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

163920 Products showing for Passive Components

Sort By
In Stock
KEMET 4.7 μF MnO2 Tantalum Capacitor 20V dc, Surface, T491 Series
  • RS Stock No. 144-7512
  • Mfr. Part No. T491A475K020AT
Subtotal (1 pack of 25 units)
SGD10.75(exc. GST)
SGD0.43/unit
In Stock
Panasonic 680 μF Capacitor 50V dc, Radial, Through Hole - EEUFC1H681 Radial Lead
  • RS Stock No. 315-0899
  • Mfr. Part No. EEUFC1H681
Subtotal (1 pack of 5 units)
SGD11.15(exc. GST)
SGD2.23/unit
Currently unavailable
Panasonic ERJPC6 9760 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 → 0.5 % Surface 0.25 W -
  • RS Stock No. 784-918
  • Mfr. Part No. ERJPC6D9761V
Subtotal (1 tape of 10 units)
SGD0.94(exc. GST)
SGD0.094/unit
In Stock
TDK 4.7 μF Multilayer Ceramic Capacitor, 100V dc, ±20 %, Surface
  • RS Stock No. 111-0121
  • Mfr. Part No. CGA6M3X7S2A475M200AE
Subtotal (1 reel of 1000 units)
SGD1,167.00(exc. GST)
SGD1.167/unit
Temporarily out of stock
Panasonic ERJPC6 680000 Ω, 0805 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.25 W - ERJPC6B6803V
  • RS Stock No. 790-131
  • Mfr. Part No. ERJPC6B6803V
Subtotal (1 tape of 10 units)
SGD1.08(exc. GST)
SGD0.108/unit
In Stock
Abracon, 32.768kHz Crystal Oscillator Crystal Oscillator, -100 → 100 ppm CMOS, 4-Pin Surface Mount
  • RS Stock No. 240-3550
  • Mfr. Part No. ASDK2-32.768KHZ-LR-T3
Subtotal (1 reel of 3000 units)
SGD5,400.00(exc. GST)
SGD1.80/unit
In Stock
Yageo RT 22.1 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RT0402BRD0722K1L
  • RS Stock No. 199-1306
  • Mfr. Part No. RT0402BRD0722K1L
Subtotal (1 tape of 10 units)
SGD0.99(exc. GST)
SGD0.099/unit
Temporarily out of stock
Murata 1 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 144-8453
  • Mfr. Part No. GRM033R71E102KA01D
Subtotal (1 reel of 15000 units)
SGD45.00(exc. GST)
SGD0.003/unit
In Stock
TDK, CT/B Multilayer Varistor 1 A, Clamping 77 V
  • RS Stock No. 775-2773
  • Mfr. Part No. B72520E0300K062
Subtotal (1 pack of 100 units)
SGD50.50(exc. GST)
SGD0.505/unit
Temporarily out of stock
Vishay 4.7 μF Tantalum Tantalum Capacitor 16V dc, Surface, 595D Series
  • RS Stock No. 250-7762
  • Mfr. Part No. 595D475X9016A2T
Subtotal (1 tape of 10 units)
SGD22.00(exc. GST)
SGD2.20/unit
Temporarily out of stock
KYOCERA AVX 150 μF Electrolytic Tantalum Capacitor 10V dc, Surface, TPS Series
  • RS Stock No. 135-9906
  • Mfr. Part No. TPSD157K010R0100
Subtotal (1 bag of 5 units)
SGD8.05(exc. GST)
SGD1.61/unit
In Stock
KOA SG73P 1 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.33 W - SG73P1JTTD1R00F
  • RS Stock No. 225-1672
  • Mfr. Part No. SG73P1JTTD1R00F
Subtotal (1 tape of 100 units)
SGD4.00(exc. GST)
SGD0.04/unit
Temporarily out of stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 25V dc, ±5 %, Surface
  • RS Stock No. 185-3094
  • Mfr. Part No. GCG31CR71E475JA01L
Subtotal (1 reel of 2000 units)
SGD554.00(exc. GST)
SGD0.277/unit
In Stock
Abracon 8 MHz Crystal Unit ±20 ppm Surface Mount 4-Pin 1.2 mm 6 mm 3.5mm
  • RS Stock No. 171-2292
  • Mfr. Part No. ABMM2-8.000MHZ-E2-T
Subtotal (1 reel of 1000 units)
SGD1,040.00(exc. GST)
SGD1.04/unit
In Stock
Wurth Elektronik 68 μF Capacitor 35V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 839-6352
  • Mfr. Part No. 860240574005
Subtotal (1 bag of 10 units)
SGD4.48(exc. GST)
SGD0.448/unit
Temporarily out of stock
KYOCERA AVX, VC Varistor 1 A, Clamping 100 V
  • RS Stock No. 166-7877
  • Mfr. Part No. VC120648D101DP
Subtotal (1 reel of 1000 units)
SGD430.00(exc. GST)
SGD0.43/unit
Temporarily out of stock
Wurth Elektronik Ferrite Shielding Sheet 120 mm x 120mm x 100 μm
  • RS Stock No. 823-5346
  • Mfr. Part No. 354001
Subtotal (1 unit)
SGD37.37(exc. GST)
SGD37.37/unit
In Stock
MTC DHR6,4x3,2NI-N2,5V0-1000 Shielding Strip of Copper Nickel, Polyurethane With Tape 1 m x 6.4mm x 3.2 mm
  • RS Stock No. 783-8846
  • Mfr. Part No. DHR6,4x3,2NI-N2,5V0-1000
Subtotal (1 unit)
SGD14.96(exc. GST)
SGD14.96/unit
In Stock
Vishay 4.7 Ω Metal Film Resistor 3 W 5 % PR03000204708JAC00
  • RS Stock No. 441-2687
  • Mfr. Part No. PR03000204708JAC00
Subtotal (1 pack of 10 units)
SGD4.86(exc. GST)
SGD0.486/unit
In Stock
KEMET MMK Film Capacitor, ±10 %, 1 μF 63 V dc 40V ac, Through Hole
  • RS Stock No. 192-001
  • Mfr. Part No. MMK5105K63J04L4BULK
Subtotal (1 pack of 5 units)
SGD8.50(exc. GST)
SGD1.70/unit
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