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

160570 Products showing for Passive Components

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TE Connectivity CPF 100 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W
  • RS Stock No. 701-4542P
  • Mfr. Part No. CPF0402B100RE1
Subtotal 10 units (supplied on a continuous strip)
SGD3.27(exc. GST)
SGD0.327/unit
Currently unavailable
TDK, SLF Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±20 % 3 A Idc
  • RS Stock No. 111-0882
  • Mfr. Part No. SLF10145T-100M2R5-PF
Subtotal (1 reel of 500 units)
SGD349.50(exc. GST)
SGD0.699/unit
Temporarily out of stock
Vishay MKP1848H Polypropylene Capacitor, ±5 %, 40 μF 920 V dc, Through Hole
  • RS Stock No. 210-1800
  • Mfr. Part No. MKP1848H64090JY5
Subtotal (1 tray of 40 units)
SGD855.84(exc. GST)
SGD21.396/unit
In Stock
Wurth Elektronik 4 mH 1.5 A Common Mode Choke 240 Ω 250V ac
  • RS Stock No. 904-0287
  • Mfr. Part No. 744821240
Subtotal (1 unit)
SGD5.08(exc. GST)
SGD5.08/unit
Last RS stock
Kamaya RMC 20 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - RMC1/10K203FTP
  • RS Stock No. 119-965
  • Mfr. Part No. RMC1/10K203FTP
Subtotal (1 pack of 100 units)
SGD0.90(exc. GST)
SGD0.009/unit
Currently unavailable
RS PRO 7.5 Ω, 0805 Polymer Resistor 5 % Surface 0.25 W - SWR05JTFV7R50
  • RS Stock No. 257-3152
Subtotal (1 tape of 100 units)
SGD6.90(exc. GST)
SGD0.069/unit
In Stock
RS PRO 100 μF Capacitor 100V dc, Through Hole Radial Lead
  • RS Stock No. 181-5503
Subtotal (1 pack of 25 units)
SGD12.00(exc. GST)
SGD0.48/unit
Limited stock
TE Connectivity, 560 Ω 10 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 754-7581P
  • Mfr. Part No. THS10560RJ
Subtotal 1 unit (supplied in a box)
SGD5.84(exc. GST)
SGD5.84/unit
Last RS stock
Syfer Technology 100 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %
  • RS Stock No. 773-8386
  • Mfr. Part No. 0805Y0500104JXT
Subtotal (1 pack of 10 units)
SGD5.82(exc. GST)
SGD0.582/unit
Temporarily out of stock
TE Connectivity 17.8 kΩ Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 701-7787
  • Mfr. Part No. H817K8BYA
Subtotal (1 pack of 5 units)
SGD9.20(exc. GST)
SGD1.84/unit
In Stock
Yageo 10 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-10K
  • RS Stock No. 199-7658
  • Mfr. Part No. MFR-25FTE52-10K
Subtotal (1 tape of 100 units)
SGD3.50(exc. GST)
SGD0.035/unit
In Stock
Wurth Elektronik, WE-HCI, 1365 Shielded Wirewound Surface Mount Inductor with a WE-Superflux Core, 22 μH Flat Wire
  • RS Stock No. 736-2083P
  • Mfr. Part No. 7443551221
Subtotal 1 unit (supplied on a continuous strip)
SGD4.77(exc. GST)
SGD4.77/unit
In Stock
Yageo AC 100 Ω, 1206 Thick Film Resistor ±5 % 0.25 W - AC1206JR-07100RL
  • RS Stock No. 197-8335
  • Mfr. Part No. AC1206JR-07100RL
Subtotal (1 tape of 100 units)
SGD1.90(exc. GST)
SGD0.019/unit
In Stock
TE Connectivity SP2 10 kΩ Linear Potentiometer Bracket Mount, SP2-25
  • RS Stock No. 893-7351
  • Mfr. Part No. SP2-25
Subtotal (1 unit)
SGD550.32(exc. GST)
SGD550.32/unit
Temporarily out of stock
TDK WT Wireless Charging Coil Transmitter, 6.8 μH, 15.3 mm dia.
  • RS Stock No. 185-8205
  • Mfr. Part No. WT151512-22F2-ID
Subtotal (1 tray of 720 units)
SGD2,640.96(exc. GST)
SGD3.668/unit
In Stock
Vishay ACCRF2EDN Resistor Mounting Bracket, For Use With Wirewound Resistors Equipped With AN Collars Suitable for RW -
  • RS Stock No. 788-5167
  • Mfr. Part No. ACCRF2EDN
Subtotal (1 pack of 2 units)
SGD35.82(exc. GST)
SGD17.91/unit
In Stock
KOA RK73H 10 mΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - RK73H1ETTP1005F
  • RS Stock No. 631-9057
  • Mfr. Part No. RK73H1ETTP1005F
Subtotal (1 pack of 100 units)
SGD1.20(exc. GST)
SGD0.012/unit
Temporarily out of stock
Vishay CRCW 301 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW0805301RFKEA
  • RS Stock No. 182-5307
  • Mfr. Part No. CRCW0805301RFKEA
Subtotal (1 reel of 1000 units)
SGD18.00(exc. GST)
SGD0.018/unit
Temporarily out of stock
Caddock 100 mΩ Power Film Resistor 20 W 1 % MP821-0.1R 1%
  • RS Stock No. 164-2712
  • Mfr. Part No. MP821-0.1R 1%
Subtotal (1 unit)
SGD22.13(exc. GST)
SGD22.13/unit
In Stock
RS PRO 270 Ω Carbon Film Resistor 0.25 W 5 %
  • RS Stock No. 707-7625P
Subtotal 10 units (supplied as a tape)
SGD1.43(exc. GST)
SGD0.143/unit
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