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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158454 Products showing for Passive Components

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TE Connectivity 3522 6.8 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 3 W
  • RS Stock No. 871-1045P
  • Mfr. Part No. 35226R8JT
Subtotal 10 units (supplied on a continuous strip)
SGD8.32(exc. GST)
SGD0.832/unit
In Stock
Vishay, IHLP, EK Shielded Surface Mount Inductor with a Metal Composite Core, 3.3 μH ±20 % 10 A Idc
  • RS Stock No. 565-234
  • Mfr. Part No. IHLP4040DZEK3R3M01
Subtotal (1 tape of 10 units)
SGD19.08(exc. GST)
SGD1.908/unit
Temporarily out of stock
KEMET 220 μH Nickel Zinc Ferrite Coil Inductor, 720 mA Idc, 470 mΩ Rdc, SBC4
  • RS Stock No. 265-2421
  • Mfr. Part No. SBC4-221-721
Subtotal (1 box of 4000 units)
SGD3,620.00(exc. GST)
SGD0.905/unit
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2 mΩ, Surface Mount Cermet Potentiometer, J-Hook 0.25 W Vertical Vishay, TS4
  • RS Stock No. 895-760
  • Mfr. Part No. TS4RL203MR10
Subtotal (1 tape of 1 unit)
SGD5.24(exc. GST)
SGD5.24/tape
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Bourns CR 150 Ω, 1206 Thick Film Resistor 1 % Surface 250 mW - CR1206-FX-1500ELF
  • RS Stock No. 630-146P
  • Mfr. Part No. CR1206-FX-1500ELF
Subtotal 20 units (supplied on a continuous strip)
SGD0.86(exc. GST)
SGD0.043/unit
In Stock
Vishay CRCW 330 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW1206330RFKEA
  • RS Stock No. 679-2049
  • Mfr. Part No. CRCW1206330RFKEA
Subtotal (1 pack of 50 units)
SGD2.30(exc. GST)
SGD0.046/unit
Temporarily out of stock
KOA HV73 10 mΩ, 2010 Thick Film Surface Mount Resistor ±1 % 0.5 W - HV732HTTE1005F
  • RS Stock No. 181-0442
  • Mfr. Part No. HV732HTTE1005F
Subtotal (1 reel of 4000 units)
SGD1,124.00(exc. GST)
SGD0.281/unit
In Stock
Panasonic ERJ H2G 680 Ω, 0402 Thick Film Surface Mount Resistor ±5 % 0.1 W
  • RS Stock No. 228-4543P
  • Mfr. Part No. ERJH2GJ681X
Subtotal 100 units (supplied on a continuous strip)
SGD4.80(exc. GST)
SGD0.048/unit
Temporarily out of stock
KEMET 15000 μF Capacitor 63V dc, Screw
  • RS Stock No. 381-9122P
  • Mfr. Part No. ALS30A153KE063
Subtotal 1 unit (supplied in a box)
SGD43.21(exc. GST)
SGD43.21/unit
Temporarily out of stock
Yageo 1.2 kΩ Cement Through Hole Fixed Resistor 10 W 5 % SQP10AJB-1K2
  • RS Stock No. 199-1727
  • Mfr. Part No. SQP10AJB-1K2
Subtotal (1 box of 500 units)
SGD330.50(exc. GST)
SGD0.661/unit
Last RS stock
TE Connectivity 3430 560 kΩ, 1225 Thick Film Surface Mount Fixed Resistor 1 % Surface 3 W
  • RS Stock No. 274-7136P
  • Mfr. Part No. 3430A3F560KTE
Subtotal 10 units (supplied on a continuous strip)
SGD9.19(exc. GST)
SGD0.919/unit
Currently unavailable
Yageo 1 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface
  • RS Stock No. 199-2121
  • Mfr. Part No. CC0402CRNPO9BN1R0
Subtotal (1 reel of 10000 units)
SGD60.00(exc. GST)
SGD0.006/unit
In Stock
Yageo RC0805 330 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 0.13 W - RC0805FR-07330RL
  • RS Stock No. 242-6990
  • Mfr. Part No. RC0805FR-07330RL
Subtotal (1 tape of 100 units)
SGD1.80(exc. GST)
SGD0.018/unit
New product - Preorder today
Murata 1 μF Multilayer Ceramic Capacitor, 35V dc, 0.1, Surface Mount
  • RS Stock No. 887-073
  • Mfr. Part No. GRM155R6YA105KE11D
Subtotal (1 reel of 10000 units)
SGD860.00(exc. GST)
SGD0.086/unit
In Stock
TE Connectivity 1.5 kΩ Wirewound Resistor 9 W 5 %
  • RS Stock No. 762-9324
  • Mfr. Part No. EP9W1K5J
Subtotal (1 pack of 5 units)
SGD25.06(exc. GST)
SGD5.012/unit
In Stock
Panasonic, E Varistor 700 pF 100 A, Clamping 930 V, Varistor 560 V
  • RS Stock No. 287-448P
  • Mfr. Part No. ERZE14A561
Subtotal 10 units (supplied in a box)
SGD20.42(exc. GST)
SGD2.042/unit
In Stock
200 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Vishay, T93
  • RS Stock No. 788-5097P
  • Mfr. Part No. T93YA204KT20
Subtotal 5 units (supplied in a tube)
SGD11.54(exc. GST)
SGD2.308/unit
Temporarily out of stock
Abracon 12 MHz Crystal ±10 ppm Surface Mount 4-Pin 1.1 mm 5 mm 3.2mm
  • RS Stock No. 898-716
  • Mfr. Part No. ABM3B-12.000MHZ-10-1-U-T
Subtotal (1 tape of 10 units)
SGD8.72(exc. GST)
SGD0.872/unit
In Stock
Wurth Elektronik, WE-PD SMT Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Core, 47 μH 20 % 2.7 A Idc
  • RS Stock No. 217-7401P
  • Mfr. Part No. 7447706470
Subtotal 5 units (supplied on a continuous strip)
SGD8.41(exc. GST)
SGD1.682/unit
In Stock
Arcol Ohmite HS25 12R J, 12 Ω 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 160-720
  • Mfr. Part No. HS25 12R J
Subtotal (1 unit)
SGD7.38(exc. GST)
SGD7.38/unit
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