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

Another type of passive component is the resistor. 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, it's 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 component 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; some examples would include windings from a transformer and inductors. It is useful because of its low electrical conductivity and high magnetic permeability.

Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic equipment and circuitry with added protection against the harmful effects of electricity surges, improving their longevity.

RS is a supplier of passive components with a wide variety of quality products from leading manufacturers across the world.

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Antennas
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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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160770 Products showing for Passive Components

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Taiyo Yuden 1 μF Multilayer Ceramic Capacitor, 25V dc, Surface
  • RS Stock No. 240-5712
  • Mfr. Part No. MSAST105AC6105KFNA01
Subtotal (1 pack of 100 units)
SGD9.20(exc. GST)
SGD0.092/unit
In Stock
Panasonic 100 μF Capacitor 16V dc, Surface Solder 900
  • RS Stock No. 215-8407P
  • Mfr. Part No. EEEFH1C101XL
Subtotal 20 units (supplied on a continuous strip)
SGD10.98(exc. GST)
SGD0.549/unit
Temporarily out of stock
TDK Single Layer Ceramic Capacitor 390 pF 1kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1883
  • Mfr. Part No. CC45SL3AD391JYNNA
Subtotal (1 box of 1000 units)
SGD173.00(exc. GST)
SGD0.173/unit
In Stock
Vishay 20 Ω Thick Film Power Film Resistor 100 W 1 % LTO100F20R00FTE3
  • RS Stock No. 653-057
  • Mfr. Part No. LTO100F20R00FTE3
Subtotal (1 unit)
SGD15.70(exc. GST)
SGD15.70/unit
Currently unavailable
Vishay Metal Film Resistor 3 W 5 PR03000207502JAC00
  • RS Stock No. 251-3977P
  • Mfr. Part No. PR03000207502JAC00
Subtotal 5 units (supplied in a box)
SGD3.41(exc. GST)
SGD0.682/unit
In Stock
KEMET R73 Film Capacitor, ±5 %, 15 nF 630 V dc 300V ac, Through Hole
  • RS Stock No. 171-9208
  • Mfr. Part No. R73PI21504000J
Subtotal (1 pack of 10 units)
SGD9.60(exc. GST)
SGD0.96/unit
Temporarily out of stock
Bourns, SRN4026, 4026 Shielded Surface Mount Inductor with a Ferrite Core, 3.3 μH Semi Shielded ±20 % 1.6 A Idc Q:9
  • RS Stock No. 172-8364
  • Mfr. Part No. SRN4026-3R3M
Subtotal (1 reel of 3000 units)
SGD729.00(exc. GST)
SGD0.243/unit
In Stock
Littelfuse, CH Varistor 60 pF 10 A, Clamping 650 V, Varistor 354 to 429 V, 3220
  • RS Stock No. 760-6999
  • Mfr. Part No. V390CH8T
Subtotal (1 pack of 5 units)
SGD10.65(exc. GST)
SGD2.13/unit
In Stock
Bourns PWR163 100 mΩ, TO-252 Thick Film Surface Mount Resistor ±1 % 25 W - PWR163S-25-R100F
  • RS Stock No. 820-0062
  • Mfr. Part No. PWR163S-25-R100F
Subtotal (1 unit)
SGD7.28(exc. GST)
SGD7.28/unit
Last RS stock
TE Connectivity CPF 6.8 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0402B6K8E1
  • RS Stock No. 701-5015
  • Mfr. Part No. CPF0402B6K8E1
Subtotal (1 pack of 10 units)
SGD4.17(exc. GST)
SGD0.417/unit
In Stock
TDK, B86301U 45 A 520V ac 50Hz, 60 Hz, Chassis Mount EMC Filter, Terminal Block 3 Phase
  • RS Stock No. 111-5333
  • Mfr. Part No. B86301U0045R000
Subtotal (1 unit)
SGD344.33(exc. GST)
SGD344.33/unit
Temporarily out of stock
Bourns, SRR1280, 1280 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 15 μH ±20 % 5.2 A Idc Q:26
  • RS Stock No. 172-8539
  • Mfr. Part No. SRR1280-150M
Subtotal (1 reel of 400 units)
SGD359.20(exc. GST)
SGD0.898/unit
Last RS stock
TDK, AdvancedD Metal Oxide Varistor 1.7 nF 100 A, Clamping 360 V, Varistor 220 V
  • RS Stock No. 241-6776
  • Mfr. Part No. B72220S2141K101
Subtotal (1 bag of 250 units)
SGD297.00(exc. GST)
SGD1.188/unit
In Stock
Panasonic 100 μF Capacitor 35V dc, Surface Solder 900
  • RS Stock No. 773-4198P
  • Mfr. Part No. EEETQV101XAP
Subtotal 5 units (supplied on a continuous strip)
SGD6.86(exc. GST)
SGD1.372/unit
In Stock
Vishay, DTO D2TO Thick Film, Surface Mount 12 Resistor Sample Kit 4, 0.01 Ω to 550 kΩ
  • RS Stock No. 877-964
  • Mfr. Part No. ACCLFFDTOSPLKIT
Subtotal (1 unit)
SGD381.69(exc. GST)
SGD381.69/unit
Temporarily out of stock
Panasonic ECWFE Film Capacitor, ±5 %, 4.7 μF 450 V dc, Through Hole
  • RS Stock No. 122-4013
  • Mfr. Part No. ECWFE2W475JA
Subtotal (1 reel of 200 units)
SGD220.40(exc. GST)
SGD1.102/unit
In Stock
TDK 10 mH Ferrite Power Line Choke, Max SRF:10 kHz, 1.1 A Idc, 400 mΩ Rdc 250V ac, B82731M
  • RS Stock No. 167-0380
  • Mfr. Part No. B82731M2112A030
Subtotal (1 box of 800 units)
SGD1,733.60(exc. GST)
SGD2.167/unit
Temporarily out of stock
Yageo RC 30 Ω, 0603 Thick Film Surface Mount Fixed Resistor ±1 % 0.1 W - RC0603FR-0730RL
  • RS Stock No. 242-4106
  • Mfr. Part No. RC0603FR-0730RL
Subtotal (1 tape of 100 units)
SGD1.00(exc. GST)
SGD0.01/unit
Last RS stock
Vishay WSL 70 mΩ, 1206 Metal Strip Surface Mount Resistor ±1 % 0.25 W - WSL1206R0700FEA
  • RS Stock No. 683-6445
  • Mfr. Part No. WSL1206R0700FEA
Subtotal (1 pack of 5 units)
SGD3.34(exc. GST)
SGD0.668/unit
In Stock
KEMET 10 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 801-5378
  • Mfr. Part No. C0603C103K1RACTU
Subtotal (1 pack of 50 units)
SGD2.10(exc. GST)
SGD0.042/unit
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