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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EMI Filters & Protection
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Passive Components Kits
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159958 Products showing for Passive Components

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Wurth Elektronik, WE-LQSA, 0804 Shielded Power Inductor with a Manganese Zinc, Nickel Zinc Core, 22 μH Semi Shielded ±20
  • RS Stock No. 259-1130P
  • Mfr. Part No. 78404084220
Subtotal (1 unit, supplied on a continuous strip)
MYR6.86
MYR6.86/unit
Last RS stock
Same Sky 80 dB Surface Buzzer Internal Magnetic Buzzer 5 mm 4 V dc Min 9.6 mm 7V dc Max
  • RS Stock No. 259-6217P
  • Mfr. Part No. CMI-9655S-SMT-TR
Subtotal (1 unit, supplied on a continuous strip)
MYR19.53
MYR19.53/unit
Currently unavailable
Same Sky 80 dB Through Hole Buzzer Internal Magnetic Buzzer 7.5 mm 12 V dc Min 13.8 mm 7.5mm 16V dc Max
  • RS Stock No. 259-6284P
  • Mfr. Part No. CPI-1375IC-80T
Subtotal (5 units, supplied in a box)
MYR38.10
MYR7.62/unit
In Stock
UVOX FOF-1018-AC Shielding Strip of Nickel, Copper Layered Metallised Fibre, Polyurethane Foam With Self-Adhesive 1 m x
  • RS Stock No. 264-9483
  • Mfr. Part No. FOF-1018-AC
Subtotal (5 units, in packs of 5)
MYR275.54
MYR55.108/unit
In Stock
ROHM ESR03 3.3 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 263-0983P
  • Mfr. Part No. ESR03EZPF3R30
Subtotal (100 units, supplied on a continuous strip)
MYR18.10
MYR0.181/unit
In Stock
Panasonic ERJ 2RK 2.2 mΩ, 0402 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.1 W - ERJ2RKF1501X
  • RS Stock No. 287-593
  • Mfr. Part No. ERJ2RKF1501X
Subtotal (10 units, in bags of 10)
MYR0.45
MYR0.045/unit
In Stock
RS PRO 28 mm Knob Diameter Black, Grey Potentiometer Knob for 6.4 mm Shaft Circular
  • RS Stock No. 259-7017
Subtotal (5 units, in packs of 5)
MYR60.16
MYR12.032/unit
In Stock
Wurth Elektronik, WE-TPC Shielded Power Inductor 0.47 μH
  • RS Stock No. 486-105
  • Mfr. Part No. 74402800047
Subtotal (1 unit)
MYR56.61
MYR56.61/unit
In Stock
Panasonic 47 μF Capacitor 16V dc, Surface Solder 1000
  • RS Stock No. 565-768P
  • Mfr. Part No. EEEFKC470UAR
Subtotal (5 units, supplied as a tape)
MYR8.58
MYR1.716/unit
Currently unavailable
Panasonic 820 μF Capacitor 25V dc, Surface - EEEFN1E821UL
  • RS Stock No. 262-4914
  • Mfr. Part No. EEEFN1E821UL
Subtotal (500 units, on reels of 500)
MYR1,134.50
MYR2.269/unit
In Stock
Panasonic 680 μF Capacitor 6.3V dc, Surface
  • RS Stock No. 262-4865P
  • Mfr. Part No. EEEFN0J681L
Subtotal (10 units, supplied on a continuous strip)
MYR24.01
MYR2.401/unit
Stocked by manufacturer
Phoenix Contact, VAL-SPP Surge Arrester 440V dc Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 488-281
  • Mfr. Part No. 1466646
Subtotal (1 unit)
MYR1,800.94
MYR1,800.94/unit
Currently unavailable
ROHM ESR03 27 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 263-0897P
  • Mfr. Part No. ESR03EZPF2702
Subtotal (100 units, supplied on a continuous strip)
MYR14.90
MYR0.149/unit
Temporarily out of stock
TE Connectivity, Sigma 3656, 0650 Shielded Surface Mount Inductor 22 μH ±20 % 2.6 A Idc
  • RS Stock No. 616-860
  • Mfr. Part No. 36560650M220T
Subtotal (1000 units, on reels of 1000)
MYR4,517.00
MYR4.517/unit
In Stock
Panasonic ERJ 2RK 453 Ω, 0402 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - ERJ2RKF4530X
  • RS Stock No. 277-757P
  • Mfr. Part No. ERJ2RKF4530X
Subtotal (10 units, supplied on a continuous strip)
MYR0.45
MYR0.045/unit
Currently unavailable
ROHM ESR10 11 kΩ, 0805 Thick Film Resistor ±5 % 0.4 W - ESR10EZPJ113
  • RS Stock No. 262-9426
  • Mfr. Part No. ESR10EZPJ113
Subtotal (5000 units, on reels of 5000)
MYR440.00
MYR0.088/unit
In Stock
Wurth Elektronik, WE-PDF Shielded Power Inductor with a Ferrite Core, 6.2 μH ±30 % 9.4 A Idc
  • RS Stock No. 484-709P
  • Mfr. Part No. 7447798620
Subtotal (1 unit, supplied on a continuous strip)
MYR134.66
MYR134.66/unit
Temporarily out of stock
Welwyn 2.2 Ω Wirewound Resistor 3 W 5 % W21-2R2JI
  • RS Stock No. 139-3258
  • Mfr. Part No. W21-2R2JI
Subtotal (1000 units, in boxes of 1000)
MYR2,850.00
MYR2.85/unit
In Stock
TE Connectivity, 68 Ω 1.23 kW Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 281-9602
  • Mfr. Part No. CJB1230J68RJ
Subtotal (1 unit)
MYR1,849.05
MYR1,849.05/unit
Stocked by manufacturer
Schneider Electric Power Factor Correction Capacitor PFC 32 kvar
  • RS Stock No. 341-031
  • Mfr. Part No. VLVFW0N03504AA
Subtotal (1 unit)
MYR14,421.43
MYR14,421.43/unit
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