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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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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160770 Products showing for Passive Components

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Bourns 53 50 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 522-5080P
  • Mfr. Part No. 53RAA-R25-A18L
Subtotal 1 unit (supplied in a bag)
SGD15.95(exc. GST)
SGD15.95/unit
In Stock
Panasonic ERJUP3 180 Ω, 0603 Surface Mount Resistor ±1 % 0.25 W - ERJUP3F1800V
  • RS Stock No. 243-2131P
  • Mfr. Part No. ERJUP3F1800V
Subtotal 100 units (supplied on a continuous strip)
SGD8.90(exc. GST)
SGD0.089/unit
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Murata 10 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 723-4954
  • Mfr. Part No. GCM155R71H103KA55D
Subtotal (1 pack of 200 units)
SGD2.40(exc. GST)
SGD0.012/unit
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Arcol Ohmite FC4L 10 mΩ, 2512 Metal Foil Surface Mount Resistor ±1 % 2 W - FC4L64R010FER
  • RS Stock No. 126-0366
  • Mfr. Part No. FC4L64R010FER
Subtotal (1 bag of 5 units)
SGD11.34(exc. GST)
SGD2.268/unit
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Arcol HS25 R47 J, 470 mΩ 25 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 157-516
  • Mfr. Part No. HS25 R47 J
Subtotal (1 unit)
SGD8.26(exc. GST)
SGD8.26/unit
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TE Connectivity 680 Ω Metal Oxide Resistor 1 W 5 % ROX1SJ680R
  • RS Stock No. 214-1119
  • Mfr. Part No. ROX1SJ680R
Subtotal (1 pack of 10 units)
SGD1.64(exc. GST)
SGD0.164/unit
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Yageo 10 kΩ Metal Film Metal Film Fixed Resistor 0.5 W 1 %
  • RS Stock No. 199-7530
  • Mfr. Part No. MFR50SFTE52-10K
Subtotal (1 box of 5000 units)
SGD120.00(exc. GST)
SGD0.024/unit
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RS PRO 7.4 Ω 0.7 W Miniature Speaker 2.5 mm
  • RS Stock No. 117-6048
Subtotal (1 unit)
SGD3.64(exc. GST)
SGD3.64/unit
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Yageo RC 470 Ω, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 125 mW - RC0805FR-07470RL
  • RS Stock No. 242-7007
  • Mfr. Part No. RC0805FR-07470RL
Subtotal (1 reel of 5000 units)
SGD35.00(exc. GST)
SGD0.007/unit
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KEMET 22 μF Surface Polymer Capacitor, 25V dc
  • RS Stock No. 187-7350P
  • Mfr. Part No. T521B226M025ATE100
Subtotal 5 units (supplied on a continuous strip)
SGD8.50(exc. GST)
SGD1.70/unit
Temporarily out of stock
Panasonic ERJUP3 270 Ω, 0603 Surface Mount Resistor ±1 % 0.25 W - ERJUP3F2700V
  • RS Stock No. 243-2151
  • Mfr. Part No. ERJUP3F2700V
Subtotal (1 reel of 5000 units)
SGD255.00(exc. GST)
SGD0.051/unit
Currently unavailable
Murata, LQP, 0201 Unshielded Surface Mount Inductor with a Non-Magnetic Core Core, 600 pH Film ±0.1 nH 850 mA Idc Q:14
  • RS Stock No. 187-3472
  • Mfr. Part No. LQP03TN0N6B02D
Subtotal (1 reel of 15000 units)
SGD315.00(exc. GST)
SGD0.021/unit
In Stock
Abracon 32.768 kHz Crystal Unit ±30 ppm Surface Mount 4-Pin 2.5 mm 8 mm 3.8mm
  • RS Stock No. 171-2725P
  • Mfr. Part No. ABS25-32.768KHZ-4-T
Subtotal 10 units (supplied on a continuous strip)
SGD13.96(exc. GST)
SGD1.396/unit
In Stock
TE Connectivity TE200B470RJ, 470 Ω 200 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 701-5728
  • Mfr. Part No. TE200B470RJ
Subtotal (1 unit)
SGD65.18(exc. GST)
SGD65.18/unit
In Stock
Bourns CR0402 10 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CR0402-FX-1002GLF
  • RS Stock No. 167-5187
  • Mfr. Part No. CR0402-FX-1002GLF
Subtotal (1 reel of 10000 units)
SGD20.00(exc. GST)
SGD0.002/unit
In Stock
Bourns 4.7 mH 0.2 A Common Mode Choke 0.7 Ω 42V ac/dc, 80 V ac/dc
  • RS Stock No. 874-9706
  • Mfr. Part No. DR331-475BE
Subtotal (1 bag of 5 units)
SGD6.70(exc. GST)
SGD1.34/unit
Last RS stock
Rubycon 220 μF Capacitor 450V dc, Through Hole - 450CXW220MEFC18X50 Radial Lead
  • RS Stock No. 767-2832P
  • Mfr. Part No. 450CXW220MEFC18X50
Subtotal 1 unit (supplied in a bag)
SGD16.33(exc. GST)
SGD16.33/unit
Currently unavailable
Wurth Elektronik, WE-GFH, 3225 Unshielded Surface Mount Inductor with a Powdered Iron Core, 47 μH Moulded ±10 % 250 mA
  • RS Stock No. 899-7195
  • Mfr. Part No. 7447649147
Subtotal (1 bag of 10 units)
SGD5.60(exc. GST)
SGD0.56/unit
In Stock
Bourns PWR2010 5 Ω, 2010 Wirewound Surface Mount Resistor ±5 % 0.5 W - PWR2010W5R00JE
  • RS Stock No. 820-0093
  • Mfr. Part No. PWR2010W5R00JE
Subtotal (1 unit)
SGD1.82(exc. GST)
SGD1.82/unit
In Stock
Vishay CRCW 18.2 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW060318K2FKEA
  • RS Stock No. 678-9866
  • Mfr. Part No. CRCW060318K2FKEA
Subtotal (1 pack of 50 units)
SGD1.35(exc. GST)
SGD0.027/unit
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