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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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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163920 Products showing for Passive Components

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In Stock
Arcol Ohmite HS25E3 56R F M145, 56 Ω 25 W Wirewound Chassis Mount Resistor ±1 %
  • RS Stock No. 195-4086
  • Mfr. Part No. HS25E3 56R F M145
Subtotal (1 unit)
SGD20.67(exc. GST)
SGD20.67/unit
Currently unavailable
NISSEI AMZ Polyester Capacitor, ±5 %, 22 nF 50 V dc 50V ac, Through Hole
  • RS Stock No. 183-3167
  • Mfr. Part No. AMZ0050J22300000000
Subtotal (1 pack of 10 units)
SGD4.31(exc. GST)
SGD0.431/unit
Limited stock
Yageo 47 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 198-5391P
  • Mfr. Part No. AC0805KRX7R9BB473
Subtotal 100 units (supplied on a continuous strip)
SGD7.70(exc. GST)
SGD0.077/unit
Temporarily out of stock
Wurth Elektronik 10 μF Surface Polymer Capacitor, 50V dc
  • RS Stock No. 257-0076
  • Mfr. Part No. 875115752001
Subtotal (1 reel of 500 units)
SGD712.50(exc. GST)
SGD1.425/unit
In Stock
Wurth Elektronik, WE-MK, 0603 Shielded Multilayer Surface Mount Inductor with a Ceramic Core, 39 nH Multilayer ±2 % 300
  • RS Stock No. 245-8506
  • Mfr. Part No. 7447860139G
Subtotal (1 tape of 10 units)
SGD1.22(exc. GST)
SGD0.122/unit
In Stock
Panasonic, VF Varistor 10 A, Clamping 200 V, Varistor 120 V
  • RS Stock No. 287-450P
  • Mfr. Part No. ERZVF2M121
Subtotal 10 units (supplied in a box)
SGD21.20(exc. GST)
SGD2.12/unit
Temporarily out of stock
RS PRO 97 dB Surface Continuous External Magnetic Buzzer Component 3.2 mm 3 V Min 8.5 mm 8.5mm 5V Max
  • RS Stock No. 754-2065
Subtotal (1 bag of 5 units)
SGD25.31(exc. GST)
SGD5.062/unit
In Stock
Bourns CR 4.75 kΩ, 0805 Thick Film Resistor 1 % Surface 125 mW - CR0805-FX-4751ELF
  • RS Stock No. 630-529
  • Mfr. Part No. CR0805-FX-4751ELF
Subtotal (1 tape of 20 units)
SGD0.36(exc. GST)
SGD0.018/unit
In Stock
Murata Ferrite Bead 800 μm (Solder) (0603) (Chip Ferrite Bead), 470 Ω impedance at 100 MHz
  • RS Stock No. 104-8529
  • Mfr. Part No. BLM18AG471SH1D
Subtotal (1 pack of 200 units)
SGD12.80(exc. GST)
SGD0.064/unit
In Stock
Vishay CRCW 20 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW040220K0FKED
  • RS Stock No. 181-9137
  • Mfr. Part No. CRCW040220K0FKED
Subtotal (1 reel of 1000 units)
SGD17.00(exc. GST)
SGD0.017/unit
Temporarily out of stock
Panasonic ERJPC3 340 Ω, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B3400V
  • RS Stock No. 789-926
  • Mfr. Part No. ERJPC3B3400V
Subtotal (1 tape of 10 units)
SGD0.82(exc. GST)
SGD0.082/unit
Temporarily out of stock
TE Connectivity 2504615-3 FPC Antenna with MHF4L Connector, 2400 MHz, 7125 MHz, WiFi
  • RS Stock No. 849-516
  • Mfr. Part No. 2504615-3
Subtotal (1 bag of 3000 units)
SGD3,207.00(exc. GST)
SGD1.069/unit
Temporarily out of stock
Yageo RC0805 5.1 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - RC0805FR-075R1L
  • RS Stock No. 618-1723
  • Mfr. Part No. RC0805FR-075R1L
Subtotal (1 pack of 5000 units)
SGD80.00(exc. GST)
SGD0.016/unit
Currently unavailable
Panasonic ERA 18 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3ARB183V
  • RS Stock No. 892-1277P
  • Mfr. Part No. ERA3ARB183V
Subtotal 100 units (supplied on a continuous strip)
SGD38.40(exc. GST)
SGD0.384/unit
In Stock
Bourns, 4600X 1 kΩ 2 % BUS Resistor Array, 7 Resistors, 1 W total, SIP, Solder
  • RS Stock No. 522-3668
  • Mfr. Part No. 4608X-101-102LF
Subtotal (1 pack of 25 units)
SGD5.55(exc. GST)
SGD0.222/unit
Currently unavailable
KEMET C4AF Film Capacitor, 10 %, 15 μF 500 V dc 500V ac, Through Hole
  • RS Stock No. 258-4261
  • Mfr. Part No. C4AFAEW5150F3AK
Subtotal (1 unit)
SGD25.28(exc. GST)
SGD25.28/unit
In Stock
10 kΩ, Surface Trimmer Potentiometer, Gull Wing 0.25 W Top Adjust Vishay, TS53
  • RS Stock No. 486-7526
  • Mfr. Part No. TS53YL103MR10
Subtotal (1 pack of 5 units)
SGD17.55(exc. GST)
SGD3.51/unit
Currently unavailable
Vishay, IHLE3232, 3232 Shielded Surface Mount Inductor 33 μH ±20 % 3.1 A Idc
  • RS Stock No. 228-8681
  • Mfr. Part No. IHLE3232DDER330M5A
Subtotal (1 tape of 5 units)
SGD11.23(exc. GST)
SGD2.246/unit
Currently unavailable
TDK B32776 Film Capacitor 10 μF 1.3kV ac 1.3 kV dc, Through Hole 2
  • RS Stock No. 194-3727
  • Mfr. Part No. B32776Z1106K000
Subtotal (1 unit)
SGD13.10(exc. GST)
SGD13.10/unit
In Stock
Yageo 150 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 200-6478P
  • Mfr. Part No. CC0603JRNPO9BN151
Subtotal 250 units (supplied on a reel)
SGD8.00(exc. GST)
SGD0.032/unit
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