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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 be: 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 component that can gather and hold a charge in a way that is similar to how a battery functions. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates 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

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 its 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 device 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, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
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

169617 Products showing for Passive Components

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2124 of 999+
Last RS stock
TE Connectivity 33 Ω Carbon Film Resistor 1 W 5 %
  • RS Stock No. 161-3888
  • Mfr. Part No. CFR100J33R
Subtotal (1 box of 1000 units)
£43.00(exc. VAT)
£0.043/unit
In Stock
ROHM MCR 1 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - MCR18EZPF1001
  • RS Stock No. 901-3724
  • Mfr. Part No. MCR18EZPF1001
Subtotal (1 bag of 100 units)
£1.70(exc. VAT)
£0.017/unit
Last RS stock
Rubycon 680 μF Capacitor 400V dc, Snap-in Radial Lead
  • RS Stock No. 767-3093
  • Mfr. Part No. 400VXH680MEFCSN35X45
Subtotal (1 unit)
£9.76(exc. VAT)
£9.76/unit
In Stock
Murata, DFE252012P, 2012 Shielded Wirewound Surface Mount Inductor with a Powdered Iron Core, 4.7 μH ±20 % 2.2 A Idc
  • RS Stock No. 105-8576
  • Mfr. Part No. DFE252012P-4R7M=P2
Subtotal (1 pack of 10 units)
£1.42(exc. VAT)
£0.142/unit
In Stock
Bourns, SRN3015, 3015 Shielded Surface Mount Inductor with a Ferrite Core, 1.5 μH Semi Shielded ±30 % 2.1 A Idc Q:16
  • RS Stock No. 172-9557
  • Mfr. Part No. SRN3015-1R5Y
Subtotal (1 reel of 2000 units)
£300.00(exc. VAT)
£0.15/unit
In Stock
Siretta TANGO52/2.0M/SMAM/S/S/17 Stubby Omni-Directional Antenna with SMA Connector, ISM Band
  • RS Stock No. 222-2689
  • Mfr. Part No. TANGO52/2.0M/SMAM/S/S/17
Subtotal (1 unit)
£27.28(exc. VAT)
£27.28/unit
In Stock
AKER, 24MHz Clock Oscillator, ±50 ppm CMOS, 4-Pin Surface Mount S53305-24.000-X
  • RS Stock No. 671-9696
  • Mfr. Part No. S53305-24.000-X
Subtotal (1 unit)
£3.01(exc. VAT)
£3.01/unit
Temporarily out of stock
Panasonic 220 μF Aluminium Electrolytic Capacitor 4V dc, Surface - EEFKX0G221RF
  • RS Stock No. 287-8171
  • Mfr. Part No. EEFKX0G221RF
Subtotal (1 reel of 3500 units)
£4,518.50(exc. VAT)
£1.291/unit
Temporarily out of stock
Panasonic ECHU(X) 50 V dc 50V ac Film Capacitor, 15 nF, Surface
  • RS Stock No. 920-3172
  • Mfr. Part No. ECHU1H153GX5
Subtotal (1 reel of 2000 units)
£378.00(exc. VAT)
£0.189/unit
Last RS stock
Vishay CRCW 2.26 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.06 W
  • RS Stock No. 678-9083P
  • Mfr. Part No. CRCW04022K26FKED
Subtotal 50 units (supplied on a continuous strip)
£0.10(exc. VAT)
£0.002/unit
Temporarily out of stock
Panasonic 390 μF Capacitor 63V dc, Radial, Through Hole - EEUFC1J391 Radial Lead
  • RS Stock No. 108-4027
  • Mfr. Part No. EEUFC1J391
Subtotal (1 bag of 100 units)
£46.70(exc. VAT)
£0.467/unit
In Stock
Panasonic ERA 240 Ω, 1206 Thin Film Surface Mount Resistor ±0.1 % 0.25 W - ERA8AEB241V
  • RS Stock No. 828-0816
  • Mfr. Part No. ERA8AEB241V
Subtotal (1 bag of 5 units)
£1.54(exc. VAT)
£0.308/unit
Temporarily out of stock
Panasonic ECHU(X) 16 V dc 16V ac Film Capacitor, 4.7 nF, Surface
  • RS Stock No. 920-3122
  • Mfr. Part No. ECHU1C472GX5
Subtotal (1 reel of 3000 units)
£360.00(exc. VAT)
£0.12/unit
Temporarily out of stock
TDK, Standard Metal Oxide Varistor 940 pF 100 A, Clamping 650 V, Varistor 390 V
  • RS Stock No. 134-5698
  • Mfr. Part No. B72220S0251K101
Subtotal (1 bag of 250 units)
£103.75(exc. VAT)
£0.415/unit
In Stock
KEMET PME271 Paper Capacitor Y2 250V ac 250 V dc, Through Hole
  • RS Stock No. 210-594P
  • Mfr. Part No. PME271Y447MR30
Subtotal 5 units (supplied in a box)
£4.28(exc. VAT)
£0.856/unit
In Stock
Panasonic ECWFJ Film Capacitor, 5 %, 5.6 μF 800 V dc 800V ac, Through Hole
  • RS Stock No. 637-857
  • Mfr. Part No. ECWFJ80565J
Subtotal (1 unit)
£1.95(exc. VAT)
£1.95/unit
In Stock
Bourns, SRN4018, 4018 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 1.2 μH ±30 % 3.5 A Idc Q:9
  • RS Stock No. 772-9694
  • Mfr. Part No. SRN4018-1R2Y
Subtotal (1 bag of 10 units)
£2.22(exc. VAT)
£0.222/unit
Currently unavailable
TE Connectivity RN73 9.31kΩ, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 215-3459
  • Mfr. Part No. RN73C2A9K31B
Subtotal (1 pack of 5 units)
£4.24(exc. VAT)
£0.848/unit
In Stock
RS PRO 86 dB Through Hole Continuous Internal 16 mm Piezo Buzzer Component 3 V dc Min 20V dc Max
  • RS Stock No. 754-1996
Subtotal (1 unit)
£3.43(exc. VAT)
£3.43/unit
In Stock
Littelfuse, ZA Metal Oxide Varistor 18.87 nF 100 A, Clamping 1240 V, Varistor 18 V, Disc
  • RS Stock No. 760-6905
  • Mfr. Part No. V18ZA3P
Subtotal (1 pack of 5 units)
£2.03(exc. VAT)
£0.406/unit
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