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
Passive Components Kits
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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Variable Resistors

163673 Products showing for Passive Components

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313 / 999+
In Stock
Wurth Elektronik, WE-KI Power Inductor 30 nH 5 % Q:57
  • RS Stock No. 485-429P
  • Mfr. Part No. 744761130A
Subtotal (20 units, supplied on a continuous strip)
MYR31.24
MYR1.562/unit
In Stock
Yageo RT 8.66 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD078K66L
  • RS Stock No. 199-1629P
  • Mfr. Part No. RT0603BRD078K66L
Subtotal (10 units, supplied on a continuous strip)
MYR4.23
MYR0.423/unit
Temporarily out of stock
Panasonic ERA 1.18 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - ERA6AEB1181V
  • RS Stock No. 708-6143P
  • Mfr. Part No. ERA6AEB1181V
Subtotal (5 units, supplied on a continuous strip)
MYR2.69
MYR0.538/unit
Last RS stock
Vishay WSL 50 mΩ, 2512 Metal Strip Surface Mount Resistor ±1 % Surface 1 W
  • RS Stock No. 683-6571P
  • Mfr. Part No. WSL2512R0500FEA
Subtotal (5 units, supplied on a continuous strip)
MYR11.05
MYR2.21/unit
Currently unavailable
TE Connectivity CPF 750 Ω, 0603 Thin Film ±0.1 % 0.06 W - CPF0603B750RE
  • RS Stock No. 666-2027P
  • Mfr. Part No. CPF0603B750RE
Subtotal (5 units, supplied on a continuous strip)
MYR7.43
MYR1.486/unit
Temporarily out of stock
Bourns, SRR7045, 7045 Shielded Surface Mount Inductor with a Ferrite DR & RI Core, 1 mH ±20 % 250 mA Idc Q:90
  • RS Stock No. 246-3320
  • Mfr. Part No. SRR7045-102M
Subtotal (1000 units, on reels of 1000)
MYR1,610.00
MYR1.61/unit
Currently unavailable
TDK, NLV-PF, 1210 (3225M) Wire-wound SMD Inductor with a Ferrite Core, 470 nH ±5% Wire-Wound 450mA Idc Q:30
  • RS Stock No. 548-3135P
  • Mfr. Part No. NLV32T-R47J-PF
Subtotal (25 units, supplied on a continuous strip)
MYR19.10
MYR0.764/unit
Temporarily out of stock
Murata 10 μF Multilayer Ceramic Capacitor, 10V dc, 15 %, Surface
  • RS Stock No. 260-8765
  • Mfr. Part No. GRM155R61A106ME11D
Subtotal (100 units, on tapes of 100)
MYR15.20
MYR0.152/unit
In Stock
TE Connectivity, Corcom SB 10 A 250V ac 50Hz, 60 Hz, Flange RFI Filter, Fast-On 1 Phase
  • RS Stock No. 161-4610
  • Mfr. Part No. 1-1609034-5
Subtotal (9 units, in bags of 9)
MYR1,011.051
MYR112.339/unit
Currently unavailable
ROHM, EQP Thick Film Resistor ±1 % 0.5 W - MCR10LEQPFLR330
  • RS Stock No. 259-5406P
  • Mfr. Part No. MCR10LEQPFLR330
Subtotal (10 units, supplied on a continuous strip)
MYR13.30
MYR1.33/unit
In Stock
TE Connectivity, 3627, 3627 Unshielded Surface Mount Inductor with a Ferrite Core, 150 μH 10 % 130 mA Idc
  • RS Stock No. 171-327P
  • Mfr. Part No. 3627453226151K
Subtotal (20 units, supplied on a continuous strip)
MYR66.70
MYR3.335/unit
In Stock
Roxburgh EMC, RES10 16 A 250V ac 400Hz, Chassis Mount RFI Filter, Fast-On 1 Phase
  • RS Stock No. 806-8253
  • Mfr. Part No. RES10F16-M
Subtotal (1 unit)
MYR174.58
MYR174.58/unit
In Stock
Panasonic 10 μF Aluminium Electrolytic Capacitor 25V, Surface - EEEFN1E100R SMD
  • RS Stock No. 781-669
  • Mfr. Part No. EEEFN1E100R
Subtotal (5 units, on tapes of 5)
MYR4.24
MYR0.848/unit
In Stock
Panasonic Precision Thick Film Chip Resistors 51 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W
  • RS Stock No. 277-917P
  • Mfr. Part No. ERJ2RKF51R0X
Subtotal (10 units, supplied on a continuous strip)
MYR0.45
MYR0.045/unit
In Stock
Euroquartz 14.7456 MHz Crystal ±30 ppm HC-49 2-Pin 3.5 mm 10.77 mm 4.34mm
  • RS Stock No. 693-8816P
  • Mfr. Part No. 14.7456MHz HC49/4H/30/50/-40+85/18pF/ATF
Subtotal (1 unit, supplied on a continuous strip)
MYR2.18
MYR2.18/unit
Last RS stock
TE Connectivity CRGS 150 Ω, 0805 Thick Film Surface Mount Resistor ±5 % 0.5 W
  • RS Stock No. 905-9613P
  • Mfr. Part No. CRGS0805J150R
Subtotal (100 units, supplied on a continuous strip)
MYR49.90
MYR0.499/unit
In Stock
Nichicon 4700 μF Capacitor 450V dc, Screw - LNC2W472MSEG
  • RS Stock No. 187-2411
  • Mfr. Part No. LNC2W472MSEG
Subtotal (1 unit)
MYR576.40
MYR576.40/unit
New product - Preorder today
Murata 1.8 pF Multilayer Ceramic Capacitor, 50V dc, 0.25 pF, Surface Mount
  • RS Stock No. 886-965
  • Mfr. Part No. GRM1555C1H1R8CA01D
Subtotal (10000 units, on reels of 10000)
MYR280.00
MYR0.028/unit
Currently unavailable
TE Connectivity CPF 510 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B510RE1
  • RS Stock No. 701-4813P
  • Mfr. Part No. CPF0402B510RE1
Subtotal (10 units, supplied on a continuous strip)
MYR13.52
MYR1.352/unit
Temporarily out of stock
Bourns, SRP7028A, 7028 Shielded Surface Mount Inductor with a Carbonyl Powder Core, 560 nH ±20 % 16.5 A Idc Q:15
  • RS Stock No. 172-8586
  • Mfr. Part No. SRP7028A-R56M
Subtotal (1000 units, on reels of 1000)
MYR2,974.00
MYR2.974/unit
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