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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EMI Filters & Protection
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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163936 Products showing for Passive Components

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1116 of 999+
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TE Connectivity, 3627, 3627 Unshielded Surface Mount Inductor with a Ferrite Core, 10 μH 10 % 400 mA Idc
  • RS Stock No. 171-309P
  • Mfr. Part No. 3627453226100K
Subtotal 20 units (supplied on a continuous strip)
SGD23.00(exc. GST)
SGD1.15/unit
In Stock
TE Connectivity, 3627, 3627 Unshielded Surface Mount Inductor with a Ferrite Core, 390 μH 10 % 50 mA Idc
  • RS Stock No. 171-280P
  • Mfr. Part No. 3627322520391K
Subtotal 20 units (supplied on a continuous strip)
SGD19.68(exc. GST)
SGD0.984/unit
Temporarily out of stock
Vishay, SGIHLP, Bulk Shielded Inductor with a Shielded Core, 22 μH ±20 % 11.7 A Idc
  • RS Stock No. 672-004
  • Mfr. Part No. SGIHLP73HFB220M81P
Subtotal (1 tray of 5 units)
SGD1,186.03(exc. GST)
SGD237.206/unit
In Stock
Wurth Elektronik, WE-MK, 0603 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 22 nH Multilayer ±2 % 300
  • RS Stock No. 245-8499
  • Mfr. Part No. 7447860122G
Subtotal (1 tape of 10 units)
SGD1.19(exc. GST)
SGD0.119/unit
Currently unavailable
TE Connectivity CPF 178 kΩ, 0402 Thin Film, Thin Film ±0.1 % Surface 0.06 W - CPF0402B178KE1
  • RS Stock No. 123-7060
  • Mfr. Part No. CPF0402B178KE1
Subtotal (1 reel of 1000 units)
SGD234.00(exc. GST)
SGD0.234/unit
Temporarily out of stock
Panasonic ERJPC3 169 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B1693V
  • RS Stock No. 789-397P
  • Mfr. Part No. ERJPC3B1693V
Subtotal 10 units (supplied on a continuous strip)
SGD0.82(exc. GST)
SGD0.082/unit
In Stock
KEMET 10 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 133-5645
  • Mfr. Part No. C0603C103K5RACAUTO
Subtotal (1 pack of 250 units)
SGD11.75(exc. GST)
SGD0.047/unit
Last RS stock
Nichicon 47 μF Capacitor 35V dc, Surface Solder
  • RS Stock No. 243-7346P
  • Mfr. Part No. UWD1V470MCL1GS
Subtotal 10 units (supplied on a continuous strip)
SGD4.20(exc. GST)
SGD0.42/unit
In Stock
Abracon, 24MHz Clock Oscillator Crystal Oscillator HCMOS, TTL, 4-Pin Surface Mount ASFL1-24.000MHZ-L-T
  • RS Stock No. 240-3586
  • Mfr. Part No. ASFL1-24.000MHZ-L-T
Subtotal (1 reel of 1000 units)
SGD1,689.00(exc. GST)
SGD1.689/unit
In Stock
Panasonic 33 μF Polymer Capacitor 25V, Surface - 25SVPK33M
  • RS Stock No. 249-1182P
  • Mfr. Part No. 25SVPK33M
Subtotal 10 units (supplied on a continuous strip)
SGD11.30(exc. GST)
SGD1.13/unit
Currently unavailable
ROHM ESR18 62 kΩ, 1206 Thick Film Surface Mount Resistor ±5 % 0.5 W
  • RS Stock No. 264-2131P
  • Mfr. Part No. ESR18EZPJ623
Subtotal 100 units (supplied on a continuous strip)
SGD9.40(exc. GST)
SGD0.094/unit
Temporarily out of stock
Panasonic 22 μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - EEUFC2A220 Radial Lead
  • RS Stock No. 108-4032
  • Mfr. Part No. EEUFC2A220
Subtotal (1 bag of 200 units)
SGD64.60(exc. GST)
SGD0.323/unit
Temporarily out of stock
Panasonic ERJPC6 205000 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 → 0.5 % Surface 0.25 W -
  • RS Stock No. 788-951P
  • Mfr. Part No. ERJPC6B2053V
Subtotal 10 units (supplied on a continuous strip)
SGD1.08(exc. GST)
SGD0.108/unit
In Stock
Vishay 120 Ω Metal Film Resistor 0.4 W 5 % SFR2500001200JA500
  • RS Stock No. 165-0779
  • Mfr. Part No. SFR2500001200JA500
Subtotal (1 pack of 50 units)
SGD4.55(exc. GST)
SGD0.091/unit
In Stock
RS Better World
Vishay MMA0204 2.7 Ω, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W - MMA02040C2708FB300
  • RS Stock No. 180-3768
  • Mfr. Part No. MMA02040C2708FB300
Subtotal (1 reel of 500 units)
SGD45.50(exc. GST)
SGD0.091/unit
In Stock
AVX 10 μF Tantalum Tantalum Capacitor 25V dc, Surface, TAJ Series
  • RS Stock No. 136-4449
  • Mfr. Part No. TAJC106K025RNJ
Subtotal (1 bag of 20 units)
SGD15.50(exc. GST)
SGD0.775/unit
Temporarily out of stock
Roxburgh EMC 18 mH Ferrite Common Mode Choke, 1 A Idc, 640 mΩ Rdc 250V ac, CMV
  • RS Stock No. 188-9078
  • Mfr. Part No. CMV10
Subtotal (1 unit)
SGD6.93(exc. GST)
SGD6.93/unit
In Stock
Block, LR3 690V ac 30 A Line Reactor
  • RS Stock No. 739-6446
  • Mfr. Part No. LR3 40-4/30
Subtotal (1 unit)
SGD425.89(exc. GST)
SGD425.89/unit
Stocked by manufacturer
Schneider Electric, LVR7 690V 20.9 A Sine Wave Filter
  • RS Stock No. 354-454
  • Mfr. Part No. LVR07250A69T
Subtotal (1 unit)
SGD2,385.02(exc. GST)
SGD2,385.02/unit
In Stock
KEMET C44U Polypropylene Capacitor, ±10 %, 2740 μF 900 V dc, Stud Mount
  • RS Stock No. 228-8833
  • Mfr. Part No. C44UOGT7274M32K
Subtotal (1 unit)
SGD314.19(exc. GST)
SGD314.19/unit
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