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.

Antennas
Antennas
Capacitors
Capacitors
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Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

160462 Products showing for Passive Components

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1568 of 999+
In Stock
Nichicon 100 μF Capacitor 50V dc, Surface Solder
  • RS Stock No. 843-2174P
  • Mfr. Part No. UCM1H101MCL1GS
Subtotal (5 units, supplied on a continuous strip)
SGD3.86(exc. GST)
SGD0.772/unit
In Stock
ROHM MCRS Series 12 Ω, 1206 Thick Film Resistor ±1 % Surface 0.4 W - MCR18SEQPF12R0
  • RS Stock No. 780-460
  • Mfr. Part No. MCR18SEQPF12R0
Subtotal (500 units, on tapes of 500)
SGD15.50(exc. GST)
SGD0.031/unit
Currently unavailable
Wurth Elektronik 330 μF Through Hole Aluminium Polymer Capacitor, 16V dc
  • RS Stock No. 275-9373P
  • Mfr. Part No. 870585374003
Subtotal (1 unit, supplied on a continuous strip)
SGD3.40(exc. GST)
SGD3.40/unit
Currently unavailable
Wurth Elektronik, WE-LQS, 4025 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 47 μH ±20 % 710 mA Idc
  • RS Stock No. 135-4560
  • Mfr. Part No. 74404043470A
Subtotal (3000 units, on reels of 3000)
SGD1,935.00(exc. GST)
SGD0.645/unit
In Stock
Abracon AWSCR-20.00CW-T Ceramic Resonator, 20 MHz 10 pF, 3-Pin Surface Mount 1.2 mm 2mm, 2.5 mm
  • RS Stock No. 240-3626
  • Mfr. Part No. AWSCR-20.00CW-T
Subtotal (5 units, in packs of 5)
SGD3.39(exc. GST)
SGD0.678/unit
In Stock
TE Connectivity THS25R01J, 10 mΩ 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 164-9049
  • Mfr. Part No. THS25R01J
Subtotal (100 units, in boxes of 100)
SGD502.20(exc. GST)
SGD5.022/unit
In Stock
Vishay, IHLP, 2225 Shielded Surface Mount Inductor with a Metal Composite Core, 4.7 μH ±20 % 6.5 A Idc
  • RS Stock No. 223-7286P
  • Mfr. Part No. IHLP2525EZEK4R7M01
Subtotal (5 units, supplied on a continuous strip)
SGD12.85(exc. GST)
SGD2.57/unit
In Stock
ROHM MCRS Series 16 kΩ, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF1602
  • RS Stock No. 780-342
  • Mfr. Part No. MCR03SEQPF1602
Subtotal (1000 units, on tapes of 1000)
SGD15.00(exc. GST)
SGD0.015/unit
Temporarily out of stock
2 mΩ, Surface Trimmer Potentiometer, Gull Wing 0.25 W Top Adjust Nidec Components, ST5
  • RS Stock No. 244-4445
  • Mfr. Part No. ST-5ETW103
Subtotal (500 units, on reels of 500)
SGD2,035.50(exc. GST)
SGD4.071/unit
Currently unavailable
TDK, SLF, 7045 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 220 μH ±20 % 450 mA Idc
  • RS Stock No. 108-4716
  • Mfr. Part No. SLF7045T-221MR33-PF
Subtotal (1000 units, on reels of 1000)
SGD580.00(exc. GST)
SGD0.58/unit
In Stock
Bourns, SRP1038WA, 1038 Shielded Power Inductor with a Metal Alloy Powder Core, 2.2 μH ±20 % 18 A Idc Q:20
  • RS Stock No. 247-6038
  • Mfr. Part No. SRP1038WA-2R2M
Subtotal (1 unit)
SGD2.14(exc. GST)
SGD2.14/unit
Currently unavailable
Panasonic ERJ B2 27 Ω, 0612 Thick Film Resistor ±1 % 0.75 W - ERJB2AF270V
  • RS Stock No. 228-0704
  • Mfr. Part No. ERJB2AF270V
Subtotal (5000 units, on reels of 5000)
SGD1,155.00(exc. GST)
SGD0.231/unit
In Stock
Vishay 4.7 Ω Thick Film Resistor 50 W 5 % RTO050F4R700JTE1
  • RS Stock No. 789-1002
  • Mfr. Part No. RTO050F4R700JTE1
Subtotal (1 unit)
SGD18.01(exc. GST)
SGD18.01/unit
Currently unavailable
Arcol Ohmite TKH 20 Ω, TO-252 Thick Film, Thick Film ±1 % Surface 45 W - TKH45P20R0FE-TR
  • RS Stock No. 210-4686
  • Mfr. Part No. TKH45P20R0FE-TR
Subtotal (5 units, on tapes of 5)
SGD63.32(exc. GST)
SGD12.664/unit
In Stock
KOA 470 kΩ Metal Film Resistor 0.25 W 1 % MFS1/4CC4703F
  • RS Stock No. 491-2092
  • Mfr. Part No. MFS1/4CC4703F
Subtotal (20 units, in packs of 20)
SGD5.42(exc. GST)
SGD0.271/unit
In Stock
Arcol Ohmite HS25 100R F, 100 Ω 25 W Aluminium Chassis Mount Resistor ±1 %
  • RS Stock No. 162-3394
  • Mfr. Part No. HS25 100R F
Subtotal (25 units, in bags of 25)
SGD122.50(exc. GST)
SGD4.90/unit
In Stock
Bourns, MLC Varistor 0.5 pF, Clamping 30 V, Varistor 250 V, 0603
  • RS Stock No. 690-9938P
  • Mfr. Part No. CG0603MLC-05LE
Subtotal (25 units, supplied on a continuous strip)
SGD5.825(exc. GST)
SGD0.233/unit
Temporarily out of stock
Vishay 10 μF MnO2 Tantalum Capacitor 20V dc, Surface, TR3 Series
  • RS Stock No. 173-1320
  • Mfr. Part No. TR3C106K020C0500
Subtotal (500 units, on reels of 500)
SGD334.50(exc. GST)
SGD0.669/unit
In Stock
Yageo RC_L 10 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.2 W
  • RS Stock No. 199-5443P
  • Mfr. Part No. RC0603FR-0710KL
Subtotal (100 units, supplied on a continuous strip)
SGD0.90(exc. GST)
SGD0.009/unit
Currently unavailable
Vishay, 0612 Thin Film ± 0.5, ± 1 % 1 W - MCW0612MC2000FP100
  • RS Stock No. 205-6937P
  • Mfr. Part No. MCW0612MC2000FP100
Subtotal (10 units, supplied on a continuous strip)
SGD4.21(exc. GST)
SGD0.421/unit
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