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

158937 Products showing for Passive Components

57 of 999+
In Stock
20 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, 3314
  • RS Stock No. 691-7415P
  • Mfr. Part No. 3314J-1-203E
Subtotal 5 units (supplied on a continuous strip)
SGD10.85(exc. GST)
SGD2.17/unit
In Stock
Panasonic ERA 47 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.125 W - ERA6AEB473V
  • RS Stock No. 565-914
  • Mfr. Part No. ERA6AEB473V
Subtotal (1 pack of 5 units)
SGD0.71(exc. GST)
SGD0.142/unit
In Stock
Bourns CRS 1 mΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - CRS1206-FX-1004ELF
  • RS Stock No. 867-2971
  • Mfr. Part No. CRS1206-FX-1004ELF
Subtotal (1 bag of 25 units)
SGD2.875(exc. GST)
SGD0.115/unit
In Stock
Yageo 4.7 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 198-8014
  • Mfr. Part No. CC0805JKNPO9BN472
Subtotal (1 tape of 25 units)
SGD6.70(exc. GST)
SGD0.268/unit
Currently unavailable
CHEMI-CON 22 μF Capacitor 50V dc, Radial, Through Hole - EKY-500ELL220ME11D Radial Lead
  • RS Stock No. 812-2842
  • Mfr. Part No. EKY-500ELL220ME11D
Subtotal (1 pack of 50 units)
SGD12.70(exc. GST)
SGD0.254/unit
Temporarily out of stock
Murata, LQW, 03015 Surface Mount Inductor with a Ferrite Core, 23 nH 160 mA Idc Q:15
  • RS Stock No. 167-3945
  • Mfr. Part No. LQW04AN23NJ00D
Subtotal (1 reel of 10000 units)
SGD1,800.00(exc. GST)
SGD0.18/unit
In Stock
Vishay 100 μF MnO2 Tantalum Capacitor 35V dc, Surface, 597D Series
  • RS Stock No. 871-7327
  • Mfr. Part No. 597D107X0035F2T
Subtotal (1 unit)
SGD17.86(exc. GST)
SGD17.86/unit
Temporarily out of stock
Arcol Ohmite 400 Ω Wirewound Resistor 1 W 1 %
  • RS Stock No. 172-2222
  • Mfr. Part No. 41F400E
Subtotal (1 bag of 100 units)
SGD268.00(exc. GST)
SGD2.68/unit
In Stock
TDK B32022 Film Capacitor 10 nF 300V ac 300 V dc, Through Hole 2
  • RS Stock No. 466-514P
  • Mfr. Part No. B32022A3103M000
Subtotal 10 units (supplied in a bag)
SGD9.32(exc. GST)
SGD0.932/unit
Temporarily out of stock
Weidmüller 2788150000 Rod Multi-Band Antenna with Type N Female Connector, 700 MHz, 3.8 GHz, 5G
  • RS Stock No. 287-4813
  • Mfr. Part No. 2788150000
Subtotal (1 unit)
SGD245.52(exc. GST)
SGD245.52/unit
Stocked by manufacturer
Hengstler 30V dc, 7 V dc 2048 ppr Pulse Absolute Encoder with a 6 mm Solid Shaft Shaft, Flange
  • RS Stock No. 666-6867
  • Mfr. Part No. 0541115
Subtotal (1 unit)
SGD1,017.20(exc. GST)
SGD1,017.20/unit
In Stock
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3362
  • RS Stock No. 522-0899
  • Mfr. Part No. 3362P-1-103LF
Subtotal (1 unit)
SGD1.30(exc. GST)
SGD1.30/unit
In Stock
Vishay 22 μF Capacitor 450V dc, Axial, Through Hole - MAL204217229E3 Solder
  • RS Stock No. 324-5414
  • Mfr. Part No. MAL204217229E3
Subtotal (1 pack of 5 units)
SGD49.45(exc. GST)
SGD9.89/unit
In Stock
Arcol, 360 Ω 50 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 615-0511
  • Mfr. Part No. HS50 360R J
Subtotal (1 unit)
SGD8.39(exc. GST)
SGD8.39/unit
Temporarily out of stock
Vishay 6.8 μF MnO2 Tantalum Capacitor 40V dc, Through Hole, 790D Series
  • RS Stock No. 170-8603
  • Mfr. Part No. 790D685X9040B2BE3
Subtotal (1 bag of 250 units)
SGD1,092.25(exc. GST)
SGD4.369/unit
In Stock
Wurth Elektronik 10 μF Capacitor 16V dc, Surface Solder
  • RS Stock No. 185-5694
  • Mfr. Part No. 865090368008
Subtotal (1 pack of 25 units)
SGD9.975(exc. GST)
SGD0.399/unit
In Stock
Hammond 10 mH Power Line Choke, 5 A Idc, 0.16 Ω Rdc 500V, 159
  • RS Stock No. 279-0330
  • Mfr. Part No. 159ZJ
Subtotal (1 unit)
SGD58.11(exc. GST)
SGD58.11/unit
Temporarily out of stock
Vishay P16 100 Ω Rotary Potentiometer 1-Turns 1-Gang Panel Mount, P16NP101MAB15
  • RS Stock No. 790-4407
  • Mfr. Part No. P16NP101MAB15
Subtotal (1 unit)
SGD27.61(exc. GST)
SGD27.61/unit
In Stock
TE Connectivity 3.3 kΩ Wirewound Resistor 4 W 5 %
  • RS Stock No. 206-0587
  • Mfr. Part No. SBCHE43K3J
Subtotal (1 pack of 5 units)
SGD8.99(exc. GST)
SGD1.798/unit
In Stock
RS PRO 16 A 520V ac 50Hz, 60 Hz, Chassis Mount Power Line Filter, Terminal Block 3 Phase
  • RS Stock No. 278-5158
Subtotal (1 unit)
SGD224.88(exc. GST)
SGD224.88/unit
1
57
7947
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