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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EMI Filters & Protection
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Passive Components Kits
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158092 Products showing for Passive Components

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Nichicon 33 μF Aluminium Electrolytic Capacitor 25V dc, Through Hole Radial Lead
  • RS Stock No. 714-9638
  • Mfr. Part No. RNS1E330MDN1PH
Subtotal (1 pack of 5 units)
SGD13.48(exc. GST)
SGD13.48/pack
In Stock
TE Connectivity SMQ 220 kΩ Metal Film Surface Mount Resistor 5 % Solder 3 W - SMQF34K7JT
  • RS Stock No. 286-7481P
  • Mfr. Part No. SMQF34K7JT
Subtotal 5 units (supplied on a continuous strip)
SGD11.02(exc. GST)
SGD2.204/unit
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KEMET 100 pF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 146-4282P
  • Mfr. Part No. C0603C101K5RACTU
Subtotal 50 units (supplied on a continuous strip)
SGD3.00(exc. GST)
SGD0.06/unit
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Molex NTC Thermistor, NTC Type 10 kΩ 100 mm
  • RS Stock No. 230-2123
  • Mfr. Part No. 215272-3607
Subtotal (1 pack of 5 units)
SGD14.21(exc. GST)
SGD2.842/unit
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Panasonic 33 μF Aluminium Polymer Capacitor 63V dc, Surface
  • RS Stock No. 758-1288
  • Mfr. Part No. EEHZA1J330P
Subtotal (1 pack of 2 units)
SGD3.08(exc. GST)
SGD1.54/unit
Currently unavailable
Panasonic 47 μF Surface Polymer Capacitor, 16V dc
  • RS Stock No. 795-5730P
  • Mfr. Part No. 16TQC47MYFT
Subtotal 2 units (supplied on a continuous strip)
SGD5.59(exc. GST)
SGD2.795/unit
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TE Connectivity 3520 4.7 Ω, 2512 Thick Film Surface Mount Resistor ±5 % Surface 1 W - 35204R7JT
  • RS Stock No. 224-0092
  • Mfr. Part No. 35204R7JT
Subtotal (1 pack of 10 units)
SGD1.77(exc. GST)
SGD0.177/unit
Currently unavailable
VPG Foil Resistors 5 kΩ Metal Foil Resistor 0.5 W 0.01 % RCKO2 5K 0.01%
  • RS Stock No. 201-9898
  • Mfr. Part No. RCKO2 5K 0.01%
Subtotal (1 unit)
SGD50.31(exc. GST)
SGD50.31/unit
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ROHM MCRS Series 180 Ω, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF1801
  • RS Stock No. 780-561
  • Mfr. Part No. MCR03SEQPF1801
Subtotal (1 tape of 1000 units)
SGD15.00(exc. GST)
SGD0.015/unit
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Panasonic ERJ 1.1 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ2RKF1101X
  • RS Stock No. 183-9018
  • Mfr. Part No. ERJ2RKF1101X
Subtotal (1 reel of 1000 units)
SGD12.00(exc. GST)
SGD0.012/unit
Currently unavailable
Panasonic, ETQP4M, 1040 Shielded Surface Mount Inductor with a Metal Composite Core, 10 μH 7.1 A Idc
  • RS Stock No. 122-1749
  • Mfr. Part No. ETQP4M100KVC
Subtotal (1 bag of 10 units)
SGD10.45(exc. GST)
SGD1.045/unit
Currently unavailable
KEMET 100 μF Surface Polymer Capacitor, 63V
  • RS Stock No. 244-0168
  • Mfr. Part No. A769MS107M1JLAS018
Subtotal (1 reel of 400 units)
SGD304.80(exc. GST)
SGD0.762/unit
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Bourns, SM 185 V dc 4 kA, Surface 3 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 233-0723
  • Mfr. Part No. 2030-23T-SM-RPLF
Subtotal (1 reel of 1000 units)
SGD2,300.00(exc. GST)
SGD2.30/unit
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RS PRO 1 mΩ, 0603 Thin Film Resistor 0.1 % 0.06 W
  • RS Stock No. 243-0485
Subtotal (1 tape of 100 units)
SGD8.60(exc. GST)
SGD0.086/unit
Temporarily out of stock
RS PRO 2200 μF Capacitor 16V dc, Axial, Through Hole Axial
  • RS Stock No. 162-0730
Subtotal (1 bag of 200 units)
SGD250.60(exc. GST)
SGD1.253/unit
In Stock
RS PRO 1.2 kΩ Carbon Film Resistor 2 W 5 %
  • RS Stock No. 707-8870P
Subtotal 10 units (supplied as a tape)
SGD2.88(exc. GST)
SGD0.288/unit
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Vishay 100 nF Multilayer Ceramic Capacitor, 50V dc, 10 %, Through Hole Axial
  • RS Stock No. 210-7757
  • Mfr. Part No. A104K15X7RF5UAAP
Subtotal (1 pack of 10 units)
SGD5.22(exc. GST)
SGD0.522/unit
Temporarily out of stock
Bourns, SRP7050AA, 7050 Shielded Power Inductor with a Metal Alloy Powder Core, 1 μH ±20 % 17 A Idc Q:10
  • RS Stock No. 247-6170
  • Mfr. Part No. SRP7050AA-1R0M
Subtotal (1 reel of 800 units)
SGD733.60(exc. GST)
SGD0.917/unit
Currently unavailable
TE Connectivity CRGH 560 Ω, 0805 Thick Film Surface Mount Resistor ±5 % Surface 0.33 W - CRGH0805J560R
  • RS Stock No. 164-5453
  • Mfr. Part No. CRGH0805J560R
Subtotal (1 reel of 5000 units)
SGD110.00(exc. GST)
SGD0.022/unit
In Stock
Vishay MMA 1.8 kΩ, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W - MMA02040C1801FB300
  • RS Stock No. 180-3716
  • Mfr. Part No. MMA02040C1801FB300
Subtotal (1 reel of 500 units)
SGD33.00(exc. GST)
SGD0.066/unit
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