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
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Variable Resistors

163165 Products showing for Passive Components

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Vishay MCT 200 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.12 W - MCT06030C2003FP500
  • RS Stock No. 188-6149
  • Mfr. Part No. MCT06030C2003FP500
Subtotal (100 units, on tapes of 100)
SGD3.40(exc. GST)
SGD0.034/unit
Temporarily out of stock
Eaton, DRA, 0125 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 22 μH ±20 % 4.74 A Idc
  • RS Stock No. 169-9679
  • Mfr. Part No. DRA125-220-R
Subtotal (600 units, on reels of 600)
SGD1,020.00(exc. GST)
SGD1.70/unit
In Stock
TE Connectivity 330 mΩ Wirewound Resistor 5 W 5 % SQMW5R33J
  • RS Stock No. 199-7618
  • Mfr. Part No. SQMW5R33J
Subtotal (5 units, in packs of 5)
SGD6.90(exc. GST)
SGD1.38/unit
In Stock
Vishay 33 μF Tantalum Tantalum Capacitor 10V dc, Surface, TMCU Series
  • RS Stock No. 188-2374
  • Mfr. Part No. TMCUB1A336KTRF
Subtotal (10 units, in packs of 10)
SGD6.15(exc. GST)
SGD0.615/unit
In Stock
Panasonic 560 μF Polymer Capacitor 4V dc, Surface
  • RS Stock No. 210-5598P
  • Mfr. Part No. 4SVT560M
Subtotal (2 units, supplied on a continuous strip)
SGD8.48(exc. GST)
SGD4.24/unit
In Stock
Bourns CR 19.1 kΩ, 0402 Thick Film Resistor 1 % Surface 1 W - CR0402-FX-1912GLF
  • RS Stock No. 630-324P
  • Mfr. Part No. CR0402-FX-1912GLF
Subtotal (20 units, supplied on a continuous strip)
SGD0.14(exc. GST)
SGD0.007/unit
Temporarily out of stock
PUI Audio Single Electric 0.21 mm Piezo Buzzer Component 12 mm 30V Max
  • RS Stock No. 732-882
  • Mfr. Part No. AB1290B
Subtotal (1 unit, on tapes of 1)
SGD1.18(exc. GST)
SGD1.18/tape
Temporarily out of stock
2 mΩ, Surface Trimmer Potentiometer, Gull Wing 0.25 W Top Adjust Nidec Components, ST4
  • RS Stock No. 244-4427P
  • Mfr. Part No. ST-4ETB103
Subtotal (5 units, supplied on a continuous strip)
SGD8.80(exc. GST)
SGD1.76/unit
In Stock
Vishay 220 kΩ Metal Film Resistor 3 W 5 % PR03000202203JAC00
  • RS Stock No. 683-5934
  • Mfr. Part No. PR03000202203JAC00
Subtotal (10 units, in packs of 10)
SGD4.55(exc. GST)
SGD0.455/unit
In Stock
Panasonic ERA 953 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6AEB9530V
  • RS Stock No. 742-6327
  • Mfr. Part No. ERA6AEB9530V
Subtotal (5000 units, on reels of 5000)
SGD295.00(exc. GST)
SGD0.059/unit
Temporarily out of stock
Panasonic ERJPC6 1650 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6B1651V
  • RS Stock No. 788-927P
  • Mfr. Part No. ERJPC6B1651V
Subtotal (10 units, supplied on a continuous strip)
SGD1.08(exc. GST)
SGD0.108/unit
Limited stock
Panasonic 1200 μF Electrolytic Capacitor 35V, Radial - EEUFR1V122B Surface Mount
  • RS Stock No. 781-686P
  • Mfr. Part No. EEUFR1V122B
Subtotal (5 units, supplied in a bag)
SGD11.07(exc. GST)
SGD2.214/unit
Currently unavailable
Murata 10 μF Multilayer Ceramic Capacitor, 25V dc, 10 %, Surface
  • RS Stock No. 247-8205
  • Mfr. Part No. GRT21BC71E106KE13L
Subtotal (10 units, on tapes of 10)
SGD3.02(exc. GST)
SGD0.302/unit
Currently unavailable
TE Connectivity RN73 8.06 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RN73C2A8R06B
  • RS Stock No. 614-4443
  • Mfr. Part No. RN73C2A8R06B
Subtotal (5 units, in packs of 5)
SGD6.13(exc. GST)
SGD1.226/unit
Temporarily out of stock
Yageo SR 51 Ω, 0402 Thick Film Surface Mount Resistor ±5 % 0.06 W - SR0402JR-0751RL
  • RS Stock No. 197-8379
  • Mfr. Part No. SR0402JR-0751RL
Subtotal (10000 units, on reels of 10000)
SGD640.00(exc. GST)
SGD0.064/unit
In Stock
Panasonic 100 μF Aluminium Electrolytic Capacitor 25V dc, Surface Solder - EEEFK1E101XP 900
  • RS Stock No. 708-3428
  • Mfr. Part No. EEEFK1E101XP
Subtotal (25 units, in packs of 25)
SGD10.10(exc. GST)
SGD0.404/unit
Last RS stock
TE Connectivity 3520 470 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 1 W - 3520470RJT
  • RS Stock No. 161-4941
  • Mfr. Part No. 3520470RJT
Subtotal (4000 units, on reels of 4000)
SGD416.00(exc. GST)
SGD0.104/unit
Temporarily out of stock
Bourns, GDT225EX Series 800 V 120 kA, Surface Mount Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 854-286
  • Mfr. Part No. GDT225EX-80-A-BX
Subtotal (1 unit)
SGD83.68(exc. GST)
SGD83.68/unit
Currently unavailable
Wurth Elektronik, WE-XHMA, 6030 Shielded Surface Mount Inductor with a Composite Core Core, 4.7 μH ±20 % 4.7 A Idc
  • RS Stock No. 248-8253
  • Mfr. Part No. 78439344047
Subtotal (1000 units, on reels of 1000)
SGD3,200.00(exc. GST)
SGD3.20/unit
Last RS stock
TE Connectivity RQ73 1.1 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.2 W - RQ73C2A1K1BTDF
  • RS Stock No. 187-2767
  • Mfr. Part No. RQ73C2A1K1BTDF
Subtotal (25 units, on tapes of 25)
SGD24.95(exc. GST)
SGD0.998/unit
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