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

160383 Products showing for Passive Components

Sort By
46 of 999+
Temporarily out of stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 50V, Surface - ECEA1HKA100 Solder
  • RS Stock No. 781-602
  • Mfr. Part No. ECEA1HKA100
Subtotal (1 pack of 5 units)
SGD1.42(exc. GST)
SGD0.284/unit
In Stock
RS PRO 1 kΩ Carbon Film Resistor 1 W 5 %
  • RS Stock No. 707-8669
Subtotal (1 pack of 10 units)
SGD2.93(exc. GST)
SGD0.293/unit
In Stock
Panasonic 330 μF Capacitor 16V dc, Radial - EEUFC1C331 Radial Lead
  • RS Stock No. 315-0451
  • Mfr. Part No. EEUFC1C331
Subtotal (1 pack of 5 units)
SGD2.64(exc. GST)
SGD0.528/unit
In Stock
RS PRO 97 dB Panel Mount Continuous Internal 20 mm Piezo Buzzer Component 4 V dc Min 28V dc Max
  • RS Stock No. 724-3172
Subtotal (1 unit)
SGD11.75(exc. GST)
SGD11.75/unit
Limited stock
Sonitron Piezoelectric Miniature Speaker, 1160 nF 20 kHz 60 V Pk-Pk
  • RS Stock No. 786-8948
  • Mfr. Part No. SPS-68-T00
Subtotal (1 unit)
SGD49.10(exc. GST)
SGD49.10/unit
Being discontinued
Rubycon 10 μF Capacitor 63V dc, Through Hole - 63YXF10M5X11 Radial Lead
  • RS Stock No. 191-7892
  • Mfr. Part No. 63YXF10M5X11
Subtotal (1 pack of 5 units)
SGD0.97(exc. GST)
SGD0.194/unit
In Stock
RS PRO P25 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 173-0757
Subtotal (1 box of 50 units)
SGD556.00(exc. GST)
SGD11.12/unit
In Stock
CHEMI-CON 330 nF Multilayer Ceramic Capacitor, 250V dc, ±20 %, Through Hole Solder
  • RS Stock No. 182-7585
  • Mfr. Part No. KTD251B334M32A0B00
Subtotal (1 pack of 10 units)
SGD15.87(exc. GST)
SGD1.587/unit
In Stock
Bourns 1 ppr Pulse Mechanical Rotary Encoder with a 5 mm Knurl Shaft
  • RS Stock No. 246-3264
  • Mfr. Part No. PTV09A-4015U-B103
Subtotal (1 unit)
SGD1.22(exc. GST)
SGD1.22/unit
In Stock
Fair-Rite Openable, Diameter 10.15 mm Ferrite Core, Apertures: 1 11.7 mm 39.4 mm 23.7 mm, For EMI Suppression
  • RS Stock No. 466-9120
  • Mfr. Part No. 0431167281
Subtotal (1 unit)
SGD5.93(exc. GST)
SGD5.93/unit
In Stock
Yageo 47 kΩ Metal Film Metal Film Fixed Resistor 0.6 W 1 % MF0207FTE52-47K
  • RS Stock No. 199-7651
  • Mfr. Part No. MF0207FTE52-47K
Subtotal (1 tape of 100 units)
SGD3.50(exc. GST)
SGD0.035/unit
In Stock
Nova, Through Hole Aluminium Capacitor Kit 270
  • RS Stock No. 112-6721
  • Mfr. Part No. CCC-14
Subtotal (1 unit)
SGD161.00(exc. GST)
SGD161.00/unit
In Stock
KEMET 680 μF Capacitor 500V dc, Screw
  • RS Stock No. 381-9453
  • Mfr. Part No. ALS30A681KF500
Subtotal (1 unit)
SGD55.19(exc. GST)
SGD55.19/unit
In Stock
RS PRO Clip for use with 76 mm Dia Capacitor Nylon
  • RS Stock No. 203-5755
Subtotal (1 pack of 5 units)
SGD17.49(exc. GST)
SGD3.498/unit
Last RS stock
Rubycon 47 μF Capacitor 35V dc, Radial, Through Hole
  • RS Stock No. 224-4268P
  • Mfr. Part No. 35YXF47M6.3X11
Subtotal 5 units (supplied in a bag)
SGD2.58(exc. GST)
SGD0.516/unit
Temporarily out of stock
CHEMI-CON 330 μF Capacitor 450V dc, Snap-in - ELXS451VSN331MR40S
  • RS Stock No. 914-3746
  • Mfr. Part No. ELXS451VSN331MR40S
Subtotal (1 unit)
SGD10.08(exc. GST)
SGD10.08/unit
In Stock
Vishay 470 μF Capacitor 50V dc, Radial, Through Hole - MAL213651471E3 Solder
  • RS Stock No. 393-8009
  • Mfr. Part No. MAL213651471E3
Subtotal (1 pack of 5 units)
SGD19.62(exc. GST)
SGD3.924/unit
In Stock
TDK Openable, Diameter 13 mm Flat Cable Ferrite Core, Apertures: 1 30 mm 39 mm, For EMC Absorption
  • RS Stock No. 741-3068
  • Mfr. Part No. ZCAT3035-1330
Subtotal (1 unit)
SGD8.42(exc. GST)
SGD8.42/unit
In Stock
Arcol, 200 Ω 100 W Aluminium Chassis Mount Resistor ±1 %
  • RS Stock No. 162-3516
  • Mfr. Part No. HS100 200R F
Subtotal (1 unit)
SGD24.18(exc. GST)
SGD24.18/unit
Temporarily out of stock
Yageo RT 10 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.05 W - RT0603FRE0710KL
  • RS Stock No. 198-5467
  • Mfr. Part No. RT0603FRE0710KL
Subtotal (1 tape of 10 units)
SGD0.16(exc. GST)
SGD0.016/unit
1
46
8020
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

Be the first to know about our latest products and offers

Email address

The personal information you provide to us when signing up to this mailing list will be processed in line with the Privacy Policy