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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161400 Products showing for Passive Components

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Panasonic ERJ H2G 270 kΩ, 0402 Thick Film Surface Mount Resistor ±5 % 0.1 W - ERJH2GJ274X
  • RS Stock No. 228-4491
  • Mfr. Part No. ERJH2GJ274X
Subtotal (1 tape of 100 units)
SGD6.90(exc. GST)
SGD0.069/unit
In Stock
TDK 4.7 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 111-0362
  • Mfr. Part No. C1608X7S1A475K080AC
Subtotal (1 reel of 4000 units)
SGD252.00(exc. GST)
SGD0.063/unit
In Stock
Wurth Elektronik, WE-PD, 1210 Shielded Wirewound Surface Mount Inductor 82 μH ±20 % 2.75 A Idc
  • RS Stock No. 789-6814
  • Mfr. Part No. 7447709820
Subtotal (1 unit)
SGD5.02(exc. GST)
SGD5.02/unit
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RS PRO Potentiometer Knob 19 mm 6.4 mm, Black
  • RS Stock No. 107-865
Subtotal (1 unit)
SGD5.13(exc. GST)
SGD5.13/unit
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Panasonic 100 μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole - EEUFC1E101S Radial Lead
  • RS Stock No. 449-1040
  • Mfr. Part No. EEUFC1E101S
Subtotal (1 pack of 5 units)
SGD2.25(exc. GST)
SGD0.45/unit
Temporarily out of stock
KEMET C4AQ Polypropylene Capacitor, 5 %, 8 μF 800 V dc, PCB
  • RS Stock No. 207-8952
  • Mfr. Part No. C4AQILW4800A33J
Subtotal (1 unit)
SGD5.30(exc. GST)
SGD5.30/unit
In Stock
RS Better World
Vishay TNPW 100 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - TNPW0402100RBEED
  • RS Stock No. 262-0600
  • Mfr. Part No. TNPW0402100RBEED
Subtotal (1 tape of 10 units)
SGD3.00(exc. GST)
SGD0.30/unit
In Stock
RS PRO 91 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W
  • RS Stock No. 804-8990
Subtotal (1 reel of 5000 units)
SGD25.00(exc. GST)
SGD0.005/unit
In Stock
ROHM MCRS Series 3.3 MΩ, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF3304
  • RS Stock No. 780-325
  • Mfr. Part No. MCR03SEQPF3304
Subtotal (1 tape of 1000 units)
SGD15.00(exc. GST)
SGD0.015/unit
Last RS stock
Vishay 2.2 nF Multilayer Ceramic Capacitor, 200V dc, 10 %, Through Hole Radial
  • RS Stock No. 210-7807
  • Mfr. Part No. K222K15X7RK53H5G
Subtotal (1 pack of 10 units)
SGD5.14(exc. GST)
SGD0.514/unit
Temporarily out of stock
KEMET R53B Film Capacitor, ±10 %, 330 nF 800 V dc 350V ac, Through Hole
  • RS Stock No. 242-3626
  • Mfr. Part No. R53BN33305000K
Subtotal (1 pack of 10 units)
SGD12.24(exc. GST)
SGD1.224/unit
Last RS stock
TE Connectivity 3520 56 Ω, 2512 Thick Film Surface Mount Resistor ±5 % Surface 1 W - 352056RJT
  • RS Stock No. 224-0238
  • Mfr. Part No. 352056RJT
Subtotal (1 pack of 10 units)
SGD1.65(exc. GST)
SGD0.165/unit
In Stock
Vishay ACCRF2EHN Resistor Mounting Bracket, For Use With Models RW, RA, RSO, RSSD, Wirewound Resistors Equipped With AN
  • RS Stock No. 788-5142
  • Mfr. Part No. ACCRF2EHN
Subtotal (1 pack of 2 units)
SGD85.70(exc. GST)
SGD42.85/unit
In Stock
Wurth Elektronik, WE-HCM, 4030 Shielded Surface Mount Inductor with a Ferrite Core, 30 nH ±15 % 27 A Idc
  • RS Stock No. 227-8168
  • Mfr. Part No. 744340300030
Subtotal (1 tape of 5 units)
SGD14.60(exc. GST)
SGD2.92/unit
Currently unavailable
Panasonic ERJ B1 430 Ω, 1020 Thick Film Resistor ±1 % 1 W - ERJB1AF431U
  • RS Stock No. 228-0524
  • Mfr. Part No. ERJB1AF431U
Subtotal (1 reel of 5000 units)
SGD1,935.00(exc. GST)
SGD0.387/unit
In Stock
Abracon 4 MHz Crystal ±50 ppm ABLSG 3-Pin 4.2 mm 11.4 mm 4.7mm
  • RS Stock No. 240-3395
  • Mfr. Part No. ABLSG-4.000MHZ-D2Y-T
Subtotal (1 pack of 25 units)
SGD15.475(exc. GST)
SGD0.619/unit
Last RS stock
TE Connectivity CRGH 10 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.2 W
  • RS Stock No. 807-5364P
  • Mfr. Part No. CRGH0603F10K
Subtotal 100 units (supplied on a continuous strip)
SGD4.00(exc. GST)
SGD0.04/unit
In Stock
Bourns 10 Ω Wirewound Resistor 2 W 5 % FW20A10R0JA
  • RS Stock No. 167-5499
  • Mfr. Part No. FW20A10R0JA
Subtotal (1 box of 1000 units)
SGD211.00(exc. GST)
SGD0.211/unit
Temporarily out of stock
Panasonic ERJUP8 68 Ω, 1206 Thick Film Surface Mount Fixed Resistor ±1 % 0.66 W - ERJUP8F68R0V
  • RS Stock No. 242-6615
  • Mfr. Part No. ERJUP8F68R0V
Subtotal (1 reel of 5000 units)
SGD340.00(exc. GST)
SGD0.068/unit
In Stock
ROHM MCRS Series 120 Ω, 0805 Thick Film Resistor ±1 % Surface 0.25 W - MCR10SEQPF1201
  • RS Stock No. 780-413
  • Mfr. Part No. MCR10SEQPF1201
Subtotal (1 tape of 500 units)
SGD12.50(exc. GST)
SGD0.025/unit
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