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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

169217 Products showing for Passive Components

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1660 of 999+
In Stock
Wurth Elektronik 20 mH Manganese Zinc Common Mode Choke, 2 A Idc, 220 mΩ Rdc 250V ac, WE-CMB
  • RS Stock No. 163-3399
  • Mfr. Part No. 744824220
Subtotal (25 units, in boxes of 25)
£101.25(exc. VAT)
£4.05/unit
In Stock
Wurth Elektronik 2 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 20 A Idc, 2.4 mΩ Rdc, WE-CMBNC
  • RS Stock No. 163-5550
  • Mfr. Part No. 7448042001
Subtotal (25 units, in boxes of 25)
£257.25(exc. VAT)
£10.29/unit
Currently unavailable
Wurth Elektronik 8 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 1 A Idc, 330 mΩ Rdc 250V ac, WE-CMBNC
  • RS Stock No. 163-5531
  • Mfr. Part No. 7448011008
Subtotal (300 units, in boxes of 300)
£1,023.00(exc. VAT)
£3.41/unit
Temporarily out of stock
Wurth Elektronik 2 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 15 A Idc, 3.3 mΩ Rdc, WE-CMBNC
  • RS Stock No. 163-5542
  • Mfr. Part No. 7448031501
Subtotal (90 units, in boxes of 90)
£746.10(exc. VAT)
£8.29/unit
In Stock
Wurth Elektronik 1 mH Ferrite Radial Inductor, 290 mA Idc, 6 Ω Rdc, WE-TI
  • RS Stock No. 163-3301
  • Mfr. Part No. 744741102
Subtotal (140 units, in trays of 140)
£122.64(exc. VAT)
£0.876/unit
In Stock
Wurth Elektronik 190 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 2 A Idc, 310 mΩ Rdc, WE-CMBNC
  • RS Stock No. 163-5551
  • Mfr. Part No. 7448050219
Subtotal (24 units, in boxes of 24)
£292.08(exc. VAT)
£12.17/unit
In Stock
Wurth Elektronik 12 mH Nano Crystal Common Mode Choke, Max SRF:300 MHz, 10 A Idc, 15 mΩ Rdc, WE-CMBNC
  • RS Stock No. 163-5554
  • Mfr. Part No. 7448051012
Subtotal (24 units, in boxes of 24)
£292.08(exc. VAT)
£12.17/unit
Currently unavailable
EPCOS 330 μH -30 → +50% Ferrite Power Line Choke, Max SRF:100kHz, 2.6A Idc, 60mΩ Rdc 300 V ac, B82730G
  • RS Stock No. 167-0266
  • Mfr. Part No. B82730G3262A020
Subtotal (704 units, in boxes of 704)
£625.152(exc. VAT)
£0.888/unit
Temporarily out of stock
Wurth Elektronik 0.117 μH Coil Inductor, Max SRF:345 MHz, Q:211, 32 A Idc, 1.43 mΩ Rdc, WE-AC HC
  • RS Stock No. 168-3166
  • Mfr. Part No. 7449152111
Subtotal (250 units, on reels of 250)
£350.00(exc. VAT)
£1.40/unit
Temporarily out of stock
TDK 3.9 mH Ferrite Power Line Choke, 6 A Idc, 40 mΩ Rdc 250V ac, B82725A
  • RS Stock No. 167-0524
  • Mfr. Part No. B82725A2602N001
Subtotal (160 units, in boxes of 160)
£509.60(exc. VAT)
£3.185/unit
Temporarily out of stock
TDK 1.2 μH Ferrite Leaded Inductor, Max SRF:185 MHz, Q:55, 1.15 A Idc, 180 mΩ Rdc, BC
  • RS Stock No. 191-0396
  • Mfr. Part No. B78108S1122K000
Subtotal (10 units, in packs of 10)
£1.48(exc. VAT)
£0.148/unit
In Stock
Wurth Elektronik 6.8 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:16 MHz, 56.7 A Idc, 1.2 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7296
  • Mfr. Part No. 7443763540068
Subtotal (1 unit)
£16.49(exc. VAT)
£16.49/unit
Last RS stock
RS PRO 33 μH Power Inductor, 3 A Idc, 0.038 Ω Rdc
  • RS Stock No. 173-0030
Subtotal (300 units, in boxes of 300)
£137.10(exc. VAT)
£0.457/unit
Currently unavailable
KEMET 36 μH Iron Leaded Inductor, 5 A Idc, 0.02 mΩ Rdc, SN
  • RS Stock No. 181-6000
  • Mfr. Part No. SN12-300
Subtotal (1 unit)
£5.78(exc. VAT)
£5.78/unit
In Stock
Wurth Elektronik 15 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:12 MHz, 45.3 A Idc, 2.16 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7083
  • Mfr. Part No. 7443763540150
Subtotal (6 units, in trays of 6)
£90.36(exc. VAT)
£15.06/unit
Temporarily out of stock
Wurth Elektronik 3.3 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:40 MHz, 28.7 A Idc, 2.4 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7088
  • Mfr. Part No. 7443782012033
Subtotal (40 units, in trays of 40)
£122.00(exc. VAT)
£3.05/unit
In Stock
Wurth Elektronik SMD Power Chokes Series WE-LQS Type 5040/6028/6045/8040 Inductor Kit, 35 pieces
  • RS Stock No. 862-4998
  • Mfr. Part No. 7440405
Subtotal (1 unit)
£134.00(exc. VAT)
£134.00/unit
In Stock
Wurth Elektronik 1.5 μH Manganese Zinc Ferrite Leaded Inductor, Max SRF:37 MHz, 75 A Idc, 0.4 mΩ Rdc, WE-HCFT
  • RS Stock No. 185-7419
  • Mfr. Part No. 7443763521015
Subtotal (1 unit)
£9.27(exc. VAT)
£9.27/unit
Temporarily out of stock
TDK 100 mH Ferrite Leaded Inductor, Max SRF:120 kHz, Q:40, 20 mA Idc, 420 Ω Rdc, LBC
  • RS Stock No. 191-1226
  • Mfr. Part No. B82144A2107J000
Subtotal (5 units, in packs of 5)
£1.88(exc. VAT)
£0.376/unit
Temporarily out of stock
Panasonic 270 μF Polymer Capacitor 16V dc, Through Hole - 16SEPC270MX
  • RS Stock No. 179-3361
  • Mfr. Part No. 16SEPC270MX
Subtotal (200 units, in bags of 200)
£102.40(exc. VAT)
£0.512/unit
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