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.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

163771 Products showing for Passive Components

Sort By
87 of 999+
Temporarily out of stock
Schaffner, FN2070 36 A 250V ac/dc 400Hz, Chassis Mount EMI Filter, Stud 1 Phase
  • RS Stock No. 170-5198
  • Mfr. Part No. FN2070-36-08
Subtotal (10 units, in boxes of 10)
SGD1,381.00(exc. GST)
SGD138.10/unit
Currently unavailable
VPG Foil Resistors 100 Ω Metal Foil Resistor 0.5 W 0.01 %
  • RS Stock No. 201-9848P
  • Mfr. Part No. RCKO2 100R 0.01%
Subtotal (1 unit, supplied in a bag)
SGD38.59(exc. GST)
SGD38.59/unit
In Stock
Littelfuse, LA Metal Oxide Varistor 250 pF 100 A, Clamping 2700 V, Varistor 184 to 1800 V, Radial Leaded Ceramic Disc
  • RS Stock No. 170-9948
  • Mfr. Part No. V1000LA160BP
Subtotal (200 units, in bags of 200)
SGD503.60(exc. GST)
SGD2.518/unit
In Stock
Yageo 1 kΩ Metal Film Metal Film Fixed Resistor 1 W 1 %
  • RS Stock No. 199-7535P
  • Mfr. Part No. FMP100JT-52-1K
Subtotal (100 units, supplied in a box)
SGD7.60(exc. GST)
SGD0.076/unit
In Stock
RS PRO 470 kΩ Carbon Film Resistor 2 W 5 %
  • RS Stock No. 707-8974
Subtotal (10 units, in packs of 10)
SGD1.70(exc. GST)
SGD0.17/unit
In Stock
Eaton 10 F Supercapacitor -10 to 30 % Tolerance, Supercap HV 2.7V dc, Through Hole
  • RS Stock No. 763-7769
  • Mfr. Part No. HV1030-2R7106-R
Subtotal (1 unit)
SGD6.11(exc. GST)
SGD6.11/unit
In Stock
Bourns CR0603 2 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CR0603-FX-2001ELF
  • RS Stock No. 740-8836
  • Mfr. Part No. CR0603-FX-2001ELF
Subtotal (50 units, in packs of 50)
SGD0.70(exc. GST)
SGD0.014/unit
In Stock
Vishay 470 μF Capacitor 400V dc, Through Hole
  • RS Stock No. 206-8762
  • Mfr. Part No. MAL219366471E3
Subtotal (1 unit)
SGD22.50(exc. GST)
SGD22.50/unit
Currently unavailable
Bourns PRS11R 10 kΩ Rotary Audio Potentiometer 1-Turns 1-Gang PCB
  • RS Stock No. 269-2431
  • Mfr. Part No. PRS11R-225F-S103B1
Subtotal (1 unit)
SGD4.53(exc. GST)
SGD4.53/unit
In Stock
Panasonic 22 μF Capacitor 160V dc, Radial, Through Hole - EEUED2C220 Radial Lead
  • RS Stock No. 434-0166
  • Mfr. Part No. EEUED2C220
Subtotal (5 units, in packs of 5)
SGD5.15(exc. GST)
SGD1.03/unit
In Stock
Panasonic 220 μF Capacitor 16V dc, Radial, Through Hole - ECA1CM221 Radial Lead
  • RS Stock No. 228-6666
  • Mfr. Part No. ECA1CM221
Subtotal (5 units, in packs of 5)
SGD1.77(exc. GST)
SGD0.354/unit
Currently unavailable
Wurth Elektronik, WE-MK, 0603 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 1.2 nH Multilayer ±2 % 300
  • RS Stock No. 245-8465
  • Mfr. Part No. 7447860012G
Subtotal (10 units, on tapes of 10)
SGD1.22(exc. GST)
SGD0.122/unit
Temporarily out of stock
KEMET 2400 μF Capacitor 450V dc, Screw - ALS70A242KF450
  • RS Stock No. 144-3151
  • Mfr. Part No. ALS70A242KF450
Subtotal (24 units, in boxes of 24)
SGD1,253.856(exc. GST)
SGD52.244/unit
In Stock
Wurth Elektronik, Surface X5R, X7R Capacitor Kit 4320
  • RS Stock No. 871-1701
  • Mfr. Part No. 885050
Subtotal (1 kit)
SGD249.85(exc. GST)
SGD249.85/kit
In Stock
Vishay WFM 150 mΩ, 2010 Metal Strip Surface Mount Resistor ±1 % 2 W
  • RS Stock No. 188-0697P
  • Mfr. Part No. WFMB2010R1500FEA
Subtotal (5 units, supplied on a continuous strip)
SGD12.16(exc. GST)
SGD2.432/unit
In Stock
Vishay 10 Ω Wirewound Resistor 2 W 1 % RLP0210R00FS14
  • RS Stock No. 788-8068
  • Mfr. Part No. RLP0210R00FS14
Subtotal (5 units, in packs of 5)
SGD73.85(exc. GST)
SGD14.77/unit
Last RS stock
Vishay 4.7 nF Multilayer Ceramic Capacitor, 200V dc, ±5 %, Through Hole Radial
  • RS Stock No. 210-7821
  • Mfr. Part No. K472J20C0GK53H5G
Subtotal (10 units, in packs of 10)
SGD11.00(exc. GST)
SGD1.10/unit
In Stock
Vishay 2.49 Ω Thin Film Resistor 0.6 W 1 % MRS25000C2498FCT00
  • RS Stock No. 683-3493
  • Mfr. Part No. MRS25000C2498FCT00
Subtotal (25 units, in packs of 25)
SGD4.125(exc. GST)
SGD0.165/unit
In Stock
Yageo 1.5 kΩ Metal Film Metal Film Fixed Resistor 0.5 W 1 % MFR50SFTE52-1K5
  • RS Stock No. 199-7678
  • Mfr. Part No. MFR50SFTE52-1K5
Subtotal (100 units, on tapes of 100)
SGD4.50(exc. GST)
SGD0.045/unit
In Stock
Bourns, SRP6540 Shielded Multilayer Surface Mount Inductor with a Carbonyl Powder Core, 15 μH ±20 % 2.9 A Idc
  • RS Stock No. 223-1840
  • Mfr. Part No. SRP6540-150M
Subtotal (5 units, on tapes of 5)
SGD7.70(exc. GST)
SGD1.54/unit
1
87
8189
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links