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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158191 Products showing for Passive Components

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KOA RK73B 4.7 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.05 W - RK73B1HTTC4R7J
  • RS Stock No. 172-9424
  • Mfr. Part No. RK73B1HTTC4R7J
Subtotal (1 pack of 200 units)
SGD5.40(exc. GST)
SGD0.027/unit
Temporarily out of stock
KEMET 2.14 mH 14 A Choke 8.45 mΩ
  • RS Stock No. 735-379
  • Mfr. Part No. SCF23X-140-1R5A013JV
Subtotal (1 unit)
SGD8.89(exc. GST)
SGD8.89/unit
Temporarily out of stock
Panasonic ERJ1T 120 mΩ, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - ERJ1TRSFR12U
  • RS Stock No. 721-6192
  • Mfr. Part No. ERJ1TRSFR12U
Subtotal (1 pack of 5 units)
SGD7.40(exc. GST)
SGD1.48/unit
In Stock
Panasonic 10 μF Electrolytic Capacitor 25V, Radial - ECEA1EKA100 Radial
  • RS Stock No. 759-063P
  • Mfr. Part No. ECEA1EKA100
Subtotal 5 units (supplied in a bag)
SGD1.13(exc. GST)
SGD0.226/unit
Currently unavailable
RS PRO 560 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W
  • RS Stock No. 804-9062
Subtotal (1 reel of 5000 units)
SGD20.00(exc. GST)
SGD0.004/unit
Last RS stock
TE Connectivity 510 kΩ, 1225 Thick Film Surface Mount Fixed Resistor 1 % 3 W - 3430A3F510KTE
  • RS Stock No. 274-7127
  • Mfr. Part No. 3430A3F510KTE
Subtotal (1 reel of 4000 units)
SGD1,856.00(exc. GST)
SGD0.464/unit
In Stock
Wurth Elektronik, WE-MCI, 0603 Shielded Surface Mount Inductor with a Ceramic Core, 8.2 nH Multilayer ±5 % 300 mA Idc
  • RS Stock No. 245-8746P
  • Mfr. Part No. 7847805820
Subtotal 10 units (supplied on a continuous strip)
SGD0.69(exc. GST)
SGD0.069/unit
In Stock
RS PRO 10 Ω, 1206 Polymer Resistor 5 % 7 W
  • RS Stock No. 257-3201
Subtotal (1 tape of 100 units)
SGD8.40(exc. GST)
SGD0.084/unit
Currently unavailable
TE Connectivity 30.1 Ω Metal Film Resistor 0.25 W 0.1 % YR1B30R1CC
  • RS Stock No. 754-9088
  • Mfr. Part No. YR1B30R1CC
Subtotal (1 pack of 5 units)
SGD2.90(exc. GST)
SGD0.58/unit
Currently unavailable
TE Connectivity Chip Inductor Inductor Kit, 2150 pieces
  • RS Stock No. 163-8441
  • Mfr. Part No. 3650 0402 LAB KIT
Subtotal (1 box of 10 units)
SGD11,463.40(exc. GST)
SGD1,146.34/unit
In Stock
TE Connectivity CRGH 100 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - CRGH1206F100K
  • RS Stock No. 807-1057
  • Mfr. Part No. CRGH1206F100K
Subtotal (1 bag of 100 units)
SGD8.30(exc. GST)
SGD0.083/unit
Temporarily out of stock
KOA RN73R 10 kΩ, 1206 Metal Film Surface Mount Resistor ±0.1 % 0.25 W - RN73R2BTTD1002B25
  • RS Stock No. 253-3341
  • Mfr. Part No. RN73R2BTTD1002B25
Subtotal (1 reel of 5000 units)
SGD880.00(exc. GST)
SGD0.176/unit
Temporarily out of stock
Wurth Elektronik 220 μF Capacitor 6.3V dc, Surface Solder - 865090145006
  • RS Stock No. 163-5752
  • Mfr. Part No. 865090145006
Subtotal (1 reel of 900 units)
SGD318.60(exc. GST)
SGD0.354/unit
Currently unavailable
Panasonic ERJPC3 523 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B5230V
  • RS Stock No. 785-062
  • Mfr. Part No. ERJPC3B5230V
Subtotal (1 tape of 10 units)
SGD0.82(exc. GST)
SGD0.082/unit
Currently unavailable
TE Connectivity 3.92 kΩ Metal Film Resistor 0.25 W 0.1 % YR1B3K92CC
  • RS Stock No. 754-5711
  • Mfr. Part No. YR1B3K92CC
Subtotal (1 pack of 5 units)
SGD5.56(exc. GST)
SGD1.112/unit
Last RS stock
Vishay WSR2 10 mΩ, 4257 (11070M) Metal Strip Surface Mount Resistor ±1 % Surface 2 W
  • RS Stock No. 683-6669P
  • Mfr. Part No. WSR2R0100FEA
Subtotal 5 units (supplied on a continuous strip)
SGD7.10(exc. GST)
SGD1.42/unit
Temporarily out of stock
Wurth Elektronik, WE-LQS, 252012 Shielded Wirewound Surface Mount Inductor 33 μH Semi Shielded ±20 % 440 mA Idc
  • RS Stock No. 163-4768
  • Mfr. Part No. 74404024330
Subtotal (1 reel of 2000 units)
SGD1,608.00(exc. GST)
SGD0.804/unit
Currently unavailable
Vishay 56 Ω Thin Film Resistor 0.4 W 1 %
  • RS Stock No. 162-2838
  • Mfr. Part No. MBA02040C5609FC100
Subtotal (1 box of 1000 units)
SGD169.00(exc. GST)
SGD0.169/unit
Currently unavailable
TE Connectivity RN73 28 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RN73C2A28KB
  • RS Stock No. 163-8850
  • Mfr. Part No. RN73C2A28KB
Subtotal (1 reel of 1000 units)
SGD630.00(exc. GST)
SGD0.63/unit
Currently unavailable
Vishay CH 500 Ω, 2016 Thin Film Surface Mount Resistor 2 % 0.03 W - CH02016-330RGFT
  • RS Stock No. 238-5677
  • Mfr. Part No. CH02016-330RGFT
Subtotal (1 unit)
SGD10.34(exc. GST)
SGD10.34/unit
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