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

163500 Products showing for Passive Components

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KOA RK73H 5.1 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - RK73H1ETTP5101F
  • RS Stock No. 631-8262
  • Mfr. Part No. RK73H1ETTP5101F
Subtotal (1 pack of 100 units)
SGD1.70(exc. GST)
SGD0.017/unit
Temporarily out of stock
TDK 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 921-4157
  • Mfr. Part No. C2012X7R2A104K125AA
Subtotal (1 reel of 2000 units)
SGD92.00(exc. GST)
SGD0.046/unit
In Stock
Panasonic 330 μF Aluminium Electrolytic Capacitor 35V dc, Surface Solder - EEEFK1V331P 500
  • RS Stock No. 708-3475
  • Mfr. Part No. EEEFK1V331P
Subtotal (1 pack of 10 units)
SGD8.74(exc. GST)
SGD0.874/unit
In Stock
Bourns CR 2.7 kΩ, 1206 Thick Film Resistor 1 % Surface 250 mW - CR1206-FX-2701ELF
  • RS Stock No. 630-149P
  • Mfr. Part No. CR1206-FX-2701ELF
Subtotal 20 units (supplied on a continuous strip)
SGD0.64(exc. GST)
SGD0.032/unit
In Stock
Panasonic 2200 μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - EEUFC1H222 Radial Lead
  • RS Stock No. 315-0928
  • Mfr. Part No. EEUFC1H222
Subtotal (1 pack of 5 units)
SGD22.10(exc. GST)
SGD4.42/unit
In Stock
ROHM MCR 49.9 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 901-3478P
  • Mfr. Part No. MCR01MZPF4992
Subtotal 100 units (supplied on a continuous strip)
SGD1.00(exc. GST)
SGD0.01/unit
In Stock
Panasonic ERA 2.2 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6AEB222V
  • RS Stock No. 566-474
  • Mfr. Part No. ERA6AEB222V
Subtotal (1 pack of 5 units)
SGD0.67(exc. GST)
SGD0.134/unit
In Stock
Schurter, 3-134-830 4 A 250V ac 60Hz, Chassis Mount Power Line Filter, Quick Connect 1 Phase
  • RS Stock No. 725-612
  • Mfr. Part No. 3-134-830
Subtotal (1 bag of 5 units)
SGD198.07(exc. GST)
SGD39.614/unit
In Stock
Nichicon 270 μF Electrolytic Capacitor 35V, Surface Mount - GYB1V271MCQADNGS Radial Can
  • RS Stock No. 860-890P
  • Mfr. Part No. GYB1V271MCQADNGS
Subtotal 10 units (supplied on a continuous strip)
SGD10.89(exc. GST)
SGD1.089/unit
In Stock
PUI Audio 70 dBA Surface External 9 mm Piezo Buzzer Transducer 9 mm 1 V Min 25V Max
  • RS Stock No. 276-790P
  • Mfr. Part No. SMT-0940-T-3V-R
Subtotal 1 unit (supplied on a continuous strip)
SGD6.13(exc. GST)
SGD6.13/unit
In Stock
Vishay MMA0204 68 kΩ, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 678-7514P
  • Mfr. Part No. MMA02040C6802FB300
Subtotal 25 units (supplied on a continuous strip)
SGD2.40(exc. GST)
SGD0.096/unit
Temporarily out of stock
Wurth Elektronik 6.8 μF Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 839-6249
  • Mfr. Part No. 860240672001
Subtotal (1 bag of 25 units)
SGD4.725(exc. GST)
SGD0.189/unit
Temporarily out of stock
Arcol Ohmite 4.12 kΩ Metal Film Resistor 0.25 W 0.1 % MRA02074K12BTA015
  • RS Stock No. 487-6744P
  • Mfr. Part No. MRA02074K12BTA015
Subtotal 5 units (supplied as a tape)
SGD4.86(exc. GST)
SGD0.972/unit
In Stock
Vishay 19 mm Knob Diameter Black Potentiometer Knob for 0.25 in Shaft Screw Fix, ACCKMR1916NLT14
  • RS Stock No. 653-053
  • Mfr. Part No. ACCKMR1916NLT14
Subtotal (1 unit)
SGD6.49(exc. GST)
SGD6.49/unit
Last RS stock
TE Connectivity 1 kΩ Carbon Film Resistor 2 W 5 % CFR200J1K0
  • RS Stock No. 125-1137
  • Mfr. Part No. CFR200J1K0
Subtotal (1 bag of 20 units)
SGD5.40(exc. GST)
SGD0.27/unit
Temporarily out of stock
KEMET 3000 μF Capacitor 400V dc, Screw
  • RS Stock No. 144-3432
  • Mfr. Part No. ALS70A302KF400
Subtotal (1 unit)
SGD56.08(exc. GST)
SGD56.08/unit
In Stock
Panasonic 10000 μF Capacitor 16V dc, Radial - EEUHD1C103 Radial Lead
  • RS Stock No. 744-2029
  • Mfr. Part No. EEUHD1C103
Subtotal (1 unit)
SGD6.12(exc. GST)
SGD6.12/unit
In Stock
Yageo RT 7.5 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RT0402BRD077K5L
  • RS Stock No. 199-1368
  • Mfr. Part No. RT0402BRD077K5L
Subtotal (1 tape of 10 units)
SGD0.99(exc. GST)
SGD0.099/unit
In Stock
Yageo AC 5.1 kΩ, 0805 Thick Film Resistor ±1 % 0.13 W - AC0805FR-075K1L
  • RS Stock No. 197-8200
  • Mfr. Part No. AC0805FR-075K1L
Subtotal (1 reel of 5000 units)
SGD55.00(exc. GST)
SGD0.011/unit
Temporarily out of stock
Yageo PT 68 mΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.33 W - PT0603FR-7T0R068L
  • RS Stock No. 199-6009
  • Mfr. Part No. PT0603FR-7T0R068L
Subtotal (1 reel of 5000 units)
SGD645.00(exc. GST)
SGD0.129/unit
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