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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170000 Products showing for Passive Components

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Panasonic, E Surge Absorber 350 pF 50 A, Clamping 710 V, Varistor 430 V
  • RS Stock No. 106-7957
  • Mfr. Part No. ERZE10A431
Subtotal (1 bag of 1000 units)
$357.00(exc. GST)
$0.357/unit
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Wurth Elektronik, WE-LHMI Shielded Wirewound Surface Mount Inductor 1.8 μH ±20 %
  • RS Stock No. 486-565
  • Mfr. Part No. 74437346018
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$36.28(exc. GST)
$36.28/unit
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Wurth Elektronik Ferrite Bead 1 mm (Surface) 0.5 mm (Axial Ferrite Bead), 260 Ω impedance at 100 MHz, 375 Ω impedance at
  • RS Stock No. 484-889P
  • Mfr. Part No. 74269242261
Subtotal 10 units (supplied on a continuous strip)
$1.73(exc. GST)
$0.173/unit
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Broadcom 5V dc Optical Encoder, Surface
  • RS Stock No. 566-065
  • Mfr. Part No. AEDR-9940ER-100
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$46.84(exc. GST)
$46.84/unit
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KEMET 100 μF Surface Polymer Capacitor, 6.3V dc
  • RS Stock No. 209-1456
  • Mfr. Part No. T598B107M006ATE055
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$1,352.00(exc. GST)
$0.676/unit
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Panasonic ECWFE Film Capacitor, ±5 %, 4.7 μF 450 V dc 450V ac, Through Hole
  • RS Stock No. 105-1085
  • Mfr. Part No. ECWFE2W475J
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$18.45(exc. GST)
$1.845/unit
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KEMET RC Capacitor 100 nF 22 Ω ±30 % 1 630 V dc, Through Hole, PMR209
  • RS Stock No. 206-7875
  • Mfr. Part No. PMR209MC6100M022R30
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$20.68(exc. GST)
$4.136/unit
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Wurth Elektronik, WE-KI Power Inductor 2.7 μH 5 % Q:20
  • RS Stock No. 485-342P
  • Mfr. Part No. 744762327A
Subtotal 20 units (supplied on a continuous strip)
$16.40(exc. GST)
$0.82/unit
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Wurth Elektronik, WE-PD Shielded Power Inductor with a Ferrite Core, 2.5 μH ±30 % 6.8 A Idc
  • RS Stock No. 485-737
  • Mfr. Part No. 7447715002
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$32.75(exc. GST)
$32.75/unit
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Panasonic 1800 μF Capacitor 10V dc, Through Hole - EEUFK1A182L Radial Lead
  • RS Stock No. 571-331
  • Mfr. Part No. EEUFK1A182L
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$10.29(exc. GST)
$2.058/unit
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Wurth Elektronik, WE-DD Shielded Power Inductor with a Ferrite Core, 20 μH ±20 % 2.7 A Idc
  • RS Stock No. 486-484
  • Mfr. Part No. 744870100
Subtotal (1 unit)
$43.23(exc. GST)
$43.23/unit
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TE Connectivity CRG 47 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRG0805F47R
  • RS Stock No. 134-5460
  • Mfr. Part No. CRG0805F47R
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$65.00(exc. GST)
$0.013/unit
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Schurter, FMAB NEO 20 A 250V ac 60Hz, Chassis Mount Power Line Filter, Quick Connect 1 Phase
  • RS Stock No. 725-777
  • Mfr. Part No. 3-143-624
Subtotal (1 bag of 2 units)
$197.35(exc. GST)
$98.675/unit
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Nichicon 680 μF Aluminium Electrolytic Capacitor 200V dc, Snap-in - LGX2D681MELB30
  • RS Stock No. 567-012
  • Mfr. Part No. LGX2D681MELB30
Subtotal (1 bag of 2 units)
$17.64(exc. GST)
$8.82/unit
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Bourns CR, 0402 Thick Film Resistor 1 % Surface 0.06 W - CR0402-FX-7502GLF
  • RS Stock No. 630-423
  • Mfr. Part No. CR0402-FX-7502GLF
Subtotal (1 tape of 20 units)
$0.58(exc. GST)
$0.029/unit
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Bourns PWR163 2 Ω, TO-252 Thick Film Resistor 1 % Surface 25 W - PWR163S-25-2R00FE
  • RS Stock No. 630-405
  • Mfr. Part No. PWR163S-25-2R00FE
Subtotal (1 tape of 2 units)
$16.27(exc. GST)
$8.135/unit
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Schurter, FMAB NEO 8 A 250V ac 60Hz, Chassis Mount Power Line Filter, Quick Connect 1 Phase
  • RS Stock No. 726-036P
  • Mfr. Part No. 3-143-610
Subtotal 1 unit (supplied in a pack)
$70.39(exc. GST)
$70.39/unit
Temporarily out of stock
Panasonic, V Surge Absorber 410 pF 25 A, Clamping 360 V, Varistor 220 V
  • RS Stock No. 110-1917
  • Mfr. Part No. ERZV10D221
Subtotal (1 bag of 1000 units)
$319.00(exc. GST)
$0.319/unit
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Wurth Elektronik 4.7 nF Surface Mount Ceramic Capacitor, 25V, ±5 %
  • RS Stock No. 486-216
  • Mfr. Part No. 885012009004
Subtotal (1 unit)
$8.06(exc. GST)
$8.06/unit
Temporarily out of stock
Wurth Elektronik, Through Hole Aluminium Capacitor Kit 29
  • RS Stock No. 212-0531
  • Mfr. Part No. 860160
Subtotal (1 unit)
$352.77(exc. GST)
$352.77/unit
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