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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163640 Products showing for Passive Components

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2195 of 999+
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TE Connectivity 47 Ω Wirewound Resistor 4 W 5 % SBCHE447RJ
  • RS Stock No. 206-0464
  • Mfr. Part No. SBCHE447RJ
Subtotal (1 pack of 5 units)
SGD13.88(exc. GST)
SGD2.776/unit
Temporarily out of stock
TDK Thermistor, NTC Type 4.7 kΩ 2 mm 3 mm 5 mm
  • RS Stock No. 167-8521
  • Mfr. Part No. B57164K0472J000
Subtotal (1 box of 2000 units)
SGD1,188.00(exc. GST)
SGD0.594/unit
Currently unavailable
Panasonic ERJ D2 18 mΩ, 0612 Thick Film Surface Mount Resistor ±1 % 1 W - ERJD2DFR018V
  • RS Stock No. 217-2715
  • Mfr. Part No. ERJD2DFR018V
Subtotal (1 tape of 5 units)
SGD2.57(exc. GST)
SGD0.514/unit
In Stock
TDK, AdvancedD Metal Oxide Varistor 220 pF 25 A, Clamping 710 V, Varistor 430 V
  • RS Stock No. 241-6752
  • Mfr. Part No. B72210S2271K101
Subtotal (1 pack of 5 units)
SGD2.85(exc. GST)
SGD0.57/unit
In Stock
Vishay MMA 15 kΩ, 0204 Thick Film Thick Film Resistor ±0.1 % Surface Mount 0.25 W - MMA02040E1502BB300
  • RS Stock No. 782-959
  • Mfr. Part No. MMA02040E1502BB300
Subtotal (1 tape of 10 units)
SGD8.49(exc. GST)
SGD0.849/unit
Last RS stock
Abracon, AFS869S3, Signal Filter, 10V dc 869MHz, Surface 1.5 mm 3.8 mm, 4 mm
  • RS Stock No. 250-5212
  • Mfr. Part No. AFS869S3-T
Subtotal (1 reel of 1000 units)
SGD2,728.00(exc. GST)
SGD2.728/unit
In Stock
500 Ω, Through Hole Trimmer Potentiometer, Solder Pin 0.25 W Top Adjust Bourns, PV37
  • RS Stock No. 769-2249
  • Mfr. Part No. PV37W501C01B00
Subtotal (1 unit)
SGD3.17(exc. GST)
SGD3.17/unit
Currently unavailable
Wurth Elektronik 100 nF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 260-2292
  • Mfr. Part No. 885012104001
Subtotal (1 tape of 200 units)
SGD6.80(exc. GST)
SGD0.034/unit
In Stock
KEMET C4AF Film Capacitor, 10 %, 3.3 μF 310 V dc 310V ac, Through Hole
  • RS Stock No. 258-4236
  • Mfr. Part No. C4AF9BU4330F11K
Subtotal (1 box of 72 units)
SGD233.928(exc. GST)
SGD3.249/unit
In Stock
Wurth Elektronik 100 μF Capacitor 50V dc, Surface Solder
  • RS Stock No. 839-1900
  • Mfr. Part No. 865080653016
Subtotal (1 pack of 10 units)
SGD8.43(exc. GST)
SGD0.843/unit
In Stock
Wurth Elektronik 12 pF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 260-2272
  • Mfr. Part No. 885012004005
Subtotal (1 tape of 200 units)
SGD6.80(exc. GST)
SGD0.034/unit
Currently unavailable
Wurth Elektronik, WE-GFH, 3225 Unshielded Surface Mount Inductor with a Powdered Iron Core, 68 μH Moulded ±10 % 225 mA
  • RS Stock No. 899-7205
  • Mfr. Part No. 7447649168
Subtotal (1 bag of 10 units)
SGD5.60(exc. GST)
SGD0.56/unit
In Stock
Vishay ISOA100R14700JT, 470 Ω 100 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 261-0215
  • Mfr. Part No. ISOA100R14700JT
Subtotal (1 unit)
SGD38.32(exc. GST)
SGD38.32/unit
Last RS stock
TE Connectivity 820 kΩ Metal Oxide Resistor 1 W 5 % ROX1SJ820K
  • RS Stock No. 214-1529
  • Mfr. Part No. ROX1SJ820K
Subtotal (1 pack of 10 units)
SGD1.89(exc. GST)
SGD0.189/unit
Temporarily out of stock
Yageo RC 4.7 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 125 mW - RC0805FR-074R7L
  • RS Stock No. 242-7026
  • Mfr. Part No. RC0805FR-074R7L
Subtotal (1 tape of 100 units)
SGD3.10(exc. GST)
SGD0.031/unit
In Stock
Murata 27 pF Multilayer Ceramic Capacitor, 50V dc, 5 %, Surface
  • RS Stock No. 247-7800
  • Mfr. Part No. GCM1555C1H270JA16D
Subtotal (1 tape of 100 units)
SGD1.90(exc. GST)
SGD0.019/unit
In Stock
KOA RN73R 3 kΩ, 0402 Metal Film Surface Mount Resistor ±1 % 0.06 W - RN73R1ETTP3001F25
  • RS Stock No. 253-3045
  • Mfr. Part No. RN73R1ETTP3001F25
Subtotal (1 tape of 5 units)
SGD1.46(exc. GST)
SGD0.292/unit
In Stock
Wurth Elektronik, WE-MAPI, 3015 Wirewound Surface Mount Inductor with a Composite Iron Powder Core, 33 μH Moulded ±20 %
  • RS Stock No. 792-2815
  • Mfr. Part No. 74438335330
Subtotal (1 unit)
SGD2.29(exc. GST)
SGD2.29/unit
Temporarily out of stock
Yageo RT 110 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RT0402BRD07110KL
  • RS Stock No. 199-1274
  • Mfr. Part No. RT0402BRD07110KL
Subtotal (1 reel of 10000 units)
SGD860.00(exc. GST)
SGD0.086/unit
Temporarily out of stock
Murata 10 μF Multilayer Ceramic Capacitor, 6.3V dc, 20 %, Surface
  • RS Stock No. 260-8752
  • Mfr. Part No. GRM155R60J106ME05D
Subtotal (1 reel of 10000 units)
SGD180.00(exc. GST)
SGD0.018/unit
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