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
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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163451 Products showing for Passive Components

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Bourns CRF1206 3 mΩ, 1206 Metal Strip Resistor ±1 % 1 W
  • RS Stock No. 255-0083P
  • Mfr. Part No. CRF1206-FZ-R003ELF
Subtotal 10 units (supplied on a continuous strip)
SGD5.84(exc. GST)
SGD0.584/unit
In Stock
RS PRO 470 kΩ, 0603 Thin Film Resistor 0.5 % 0.15 W
  • RS Stock No. 243-0625P
Subtotal 50 units (supplied on a continuous strip)
SGD7.75(exc. GST)
SGD0.155/unit
Temporarily out of stock
TE Connectivity NEOHM SMA-Q 22.1 kΩ, 0207 Thin Film Surface Mount Resistor 1 % Surface 1 W - SMA-Q0207FTDT22K1
  • RS Stock No. 590-176
  • Mfr. Part No. SMA-Q0207FTDT22K1
Subtotal (1 reel of 2000 units)
SGD432.00(exc. GST)
SGD0.216/unit
Currently unavailable
Vishay, 5.6 Ω 50 W Thick Film Chassis Mount Resistor ±5 %
  • RS Stock No. 789-0724P
  • Mfr. Part No. RCH50S5R600JS06
Subtotal 1 unit (supplied in a bag)
SGD24.79(exc. GST)
SGD24.79/unit
In Stock
Broadcom 5V dc 500 ppr Pulse Optical Encoder with a 6 mm Hollow Shaft, Screw, Pin
  • RS Stock No. 334-863
  • Mfr. Part No. HEDS-5600#A13
Subtotal (1 bag of 1 unit)
SGD95.17(exc. GST)
SGD95.17/bag
In Stock
Murata, BNX02, EMI Filter, 16V dc 1GHz, 15 A, Surface, Solder 3.5 mm 12.1 mm, 9.1 mm
  • RS Stock No. 878-7932
  • Mfr. Part No. BNX028-01L
Subtotal (1 unit)
SGD7.11(exc. GST)
SGD7.11/unit
Temporarily out of stock
KEMET C4AF Film Capacitor, 10 %, 18.5 μF 350 V dc 350V ac, Through Hole
  • RS Stock No. 258-4227
  • Mfr. Part No. C4AF7BW5185F3MK
Subtotal (1 box of 27 units)
SGD352.89(exc. GST)
SGD13.07/unit
Temporarily out of stock
Panasonic 22 μF Aluminium Electrolytic Capacitor 25V dc, Surface Solder - EEEFK1E220R 1000
  • RS Stock No. 708-3403
  • Mfr. Part No. EEEFK1E220R
Subtotal (1 pack of 25 units)
SGD8.425(exc. GST)
SGD0.337/unit
In Stock
Vishay 10 μF Tantalum Tantalum Capacitor 25V dc, Surface, 293D Series
  • RS Stock No. 252-5170P
  • Mfr. Part No. 293D106X0025D2TE3
Subtotal 10 units (supplied on a continuous strip)
SGD10.43(exc. GST)
SGD1.043/unit
In Stock
KEMET 15000 μF Capacitor 25V dc, Screw - ALS30A153DA025
  • RS Stock No. 381-8977
  • Mfr. Part No. ALS30A153DA025
Subtotal (1 unit)
SGD28.96(exc. GST)
SGD28.96/unit
Temporarily out of stock
Panasonic ERJPC6 2370 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6B2371V
  • RS Stock No. 789-862
  • Mfr. Part No. ERJPC6B2371V
Subtotal (1 tape of 10 units)
SGD1.08(exc. GST)
SGD0.108/unit
Currently unavailable
TE Connectivity 680 Ω Wirewound Resistor 7 W 5 ER58680RJT
  • RS Stock No. 199-6542
  • Mfr. Part No. ER58680RJT
Subtotal (1 pack of 5 units)
SGD8.43(exc. GST)
SGD1.686/unit
Temporarily out of stock
Panasonic ERA 21.5 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB2152V
  • RS Stock No. 106-8961
  • Mfr. Part No. ERA3AEB2152V
Subtotal (1 reel of 5000 units)
SGD305.00(exc. GST)
SGD0.061/unit
In Stock
Vishay CRCW 0 mΩ, 0805 Thick Film Surface Mount Resistor ±0 % Surface 0.5 W
  • RS Stock No. 812-3353P
  • Mfr. Part No. CRCW08050000Z0EAHP
Subtotal 25 units (supplied on a continuous strip)
SGD1.875(exc. GST)
SGD0.075/unit
In Stock
ECS Inc International, 16MHz XO Oscillator, ±100 ppm HCMOS, 4-Pin Surface Mount ECS-3961-160-AU-TR
  • RS Stock No. 301-116
  • Mfr. Part No. ECS-3961-160-AU-TR
Subtotal (1 unit)
SGD3.12(exc. GST)
SGD3.12/unit
New product - Preorder today
Murata Ceramic Single Layer Capacitor 2.2 nF 250V ±20%, DE1, PCB 125 °C Max Op. Temp.
  • RS Stock No. 887-028
  • Mfr. Part No. DE1E3KX222MA4BN01F
Subtotal (1 unit)
SGD1.03(exc. GST)
SGD1.03/unit
In Stock
Nichicon 120 μF Capacitor 400V dc, Through Hole - UCP2G121MHD Radial Lead
  • RS Stock No. 851-4116
  • Mfr. Part No. UCP2G121MHD
Subtotal (1 unit)
SGD6.05(exc. GST)
SGD6.05/unit
In Stock
Bourns CR0805 1 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W
  • RS Stock No. 740-8971P
  • Mfr. Part No. CR0805-FX-1001ELF
Subtotal 50 units (supplied on a continuous strip)
SGD1.20(exc. GST)
SGD0.024/unit
In Stock
RS PRO 10.7 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W
  • RS Stock No. 717-0982
Subtotal (1 reel of 5000 units)
SGD25.00(exc. GST)
SGD0.005/unit
Currently unavailable
VPG Foil Resistors 20 kΩ Metal Foil Resistor 0.6 W 0.01 %
  • RS Stock No. 173-2975
  • Mfr. Part No. Y078520K0000T9L
Subtotal (1 box of 100 units)
SGD3,198.70(exc. GST)
SGD31.987/unit
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