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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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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161433 Products showing for Passive Components

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7704 of 999+
In Stock
Nichicon 120 μF Capacitor 450V dc, Snap-in - LGW2W121MELZ35
  • RS Stock No. 846-7057
  • Mfr. Part No. LGW2W121MELZ35
Subtotal (1 unit)
SGD8.46(exc. GST)
SGD8.46/unit
In Stock
Yageo 4.7 kΩ Metal Film Metal Film Fixed Resistor 0.5 W 1 % MFR50SFTE52-4K7
  • RS Stock No. 199-7691
  • Mfr. Part No. MFR50SFTE52-4K7
Subtotal (1 tape of 100 units)
SGD4.30(exc. GST)
SGD0.043/unit
Currently unavailable
Syfer Technology 2.2 pF Multilayer Ceramic Capacitor, 50V dc, 0.5 pF
  • RS Stock No. 170-6525
  • Mfr. Part No. 0805Y0502P20DCT
Subtotal (1 reel of 3000 units)
SGD1,014.00(exc. GST)
SGD0.338/unit
Temporarily out of stock
Wurth Elektronik 680 μF Capacitor 16V dc, Through Hole - 860160374028 Radial Lead
  • RS Stock No. 163-7017
  • Mfr. Part No. 860160374028
Subtotal (1 box of 800 units)
SGD376.00(exc. GST)
SGD0.47/unit
In Stock
Panasonic ERJ PA2 1 mΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.2 W
  • RS Stock No. 287-662P
  • Mfr. Part No. ERJPA2F1004X
Subtotal 10 units (supplied on a continuous strip)
SGD0.91(exc. GST)
SGD0.091/unit
In Stock
Wurth Elektronik, WE-MK, 0603 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 330 nH Multilayer ±2 % 300
  • RS Stock No. 245-8529
  • Mfr. Part No. 7447860233G
Subtotal (1 reel of 4000 units)
SGD452.00(exc. GST)
SGD0.113/unit
In Stock
Panasonic ERA8V 560 Ω, 1206 Thin Film Resistor 0.1 % 0.25 W
  • RS Stock No. 259-7019P
  • Mfr. Part No. ERA8VEB5600V
Subtotal 10 units (supplied on a continuous strip)
SGD7.16(exc. GST)
SGD0.716/unit
Temporarily out of stock
Wurth Elektronik Ferrite Bead 15 mm (Through Hole) 6 mm (Axial) (Ferrite Bead), 720 Ω impedance at 25 MHz, 1240 Ω
  • RS Stock No. 163-7795
  • Mfr. Part No. 74275223
Subtotal (1 bag of 200 units)
SGD281.80(exc. GST)
SGD1.409/unit
Temporarily out of stock
Panasonic ERA 249 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB2493V
  • RS Stock No. 106-9654
  • Mfr. Part No. ERA3AEB2493V
Subtotal (1 reel of 5000 units)
SGD325.00(exc. GST)
SGD0.065/unit
Last RS stock
KOA RN73H 10 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RN73H1JTTD1002B25
  • RS Stock No. 187-7818
  • Mfr. Part No. RN73H1JTTD1002B25
Subtotal (1 reel of 250 units)
SGD31.25(exc. GST)
SGD0.125/unit
Currently unavailable
Vishay F340X2 Film Capacitor X2, ±20 %, 1 μF 305 V dc 305V ac, Through Hole
  • RS Stock No. 187-8097
  • Mfr. Part No. F340X251030MKM2T0
Subtotal (1 bag of 95 units)
SGD294.69(exc. GST)
SGD3.102/unit
In Stock
RS PRO 5.6 kΩ Metal Film Resistor 0.4 W 0.25 %
  • RS Stock No. 174-2730
Subtotal (1 pack of 100 units)
SGD11.60(exc. GST)
SGD0.116/unit
In Stock
KEMET 10 μF MnO2 Tantalum Capacitor 16V dc, Surface, T491 Series
  • RS Stock No. 177-5119
  • Mfr. Part No. T491A106K016AT
Subtotal (1 reel of 2000 units)
SGD378.00(exc. GST)
SGD0.189/unit
Temporarily out of stock
Yageo 47 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-47K
  • RS Stock No. 199-7667
  • Mfr. Part No. MFR-25FTE52-47K
Subtotal (1 box of 5000 units)
SGD95.00(exc. GST)
SGD0.019/unit
In Stock
Ecliptek, 50MHz XO Oscillator, 45 ppm CMOS, 4-Pin Surface Mount EC3645TS-50.000M TR
  • RS Stock No. 219-2055
  • Mfr. Part No. EC3645TS-50.000M TR
Subtotal (1 pack of 5 units)
SGD10.15(exc. GST)
SGD2.03/unit
In Stock
Vishay 33 Ω Wirewound Resistor 3 W 5 % AC03000003309JACCS
  • RS Stock No. 855-8737
  • Mfr. Part No. AC03000003309JACCS
Subtotal (1 pack of 5 units)
SGD4.14(exc. GST)
SGD0.828/unit
Currently unavailable
TDK 1 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 179-4951
  • Mfr. Part No. CGA4J3X8R1C105K125AB
Subtotal (1 reel of 2000 units)
SGD300.00(exc. GST)
SGD0.15/unit
Currently unavailable
Phoenix Contact, F-MS Surge Protection Plug 30 A Maximum Surge Current Type 2 Surge Protection Plug
  • RS Stock No. 130-124
  • Mfr. Part No. 2805392
Subtotal (1 pack of 10 units)
SGD1,893.16(exc. GST)
SGD189.316/unit
Currently unavailable
Panasonic ERA 78.7 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB78R7V
  • RS Stock No. 110-1074
  • Mfr. Part No. ERA3AEB78R7V
Subtotal (1 reel of 5000 units)
SGD305.00(exc. GST)
SGD0.061/unit
Last RS stock
NISSEI MMX Film Capacitor, ±10 %, 10 nF 400 V dc 400V ac, Through Hole
  • RS Stock No. 183-3458
  • Mfr. Part No. MMX0400K10300000000
Subtotal (1 pack of 10 units)
SGD5.62(exc. GST)
SGD0.562/unit
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