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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

170028 Products showing for Passive Components

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1594 of 999+
In Stock
Vishay 2.2 nF Multilayer Ceramic Capacitor, 1kV dc, 5 %, Surface
  • RS Stock No. 298-303
  • Mfr. Part No. VJ1210A222JBGTW1HV
Subtotal (1 bag of 25 units)
£6.70(exc. VAT)
£0.268/unit
Last RS stock
TDK, B84111A 10 A 250V ac/dc 50Hz, 60 Hz EMC Filter, Tab 1 Phase
  • RS Stock No. 191-9669
  • Mfr. Part No. B84111A0000A110
Subtotal (1 box of 32 units)
£591.968(exc. VAT)
£18.499/unit
In Stock
Wurth Elektronik, 784383, 2010 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 1.2 μH Shielded ±20 %
  • RS Stock No. 426-983
  • Mfr. Part No. 78438343012
Subtotal (1 reel of 3000 units)
£3,228.00(exc. VAT)
£1.076/unit
In Stock
Wurth Elektronik, WE-DD Shielded Power Inductor with a Ferrite Core, 20 μH ±20 % 2.7 A Idc
  • RS Stock No. 486-484P
  • Mfr. Part No. 744870100
Subtotal 1 unit (supplied on a continuous strip)
£2.30(exc. VAT)
£2.30/unit
Temporarily out of stock
KEMET 470 μF Surface Polymer Capacitor, 2.5V dc
  • RS Stock No. 187-7065
  • Mfr. Part No. T520V477M2R5ATE015
Subtotal (1 reel of 1000 units)
£659.00(exc. VAT)
£0.659/unit
Temporarily out of stock
RS PRO 0.47 F Supercapacitor -20 to 80 % Tolerance 5.5V dc, PCB
  • RS Stock No. 184-5048
Subtotal (1 tray of 1600 units)
£1,000.00(exc. VAT)
£0.625/unit
Temporarily out of stock
Panasonic, E-S1 Surge Absorber 800 pF 100 A, Clamping 1815 V, Varistor 430 V
  • RS Stock No. 187-8142
  • Mfr. Part No. ERZE14A431SC
Subtotal (1 bag of 2000 units)
£654.00(exc. VAT)
£0.327/unit
Temporarily out of stock
KOA RN73H 12 Ω, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RN73H1ETTP1202B25
  • RS Stock No. 187-7975
  • Mfr. Part No. RN73H1ETTP1202B25
Subtotal (1 reel of 250 units)
£36.50(exc. VAT)
£0.146/unit
In Stock
KEMET R76_125C Film Capacitor, ±5 %, 2.2 nF 2 kV dc 700V ac, Through Hole
  • RS Stock No. 192-8755
  • Mfr. Part No. R76UI122050H4J
Subtotal (1 bag of 1500 units)
£199.50(exc. VAT)
£0.133/unit
Limited stock
Vishay CRCW 3.9 mΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW06033M90FKEA
  • RS Stock No. 181-7761
  • Mfr. Part No. CRCW06033M90FKEA
Subtotal (1 reel of 1000 units)
£7.00(exc. VAT)
£0.007/unit
Stocked by manufacturer
TE Connectivity Holsworthy RN73 52.3 kΩ, 0402 Thin Film Surface Mount Resistor 0.1 % Surface 0.06 W - 3-2176263-3
  • RS Stock No. 476-076
  • Mfr. Part No. 3-2176263-3
Subtotal (1 reel of 5000 units)
£1,335.00(exc. VAT)
£0.267/unit
In Stock
KEMET R76_125C Film Capacitor, ±5 %, 3.9 nF 2 kV dc 700V ac, Through Hole
  • RS Stock No. 192-8701
  • Mfr. Part No. R76UI139050H4J
Subtotal (1 pack of 25 units)
£7.30(exc. VAT)
£0.292/unit
Temporarily out of stock
Murata NTC Thermistor, NTC Type 47 kΩ, 0402 0.5 mm 1 mm 0.5 mm
  • RS Stock No. 187-3562
  • Mfr. Part No. NCP15WB473F03RC
Subtotal (1 reel of 250 units)
£15.50(exc. VAT)
£0.062/unit
In Stock
Wurth Elektronik, WE-HCF, 2818 Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Ferrite Core, 3.3 μH ±20
  • RS Stock No. 185-7074
  • Mfr. Part No. 7443640330B
Subtotal (1 tray of 20 units)
£109.40(exc. VAT)
£5.47/unit
In Stock
Wurth Elektronik, WE-DD Shielded Power Inductor with a Ferrite Core, 9.4 μH ±20 % 3.6 A Idc
  • RS Stock No. 486-481P
  • Mfr. Part No. 744870004
Subtotal 1 unit (supplied on a continuous strip)
£2.30(exc. VAT)
£2.30/unit
Temporarily out of stock
Panasonic, E-S1 Surge Absorber 500 pF 100 A, Clamping 1355 V, Varistor 820 V
  • RS Stock No. 187-8128
  • Mfr. Part No. ERZE14A821S1
Subtotal (1 bag of 1000 units)
£370.00(exc. VAT)
£0.37/unit
In Stock
Wurth Elektronik, WE-KI Power Inductor 22 nH 5 % Q:25
  • RS Stock No. 485-371
  • Mfr. Part No. 744765122A
Subtotal (1 tape of 20 units)
£6.46(exc. VAT)
£0.323/unit
In Stock
Wurth Elektronik KS04 442 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - 560112110242
  • RS Stock No. 427-353
  • Mfr. Part No. 560112110242
Subtotal (1 tape of 10 units)
£0.25(exc. VAT)
£0.025/unit
In Stock
KEMET 47000 μF Capacitor 40V dc, Snap-in
  • RS Stock No. 185-9580
  • Mfr. Part No. ALC80A473EL040
Subtotal (1 unit)
£10.95(exc. VAT)
£10.95/unit
In Stock
Panasonic ERA 220 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB224V
  • RS Stock No. 180-9746
  • Mfr. Part No. ERA3AEB224V
Subtotal (1 reel of 500 units)
£17.00(exc. VAT)
£0.034/unit
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