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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160000 Products showing for Passive Components

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Vishay Thermistor, NTC Type 470 kΩ 8 mm 3.6 mm 3 mm
  • RS Stock No. 819-9158
  • Mfr. Part No. NTCLE203E3103GB0
Subtotal (1 unit)
SGD1.45(exc. GST)
SGD1.45/unit
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Panasonic 390 μF Polymer Capacitor 6.3V dc, Surface - 6SVPC390M
  • RS Stock No. 795-5468
  • Mfr. Part No. 6SVPC390M
Subtotal (1 pack of 5 units)
SGD10.76(exc. GST)
SGD2.152/unit
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IQD 20 MHz Crystal Unit ±30 ppm Surface Mount 2-Pin 4.3 mm 11.4 mm 4.9mm
  • RS Stock No. 148-4381
  • Mfr. Part No. LFXTAL003181
Subtotal (1 pack of 50 units)
SGD28.60(exc. GST)
SGD0.572/unit
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Vishay 150 μF Capacitor 400V dc, Snap-in - MAL215936151E3 Radial Lead
  • RS Stock No. 749-2364
  • Mfr. Part No. MAL215936151E3
Subtotal (1 unit)
SGD15.94(exc. GST)
SGD15.94/unit
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Murata Power Solutions 10 mH Leaded Inductor, Max SRF:400 kHz, Q:51, 400 mA Idc, 4.34 Ω Rdc, 1400
  • RS Stock No. 106-7738
  • Mfr. Part No. 1410604C
Subtotal (1 box of 25 units)
SGD96.20(exc. GST)
SGD3.848/unit
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RS PRO 47 Ω Metal Film Resistor 0.4 W 0.25 %
  • RS Stock No. 174-2752
Subtotal (1 pack of 100 units)
SGD11.50(exc. GST)
SGD0.115/unit
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Panasonic ERJ H2G 3.3 Ω, 0402 Thick Film Surface Mount Resistor ±5 % Surface 0.1 W - ERJH2GJ3R3X
  • RS Stock No. 228-4514
  • Mfr. Part No. ERJH2GJ3R3X
Subtotal (1 tape of 100 units)
SGD6.90(exc. GST)
SGD0.069/unit
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RS PRO 10 mΩ, 2512 Thick Film Resistor ±1 % 1 W - RSPHVR12FTFT1005
  • RS Stock No. 256-7827
Subtotal (1 tape of 25 units)
SGD31.00(exc. GST)
SGD1.24/unit
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Infineon MEMS Oscillator, 4-Pin TLGA IM68A130V01XTMA1
  • RS Stock No. 273-2761
  • Mfr. Part No. IM68A130V01XTMA1
Subtotal (1 reel of 5000 units)
SGD7,045.00(exc. GST)
SGD1.409/unit
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Panasonic 220 μF Capacitor 63V dc, Radial Radial Lead
  • RS Stock No. 628-3841P
  • Mfr. Part No. EEUFC1J221X
Subtotal 5 units (supplied in a bag)
SGD7.30(exc. GST)
SGD1.46/unit
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Vishay 357 20 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 357B2203MAB251S22
  • RS Stock No. 460-7469
  • Mfr. Part No. 357B2203MAB251S22
Subtotal (1 unit)
SGD42.31(exc. GST)
SGD42.31/unit
Temporarily out of stock
Littelfuse, LA Metal Oxide Varistor 180 pF 10 A, Clamping 2700 V, Varistor 228 V
  • RS Stock No. 170-9996
  • Mfr. Part No. V130LA2P
Subtotal (1 bag of 1500 units)
SGD253.50(exc. GST)
SGD0.169/unit
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Wurth Elektronik, WE-HCI, 7050 Shielded Wirewound Surface Mount Inductor with a WE-Superflux Core, 6.5 μH Flat Wire
  • RS Stock No. 736-1964P
  • Mfr. Part No. 744314650
Subtotal 1 unit (supplied on a continuous strip)
SGD5.21(exc. GST)
SGD5.21/unit
Temporarily out of stock
Vishay 2200 μF Capacitor 35V dc, Radial, Through Hole - MAL225050222E3 Radial Lead
  • RS Stock No. 159-5963
  • Mfr. Part No. MAL225050222E3
Subtotal (1 box of 100 units)
SGD372.60(exc. GST)
SGD3.726/unit
In Stock
Panasonic ERJ 18 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - ERJU06F1802V
  • RS Stock No. 172-3928
  • Mfr. Part No. ERJU06F1802V
Subtotal (1 reel of 5000 units)
SGD155.00(exc. GST)
SGD0.031/unit
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Eaton, FLAT-PAC 3, 0703 Shielded Wirewound Surface Mount Inductor with a Composite Iron Powder Core, 15 μH ±15 % 2.5 A
  • RS Stock No. 770-0451
  • Mfr. Part No. FP3-150-R
Subtotal (1 bag of 5 units)
SGD22.20(exc. GST)
SGD4.44/unit
Currently unavailable
Wurth Elektronik, WE-HCIA, 1050 Shielded Surface Mount Inductor 5.2 μH Flat Wire Winding ±20 % 10 A Idc
  • RS Stock No. 248-8184
  • Mfr. Part No. 784325055
Subtotal (1 reel of 700 units)
SGD3,905.30(exc. GST)
SGD5.579/unit
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Arcol HS25E3 10R F M145, 10 Ω 25 W Wirewound Chassis Mount Resistor ±1 %
  • RS Stock No. 195-4054
  • Mfr. Part No. HS25E3 10R F M145
Subtotal (1 bag of 30 units)
SGD378.18(exc. GST)
SGD12.606/unit
Last RS stock
TE Connectivity 3430 33 kΩ, 1225 Thick Film Surface Mount Fixed Resistor 1 % Surface 3 W
  • RS Stock No. 274-7110P
  • Mfr. Part No. 3430A3F33RTE
Subtotal 10 units (supplied on a continuous strip)
SGD8.49(exc. GST)
SGD0.849/unit
Temporarily out of stock
Panasonic 330 μF Capacitor 25V dc, Surface Solder 500
  • RS Stock No. 166-8248
  • Mfr. Part No. EEEFK1E331GP
Subtotal (1 reel of 500 units)
SGD247.50(exc. GST)
SGD0.495/unit
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