925(exc. GST)
SGD0.997/unit
Temporarily out of stock
Wurth Elektronik, WE-MK Unshielded Multilayer Surface Mount Inductor with a Ceramic Core, 7.5 nH Multilayer 5 % 240 mA
  • RS Stock No. 217-7479
  • Mfr. Part No. 7447820075
Subtotal (1 tape of 100 units)
SGD6.50(exc. GST)
SGD0.065/unit
In Stock
Yageo RT 4.7 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W
  • RS Stock No. 199-1350P
  • Mfr. Part No. RT0402BRD074K7L
Subtotal 10 units (supplied on a continuous strip)
SGD1.07(exc. GST)
SGD0.107/unit
In Stock
Bourns CRL 100 mΩ, 2512 Thick Film Resistor ±1 % 1 W - CRL2512-FW-R100ELF
  • RS Stock No. 233-0769
  • Mfr. Part No. CRL2512-FW-R100ELF
Subtotal (1 tape of 10 units)
SGD4.09(exc. GST)
SGD0.409/unit
In Stock
Taoglas FXP280.07.0100A Rectangular Antenna with IPEX MHF Connector, ISM
  • RS Stock No. 764-102
  • Mfr. Part No. FXP280.07.0100A
Subtotal (1 unit)
SGD13.09(exc. GST)
SGD13.09/unit
In Stock
Bourns, SRF2012A, 2012 Unshielded Surface Mount Common Mode Line Filter with a Ferrite Core, Ferrite Core ±25 % 400 mA
  • RS Stock No. 223-1766
  • Mfr. Part No. SRF2012A-900YA
Subtotal (1 tape of 10 units)
SGD3.37(exc. GST)
SGD0.337/unit
In Stock
Trimmer Potentiometer 0.5 W Bourns
  • RS Stock No. 246-3115
  • Mfr. Part No. 3362P-1-103TLF
Subtotal (1 unit)
SGD3.81(exc. GST)
SGD3.81/unit
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