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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162700 Products showing for Passive Components

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KEMET Openable, Diameter 6 mm Ferrite Ring, Apertures: 1 18.5 mm 14 mm 15.5 mm, For Consumer Electronics
  • RS Stock No. 811-9133
  • Mfr. Part No. ESD-SR-S10
Subtotal (1 unit)
SGD3.78(exc. GST)
SGD3.78/unit
In Stock
KEMET PZB300 Paper Capacitor X2 + 2xY2 275V ac 275 V dc, Through Hole
  • RS Stock No. 121-5449
  • Mfr. Part No. PZB300MC11R30
Subtotal (1 unit)
SGD7.02(exc. GST)
SGD7.02/unit
In Stock
Wurth Elektronik Openable, Diameter 5 mm Ferrite Sleeve, Apertures: 1 23.7 mm 18.2 mm 40.5 mm, For Safety Relevant
  • RS Stock No. 814-9995
  • Mfr. Part No. 74271111S
Subtotal (1 unit)
SGD7.13(exc. GST)
SGD7.13/unit
Stocked by manufacturer
Phoenix Contact, VAL-SPP Surge Arrester 305V dc Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 488-367
  • Mfr. Part No. 1466212
Subtotal (1 unit)
SGD331.68(exc. GST)
SGD331.68/unit
Currently unavailable
Panasonic ERA8V 68 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8VPB6802V
  • RS Stock No. 259-7072
  • Mfr. Part No. ERA8VPB6802V
Subtotal (1 tape of 5 units)
SGD9.32(exc. GST)
SGD1.864/unit
In Stock
TE Connectivity, CFR50 Carbon Film, Through Hole 87 Resistor Kit 1740, 1 Ω → 10 MΩ
  • RS Stock No. 247-6702
  • Mfr. Part No. RES KIT CFR50RS
Subtotal (1 unit)
SGD763.81(exc. GST)
SGD763.81/unit
In Stock
TE Connectivity 4.7 kΩ Metal Oxide Resistor 3 W 5 % ROX3SJ4K7
  • RS Stock No. 214-2847
  • Mfr. Part No. ROX3SJ4K7
Subtotal (1 pack of 10 units)
SGD4.20(exc. GST)
SGD0.42/unit
Currently unavailable
Panasonic 4.7 μF Capacitor 450V dc, Radial, Through Hole - ECA2WM4R7 Radial Lead
  • RS Stock No. 228-7287
  • Mfr. Part No. ECA2WM4R7
Subtotal (1 pack of 5 units)
SGD5.30(exc. GST)
SGD1.06/unit
Last RS stock
TDK, SIMID, 2220 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 560 μH ±10 % 220 mA Idc Q:20
  • RS Stock No. 212-6024
  • Mfr. Part No. B82442T1564K000
Subtotal (1 tape of 5 units)
SGD7.80(exc. GST)
SGD1.56/unit
In Stock
Sonitron 100 dBA Panel Mount Multifunctional Internal 26 mm Buzzer 140 mm 5 V Min 35V Max
  • RS Stock No. 172-7043
  • Mfr. Part No. SCR535B
Subtotal (1 unit)
SGD50.23(exc. GST)
SGD50.23/unit
In Stock
ROHM MCR 4.7 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - MCR01MZPF4701
  • RS Stock No. 901-3437
  • Mfr. Part No. MCR01MZPF4701
Subtotal (1 bag of 100 units)
SGD1.20(exc. GST)
SGD0.012/unit
In Stock
Arcol Ohmite 200 Ω Metal Film Resistor 0.25 W 0.1 % MRA0207200RBTA015
  • RS Stock No. 487-5678
  • Mfr. Part No. MRA0207200RBTA015
Subtotal (1 pack of 5 units)
SGD4.92(exc. GST)
SGD0.984/unit
Temporarily out of stock
Vishay 100 μF MnO2 Tantalum Capacitor 20V dc, Through Hole, CTS13 Series
  • RS Stock No. 170-8610
  • Mfr. Part No. CTS13107X9020D2B
Subtotal (1 bag of 25 units)
SGD915.825(exc. GST)
SGD36.633/unit
In Stock
Panasonic 1800 μF Capacitor 10V dc, Radial, Through Hole - EEUFC1A182 Radial Lead
  • RS Stock No. 572-401
  • Mfr. Part No. EEUFC1A182
Subtotal (1 pack of 5 units)
SGD8.50(exc. GST)
SGD1.70/unit
In Stock
TE Connectivity 3520 68 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 1 W - 352068RJT
  • RS Stock No. 224-0244
  • Mfr. Part No. 352068RJT
Subtotal (1 pack of 10 units)
SGD1.74(exc. GST)
SGD0.174/unit
Temporarily out of stock
Wurth Elektronik, WE-VS Varistor 900 pF 1 A, Clamping 38 V, Varistor 24 V, 1206
  • RS Stock No. 669-4443P
  • Mfr. Part No. 82551140
Subtotal 5 units (supplied on a continuous strip)
SGD5.60(exc. GST)
SGD1.12/unit
In Stock
Vishay P16 100 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, P16NM104MAB15
  • RS Stock No. 790-4186P
  • Mfr. Part No. P16NM104MAB15
Subtotal 1 unit (supplied in a bag)
SGD40.89(exc. GST)
SGD40.89/unit
In Stock
Wurth Elektronik 120 μF Capacitor 400V dc, Through Hole Radial Lead
  • RS Stock No. 840-4747
  • Mfr. Part No. 860021381021
Subtotal (1 unit)
SGD8.00(exc. GST)
SGD8.00/unit
In Stock
Abracon, 32MHz Crystal Oscillator Crystal Oscillator, ±20 ppm HCMOS, 4-Pin Surface Mount
  • RS Stock No. 242-3292P
  • Mfr. Part No. FO7HHAAE32.0-T1
Subtotal 5 units (supplied on a continuous strip)
SGD18.08(exc. GST)
SGD3.616/unit
Temporarily out of stock
STMicroelectronics, ECMF2-40A100N, EMI Filter IC, 20000V dc 10.7GHz, 100 mA, μQFN-6L, Surface
  • RS Stock No. 248-5832
  • Mfr. Part No. ECMF2-40A100N6
Subtotal (1 reel of 3000 units)
SGD1,548.00(exc. GST)
SGD0.516/unit
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