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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158871 Products showing for Passive Components

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Wurth Elektronik Ferrite Bead 0.9 mm 1.2 mm (0805) (EMI Suppression), 220 Ω impedance at 100 MHz
  • RS Stock No. 669-4099P
  • Mfr. Part No. 742792022
Subtotal 10 units (supplied on a continuous strip)
SGD2.14(exc. GST)
SGD0.214/unit
Last RS stock
Panasonic, ETQP4M, 1040 Surface Mount Inductor with a Metal Composite Core, 4.7 μH Integral Construction ±20 % 10.4 A
  • RS Stock No. 122-1766
  • Mfr. Part No. ETQP4M4R7KVC
Subtotal (1 bag of 10 units)
SGD9.72(exc. GST)
SGD0.972/unit
In Stock
Panasonic ERA 6.04 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB6041V
  • RS Stock No. 708-7663
  • Mfr. Part No. ERA3AEB6041V
Subtotal (1 pack of 5 units)
SGD0.61(exc. GST)
SGD0.122/unit
In Stock
Wurth Elektronik, WE-SPC, 4838 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 47 μH ±20 % 0.8 A Idc
  • RS Stock No. 749-8423
  • Mfr. Part No. 74408943470
Subtotal (1 unit)
SGD2.43(exc. GST)
SGD2.43/unit
Last RS stock
KEMET C87 Film Capacitor P2, ±5 %, 1.8 μF 450V ac, Stud Mount
  • RS Stock No. 173-5036
  • Mfr. Part No. C878ZF34180SA0J
Subtotal (1 bag of 115 units)
SGD637.445(exc. GST)
SGD5.543/unit
In Stock
KOA RK73H 330 Ω, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - RK73HW3ATTE3300F
  • RS Stock No. 123-4484
  • Mfr. Part No. RK73HW3ATTE3300F
Subtotal (1 bag of 50 units)
SGD36.60(exc. GST)
SGD0.732/unit
Last RS stock
Vishay CRCW 180 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW1206180KFKEA
  • RS Stock No. 169-4811
  • Mfr. Part No. CRCW1206180KFKEA
Subtotal (1 reel of 5000 units)
SGD115.00(exc. GST)
SGD0.023/unit
In Stock
TDK 27 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 144-7349
  • Mfr. Part No. CGA1A2C0G1H270J030BA
Subtotal (1 pack of 250 units)
SGD9.75(exc. GST)
SGD0.039/unit
In Stock
Panasonic 680 μF Capacitor 6.3V dc, Surface
  • RS Stock No. 262-4881P
  • Mfr. Part No. EEEFN1A681L
Subtotal 10 units (supplied on a continuous strip)
SGD6.55(exc. GST)
SGD0.655/unit
In Stock
Wurth Elektronik 47 μF Multilayer Ceramic Capacitor, 16V dc, ±20 %, Surface
  • RS Stock No. 242-1117
  • Mfr. Part No. 885012109011
Subtotal (1 pack of 10 units)
SGD23.57(exc. GST)
SGD2.357/unit
Temporarily out of stock
Panasonic 330 μF Polymer Capacitor 25V dc, Surface - 25SVPF330M
  • RS Stock No. 103-4739
  • Mfr. Part No. 25SVPF330M
Subtotal (1 reel of 400 units)
SGD613.60(exc. GST)
SGD1.534/unit
In Stock
Schurter, FMAD 25 A 480V ac 50Hz, 60 Hz, Screw RFI Filter, Screw 3 Phase
  • RS Stock No. 782-4165
  • Mfr. Part No. FMAD-0932-2510
Subtotal (1 unit)
SGD472.25(exc. GST)
SGD472.25/unit
Currently unavailable
TE Connectivity 1.5 kΩ Wirewound Resistor 5 W 5 EP5W1K5J
  • RS Stock No. 164-4985
  • Mfr. Part No. EP5W1K5J
Subtotal (1 box of 1000 units)
SGD566.00(exc. GST)
SGD0.566/unit
Last RS stock
Arcol Ohmite TKH 500 mΩ, TO-252 Thick Film Surface Mount Resistor ±1 % 45 W - TKH45PR500JE-TR
  • RS Stock No. 210-4714
  • Mfr. Part No. TKH45PR500JE-TR
Subtotal (1 reel of 500 units)
SGD4,684.50(exc. GST)
SGD9.369/unit
Temporarily out of stock
Panasonic ERJU03 160 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJU03F1600V
  • RS Stock No. 172-3497
  • Mfr. Part No. ERJU03F1600V
Subtotal (1 reel of 5000 units)
SGD160.00(exc. GST)
SGD0.032/unit
Temporarily out of stock
Renesas Electronics, 100MHz Clock Oscillator Oscillator, 25 ppm HCSL LGA XFN336100.000000I
  • RS Stock No. 239-8089
  • Mfr. Part No. XFN336100.000000I
Subtotal (1 tape of 100 units)
SGD1,392.90(exc. GST)
SGD13.929/unit
In Stock
RS PRO 680 μF Capacitor 16V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 170-1173
Subtotal (1 bag of 1000 units)
SGD188.00(exc. GST)
SGD0.188/unit
In Stock
Panasonic 330 μF Polymer Capacitor 6.3V dc, TPS Series
  • RS Stock No. 210-4886
  • Mfr. Part No. ETPS330MUD
Subtotal (1 tape of 5 units)
SGD13.50(exc. GST)
SGD2.70/unit
In Stock
Panasonic ERJ2GE 4.7 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±5 % Surface 0.1 W - ERJ2GEJ4R7X
  • RS Stock No. 785-151P
  • Mfr. Part No. ERJ2GEJ4R7X
Subtotal 10 units (supplied as a tape)
SGD0.11(exc. GST)
SGD0.011/unit
Temporarily out of stock
Abracon 80 MHz MEMS Oscillator, 4-Pin Surface Mount ±50 ppm ASDM1-80.000MHZ-LC-T
  • RS Stock No. 241-3068
  • Mfr. Part No. ASDM1-80.000MHZ-LC-T
Subtotal (1 pack of 5 units)
SGD18.95(exc. GST)
SGD3.79/unit
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