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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Fixed Resistors
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Inductors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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159664 Products showing for Passive Components

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TE Connectivity 68 Ω Metal Oxide Resistor 3 W 5 % ROX3SJ68R
  • RS Stock No. 161-6110
  • Mfr. Part No. ROX3SJ68R
Subtotal (1000 units, in boxes of 1000)
SGD172.00(exc. GST)
SGD0.172/unit
In Stock
TDK, Standard Metal Oxide Varistor 11.1 nF 20 A, Clamping 77 V, Varistor 39 V
  • RS Stock No. 289-7575
  • Mfr. Part No. B72220S0250K101
Subtotal (5 units, in packs of 5)
SGD5.31(exc. GST)
SGD1.062/unit
Temporarily out of stock
Panasonic ERJPC3 6.65 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B6651V
  • RS Stock No. 789-699
  • Mfr. Part No. ERJPC3B6651V
Subtotal (10 units, on tapes of 10)
SGD0.82(exc. GST)
SGD0.082/unit
Temporarily out of stock
Wurth Elektronik 100 μF Capacitor 16V dc, Surface Solder - 865250353008
  • RS Stock No. 163-6433
  • Mfr. Part No. 865250353008
Subtotal (500 units, on reels of 500)
SGD450.00(exc. GST)
SGD0.90/unit
Temporarily out of stock
Wurth Elektronik, WE-HCI, 1365 Shielded Wirewound Surface Mount Inductor with a WE-Perm Core, 470 nH Flat Wire Winding
  • RS Stock No. 736-2037
  • Mfr. Part No. 744355147
Subtotal (1 unit)
SGD4.77(exc. GST)
SGD4.77/unit
Temporarily out of stock
Qnity Laird Ferrite Bead Solid Cylindrical Core 14.7 mm, For: EMI Suppression 5.44 mm ID 14.71 mm OD
  • RS Stock No. 888-633
  • Mfr. Part No. 28A0434-0A2
Subtotal (1 unit)
SGD2.68(exc. GST)
SGD2.68/unit
In Stock
Vishay F1772 Film Capacitor 150 nF 310V ac 310 V dc, Through Hole
  • RS Stock No. 148-446P
  • Mfr. Part No. F17724152260
Subtotal (10 units, supplied in a bag)
SGD58.00(exc. GST)
SGD5.80/unit
Currently unavailable
Panasonic, V Surge Absorber 300 pF 25 A, Clamping 40 V, Varistor 360 V
  • RS Stock No. 110-1920
  • Mfr. Part No. ERZV10D361
Subtotal (1000 units, in bags of 1000)
SGD310.00(exc. GST)
SGD0.31/unit
Currently unavailable
TE Connectivity CPF 39.2 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B39K2E1
  • RS Stock No. 164-1133
  • Mfr. Part No. CPF0402B39K2E1
Subtotal (1000 units, on reels of 1000)
SGD219.00(exc. GST)
SGD0.219/unit
In Stock
KOA 360 Ω Metal Film Resistor 0.25 W 1 % MFS1/4CC3600F
  • RS Stock No. 491-1263
  • Mfr. Part No. MFS1/4CC3600F
Subtotal (20 units, in packs of 20)
SGD5.58(exc. GST)
SGD0.279/unit
In Stock
TE Connectivity SMQ 0.68 Ω Wirewound Surface Mount Resistor 5 % Surface 3 W - SMQW3R68JT
  • RS Stock No. 286-7655
  • Mfr. Part No. SMQW3R68JT
Subtotal (5 units, in packs of 5)
SGD11.02(exc. GST)
SGD2.204/unit
Last RS stock
Vishay WSL.18 High Power 10 mΩ, 2010 Metal Strip Surface Mount Resistor ±1 % 1 W - WSL2010R0100FEA18
  • RS Stock No. 169-3187
  • Mfr. Part No. WSL2010R0100FEA18
Subtotal (4000 units, on reels of 4000)
SGD2,396.00(exc. GST)
SGD0.599/unit
In Stock
Vishay CRCW 2.21 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW08052K21FKEA
  • RS Stock No. 182-5431
  • Mfr. Part No. CRCW08052K21FKEA
Subtotal (1000 units, on reels of 1000)
SGD18.00(exc. GST)
SGD0.018/unit
Temporarily out of stock
Panasonic ERJ 820 Ω, 0402 Thick Film Surface Mount Resistor ±0.5 % 0.06 W - ERJ2RHD8200X
  • RS Stock No. 168-9325
  • Mfr. Part No. ERJ2RHD8200X
Subtotal (10000 units, on reels of 10000)
SGD240.00(exc. GST)
SGD0.024/unit
Last RS stock
Nichicon 47 μF Capacitor 35V dc, Surface Solder
  • RS Stock No. 243-7236P
  • Mfr. Part No. UCJ1V470MCL1GS
Subtotal (10 units, supplied on a continuous strip)
SGD5.85(exc. GST)
SGD0.585/unit
Temporarily out of stock
Yageo RC_L 51 kΩ, 0402 Thick Film Surface Mount Resistor ±5 % 0.06 W - RC0402JR-0751KL
  • RS Stock No. 198-7987
  • Mfr. Part No. RC0402JR-0751KL
Subtotal (10000 units, on reels of 10000)
SGD30.00(exc. GST)
SGD0.003/unit
Currently unavailable
IQD 16 MHz Crystal Unit ±30 ppm 2-Pin
  • RS Stock No. 212-0596
  • Mfr. Part No. LFXTAL058383Bulk
Subtotal (10 units, in packs of 10)
SGD5.20(exc. GST)
SGD0.52/unit
Temporarily out of stock
Wurth Elektronik 330 μH Leaded Inductor, 0.7 Ω Rdc
  • RS Stock No. 486-064
  • Mfr. Part No. 768772331
Subtotal (1 unit)
SGD19.66(exc. GST)
SGD19.66/unit
Temporarily out of stock
Elma Potentiometer Knob 19 mm, K1-PR-S60 6 mm, Silver
  • RS Stock No. 243-9611
  • Mfr. Part No. K1-PR-S60
Subtotal (40 units, in boxes of 40)
SGD904.32(exc. GST)
SGD22.608/unit
In Stock
Panasonic ERJPA3 560 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ERJPA3F5603V
  • RS Stock No. 172-4649
  • Mfr. Part No. ERJPA3F5603V
Subtotal (5000 units, on reels of 5000)
SGD130.00(exc. GST)
SGD0.026/unit
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