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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163877 Products showing for Passive Components

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TE Connectivity 23 1 MΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 23ESA105MMF50NF
  • RS Stock No. 168-207
  • Mfr. Part No. 23ESA105MMF50NF
Subtotal (1 unit)
SGD8.88(exc. GST)
SGD8.88/unit
In Stock
TE Connectivity 47 kΩ Metal Film Resistor 0.6 W 1 % LR1F47K
  • RS Stock No. 148-893
  • Mfr. Part No. LR1F47K
Subtotal (1 pack of 10 units)
SGD0.47(exc. GST)
SGD0.047/unit
In Stock
TDK 2 pF Multilayer Ceramic Capacitor, 100V dc, 0.25 pF, Surface
  • RS Stock No. 179-5958
  • Mfr. Part No. CGA3E2C0G2A020C080AA
Subtotal (1 reel of 500 units)
SGD28.00(exc. GST)
SGD0.056/unit
In Stock
TDK 100 μF Multilayer Ceramic Capacitor, 6.3V dc, ±20 %, Surface
  • RS Stock No. 903-9145
  • Mfr. Part No. C3216X5R0J107M160AB
Subtotal (1 pack of 5 units)
SGD3.87(exc. GST)
SGD0.774/unit
Temporarily out of stock
Yageo RT 300 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD07300KL
  • RS Stock No. 199-1500
  • Mfr. Part No. RT0603BRD07300KL
Subtotal (1 reel of 5000 units)
SGD305.00(exc. GST)
SGD0.061/unit
Temporarily out of stock
KEMET Polymer Base Blended with Micron Sized Magnetic Powders Shielding Sheet 240 mm x 80mm x 200 μm
  • RS Stock No. 181-5692
  • Mfr. Part No. EFF4(02)-240X80T0800
Subtotal (1 bag of 25 units)
SGD1,123.10(exc. GST)
SGD44.924/unit
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Siretta MIKE1A/5M/SMAM/S/S/20 Rod Omni-Directional Antenna with SMA Connector
  • RS Stock No. 124-8692
  • Mfr. Part No. MIKE1A/5M/SMAM/S/S/20
Subtotal (1 unit)
SGD21.26(exc. GST)
SGD21.26/unit
In Stock
Panasonic 330 μF Capacitor 25V dc, Surface Solder - EEEFH1E331UL 500
  • RS Stock No. 215-8430
  • Mfr. Part No. EEEFH1E331UL
Subtotal (1 tape of 10 units)
SGD11.20(exc. GST)
SGD1.12/unit
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Panasonic 47 μF Polymer Capacitor 16V dc, Surface - 16SVPG47M
  • RS Stock No. 179-3364
  • Mfr. Part No. 16SVPG47M
Subtotal (1 reel of 2500 units)
SGD3,982.50(exc. GST)
SGD1.593/unit
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Abracon 24 MHz Crystal Unit ±30 ppm Surface Mount 4-Pin 1.2 mm 5 mm 3.2mm
  • RS Stock No. 226-0663
  • Mfr. Part No. FC5BQCCMM24.0-T1
Subtotal (1 reel of 1000 units)
SGD1,020.00(exc. GST)
SGD1.02/unit
Temporarily out of stock
Panasonic 220 μF Polymer Capacitor 6.3V dc, Surface - EEFCX0J221R
  • RS Stock No. 179-3403
  • Mfr. Part No. EEFCX0J221R
Subtotal (1 reel of 3500 units)
SGD4,410.00(exc. GST)
SGD1.26/unit
In Stock
Abracon, 8MHz Clock Oscillator Crystal Oscillator HCMOS, 4-Pin Surface Mount
  • RS Stock No. 240-3616P
  • Mfr. Part No. ASV-8.000MHZ-EJ-T
Subtotal 10 units (supplied on a continuous strip)
SGD21.40(exc. GST)
SGD2.14/unit
In Stock
Wurth Elektronik Ferrite Bead 7.2 mm 7.2 mm (EMI Suppression Axial Ferrite Bead), 131 Ω impedance at 25 MHz, 203 Ω
  • RS Stock No. 332-425
  • Mfr. Part No. 74270045
Subtotal (1 bag of 5 units)
SGD9.75(exc. GST)
SGD1.95/unit
Currently unavailable
Murata Power Solutions 680 μH Leaded Inductor, Max SRF:2.5 MHz, Q:120, 250 mA Idc, 2640 mΩ Rdc, 2200R
  • RS Stock No. 106-7763
  • Mfr. Part No. 22R684C
Subtotal (1 bag of 100 units)
SGD82.80(exc. GST)
SGD0.828/unit
In Stock
Arcol Ohmite HS300 1K J, 1 kΩ 300 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 136-367
  • Mfr. Part No. HS300 1K J
Subtotal (1 unit)
SGD81.49(exc. GST)
SGD81.49/unit
In Stock
TE Connectivity TE1200B47RJ, 47 Ω 1.2 kW Wirewound High Power Resistor ±5 %
  • RS Stock No. 224-0119
  • Mfr. Part No. TE1200B47RJ
Subtotal (1 box of 5 units)
SGD1,279.15(exc. GST)
SGD255.83/unit
In Stock
TDK, SPM-LR, 3012 Shielded Wirewound Surface Mount Inductor with a Metal Core, 1.5 μH ±20 % 2.9 A Idc
  • RS Stock No. 123-3125
  • Mfr. Part No. SPM3012T-1R5M-LR
Subtotal (1 pack of 10 units)
SGD12.04(exc. GST)
SGD1.204/unit
Last RS stock
TE Connectivity 22 kΩ Carbon Film Resistor 0.25 W 5 % CFR16J22K
  • RS Stock No. 135-954
  • Mfr. Part No. CFR16J22K
Subtotal (1 pack of 10 units)
SGD0.53(exc. GST)
SGD0.053/unit
In Stock
Yageo 4.7 μF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 198-8076P
  • Mfr. Part No. CC0805KKX5R7BB475
Subtotal 25 units (supplied on a continuous strip)
SGD5.93(exc. GST)
SGD0.237/unit
Temporarily out of stock
Panasonic ERJ B1 10 kΩ, 1020 Thick Film Resistor ±1 % 1 W - ERJB1AF103U
  • RS Stock No. 228-0432
  • Mfr. Part No. ERJB1AF103U
Subtotal (1 reel of 5000 units)
SGD1,720.00(exc. GST)
SGD0.344/unit
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