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

163609 Products showing for Passive Components

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RS PRO 220 Ω, 1206 Thin Film Resistor 0.1 % 2 W
  • RS Stock No. 243-0525P
Subtotal (5 units, supplied on a continuous strip)
MYR35.59
MYR7.118/unit
In Stock
Alps Alpine 12 ppr Pulse Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole
  • RS Stock No. 172-6303
  • Mfr. Part No. EC12E1220401
Subtotal (120 units, in trays of 120)
MYR767.28
MYR6.394/unit
In Stock
Nidec Components MC 10 kΩ Rotary Potentiometer 3-Turns 1-Gang Panel, MC1003-000-103
  • RS Stock No. 202-4423
  • Mfr. Part No. MC1003-000-103
Subtotal (1 unit)
MYR139.93
MYR139.93/unit
Temporarily out of stock
Elma 16 ppr Pulse 2 Bit Quadrature Mechanical Rotary Encoder with a 6 mm Slotted Shaft
  • RS Stock No. 241-2350
  • Mfr. Part No. E33-VT652-M01T
Subtotal (10 units, in boxes of 10)
MYR1,501.68
MYR150.168/unit
In Stock
Abracon 48 MHz Crystal Unit ±50 ppm Surface Mount 4-Pin 1.1 mm 5 mm 3.2mm
  • RS Stock No. 241-3006
  • Mfr. Part No. ABM3B-48.000MHZ-B2-T
Subtotal (1000 units, on reels of 1000)
MYR2,887.00
MYR2.887/unit
Temporarily out of stock
Abracon 25 MHz Crystal ± 30 ppm SMD 2-Pin 4.2 mm 11.4 mm 4.7mm
  • RS Stock No. 898-741
  • Mfr. Part No. ABLS-25.000MHZ-K4F-T
Subtotal (10 units, on tapes of 10)
MYR25.61
MYR2.561/unit
In Stock
Vishay PE30 470 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, PE30L0FL474KAB
  • RS Stock No. 790-4489
  • Mfr. Part No. PE30L0FL474KAB
Subtotal (1 unit)
MYR120.21
MYR120.21/unit
In Stock
Wurth Elektronik, WE-MCI, 0603 Shielded Surface Mount Inductor with a Ceramic Core, 27 nH Multilayer ±5 % 300 mA Idc
  • RS Stock No. 245-8771P
  • Mfr. Part No. 7847806270
Subtotal (10 units, supplied on a continuous strip)
MYR2.15
MYR0.215/unit
Temporarily out of stock
Bourns PTV09 100 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, PTV09A-4225F-B104
  • RS Stock No. 167-0081
  • Mfr. Part No. PTV09A-4225F-B104
Subtotal (100 units, in trays of 100)
MYR309.00
MYR3.09/unit
In Stock
Yageo RT 10.2 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD0710K2L
  • RS Stock No. 199-1389
  • Mfr. Part No. RT0603BRD0710K2L
Subtotal (10 units, on tapes of 10)
MYR4.73
MYR0.473/unit
In Stock
TDK 5 μH 1200 A Common Mode Choke 60 mΩ 42V
  • RS Stock No. 246-9886
  • Mfr. Part No. B82793C0502N201
Subtotal (1 unit)
MYR7.91
MYR7.91/unit
In Stock
Murata 4.3 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface
  • RS Stock No. 815-1610P
  • Mfr. Part No. GJM1555C1H4R3CB01D
Subtotal (250 units, supplied on a reel)
MYR18.50
MYR0.074/unit
In Stock
TDK 1 μF Multilayer Ceramic Capacitor, 25V dc, ±20 %, Surface
  • RS Stock No. 915-5667
  • Mfr. Part No. CGA3E1X7R1E105M080AC
Subtotal (100 units, in packs of 100)
MYR24.40
MYR0.244/unit
In Stock
Abracon, ASPI-1040HI Shielded Surface Mount Inductor with a Iron Core, 10 μH Flat Wire Winding ±20 % 7.8 A Idc
  • RS Stock No. 240-0930
  • Mfr. Part No. ASPI-1040HI-100M-T05
Subtotal (5 units, in packs of 5)
MYR19.76
MYR3.952/unit
In Stock
Wurth Elektronik 20 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft, Through Hole
  • RS Stock No. 185-4446
  • Mfr. Part No. 482020514001
Subtotal (2 units, in packs of 2)
MYR34.74
MYR17.37/unit
Stocked by manufacturer
Sato Parts Potentiometer Knob 18 mm, K-37-S 6 mm, Black, Silver
  • RS Stock No. 792-566
  • Mfr. Part No. K-37-S
Subtotal (1 unit)
MYR83.04
MYR83.04/unit
Currently unavailable
Bourns, SRU1028, 1028 Surface Mount Inductor with a Ferrite DR & RI Core, 47 μH 1.3 A Idc Q:20
  • RS Stock No. 172-7164
  • Mfr. Part No. SRU1028-470Y
Subtotal (1000 units, on reels of 1000)
MYR2,120.00
MYR2.12/unit
In Stock
Wurth Elektronik Openable, Diameter 21 mm Ferrite Sleeve, Apertures: 1 Key 56 mm 47 mm 43 mm, For EMI Suppression
  • RS Stock No. 163-8201
  • Mfr. Part No. 74271211S
Subtotal (20 units, in boxes of 20)
MYR1,225.94
MYR61.297/unit
Temporarily out of stock
AKER, 50MHz Clock Oscillator, ±50 ppm HCMOS, 4-Pin Surface Mount S73305-50.000-X-15
  • RS Stock No. 173-5844
  • Mfr. Part No. S73305-50.000-X-15
Subtotal (250 units, on reels of 250)
MYR1,709.50
MYR6.838/unit
In Stock
KEMET RC Capacitor 47 nF 47 Ω ±30 % 1 630 V dc, Through Hole, PMR209
  • RS Stock No. 209-213
  • Mfr. Part No. PMR209MB5470M047R30
Subtotal (5 units, in packs of 5)
MYR48.15
MYR9.63/unit
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