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

160473 Products showing for Passive Components

Sort By
1695 of 999+
In Stock
TDK B32922C Film Capacitor 150 nF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 334-855
  • Mfr. Part No. B32922C3154K000
Subtotal (1 pack of 10 units)
SGD5.07(exc. GST)
SGD0.507/unit
In Stock
TE Connectivity RLC73 0.1 Ω, 2512 Thick Film Surface Mount Resistor 1 % Surface 2 W - RLC73PW3AR10FTDF
  • RS Stock No. 286-8929
  • Mfr. Part No. RLC73PW3AR10FTDF
Subtotal (1 pack of 5 units)
SGD3.98(exc. GST)
SGD0.796/unit
In Stock
Panasonic ERJ 10 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±5 % Surface 0.1 W - ERJ3GEYJ100V
  • RS Stock No. 277-927
  • Mfr. Part No. ERJ3GEYJ100V
Subtotal (1 bag of 10 units)
SGD0.14(exc. GST)
SGD0.014/unit
In Stock
RF Solutions ANT-4WHIP3H-SMA Whip Omni-Directional Antenna with SMA Connector, ISM Band
  • RS Stock No. 793-4341
  • Mfr. Part No. ANT-4WHIP3H-SMA
Subtotal (1 unit)
SGD8.24(exc. GST)
SGD8.24/unit
Currently unavailable
Vishay CRCW 48.7 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW080548K7FKEA
  • RS Stock No. 169-4701
  • Mfr. Part No. CRCW080548K7FKEA
Subtotal (1 reel of 5000 units)
SGD85.00(exc. GST)
SGD0.017/unit
Limited stock
Bourns 24 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole
  • RS Stock No. 167-4648
  • Mfr. Part No. PEC11R-4020F-S0024
Subtotal (1 bag of 75 units)
SGD154.50(exc. GST)
SGD2.06/unit
Currently unavailable
TE Connectivity Fluorosilicone Shielding Sheet 300 mm x 300mm x 1.6 mm
  • RS Stock No. 255-7201
  • Mfr. Part No. 1212-FSA-0016
Subtotal (1 bag of 10 units)
SGD7,945.33(exc. GST)
SGD794.533/unit
Currently unavailable
Yageo RT 2.2 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD072K2L
  • RS Stock No. 199-1488
  • Mfr. Part No. RT0603BRD072K2L
Subtotal (1 tape of 10 units)
SGD0.93(exc. GST)
SGD0.093/unit
Currently unavailable
Murata, LQM, 1206 Shielded Multilayer Surface Mount Inductor with a Ferrite Core, 4.7 μH Multilayer ±20 % 700 mA Idc
  • RS Stock No. 786-7188
  • Mfr. Part No. LQM31PN4R7M00L
Subtotal (1 bag of 10 units)
SGD2.40(exc. GST)
SGD0.24/unit
Currently unavailable
Panasonic ERJPC6 2700 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6B2701V
  • RS Stock No. 784-975
  • Mfr. Part No. ERJPC6B2701V
Subtotal (1 tape of 10 units)
SGD1.08(exc. GST)
SGD0.108/unit
In Stock
ECS Inc International 25 MHz Crystal Oscillator ±30 ppm Surface Mount 2-Pin 4.30 mm 11.40 mm 4.8mm
  • RS Stock No. 301-326P
  • Mfr. Part No. ECS-250-18-5PX-F-TR
Subtotal 1 unit (supplied on a continuous strip)
SGD0.41(exc. GST)
SGD0.41/unit
Temporarily out of stock
TDK 22 nF Multilayer Ceramic Capacitor, 630V dc, ±10 %, Surface
  • RS Stock No. 179-4990
  • Mfr. Part No. CGA5K4X7R2J223K130AA
Subtotal (1 reel of 2000 units)
SGD238.00(exc. GST)
SGD0.119/unit
Temporarily out of stock
Yageo 1.5 nF Multilayer Ceramic Capacitor, 250V dc, ±10 %, Surface
  • RS Stock No. 198-8277
  • Mfr. Part No. CS0805KRX7RYBB152
Subtotal (1 reel of 4000 units)
SGD552.00(exc. GST)
SGD0.138/unit
In Stock
Bourns, SRR3818A, 3818 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH 20 % 1.3 A Idc Q:20
  • RS Stock No. 223-1862P
  • Mfr. Part No. SRR3818A-100M
Subtotal 5 units (supplied on a continuous strip)
SGD5.77(exc. GST)
SGD1.154/unit
In Stock
RS PRO 100 μF Capacitor 35V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 170-1214
Subtotal (1 bag of 1000 units)
SGD125.00(exc. GST)
SGD0.125/unit
Temporarily out of stock
Welwyn WCR Series 18 Ω, 1206 Thick Film Resistor 0.01 Surface 0.25 W - WCR1206 18RF
  • RS Stock No. 814-276
  • Mfr. Part No. WCR1206 18RF
Subtotal (1 reel of 5000 units)
SGD110.00(exc. GST)
SGD0.022/unit
Temporarily out of stock
Yageo RC_L 40.2 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W - RC0603FR-0740K2L
  • RS Stock No. 199-5569
  • Mfr. Part No. RC0603FR-0740K2L
Subtotal (1 reel of 5000 units)
SGD30.00(exc. GST)
SGD0.006/unit
In Stock
TDK YFF-P, Feedthrough Capacitor 6.3V dc, 1608 4.7 μF, Surface
  • RS Stock No. 144-7418
  • Mfr. Part No. YFF18PC0J475MT0H0N
Subtotal (1 pack of 10 units)
SGD2.72(exc. GST)
SGD0.272/unit
Temporarily out of stock
Panasonic ERJP06 6.8 Ω, 0805 Thick Film Surface Mount Resistor ±5 % 0.5 W - ERJP06J6R8V
  • RS Stock No. 172-4235
  • Mfr. Part No. ERJP06J6R8V
Subtotal (1 reel of 5000 units)
SGD145.00(exc. GST)
SGD0.029/unit
Temporarily out of stock
Wurth Elektronik 100 μF Capacitor 450V dc, Snap-in - 861111485023
  • RS Stock No. 125-0110
  • Mfr. Part No. 861111485023
Subtotal (1 tray of 50 units)
SGD291.20(exc. GST)
SGD5.824/unit
1
1695
8024
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