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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
Capacitors
Crystals, Oscillators & Resonators
EMI Filters & Protection
Fixed Resistors
Inductors
Passive Components Kits
Rotary Encoders
Sounder, Buzzer & Microphone Components
Surge Protection Components
Variable Resistors

169665 Products showing for Passive Components

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Temporarily out of stock
Murata Power Solutions, 8400 Surface Mount Inductor with a Ferrite Core, 2.2 mH 10 % 50 A Idc
  • RS Stock No. 279-8053P
  • Mfr. Part No. 84225C
Subtotal 5 units (supplied on a continuous strip)
£3.55(exc. VAT)
£0.71/unit
In Stock
Wurth Elektronik, WE-PD, 1210 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 150 μH ±20 % 2.1 A Idc
  • RS Stock No. 163-4217
  • Mfr. Part No. 7447709151
Subtotal (1 reel of 250 units)
£414.25(exc. VAT)
£1.657/unit
In Stock
Wurth Elektronik, WE-RFI, 1008 Shielded Surface Mount Inductor with a Ferrite Core, 39 μH Ferrite Core ±5 % 60 mA Idc
  • RS Stock No. 800-7829
  • Mfr. Part No. 744762439A
Subtotal (1 pack of 5 units)
£1.53(exc. VAT)
£0.306/unit
In Stock
Yageo RC_L 330 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 2 W - RC2512JK-07330RL
  • RS Stock No. 198-8574
  • Mfr. Part No. RC2512JK-07330RL
Subtotal (1 tape of 10 units)
£0.79(exc. VAT)
£0.079/unit
In Stock
Wurth Elektronik, WE-HCF SMT, 2920 Shielded Wirewound Surface Mount Inductor with a Manganese Zinc Ferrite Core, 470 μH
  • RS Stock No. 258-5680
  • Mfr. Part No. 74437529203471
Subtotal (1 tray of 20 units)
£137.80(exc. VAT)
£6.89/unit
In Stock
Arcol Ohmite HS150 1R5 F, 1.5 Ω 150 W Wirewound High Power Resistor ±1 %
  • RS Stock No. 263-4241
  • Mfr. Part No. HS150 1R5 F
Subtotal (1 box of 30 units)
£276.57(exc. VAT)
£9.219/unit
In Stock
Wurth Elektronik Ferrite Bead 5.45 mm 5.45 mm (EMI Suppression Axial Ferrite Bead), 27 Ω impedance at 25 MHz, 47 Ω
  • RS Stock No. 332-478
  • Mfr. Part No. 742700391
Subtotal (1 bag of 250 units)
£36.25(exc. VAT)
£0.145/unit
In Stock
250 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3296
  • RS Stock No. 522-0186P
  • Mfr. Part No. 3296Y-1-254LF
Subtotal 1 unit (supplied in a tube)
£1.49(exc. VAT)
£1.49/unit
In Stock
Murata Power Solutions 100 μH Leaded Inductor, 2.2 A Idc, 90 mΩ Rdc, 1900R
  • RS Stock No. 715-7226
  • Mfr. Part No. 19R104C
Subtotal (1 unit)
£1.35(exc. VAT)
£1.35/unit
In Stock
Abracon 100 μH 150 mA Common Mode Choke 1500 mΩ 80V
  • RS Stock No. 245-0457
  • Mfr. Part No. ACMS-Q3225-101-T
Subtotal (1 reel of 2000 units)
£334.00(exc. VAT)
£0.167/unit
Last RS stock
Vishay, IHLE4040, 4040 Shielded Surface Mount Inductor 4.7 μH ±20 % 9.8 A Idc
  • RS Stock No. 228-8717P
  • Mfr. Part No. IHLE4040DDER4R7M5A
Subtotal 5 units (supplied on a continuous strip)
£6.05(exc. VAT)
£1.21/unit
Temporarily out of stock
Vishay MKP 339 Film Capacitor, ±20 %, 47 nF 630 V dc 310V ac, Through Hole
  • RS Stock No. 173-3782
  • Mfr. Part No. 2222 339 20473
Subtotal (1 box of 1000 units)
£713.00(exc. VAT)
£0.713/unit
In Stock
Vishay CRCW 22 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRCW060322K0FKEAHP
  • RS Stock No. 820-6805
  • Mfr. Part No. CRCW060322K0FKEAHP
Subtotal (1 bag of 25 units)
£0.85(exc. VAT)
£0.034/unit
Currently unavailable
Vishay MKT 1813 Film Capacitor 470 nF 160V ac 250 V dc, Through Hole
  • RS Stock No. 173-1433
  • Mfr. Part No. MKT1813447255
Subtotal (1 box of 1750 units)
£1,223.25(exc. VAT)
£0.699/unit
Currently unavailable
TDK Thermistor 10 kΩ, 0805 1.3 mm 2 mm 600 μm
  • RS Stock No. 167-0337
  • Mfr. Part No. B57421V2103J062
Subtotal (1 reel of 4000 units)
£380.00(exc. VAT)
£0.095/unit
Temporarily out of stock
TDK 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 903-8708
  • Mfr. Part No. CGA4J2X8R1H104K125AA
Subtotal (1 pack of 50 units)
£2.60(exc. VAT)
£0.052/unit
Temporarily out of stock
TDK B32529 Polyester Capacitor (PET) 1 nF 100V ac 100 V dc, Through Hole 2
  • RS Stock No. 241-6565
  • Mfr. Part No. B32529C1102J189
Subtotal (1 reel of 2800 units)
£168.00(exc. VAT)
£0.06/unit
In Stock
Murata Ferrite Bead 850 μm (Surface) (0805) (Chip Ferrite Bead), 1000 Ω impedance at 100 MHz
  • RS Stock No. 724-1551P
  • Mfr. Part No. BLM21RK102SN1D
Subtotal 25 units (supplied on a continuous strip)
£1.80(exc. VAT)
£0.072/unit
Temporarily out of stock
Bourns, SRP1265WA, 1265 Shielded Power Inductor with a Metal Alloy Powder Core, 4.7 μH ±20 % 17 A Idc Q:20
  • RS Stock No. 247-6087P
  • Mfr. Part No. SRP1265WA-4R7M
Subtotal 1 unit (supplied on a continuous strip)
£1.47(exc. VAT)
£1.47/unit
In Stock
Panasonic ERA8V 100 kΩ, 1206 Thin Film Resistor 0.1 % 0.25 W - ERA8VEB1003V
  • RS Stock No. 259-6960
  • Mfr. Part No. ERA8VEB1003V
Subtotal (1 reel of 5000 units)
£1,070.00(exc. VAT)
£0.214/unit
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