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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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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161104 Products showing for Passive Components

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1639 of 999+
Temporarily out of stock
Wurth Elektronik, WE-MAPI SMT, 4030 Shielded Power Inductor with a Manganese Zinc Core, 8.2 μH ±20 % 5.2 A Idc
  • RS Stock No. 258-5709
  • Mfr. Part No. 74438357082
Subtotal (1 unit)
SGD2.30(exc. GST)
SGD2.30/unit
Currently unavailable
Yageo PA1206_L 3 mΩ, 1206 Current Sensing Surface Mount Resistor ±1 % 1 W
  • RS Stock No. 199-5853P
  • Mfr. Part No. PA1206FRF070R003L
Subtotal (10 units, supplied on a continuous strip)
SGD3.18(exc. GST)
SGD0.318/unit
In Stock
TE Connectivity 47 Ω Wirewound Resistor 11 W 5 %
  • RS Stock No. 206-1372P
  • Mfr. Part No. SBCHE1147RJ
Subtotal (5 units, supplied in a box)
SGD18.65(exc. GST)
SGD3.73/unit
Temporarily out of stock
Yageo RT 1 kΩ, 0805 Thin Film Surface Mount Resistor ±1 % 0.13 W - RT0805FRE071KL
  • RS Stock No. 198-5690
  • Mfr. Part No. RT0805FRE071KL
Subtotal (5000 units, on reels of 5000)
SGD80.00(exc. GST)
SGD0.016/unit
Currently unavailable
Vishay 390 kΩ Thin Film Resistor 0.6 W 1 % MBB02070C3903FCT00
  • RS Stock No. 506-5608
  • Mfr. Part No. MBB02070C3903FCT00
Subtotal (50 units, in packs of 50)
SGD6.55(exc. GST)
SGD0.131/unit
Temporarily out of stock
KEMET 4.7 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Through Hole Radial
  • RS Stock No. 146-6303
  • Mfr. Part No. C315C472K1R5TA
Subtotal (500 units, on reels of 500)
SGD58.50(exc. GST)
SGD0.117/unit
Last RS stock
TE Connectivity, 56 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 254-3864
  • Mfr. Part No. HCL165J56RCX
Subtotal (1 unit)
SGD69.50(exc. GST)
SGD69.50/unit
Currently unavailable
Bourns, ZV Varistor 6.5 nF 10 A, Clamping 54 V, Varistor 33 V, 2220
  • RS Stock No. 211-1129
  • Mfr. Part No. ZV20K2220122NIR1
Subtotal (1000 units, on reels of 1000)
SGD925.00(exc. GST)
SGD0.925/unit
Currently unavailable
Panasonic ERJ HP6 5.6 Ω, 0805 Thick Film Surface Mount Resistor ±1 % Surface 0.5 W - ERJHP6F5R60V
  • RS Stock No. 228-5075
  • Mfr. Part No. ERJHP6F5R60V
Subtotal (5000 units, on reels of 5000)
SGD365.00(exc. GST)
SGD0.073/unit
In Stock
TE Connectivity 330 Ω Wirewound Resistor 11 W 5 %
  • RS Stock No. 206-1439P
  • Mfr. Part No. SBCHE11330RJ
Subtotal (5 units, supplied in a box)
SGD20.19(exc. GST)
SGD4.038/unit
Last RS stock
Vishay MKP 338 Film Capacitor X1, ±20 %, 3.3 nF 1000 V dc 440V ac, Through Hole
  • RS Stock No. 684-2181P
  • Mfr. Part No. BFC233860332
Subtotal (5 units, supplied in a box)
SGD13.13(exc. GST)
SGD2.626/unit
In Stock
Panasonic ERJ H2R 5.6 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2RF5601X
  • RS Stock No. 228-4659
  • Mfr. Part No. ERJH2RF5601X
Subtotal (100 units, on tapes of 100)
SGD9.20(exc. GST)
SGD0.092/unit
Temporarily out of stock
Wurth Elektronik, WE-HCF, 2920 Wirewound Surface Mount Inductor with a Polyethylene Terephthalate Core, 150 μH ±20 % 7.8
  • RS Stock No. 258-5655
  • Mfr. Part No. 74437429203151
Subtotal (20 units, in trays of 20)
SGD248.20(exc. GST)
SGD12.41/unit
In Stock
Vishay 2.2 μF MnO2 Tantalum Capacitor 50V dc, Surface, 293D Series
  • RS Stock No. 684-4014
  • Mfr. Part No. 293D225X9050D2TE3
Subtotal (5 units, in packs of 5)
SGD9.05(exc. GST)
SGD1.81/unit
In Stock
Yageo RT 30 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.13 W
  • RS Stock No. 198-5636P
  • Mfr. Part No. RT0805BRD0730KL
Subtotal (10 units, supplied on a continuous strip)
SGD0.99(exc. GST)
SGD0.099/unit
Temporarily out of stock
Yageo AC 100 Ω, 0805 Thick Film Resistor ±1 % 0.13 W - AC0805FR-07100RL
  • RS Stock No. 197-8154
  • Mfr. Part No. AC0805FR-07100RL
Subtotal (5000 units, on reels of 5000)
SGD45.00(exc. GST)
SGD0.009/unit
Temporarily out of stock
Yageo 330 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 669-8953
  • Mfr. Part No. 223886115331
Subtotal (4000 units, on reels of 4000)
SGD112.00(exc. GST)
SGD0.028/unit
In Stock
Panasonic ERJ H2R 560 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W
  • RS Stock No. 228-4657P
  • Mfr. Part No. ERJH2RF5600X
Subtotal (100 units, supplied on a continuous strip)
SGD11.50(exc. GST)
SGD0.115/unit
In Stock
Epson 25 MHz Crystal Unit ±10 ppm TSX-3225 4-Pin 0.6 mm 3.2 mm 2.5mm
  • RS Stock No. 904-7531P
  • Mfr. Part No. X1E000021013112
Subtotal (5 units, supplied on a continuous strip)
SGD12.95(exc. GST)
SGD2.59/unit
Currently unavailable
KEMET R41-T Polypropylene Capacitor Y2, 10 %, 470 nF 300 V dc 300V ac, Through Hole
  • RS Stock No. 207-1929
  • Mfr. Part No. R413R347050T0K
Subtotal (128 units, in bags of 128)
SGD384.256(exc. GST)
SGD3.002/unit
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