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
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

160808 Products showing for Passive Components

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Temporarily out of stock
RS PRO 100 μF Capacitor 63V dc, Through Hole Radial Lead
  • RS Stock No. 181-5056
Subtotal (1 bag of 1000 units)
SGD313.00(exc. GST)
SGD0.313/unit
In Stock
Siretta TANGO57/MIMO/221/1M/SMAM/RP-SMAM Dome Omni-Directional GSM & GPRS Antenna with SMA RP, SMA Connector, ZigBee, NB
  • RS Stock No. 554-246
  • Mfr. Part No. TANGO57/MIMO/221/1M/SMAM/RP-SMAM
Subtotal (1 unit)
SGD194.71(exc. GST)
SGD194.71/unit
Last RS stock
TDK, SLF, 7045 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 220 μH ±20 % 450 mA Idc
  • RS Stock No. 741-3021P
  • Mfr. Part No. SLF7045T-221MR33-PF
Subtotal 10 units (supplied on a continuous strip)
SGD8.30(exc. GST)
SGD0.83/unit
Last RS stock
Vishay 680 Ω Wirewound High Power Wirewound Resistor 7 W 5 %
  • RS Stock No. 243-7630
  • Mfr. Part No. G24071936800JIC000
Subtotal (1 reel of 500 units)
SGD675.00(exc. GST)
SGD1.35/unit
Temporarily out of stock
Vishay CRCW 2.55 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW04022K55FKED
  • RS Stock No. 181-9226
  • Mfr. Part No. CRCW04022K55FKED
Subtotal (1 reel of 1000 units)
SGD15.00(exc. GST)
SGD0.015/unit
In Stock
KEMET 47 μF Multilayer Ceramic Capacitor, 16V dc, ±20 %, Surface
  • RS Stock No. 146-6311
  • Mfr. Part No. C1210C476M4PACTU
Subtotal (1 reel of 1000 units)
SGD728.00(exc. GST)
SGD0.728/unit
In Stock
RS PRO RS 7.5 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W
  • RS Stock No. 804-6521
Subtotal (1 reel of 5000 units)
SGD30.00(exc. GST)
SGD0.006/unit
In Stock
RS PRO 4700 μF Capacitor 50V dc, Through Hole Radial Lead
  • RS Stock No. 711-1526P
Subtotal 2 units (supplied in a bag)
SGD6.22(exc. GST)
SGD3.11/unit
Temporarily out of stock
Vishay F340Y2 Film Capacitor Y2, ±20 %, 680 nF 305 V dc 305V ac, Through Hole
  • RS Stock No. 187-8111
  • Mfr. Part No. F340Y246830MPM2T0
Subtotal (1 bag of 70 units)
SGD389.62(exc. GST)
SGD5.566/unit
In Stock
Wurth Elektronik, WE-MAPI, 3015 Wirewound Surface Mount Inductor with a Composite Iron Powder Core, 3.3 μH Moulded ±20 %
  • RS Stock No. 792-2792
  • Mfr. Part No. 74438335033
Subtotal (1 unit)
SGD1.47(exc. GST)
SGD1.47/unit
In Stock
Abracon, 18.432MHz Crystal Oscillator Oscillator, 50 ppm CMOS, 4-Pin Surface Mount ASE-18.432MHZ-LC-T
  • RS Stock No. 232-7264
  • Mfr. Part No. ASE-18.432MHZ-LC-T
Subtotal (1 pack of 10 units)
SGD16.39(exc. GST)
SGD1.639/unit
Temporarily out of stock
Murata, DFE3225RFD, 1210 Unshielded Surface Mount Inductor with a Metal Alloy Core, 4.7 μH ±20 % 3.4 A Idc
  • RS Stock No. 240-8495
  • Mfr. Part No. DFE322520FD-4R7M=P2
Subtotal (1 reel of 2000 units)
SGD1,018.40(exc. GST)
SGD1,018.40/reel
In Stock
Wurth Elektronik, WE-LQS, 4018 Shielded Wirewound Surface Mount Inductor 47 μH Semi Shielded ±20 % 600 mA Idc
  • RS Stock No. 814-2531P
  • Mfr. Part No. 74404042470
Subtotal 5 units (supplied on a continuous strip)
SGD7.32(exc. GST)
SGD1.464/unit
Temporarily out of stock
Nichicon 22 μF Capacitor 400V dc, Through Hole Radial Lead
  • RS Stock No. 165-3615
  • Mfr. Part No. UCS2G220MHD
Subtotal (1 box of 100 units)
SGD84.10(exc. GST)
SGD0.841/unit
Currently unavailable
TE Connectivity TLM 10 mΩ, 0805 Metal Strip Surface Mount Resistor ±5 % Surface 0.25 W - TLM2AER01JTE
  • RS Stock No. 164-6389
  • Mfr. Part No. TLM2AER01JTE
Subtotal (1 reel of 5000 units)
SGD1,565.00(exc. GST)
SGD0.313/unit
In Stock
RS PRO 220 μF Capacitor 25V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 181-5422
Subtotal (1 pack of 100 units)
SGD16.00(exc. GST)
SGD0.16/unit
Currently unavailable
2 mΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Nidec Components, FT-63
  • RS Stock No. 244-3742
  • Mfr. Part No. FT-63ETS101
Subtotal (1 pack of 10 units)
SGD4.20(exc. GST)
SGD0.42/unit
In Stock
Nichicon 470 μF Capacitor 400V dc, Snap-in - LGU2G471MELB
  • RS Stock No. 844-2865
  • Mfr. Part No. LGU2G471MELB
Subtotal (1 unit)
SGD13.63(exc. GST)
SGD13.63/unit
Temporarily out of stock
Wurth Elektronik WCAP-FTX2 Polypropylene Capacitor X2, ±10 %, 47 nF 275 V dc 275V ac, Through Hole
  • RS Stock No. 163-7702
  • Mfr. Part No. 890324023015CS
Subtotal (1 bag of 500 units)
SGD153.50(exc. GST)
SGD0.307/unit
Currently unavailable
Vishay 180 Ω Metal Film Metal Film Resistor 2 W 5 %
  • RS Stock No. 251-3835
  • Mfr. Part No. PR02000201800JR500
Subtotal (1 reel of 5000 units)
SGD640.00(exc. GST)
SGD0.128/unit
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