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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Passive Components Kits
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Rotary Encoders
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Sounder, Buzzer & Microphone Components
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163871 Products showing for Passive Components

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Vishay 100 Ω Thick Film Resistor 20 W 5 % RTO020F100R0JTE3
  • RS Stock No. 167-8820
  • Mfr. Part No. RTO020F100R0JTE3
Subtotal (1 tube of 50 units)
SGD516.10(exc. GST)
SGD10.322/unit
Temporarily out of stock
TE Connectivity 3520 22 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 1 W - 352022RJT
  • RS Stock No. 161-5284
  • Mfr. Part No. 352022RJT
Subtotal (1 reel of 4000 units)
SGD560.00(exc. GST)
SGD0.14/unit
Temporarily out of stock
TDK 4.7 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 179-5871
  • Mfr. Part No. CEU3E2X7R1H472K080AE
Subtotal (1 reel of 500 units)
SGD29.00(exc. GST)
SGD0.058/unit
In Stock
Vishay MMA0204 100 Ω, 0204 Thin Film Surface Mount Resistor ±1 % 0.25 W - MMA02040C1000FB300
  • RS Stock No. 180-3707
  • Mfr. Part No. MMA02040C1000FB300
Subtotal (1 reel of 500 units)
SGD34.50(exc. GST)
SGD0.069/unit
In Stock
Vishay CRCW 475 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW0805475RFKEA
  • RS Stock No. 169-4695
  • Mfr. Part No. CRCW0805475RFKEA
Subtotal (1 reel of 5000 units)
SGD70.00(exc. GST)
SGD0.014/unit
In Stock
Bourns CR0805 100 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CR0805-FX-1003ELF
  • RS Stock No. 167-5124
  • Mfr. Part No. CR0805-FX-1003ELF
Subtotal (1 reel of 5000 units)
SGD35.00(exc. GST)
SGD0.007/unit
In Stock
TE Connectivity 30 mΩ Wirewound Resistor 3 W 10 % ER74R03KT
  • RS Stock No. 158-547
  • Mfr. Part No. ER74R03KT
Subtotal (1 pack of 5 units)
SGD8.78(exc. GST)
SGD1.756/unit
In Stock
KOA RK73H 1 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - RK73H2BTTD1001F
  • RS Stock No. 123-4363
  • Mfr. Part No. RK73H2BTTD1001F
Subtotal (1 bag of 100 units)
SGD2.90(exc. GST)
SGD0.029/unit
Currently unavailable
Panasonic 330 μF Capacitor 25V dc, Surface - EEEFK1E331GL
  • RS Stock No. 262-1454
  • Mfr. Part No. EEEFK1E331GL
Subtotal (1 tape of 5 units)
SGD6.50(exc. GST)
SGD1.30/unit
Temporarily out of stock
TDK B32654 Film Capacitor 3.3 nF 500V ac 1.6 kV dc, Through Hole 2
  • RS Stock No. 172-5596
  • Mfr. Part No. B32652A1332K000
Subtotal (1 bag of 1000 units)
SGD324.00(exc. GST)
SGD0.324/unit
Temporarily out of stock
Panasonic 10 μF Capacitor 35V dc, Surface Solder - EEEHC1V100R 1000
  • RS Stock No. 727-0900
  • Mfr. Part No. EEEHC1V100R
Subtotal (1 pack of 25 units)
SGD8.00(exc. GST)
SGD0.32/unit
In Stock
Panasonic ERA 3.3 kΩ, 0805 Thin Film Surface Mount Resistor 0.1 % 0.25 W - ERA6VEB3301V
  • RS Stock No. 241-3362
  • Mfr. Part No. ERA6VEB3301V
Subtotal (1 tape of 10 units)
SGD5.12(exc. GST)
SGD0.512/unit
In Stock
Panasonic ERA 17.4 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB1742V
  • RS Stock No. 182-6734
  • Mfr. Part No. ERA3AEB1742V
Subtotal (1 reel of 250 units)
SGD20.25(exc. GST)
SGD0.081/unit
In Stock
Elma 16 ppr Pulse 2 Bit Quadrature Mechanical Rotary Encoder with a 6 mm Slotted Shaft
  • RS Stock No. 241-2358
  • Mfr. Part No. E33-VT6C2-M45T
Subtotal (1 unit)
SGD73.93(exc. GST)
SGD73.93/unit
In Stock
Panasonic ERJPA3 560 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.33 W - ERJPA3F5600V
  • RS Stock No. 172-3475
  • Mfr. Part No. ERJPA3F5600V
Subtotal (1 reel of 5000 units)
SGD130.00(exc. GST)
SGD0.026/unit
In Stock
Wurth Elektronik, WE-HCI, 5040 Shielded Wirewound Surface Mount Inductor with a WE-Perm2 Core, 4.7 μH ±20 % 4.6 A Idc
  • RS Stock No. 863-1075
  • Mfr. Part No. 744316470
Subtotal (1 unit)
SGD3.73(exc. GST)
SGD3.73/unit
In Stock
KYOCERA AVX 2.2 μF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 135-3865
  • Mfr. Part No. 12101C225K4Z2A
Subtotal (1 bag of 20 units)
SGD13.28(exc. GST)
SGD0.664/unit
Last RS stock
TE Connectivity CRG 100 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - CRG0603F100R
  • RS Stock No. 125-1172
  • Mfr. Part No. CRG0603F100R
Subtotal (1 bag of 100 units)
SGD1.10(exc. GST)
SGD0.011/unit
Temporarily out of stock
Arcol Ohmite LVT 0.02 Ω, 1206 Metal Alloy Strip Surface Mount Fixed Resistor 1 % 1 W - LVT12R0200FER
  • RS Stock No. 263-4305
  • Mfr. Part No. LVT12R0200FER
Subtotal (1 reel of 5000 units)
SGD685.00(exc. GST)
SGD0.137/unit
Last RS stock
Vishay CRCW 12 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW120612K0FKEA
  • RS Stock No. 169-4801
  • Mfr. Part No. CRCW120612K0FKEA
Subtotal (1 reel of 5000 units)
SGD110.00(exc. GST)
SGD0.022/unit
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