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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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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163130 Products showing for Passive Components

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8088 of 999+
Currently unavailable
Nichicon 220 μF Capacitor 35V dc, Surface Solder
  • RS Stock No. 167-1016
  • Mfr. Part No. UWD1V221MCL1GS
Subtotal (1 reel of 500 units)
SGD219.50(exc. GST)
SGD0.439/unit
In Stock
Nichicon 47 μF Capacitor 50V dc, Surface Solder - UWT1H470MCL1GS
  • RS Stock No. 739-2876
  • Mfr. Part No. UWT1H470MCL1GS
Subtotal (1 pack of 10 units)
SGD1.89(exc. GST)
SGD0.189/unit
Temporarily out of stock
Bourns, SRP4020FA, 4020 Shielded Power Inductor with a Metal Alloy Powder Core, 2.2 μH ±20 % 8 A Idc Q:15
  • RS Stock No. 466-262P
  • Mfr. Part No. SRP4020FA-2R2M
Subtotal 2 units (supplied on a continuous strip)
SGD3.20(exc. GST)
SGD1.60/unit
In Stock
Panasonic ERJ3G 5.1 kΩ, 0603 Thick Film Surface Mount Fixed Resistor ±5 % 0.1 W
  • RS Stock No. 287-707P
  • Mfr. Part No. ERJ3GEYJ512V
Subtotal 10 units (supplied on a continuous strip)
SGD0.14(exc. GST)
SGD0.014/unit
In Stock
TE Connectivity SMQ 220 Ω Wirewound Surface Mount Resistor 5 % Surface 2 W - SMQW2220RJT
  • RS Stock No. 286-7562
  • Mfr. Part No. SMQW2220RJT
Subtotal (1 reel of 1000 units)
SGD576.00(exc. GST)
SGD0.576/unit
In Stock
TE Connectivity, 2.2 Ω 250 W Thick Film Chassis Mount Resistor ±10 %
  • RS Stock No. 225-1317
  • Mfr. Part No. BDS2A2502R2K
Subtotal (1 unit)
SGD503.66(exc. GST)
SGD503.66/unit
In Stock
RS PRO 1 μF Capacitor 100V dc, Through Hole Radial Lead
  • RS Stock No. 181-5042
Subtotal (1 bag of 1000 units)
SGD125.00(exc. GST)
SGD0.125/unit
In Stock
Wurth Elektronik Openable, Diameter 7.5 mm Ferrite Sleeve, Apertures: 1 24.5 mm 21 mm 40.5 mm, For Safety Relevant
  • RS Stock No. 815-0005
  • Mfr. Part No. 74271131S
Subtotal (1 unit)
SGD6.52(exc. GST)
SGD6.52/unit
Temporarily out of stock
Vishay 1500 μF Capacitor 200V dc, Through Hole - MAL225722152E3 Snap-In
  • RS Stock No. 197-2202
  • Mfr. Part No. MAL225722152E3
Subtotal (1 unit)
SGD13.53(exc. GST)
SGD13.53/unit
In Stock
Panasonic 1200 μF Capacitor 16V dc, Surface Solder - EEEFT1C122UV
  • RS Stock No. 249-1310
  • Mfr. Part No. EEEFT1C122UV
Subtotal (1 pack of 10 units)
SGD20.98(exc. GST)
SGD2.098/unit
Temporarily out of stock
RS PRO 22 μF Capacitor 25V dc, Through Hole Axial
  • RS Stock No. 170-1087
Subtotal (1 bag of 500 units)
SGD156.50(exc. GST)
SGD0.313/unit
In Stock
Abracon 7.3728 MHz Crystal Unit ±20 ppm Surface Mount 4-Pin 1.3 mm 7.2 mm 5.2mm
  • RS Stock No. 171-2748P
  • Mfr. Part No. ABMM-7.3728MHZ-B2-T
Subtotal 10 units (supplied on a continuous strip)
SGD15.90(exc. GST)
SGD1.59/unit
In Stock
ROHM ESR25 30 kΩ, 1210 Thick Film Resistor ±1 % 0.66 W - ESR25JZPF3002
  • RS Stock No. 263-7457P
  • Mfr. Part No. ESR25JZPF3002
Subtotal 10 units (supplied on a continuous strip)
SGD3.18(exc. GST)
SGD0.318/unit
Currently unavailable
Wurth Elektronik, 18.432MHz SPXO Crystal Oscillator, ±50 ppm HCMOS, 4-Pin SMT
  • RS Stock No. 276-6791
  • Mfr. Part No. 831020392
Subtotal (1 reel of 1000 units)
SGD3,550.00(exc. GST)
SGD3.55/unit
Last RS stock
Vishay CRCW 10 kΩ, 1210 Thick Film Surface Mount Resistor ±1 % Surface 0.33 W - CRCW121010K0FKEA
  • RS Stock No. 679-2376P
  • Mfr. Part No. CRCW121010K0FKEA
Subtotal 50 units (supplied on a continuous strip)
SGD4.80(exc. GST)
SGD0.096/unit
Currently unavailable
TDK, SIMID, 2220 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 82 μH ±10 % 540 mA Idc Q:15
  • RS Stock No. 212-6038P
  • Mfr. Part No. B82442T1823K000
Subtotal 5 units (supplied on a continuous strip)
SGD7.55(exc. GST)
SGD1.51/unit
Temporarily out of stock
TE Connectivity 39 Ω Wirewound Fusible Resistor 5 W 5 % FWFU5W39RJ
  • RS Stock No. 732-551P
  • Mfr. Part No. FWFU5W39RJ
Subtotal 10 units (supplied in a box)
SGD10.95(exc. GST)
SGD1.095/unit
In Stock
Yageo RC_L 22.1 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - RC0402FR-0722R1L
  • RS Stock No. 198-7709
  • Mfr. Part No. RC0402FR-0722R1L
Subtotal (1 tape of 100 units)
SGD0.60(exc. GST)
SGD0.006/unit
In Stock
Panasonic ERJ PA2 10 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±0.5 % Surface 0.2 W - ERJPA2D10R0X
  • RS Stock No. 287-974P
  • Mfr. Part No. ERJPA2D10R0X
Subtotal 10 units (supplied on a continuous strip)
SGD1.37(exc. GST)
SGD0.137/unit
Temporarily out of stock
KEMET R53B Film Capacitor, ±10 %, 1.2 μF 800 V dc 350V ac, Through Hole
  • RS Stock No. 242-3642
  • Mfr. Part No. R53BR41205000K
Subtotal (1 tray of 288 units)
SGD648.288(exc. GST)
SGD2.251/unit
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