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

159381 Products showing for Passive Components

Sort By
7795 of 999+
Currently unavailable
TE Connectivity CPF 15.4 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B15K4E1
  • RS Stock No. 123-9122
  • Mfr. Part No. CPF0603B15K4E1
Subtotal (1 reel of 1000 units)
SGD214.00(exc. GST)
SGD0.214/unit
Temporarily out of stock
Panasonic ERJPC3 6810 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.2 W - ERJPC3D6811V
  • RS Stock No. 789-980
  • Mfr. Part No. ERJPC3D6811V
Subtotal (1 tape of 10 units)
SGD0.73(exc. GST)
SGD0.073/unit
Last RS stock
TE Connectivity 1 kΩ Ceramic Through Hole Fixed Resistor 2 W 10 %
  • RS Stock No. 240-5955
  • Mfr. Part No. HPCR0819AK1K0ST
Subtotal (1 reel of 250 units)
SGD1,154.25(exc. GST)
SGD4.617/unit
Last RS stock
TE Connectivity 4.7 kΩ Power Film Through Hole Fixed Resistor 35 W 1 %
  • RS Stock No. 195-5095P
  • Mfr. Part No. MPT35C4K7F
Subtotal 1 unit (supplied in a tube)
SGD15.43(exc. GST)
SGD15.43/unit
Currently unavailable
QANTEK 25 MHz Crystal ±10 ppm Surface Mount 4-Pin 1 mm 7 mm 5mm
  • RS Stock No. 173-5774
  • Mfr. Part No. QC7A25.0000F12B12R
Subtotal (1 reel of 1000 units)
SGD1,553.00(exc. GST)
SGD1.553/unit
Currently unavailable
Same Sky 88 dB Surface Buzzer Internal Magnetic Buzzer 7.1 mm 4 V dc Min 12.8 mm 7V dc Max
  • RS Stock No. 259-6318
  • Mfr. Part No. CT-1205CL-SMT-TR
Subtotal (1 reel of 450 units)
SGD1,144.80(exc. GST)
SGD2.544/unit
Temporarily out of stock
Murata 30 MHz Crystal Unit ±30 ppm SMT 4-Pin 0.65 mm 1.6 mm 2mm
  • RS Stock No. 250-7791
  • Mfr. Part No. XRCGE30M000F3A1AR0
Subtotal (1 reel of 3000 units)
SGD1,161.00(exc. GST)
SGD0.387/unit
In Stock
TDK B32923C Film Capacitor 470 nF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 172-5655
  • Mfr. Part No. B32923C3474K000
Subtotal (1 bag of 510 units)
SGD233.58(exc. GST)
SGD0.458/unit
In Stock
Abracon, ASPI-0628 Shielded Surface Mount Inductor with a Ferrite Core, 3.9 μH Ferrite Core ±20 % 2.7 A Idc
  • RS Stock No. 240-0908
  • Mfr. Part No. ASPI-0628-3R9M-T1
Subtotal (1 pack of 25 units)
SGD9.80(exc. GST)
SGD0.392/unit
In Stock
Vishay CRCW 33 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW060333K0FKEA
  • RS Stock No. 181-7766
  • Mfr. Part No. CRCW060333K0FKEA
Subtotal (1 reel of 1000 units)
SGD16.00(exc. GST)
SGD0.016/unit
Temporarily out of stock
Wurth Elektronik 3 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 23 A Idc, 3 mΩ Rdc 250V ac, WE-CMBNC
  • RS Stock No. 163-5556
  • Mfr. Part No. 7448052303
Subtotal (1 box of 24 units)
SGD645.312(exc. GST)
SGD26.888/unit
In Stock
Vishay MKP385E Polypropylene Capacitor, ±10 %, 470 nF 400 V dc 900V ac, Through Hole
  • RS Stock No. 204-8419P
  • Mfr. Part No. MKP385e44740JKI2B0
Subtotal 5 units (supplied in a bag)
SGD11.70(exc. GST)
SGD2.34/unit
Temporarily out of stock
Microchip 156.25 MHz MEMS Oscillator, 6-Pin VDFN 20 ppm DSA1222CL3-156M2500TVAO
  • RS Stock No. 724-716
  • Mfr. Part No. DSA1222CL3-156M2500TVAO
Subtotal (1 reel of 1000 units)
SGD4,084.00(exc. GST)
SGD4.084/unit
In Stock
KEMET PHE850 Film Capacitor Y2, ±20 %, 22 nF 1.25 kV dc 300V ac, Through Hole
  • RS Stock No. 616-7935P
  • Mfr. Part No. PHE850EB5220MB06R17
Subtotal 25 units (supplied in a box)
SGD18.225(exc. GST)
SGD0.729/unit
In Stock
Vishay 100 mΩ Thick Film Resistor 1 W 5 %
  • RS Stock No. 789-1131P
  • Mfr. Part No. HTS05231006JPB19
Subtotal 1 unit (supplied in a box)
SGD48.32(exc. GST)
SGD48.32/unit
In Stock
Wurth Elektronik 33 μF Through Hole Aluminium Polymer Capacitor, 50V dc
  • RS Stock No. 275-9354
  • Mfr. Part No. 870575774002
Subtotal (1 reel of 800 units)
SGD1,185.60(exc. GST)
SGD1.482/unit
In Stock
Vishay 10 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 272-7808P
  • Mfr. Part No. VJ0402Y103KXACW1BC
Subtotal 500 units (supplied on a reel)
SGD3.50(exc. GST)
SGD0.007/unit
In Stock
1 kΩ, Through Hole Trimmer Potentiometer, Pin 0.75 W Side Adjust Nidec Components, RJ-13
  • RS Stock No. 474-9131
  • Mfr. Part No. RJ-13S 1k Ohm (102)
Subtotal (1 unit)
SGD7.29(exc. GST)
SGD7.29/unit
Currently unavailable
TE Connectivity 365 Ω Metal Film Resistor 0.25 W 0.1 % YR1B365RCC
  • RS Stock No. 754-5620
  • Mfr. Part No. YR1B365RCC
Subtotal (1 pack of 5 units)
SGD7.08(exc. GST)
SGD1.416/unit
Last RS stock
NIC Components 100 μF Capacitor 63V dc, Radial, Through Hole PC Pin
  • RS Stock No. 737-3951P
  • Mfr. Part No. NRE-JL101M63V10X12.5F
Subtotal 10 units (supplied in a bag)
SGD5.24(exc. GST)
SGD0.524/unit
1
7795
7970
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