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.

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Antennas
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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Rotary Encoders
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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163786 Products showing for Passive Components

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Murata 51 μH 230 mA Common Mode Choke 1 Ω 50V
  • RS Stock No. 871-2054
  • Mfr. Part No. DLW43SH510XK2L
Subtotal (5 units, in bags of 5)
SGD5.80(exc. GST)
SGD1.16/unit
In Stock
Nova, CCR Metal Oxide, Through Hole 48 Resistor Kit 1110, 10Ω → 1MΩ
  • RS Stock No. 358-989
  • Mfr. Part No. CCR-36
Subtotal (1 unit)
SGD141.52(exc. GST)
SGD141.52/unit
In Stock
Murata, LQH, 1812 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 1 mH ±5 % 50 mA Idc Q:40
  • RS Stock No. 725-5229
  • Mfr. Part No. LQH43MN102J03L
Subtotal (10 units, in packs of 10)
SGD4.95(exc. GST)
SGD0.495/unit
In Stock
Bourns 5V dc 128 ppr Pulse Optical Encoder with a 6.35 mm Round Shaft, Bracket Mount
  • RS Stock No. 263-2889P
  • Mfr. Part No. ENA1J-B28-L00128L
Subtotal (1 unit, supplied in a bag)
SGD70.46(exc. GST)
SGD70.46/unit
In Stock
Alps Alpine RK163 100 kΩ Rotary Carbon Film Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole
  • RS Stock No. 249-9222
  • Mfr. Part No. RK1631110TV7
Subtotal (1 unit)
SGD8.58(exc. GST)
SGD8.58/unit
In Stock
Abracon, ASPI-4030S Shielded Surface Mount Inductor with a Ferrite Core, 4.7 μH Flat Wire Winding ±20 % 2.9 A Idc
  • RS Stock No. 240-0944
  • Mfr. Part No. ASPI-4030S-4R7M-T
Subtotal (25 units, in packs of 25)
SGD7.60(exc. GST)
SGD0.304/unit
In Stock
Yageo 220 kΩ Metal Film Metal Film Fixed Resistor 0.6 W 1 % MF0207FTE52-220K
  • RS Stock No. 199-7564
  • Mfr. Part No. MF0207FTE52-220K
Subtotal (100 units, on tapes of 100)
SGD4.80(exc. GST)
SGD0.048/unit
Temporarily out of stock
Bourns, SRP1038AA, 1038 Shielded Power Inductor with a Metal Alloy Powder Core, 47 μH ±20 % 3.5 A Idc Q:20
  • RS Stock No. 247-6001
  • Mfr. Part No. SRP1038AA-470M
Subtotal (1 unit)
SGD1.67(exc. GST)
SGD1.67/unit
Last RS stock
Vishay, IHLP, 6767 Shielded Surface Mount Inductor with a Metal Composite Core, 4.7 μH ±20 % 30 A Idc
  • RS Stock No. 223-7301
  • Mfr. Part No. IHLP6767GZER4R7M11
Subtotal (1 unit)
SGD5.77(exc. GST)
SGD5.77/unit
In Stock
Panasonic 220 μF Aluminium Electrolytic Capacitor 50V dc, Radial, Through Hole - ECA1HHG221 Radial Lead
  • RS Stock No. 365-4290
  • Mfr. Part No. ECA1HHG221
Subtotal (5 units, in packs of 5)
SGD4.91(exc. GST)
SGD0.982/unit
In Stock
Sifam 15.5 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Circular, SP151 250 BLACK
  • RS Stock No. 407-2453
  • Mfr. Part No. SP151 250 BLACK
Subtotal (10 units, in packs of 10)
SGD84.16(exc. GST)
SGD8.416/unit
In Stock
KEMET C4AQ Polypropylene Capacitor, 5 %, 1 μF 1.3 kV dc, PCB
  • RS Stock No. 207-9001
  • Mfr. Part No. C4AQULU4100A11J
Subtotal (2 units, in packs of 2)
SGD6.40(exc. GST)
SGD3.20/unit
In Stock
RS PRO 100 kΩ Carbon Film Resistor 0.5 W 5 %
  • RS Stock No. 707-8388
Subtotal (10 units, in packs of 10)
SGD1.22(exc. GST)
SGD0.122/unit
In Stock
KEMET 100 nF Multilayer Ceramic Capacitor, 50V dc, ±20 %, Surface
  • RS Stock No. 264-4422
  • Mfr. Part No. C0805C104M5UACTU
Subtotal (25 units, in packs of 25)
SGD3.00(exc. GST)
SGD0.12/unit
In Stock
50 Ω, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3362
  • RS Stock No. 787-0581
  • Mfr. Part No. 3362P-1-500LF
Subtotal (1 unit)
SGD1.63(exc. GST)
SGD1.63/unit
In Stock
Bourns CRL 220 mΩ, 1206 Thick Film Surface Mount Resistor ±5 % 0.25 W - CRL1206-JW-R220ELF
  • RS Stock No. 794-4247
  • Mfr. Part No. CRL1206-JW-R220ELF
Subtotal (10 units, in packs of 10)
SGD1.94(exc. GST)
SGD0.194/unit
In Stock
TE Connectivity 15 kΩ Metal Oxide Resistor 5 W 5 % SQMR515KJ
  • RS Stock No. 199-7911
  • Mfr. Part No. SQMR515KJ
Subtotal (5 units, in packs of 5)
SGD6.36(exc. GST)
SGD1.272/unit
In Stock
Panasonic 1000 μF Capacitor 63V dc, Radial - ECA1JHG102 Radial Lead
  • RS Stock No. 365-4408
  • Mfr. Part No. ECA1JHG102
Subtotal (5 units, in packs of 5)
SGD15.00(exc. GST)
SGD3.00/unit
In Stock
Vishay CRCW 3.6 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW06033K60FKEA
  • RS Stock No. 181-7833
  • Mfr. Part No. CRCW06033K60FKEA
Subtotal (1000 units, on reels of 1000)
SGD18.00(exc. GST)
SGD0.018/unit
In Stock
RS PRO 1 μF Capacitor 50V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 711-1407
Subtotal (100 units, in packs of 100)
SGD9.20(exc. GST)
SGD0.092/unit
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