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
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
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Surge Protection Components
Variable Resistors
Variable Resistors

163703 Products showing for Passive Components

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353 / 999+
Limited stock
Panasonic ERA2A 2200 Ω, Tape & Reel Resistive Fixed Resistor ±0.25 % Surface 0.06 W - ERA2ARC222X
  • RS Stock No. 782-899P
  • Mfr. Part No. ERA2ARC222X
Subtotal (10 units, supplied as a tape)
MYR12.45
MYR1.245/unit
In Stock
ROHM MCRS Series 4.7 MΩ, 0603 Thick Film Resistor ±1 % Surface 0.13 W - MCR03SEQPF4704
  • RS Stock No. 780-314P
  • Mfr. Part No. MCR03SEQPF4704
Subtotal (1000 units, supplied on a reel)
MYR50.00
MYR0.05/unit
In Stock
Panasonic, PCC-M0754M Shielded Surface Mount Inductor with a Metal Composite Core, 22 μH ±20 % 3.7 A Idc
  • RS Stock No. 548-706P
  • Mfr. Part No. ETQP5M220YFM
Subtotal (5 units, supplied on a continuous strip)
MYR25.16
MYR5.032/unit
In Stock
TE Connectivity 250 Ω Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 807-3734P
  • Mfr. Part No. UPF25B250RV
Subtotal (1 unit, supplied on a continuous strip)
MYR25.58
MYR25.58/unit
In Stock
Panasonic E24 9111 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.1 % Surface 0.06 W - ERA2AEB911X
  • RS Stock No. 782-615P
  • Mfr. Part No. ERA2AEB911X
Subtotal (10 units, supplied on a continuous strip)
MYR2.25
MYR0.225/unit
Temporarily out of stock
TE Connectivity CPF 33 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.1 W
  • RS Stock No. 666-2639P
  • Mfr. Part No. CPF0805B33KE
Subtotal (5 units, supplied on a continuous strip)
MYR7.71
MYR1.542/unit
Temporarily out of stock
Wurth Elektronik, WE-PD, 1030 Shielded Wirewound Surface Mount Inductor 330 μH ±20 % 480 mA Idc
  • RS Stock No. 789-6918P
  • Mfr. Part No. 7447713331
Subtotal (1 unit, supplied on a continuous strip)
MYR9.21
MYR9.21/unit
In Stock
Wurth Elektronik, WE-CAIR Unshielded Power Inductor with a Ferrite Core, 3.85 nH 10 % 1.6 mA Idc
  • RS Stock No. 486-944P
  • Mfr. Part No. 744910038
Subtotal (2 units, supplied on a continuous strip)
MYR45.15
MYR22.575/unit
Temporarily out of stock
Panasonic ERJ 22 kΩ, 0805 Thick Film Surface Mount Resistor ±0.5 % 0.1 W
  • RS Stock No. 810-1754P
  • Mfr. Part No. ERJ6RBD2202V
Subtotal (100 units, supplied on a continuous strip)
MYR24.40
MYR0.244/unit
In Stock
ROHM MCRS Series 91 kΩ, 0402 Thick Film Resistor ±1 % Surface 0.1 W - MCR01SMQPF9102
  • RS Stock No. 780-538P
  • Mfr. Part No. MCR01SMQPF9102
Subtotal (1000 units, supplied on a reel)
MYR50.00
MYR0.05/unit
In Stock
Murata, DFE322512F, 1210 Shielded Surface Mount Inductor with a Metal Alloy Core, 330 nH ±20 % 8.5 A Idc
  • RS Stock No. 240-8492P
  • Mfr. Part No. DFE322512F-R33M=P2
Subtotal (10 units, supplied on a continuous strip)
MYR21.23
MYR2.123/unit
In Stock
Panasonic ERJ H3G 1.2 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.13 W - ERJH3GJ122V
  • RS Stock No. 228-4788P
  • Mfr. Part No. ERJH3GJ122V
Subtotal (100 units, supplied on a continuous strip)
MYR19.40
MYR0.194/unit
In Stock
Arcol Ohmite HS300 1R J, 1 Ω 300 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 136-272
  • Mfr. Part No. HS300 1R J
Subtotal (1 unit)
MYR202.25
MYR202.25/unit
In Stock
Yageo PE_L 18 mΩ, 2512 Current Sensing Surface Mount Resistor ±1 % 1 W - PE2512FKM070R018L
  • RS Stock No. 199-5906P
  • Mfr. Part No. PE2512FKM070R018L
Subtotal (10 units, supplied on a continuous strip)
MYR19.99
MYR1.999/unit
Last RS stock
TE Connectivity CPF 130 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W
  • RS Stock No. 666-2689P
  • Mfr. Part No. CPF0805B130KE
Subtotal (5 units, supplied on a continuous strip)
MYR6.19
MYR1.238/unit
Last RS stock
TE Connectivity, 470 Ω 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 720-5114P
  • Mfr. Part No. HSA25470RJ
Subtotal (1 unit, supplied in a box)
MYR27.11
MYR27.11/unit
Limited stock
Sonitron Piezoelectric Miniature Speaker, 1160 nF 20 kHz 60 V Pk-Pk
  • RS Stock No. 786-8948
  • Mfr. Part No. SPS-68-T00
Subtotal (1 unit)
MYR161.26
MYR161.26/unit
In Stock
ROHM MCRS Series 39 Ω, 0805 Thick Film Resistor ±1 % Surface 0.25 W - MCR10SEQPF39R0
  • RS Stock No. 780-704P
  • Mfr. Part No. MCR10SEQPF39R0
Subtotal (500 units, supplied on a reel)
MYR42.00
MYR0.084/unit
In Stock
TDK, B82462-G4 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 100 μH ±20 % 1.05 A Idc
  • RS Stock No. 496-0669P
  • Mfr. Part No. B82464G4104M000
Subtotal (1 unit, supplied on a continuous strip)
MYR5.93
MYR5.93/unit
In Stock
Wurth Elektronik, 7447, 1280 Shielded Inductor with a Ferrite Core, 3.3 μH Surface Mount ±30% 12.8 A Idc
  • RS Stock No. 758-285P
  • Mfr. Part No. 7447707033
Subtotal (5 units, supplied on a continuous strip)
MYR60.31
MYR12.062/unit
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