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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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
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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163876 Products showing for Passive Components

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Bourns, CAY16 49.9 Ω 1 % ISOL Resistor Array, 4 Resistors, 0.25 W total, 1206, Convex
  • RS Stock No. 243-7712
  • Mfr. Part No. CAY16A-49R9F4LF
Subtotal (1 tape of 10 units)
SGD1.04(exc. GST)
SGD0.104/unit
In Stock
Wurth Elektronik, WE-XHMI SMT, 4030 Shielded Surface Mount Inductor with a Polystyrene Core, 1.2 μH Shielded ±20 % 10.9
  • RS Stock No. 219-789
  • Mfr. Part No. 74439324012
Subtotal (1 tape of 10 units)
SGD23.48(exc. GST)
SGD2.348/unit
In Stock
Panasonic ERJ HP6 27 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.5 W - ERJHP6F27R0V
  • RS Stock No. 228-5027
  • Mfr. Part No. ERJHP6F27R0V
Subtotal (1 tape of 100 units)
SGD11.60(exc. GST)
SGD0.116/unit
In Stock
Panasonic ERJ HP6 470 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.5 W - ERJHP6F4700V
  • RS Stock No. 228-5056
  • Mfr. Part No. ERJHP6F4700V
Subtotal (1 tape of 100 units)
SGD11.60(exc. GST)
SGD0.116/unit
Temporarily out of stock
TE Connectivity 470 Ω Wirewound Resistor 7 W 5 % SBCHE6470RJ
  • RS Stock No. 206-1029
  • Mfr. Part No. SBCHE6470RJ
Subtotal (1 pack of 5 units)
SGD11.90(exc. GST)
SGD2.38/unit
Temporarily out of stock
Bourns 50 μH 200 mA Common Mode Choke 0.32 Ω 100V ac/dc, 50 V ac/dc
  • RS Stock No. 122-9200
  • Mfr. Part No. DR221-513AE
Subtotal (1 pack of 10 units)
SGD17.00(exc. GST)
SGD1.70/unit
Temporarily out of stock
Murata 10 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 247-7880
  • Mfr. Part No. GCM188R72A103KA37J
Subtotal (1 reel of 10000 units)
SGD140.00(exc. GST)
SGD0.014/unit
In Stock
Schurter, FMW2 3 A 250V ac 60Hz, Panel Mount RFI Filter, Solder Tab 1 Phase
  • RS Stock No. 110-6812
  • Mfr. Part No. 5500.2040
Subtotal (1 unit)
SGD22.44(exc. GST)
SGD22.44/unit
In Stock
Wurth Elektronik 47 μF Through Hole Aluminium Polymer Capacitor, 63V dc
  • RS Stock No. 275-9365
  • Mfr. Part No. 870575875005
Subtotal (1 unit)
SGD4.09(exc. GST)
SGD4.09/unit
In Stock
Mersen, STPT23 Surge Protector 440V Maximum Voltage Rating 20 kA Maximum Surge Current Type 2+3/Class II+III
  • RS Stock No. 179-3079
  • Mfr. Part No. 83230000 / SP23-20K-N
Subtotal (1 unit)
SGD73.44(exc. GST)
SGD73.44/unit
In Stock
Panasonic E96 27400 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.1 % Surface 0.13 W - ERA6AEB2742V
  • RS Stock No. 783-079
  • Mfr. Part No. ERA6AEB2742V
Subtotal (1 tape of 10 units)
SGD0.67(exc. GST)
SGD0.067/unit
Currently unavailable
TDK, VLS-E, 3015 Shielded Surface Mount Inductor with a Ferrite Core, 10 μH ±20 % 940 mA Idc
  • RS Stock No. 170-3320
  • Mfr. Part No. VLS3015ET-100M
Subtotal (1 reel of 2000 units)
SGD734.00(exc. GST)
SGD0.367/unit
Last RS stock
TE Connectivity 17P 470 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole
  • RS Stock No. 161-5162
  • Mfr. Part No. 17PCSA474MC19P
Subtotal (1 box of 100 units)
SGD816.10(exc. GST)
SGD8.161/unit
Temporarily out of stock
Abracon, 24MHz Crystal Oscillator Crystal Oscillator CMOS, 4-Pin Surface Mount ASE-24.000MHZ-ET
  • RS Stock No. 240-3559
  • Mfr. Part No. ASE-24.000MHZ-ET
Subtotal (1 reel of 1000 units)
SGD1,390.00(exc. GST)
SGD1.39/unit
Currently unavailable
Vishay 24 Ω Thin Film Resistor 0.4 W 1 % MBA02040C2409FC100
  • RS Stock No. 166-7682
  • Mfr. Part No. MBA02040C2409FC100
Subtotal (1 box of 1000 units)
SGD274.00(exc. GST)
SGD0.274/unit
In Stock
Wurth Elektronik, WE-CNSW, 1812 Unshielded Surface Mount Common Mode Line Filter with a Ferrite Core, 11 μH Dual -30 to
  • RS Stock No. 770-7130
  • Mfr. Part No. 744235110
Subtotal (1 bag of 5 units)
SGD12.35(exc. GST)
SGD2.47/unit
Currently unavailable
TE Connectivity 3430 2 kΩ, 0612 Thick Film Surface Mount Fixed Resistor 1 % Surface 1.5 W - 3430B2F2R0TD
  • RS Stock No. 274-7187
  • Mfr. Part No. 3430B2F2R0TD
Subtotal (1 reel of 5000 units)
SGD920.00(exc. GST)
SGD0.184/unit
In Stock
Panasonic E96 82500 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.1 % Surface 0.1 W - ERA3AEB8252V
  • RS Stock No. 782-587
  • Mfr. Part No. ERA3AEB8252V
Subtotal (1 tape of 10 units)
SGD0.64(exc. GST)
SGD0.064/unit
Temporarily out of stock
Murata 68 pF Multilayer Ceramic Capacitor, 50V dc, 5 %, Surface
  • RS Stock No. 247-7813
  • Mfr. Part No. GCM1555C1H680JA16D
Subtotal (1 reel of 10000 units)
SGD110.00(exc. GST)
SGD0.011/unit
In Stock
RS PRO 47 kΩ, 0805 Thin Film Resistor 0.1 % 0.4 W
  • RS Stock No. 243-0681
Subtotal (1 tape of 10 units)
SGD6.95(exc. GST)
SGD0.695/unit
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