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
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

163723 Products showing for Passive Components

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Wurth Elektronik, WE-PD, 7332 Shielded Wirewound Surface Mount Inductor 68 μH ±20 % 740 mA Idc
  • RS Stock No. 798-1622
  • Mfr. Part No. 7447789168
Subtotal (1 unit)
SGD3.44(exc. GST)
SGD3.44/unit
Currently unavailable
Same Sky 90 dB Surface Buzzer Internal Magnetic Buzzer 10 mm 4 V dc Min 12.8 mm 7V dc Max
  • RS Stock No. 259-6320
  • Mfr. Part No. CT-1205C-SMT-TR
Subtotal (320 units, on reels of 320)
SGD877.76(exc. GST)
SGD2.743/unit
In Stock
Panasonic ECHU(X) 50 V dc 50V ac Film Capacitor, 1 nF, Surface
  • RS Stock No. 414-7210
  • Mfr. Part No. ECHU1H102GX5
Subtotal (10 units, in packs of 10)
SGD3.89(exc. GST)
SGD0.389/unit
Temporarily out of stock
Panasonic ERJP08 2.4 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.66 W - ERJP08F2401V
  • RS Stock No. 172-4329
  • Mfr. Part No. ERJP08F2401V
Subtotal (5000 units, on reels of 5000)
SGD295.00(exc. GST)
SGD0.059/unit
Last RS stock
TE Connectivity 680 Ω Carbon Film Resistor 2 W 5 %
  • RS Stock No. 135-342P
  • Mfr. Part No. CFR200J680R
Subtotal (10 units, supplied in a bag)
SGD3.39(exc. GST)
SGD0.339/unit
Currently unavailable
ROHM ESR10 56 kΩ, 0805 Thick Film Resistor ±5 % 0.4 W - ESR10EZPJ563
  • RS Stock No. 262-9609
  • Mfr. Part No. ESR10EZPJ563
Subtotal (5000 units, on reels of 5000)
SGD115.00(exc. GST)
SGD0.023/unit
In Stock
KEMET C4AQ Film Capacitor, ±5 %, 15 μF 1.5 kV dc, PCB
  • RS Stock No. 174-4447
  • Mfr. Part No. C4AQSBW5150A3OJ
Subtotal (1 unit)
SGD15.16(exc. GST)
SGD15.16/unit
Temporarily out of stock
Panasonic ERJ 1.2 kΩ, 0603 Thick Film Surface Mount Resistor ±0.5 % 0.1 W - ERJ3RBD1201V
  • RS Stock No. 169-0998
  • Mfr. Part No. ERJ3RBD1201V
Subtotal (5000 units, on reels of 5000)
SGD160.00(exc. GST)
SGD0.032/unit
In Stock
Panasonic ERA 14 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6APB1402V
  • RS Stock No. 840-5100
  • Mfr. Part No. ERA6APB1402V
Subtotal (10 units, in packs of 10)
SGD6.48(exc. GST)
SGD0.648/unit
Last RS stock
Vishay 4 F Supercapacitor -20 to 80 % Tolerance, 196 HVC 2.8V dc, Surface
  • RS Stock No. 173-1539
  • Mfr. Part No. MAL219691152E3
Subtotal (50 units, in boxes of 50)
SGD471.00(exc. GST)
SGD9.42/unit
In Stock
TE Connectivity 3522 1.8 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 3 W - 35221R8JT
  • RS Stock No. 164-6168
  • Mfr. Part No. 35221R8JT
Subtotal (2000 units, on reels of 2000)
SGD940.00(exc. GST)
SGD0.47/unit
In Stock
Panasonic ERJPA3 160 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ERJPA3F1600V
  • RS Stock No. 862-6782
  • Mfr. Part No. ERJPA3F1600V
Subtotal (100 units, in bags of 100)
SGD5.20(exc. GST)
SGD0.052/unit
Temporarily out of stock
ROHM ESR25 5.1 kΩ, 1210 Thick Film Resistor ±5 % 0.66 W - ESR25JZPJ512
  • RS Stock No. 263-7691
  • Mfr. Part No. ESR25JZPJ512
Subtotal (4000 units, on reels of 4000)
SGD308.00(exc. GST)
SGD0.077/unit
Temporarily out of stock
Wurth Elektronik 4.5 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 18 A Idc, 4.2 mΩ Rdc, WE-CMBNC
  • RS Stock No. 163-5555
  • Mfr. Part No. 7448051804
Subtotal (24 units, in boxes of 24)
SGD560.016(exc. GST)
SGD23.334/unit
Currently unavailable
Wurth Elektronik WCAP-FTX2 Polypropylene Capacitor PP, 275V ac, 120 nF, Through Hole
  • RS Stock No. 871-2405
  • Mfr. Part No. 890324025020CS
Subtotal (10 units, in bags of 10)
SGD6.52(exc. GST)
SGD0.652/unit
In Stock
Wurth Elektronik 1800 μF Capacitor 63V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 839-7475
  • Mfr. Part No. 860010780027
Subtotal (1 unit)
SGD5.68(exc. GST)
SGD5.68/unit
Temporarily out of stock
Vishay Single Layer Ceramic Capacitor 500 pF 30kV dc -20 to 80 % Y5U Dielectric, 715C, Screw 85 °C Max Op. Temp.
  • RS Stock No. 169-3061
  • Mfr. Part No. 715C30DKT50
Subtotal (25 units, in boxes of 25)
SGD1,773.15(exc. GST)
SGD70.926/unit
Last RS stock
Vishay 1 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-227
  • Mfr. Part No. VJ1206A102JXGTW1HV
Subtotal (2000 units, on reels of 2000)
SGD146.00(exc. GST)
SGD0.073/unit
In Stock
Yageo AC 4.75 kΩ, 0603 Thick Film Resistor ±1 % 0.1 W - AC0603FR-074K75L
  • RS Stock No. 197-8074
  • Mfr. Part No. AC0603FR-074K75L
Subtotal (5000 units, on reels of 5000)
SGD30.00(exc. GST)
SGD0.006/unit
Currently unavailable
Panasonic ECWU(C) Film Capacitor 100 V dc, 1 μF, Surface
  • RS Stock No. 923-0364
  • Mfr. Part No. ECWU1105KCV
Subtotal (1000 units, on reels of 1000)
SGD3,665.00(exc. GST)
SGD3.665/unit
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