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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

169798 Products showing for Passive Components

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In Stock
TDK 470 μF Capacitor 35V dc, Radial, Through Hole - B41896C7477M000 Radial Lead
  • RS Stock No. 241-6707
  • Mfr. Part No. B41896C7477M000
Subtotal (1 bag of 5 units)
£5.80(exc. VAT)
£1.16/unit
In Stock
Panasonic 100 μF Aluminium Electrolytic Capacitor 25V dc, Surface Solder - EEEFPE101XAP 900
  • RS Stock No. 568-799
  • Mfr. Part No. EEEFPE101XAP
Subtotal (1 pack of 5 units)
£3.54(exc. VAT)
£0.708/unit
Temporarily out of stock
Panasonic 22 μF Capacitor 63V dc, Radial, Through Hole - EEUFC1J220 Radial Lead
  • RS Stock No. 108-1354
  • Mfr. Part No. EEUFC1J220
Subtotal (1 bag of 200 units)
£25.00(exc. VAT)
£0.125/unit
In Stock
Wurth Elektronik Ferrite Bead 800 μm (Surface) (0603) (High Current), 300 Ω impedance at 100 MHz
  • RS Stock No. 124-1834P
  • Mfr. Part No. 742792641
Subtotal 50 units (supplied on a continuous strip)
£6.55(exc. VAT)
£0.131/unit
In Stock
Vishay PCAN 49.9 Ω, 2512 Thin Film Surface Mount Resistor ±0.1 % 6 W - PCAN2512E49R9BST3
  • RS Stock No. 884-1051
  • Mfr. Part No. PCAN2512E49R9BST3
Subtotal (1 bag of 10 units)
£81.42(exc. VAT)
£8.142/unit
Temporarily out of stock
Panasonic ERJP06 100 Ω, 0805 Thick Film Surface Mount Resistor ±1 % 0.5 W - ERJP06F1000V
  • RS Stock No. 922-8890
  • Mfr. Part No. ERJP06F1000V
Subtotal (1 reel of 5000 units)
£100.00(exc. VAT)
£0.02/unit
Last RS stock
TE Connectivity CRGH 1 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % Surface 0.5 W - CRGH1206F1K0
  • RS Stock No. 807-1081
  • Mfr. Part No. CRGH1206F1K0
Subtotal (1 bag of 100 units)
£1.20(exc. VAT)
£0.012/unit
Last RS stock
Nichicon 1000 μF Capacitor 25V dc, Radial, Through Hole - UPM1E102MHD Radial Lead
  • RS Stock No. 520-1539
  • Mfr. Part No. UPM1E102MHD
Subtotal (1 pack of 5 units)
£3.50(exc. VAT)
£0.70/unit
Temporarily out of stock
Panasonic ERJ1T 8.2 Ω, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - ERJ1TRQF8R2U
  • RS Stock No. 721-6340
  • Mfr. Part No. ERJ1TRQF8R2U
Subtotal (1 pack of 5 units)
£3.90(exc. VAT)
£0.78/unit
In Stock
Panasonic 100 μF Electrolytic Capacitor 25V, Radial - ECA1EM101I Radial
  • RS Stock No. 759-069P
  • Mfr. Part No. ECA1EM101I
Subtotal 5 units (supplied as a tape)
£0.77(exc. VAT)
£0.154/unit
In Stock
Bourns, SRR1280, 1280 Shielded Power Inductor with a Ferrite Core, 120 μH ±20 % 1.95 A Idc Q:16
  • RS Stock No. 466-167
  • Mfr. Part No. SRR1280-121K
Subtotal (1 bag of 2 units)
£1.49(exc. VAT)
£0.745/unit
Last RS stock
Bourns CRL 1 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRL0603-FW-1R00ELF
  • RS Stock No. 794-4083
  • Mfr. Part No. CRL0603-FW-1R00ELF
Subtotal (1 pack of 10 units)
£0.22(exc. VAT)
£0.022/unit
In Stock
Vishay CRCW 120 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW1206120KFKEA
  • RS Stock No. 679-1783
  • Mfr. Part No. CRCW1206120KFKEA
Subtotal (1 pack of 50 units)
£1.70(exc. VAT)
£0.034/unit
In Stock
TE Connectivity CPF 47 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - CPF0402B47KE1
  • RS Stock No. 701-5462
  • Mfr. Part No. CPF0402B47KE1
Subtotal (1 pack of 10 units)
£1.53(exc. VAT)
£0.153/unit
In Stock
RS PRO 3.3 kΩ, 0805 Thick Film Surface Mount Resistor ±5 % 0.13 W
  • RS Stock No. 713-6973
Subtotal (1 reel of 5000 units)
£15.00(exc. VAT)
£0.003/unit
In Stock
Vishay MMB0207 470 Ω, 0207 Thin Film Surface Mount Resistor ±1 % 0.4 W - MMB02070C4700FB200
  • RS Stock No. 678-8065
  • Mfr. Part No. MMB02070C4700FB200
Subtotal (1 pack of 25 units)
£1.93(exc. VAT)
£0.077/unit
In Stock
Vishay CRCW 300 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW0402300RFKED
  • RS Stock No. 678-9134
  • Mfr. Part No. CRCW0402300RFKED
Subtotal (1 pack of 50 units)
£1.05(exc. VAT)
£0.021/unit
In Stock
ROHM ESR03 430 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ESR03EZPF4303
  • RS Stock No. 263-1001
  • Mfr. Part No. ESR03EZPF4303
Subtotal (1 tape of 100 units)
£4.10(exc. VAT)
£0.041/unit
In Stock
ROHM ESR25 470 Ω, 1210 Thick Film Resistor ±5 % 0.66 W - ESR25JZPJ471
  • RS Stock No. 263-7677
  • Mfr. Part No. ESR25JZPJ471
Subtotal (1 tape of 10 units)
£0.93(exc. VAT)
£0.093/unit
In Stock
ROHM ESR25 560 Ω, 1210 Thick Film Resistor ±5 % 0.66 W - ESR25JZPJ561
  • RS Stock No. 263-7696
  • Mfr. Part No. ESR25JZPJ561
Subtotal (1 tape of 10 units)
£0.93(exc. VAT)
£0.093/unit
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