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

158965 Products showing for Passive Components

28 of 999+
In Stock
Wurth Elektronik Openable, Diameter 5 mm Ferrite Sleeve, Apertures: 1 Key 18.8 mm 13.2 mm 32.5 mm, For General
  • RS Stock No. 814-9992
  • Mfr. Part No. 74271142S
Subtotal (1 unit)
SGD6.60(exc. GST)
SGD6.60/unit
In Stock
KEMET R4Y Film Capacitor, ±10 %, 15 nF 500 V dc 600V ac, Through Hole
  • RS Stock No. 263-0019
  • Mfr. Part No. R4Y5N21505000K
Subtotal (1 unit)
SGD3.91(exc. GST)
SGD3.91/unit
Temporarily out of stock
Vishay 100 nF Multilayer Ceramic Capacitor, 50V dc, ±20 %, Through Hole Radial
  • RS Stock No. 181-6508
  • Mfr. Part No. K104M15X7RF53L2
Subtotal (1 box of 5000 units)
SGD365.00(exc. GST)
SGD0.073/unit
In Stock
Murata 1 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 846-7287
  • Mfr. Part No. GRM155R61E105KA12D
Subtotal (1 pack of 250 units)
SGD6.50(exc. GST)
SGD0.026/unit
In Stock
Bourns 3590 5 kΩ Rotary Potentiometer 10-Turns 1-Gang Panel Mount, 3590S-2-502L
  • RS Stock No. 107-0779
  • Mfr. Part No. 3590S-2-502L
Subtotal (1 unit)
SGD29.42(exc. GST)
SGD29.42/unit
In Stock
Sifam 11.5 mm Knob Diameter Black Potentiometer Knob for 3.2 mm Shaft Circular, S110125-BLK
  • RS Stock No. 225-669
  • Mfr. Part No. S110125-BLK
Subtotal (1 pack of 10 units)
SGD45.98(exc. GST)
SGD4.598/unit
In Stock
Vishay CRCW 3.6 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W
  • RS Stock No. 679-0324P
  • Mfr. Part No. CRCW06033K60FKEA
Subtotal 50 units (supplied on a continuous strip)
SGD1.20(exc. GST)
SGD0.024/unit
Temporarily out of stock
KEMET 4.7 μH Nickel Zinc Ferrite Core Coil Inductor, 3.2 A Idc, 30 mΩ Rdc, SBCP
  • RS Stock No. 265-2735
  • Mfr. Part No. SBCP-87HY4R7H
Subtotal (1 unit)
SGD2.70(exc. GST)
SGD2.70/unit
In Stock
Murata 33 pF Multilayer Ceramic Capacitor, 1kV dc, ±5 %, Surface
  • RS Stock No. 114-0379P
  • Mfr. Part No. GRM31A5C3A330JW01D
Subtotal 100 units (supplied on a continuous strip)
SGD17.90(exc. GST)
SGD0.179/unit
Last RS stock
Vishay CRCW 4.75 mΩ, 0805 Thick Film Surface Mount Resistor ±1 % Surface 0.125 W - CRCW08054M75FKEA
  • RS Stock No. 182-5201
  • Mfr. Part No. CRCW08054M75FKEA
Subtotal (1 reel of 1000 units)
SGD23.00(exc. GST)
SGD0.023/unit
In Stock
Panasonic 1000 μF Capacitor 63V dc, Radial - ECA1JHG102 Radial Lead
  • RS Stock No. 365-4408
  • Mfr. Part No. ECA1JHG102
Subtotal (1 pack of 5 units)
SGD13.80(exc. GST)
SGD2.76/unit
In Stock
Fair-Rite Openable, Diameter 10.15 mm Ferrite Core, Apertures: 1 11 mm 32.2 mm 22.1 mm, For EMI Suppression
  • RS Stock No. 219-2656
  • Mfr. Part No. 0443167251
Subtotal (1 unit)
SGD3.76(exc. GST)
SGD3.76/unit
In Stock
Panasonic 1000 μF Aluminium Electrolytic Capacitor 25V dc, Through Hole - EEUFR1E102 Radial Lead
  • RS Stock No. 739-6828
  • Mfr. Part No. EEUFR1E102
Subtotal (1 pack of 5 units)
SGD5.46(exc. GST)
SGD1.092/unit
In Stock
Vishay CRCW 10 Ω, 1206 Thick Film Surface Mount Resistor ±1 % Surface 0.5 W
  • RS Stock No. 812-1782P
  • Mfr. Part No. CRCW120610R0FKEAHP
Subtotal 25 units (supplied on a continuous strip)
SGD2.95(exc. GST)
SGD0.118/unit
Last RS stock
TDK B32521 Film Capacitor 1 μF 40V ac 63 V dc, Through Hole 2
  • RS Stock No. 335-038
  • Mfr. Part No. B32521C0105J000
Subtotal (1 pack of 10 units)
SGD6.88(exc. GST)
SGD0.688/unit
In Stock
Yageo RC_L 330 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W - RC0603FR-07330KL
  • RS Stock No. 199-5540
  • Mfr. Part No. RC0603FR-07330KL
Subtotal (1 tape of 100 units)
SGD1.00(exc. GST)
SGD0.01/unit
In Stock
KEMET R46 Film Capacitor X2, ±20 %, 220 nF 560 V dc 275V ac, Through Hole
  • RS Stock No. 165-0304
  • Mfr. Part No. R46KI322040P0M
Subtotal (1 pack of 10 units)
SGD5.38(exc. GST)
SGD0.538/unit
In Stock
Bourns, SRP1265A, 1265 Shielded Wirewound Surface Mount Inductor with a Carbonyl Powder Core, 6.8 μH ±20 % 11.5 A Idc
  • RS Stock No. 819-3529P
  • Mfr. Part No. SRP1265A-6R8M
Subtotal 5 units (supplied on a continuous strip)
SGD9.10(exc. GST)
SGD1.82/unit
In Stock
RS PRO, 6.8 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 131-1308
Subtotal (1 unit)
SGD16.20(exc. GST)
SGD16.20/unit
Unavailable
Bourns CR0603 10kΩ, 0603 (1608M) Thick Film SMD Resistor ±1% 0.1W
  • RS Stock No. 740-8805P
  • Mfr. Part No. CR0603-FX-1002ELF
Subtotal 50 units (supplied on a continuous strip)
SGD0.75(exc. GST)
SGD0.015/unit
1
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