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

148024 Products showing for Passive Components

1 of 999+
Ohmite 250Ω ±10% 100W Adjustable Wire Wound Resistor ±260ppm/°C 165.1mm
  • RS Stock No. 892-4730
  • Mfr. Part No. D100K250E
Each
HK$250.10(exc. GST)
RS PRO 1kΩ 5% 180W High Power Wirewound Adjustable Resistor 50ppm/°C 21.6mm
  • RS Stock No. 238-3222
Each
HK$523.10(exc. GST)
Bourns 3680 5kΩ Digital Display Precision Potentiometer 10-Turns 2-Gang Panel Mount, 3683S-1-502L
  • RS Stock No. 165-5982
  • Mfr. Part No. 3683S-1-502L
Each
HK$438.10(exc. GST)
Murata 10μF Multilayer Ceramic Capacitor MLCC, 25V dc V, ±10% , SMD
  • RS Stock No. 276-3767
  • Mfr. Part No. GRM21BZ71E106KE15L
Each (On a Tape of 10)
HK$1.32(exc. GST)
KEMET 1 mH 10% Coil Inductor, 760mA Idc
  • RS Stock No. 265-2556
  • Mfr. Part No. SBC8-102-761
Each
HK$17.70(exc. GST)
Nichicon 470μF Aluminium Electrolytic Capacitor 100V dc, Radial, Through Hole - UVZ2A471MHD
  • RS Stock No. 845-4903
  • Mfr. Part No. UVZ2A471MHD
Each (In a Pack of 5)
HK$13.36(exc. GST)
Welwyn 390Ω Wire Wound Resistor 7W ±5% W22-390RJI
  • RS Stock No. 144-3045
  • Mfr. Part No. W22-390RJI
Each (In a Bag of 5)
HK$16.10(exc. GST)
Panasonic ERJ1T 270mΩ, 2512 (6432M) Thick Film SMD Resistor ±1% 1W
  • RS Stock No. 721-6227
  • Mfr. Part No. ERJ1TRQFR27U
Each (In a Pack of 5)
HK$4.48(exc. GST)
KEMET 47nF Multilayer Ceramic Capacitor MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 147-998
  • Mfr. Part No. C0805C473K1RACTU
Each (In a Pack of 25)
HK$0.408(exc. GST)
Vishay MMA0204 2kΩ, Melf 0204 Thin Film SMD Resistor ±1% 0.25W
  • RS Stock No. 678-7267P
  • Mfr. Part No. MMA02040C2001FB300
Each (Supplied on a Reel)
HK$0.352(exc. GST)
Wurth 43 μH ±20% Composite Iron Powder Toroidal Inductor, 2.6A Idc, 60mΩ Rdc, WE-FI
  • RS Stock No. 308-9551
  • Mfr. Part No. 7447034
Each
HK$16.90(exc. GST)
Murata 4.7μF Multilayer Ceramic Capacitor MLCC, 50V dc V, SMD
  • RS Stock No. 260-8825
  • Mfr. Part No. GRM21BZ71H475KE15K
Each (On a Tape of 10)
HK$2.35(exc. GST)
Arcol, 10kΩ 100W Wire Wound Chassis Mount Resistor HS100E6 10K F M193 ±1%
  • RS Stock No. 195-4164
  • Mfr. Part No. HS100E6 10K F M193
Each
HK$135.30(exc. GST)
Welwyn 1.5kΩ Wire Wound Resistor 7W ±5% W22-1K5JI
  • RS Stock No. 139-3450
  • Mfr. Part No. W22-1K5JI
Each (In a Bag of 5)
HK$14.34(exc. GST)
Vishay 22μF Tantalum Capacitor 35V dc
  • RS Stock No. 250-9030
  • Mfr. Part No. 150D226X9035R2BE3
Each
HK$76.00(exc. GST)
Bourns 3680 1kΩ Digital Display Precision Potentiometer 10-Turns 2-Gang Panel Mount, 3683S-1-102L
  • RS Stock No. 165-5976
  • Mfr. Part No. 3683S-1-102L
Each
HK$509.00(exc. GST)
Panasonic 1500μF Aluminium Electrolytic Capacitor 6.3V dc, Radial, Through Hole - EEUFK0J152L
  • RS Stock No. 571-098
  • Mfr. Part No. EEUFK0J152L
Each (In a Pack of 5)
HK$5.72(exc. GST)
EPCOS 10000μF Aluminium Electrolytic Capacitor 63V dc, Snap-In - B41231A8109M060
  • RS Stock No. 171-3190
  • Mfr. Part No. B41231A8109M060
Each (In a Box of 80)
HK$36.991(exc. GST)
Radiohm POTM 47kΩ Rotary Potentiometer 1-Gang Panel Mount, 05.061.5470
  • RS Stock No. 468-8733
  • Mfr. Part No. 05.061.5470
Each
HK$24.60(exc. GST)
Vishay 0Ω, 0402 (1005M) Thick Film SMD Resistor ±0% 0.063W
  • RS Stock No. 393-2326
  • Mfr. Part No. CRCW04020000Z0ED
Each (In a Pack of 50)
HK$0.094(exc. GST)
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