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.

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

158937 Products showing for Passive Components

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Vishay CRCW 2.4 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.125 W - CRCW08052K40FKEA
  • RS Stock No. 679-1213
  • Mfr. Part No. CRCW08052K40FKEA
Subtotal (1 pack of 50 units)
SGD1.55(exc. GST)
SGD0.031/unit
Temporarily out of stock
KEMET C44A Film Capacitor, ±5 %, 5 μF 1.5 kV dc 630V ac, Screw
  • RS Stock No. 173-4270
  • Mfr. Part No. C44ASGP4500ZB0J
Subtotal (1 bag of 12 units)
SGD721.848(exc. GST)
SGD60.154/unit
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RS PRO 470 Ω Carbon Film Resistor 0.25 W 5 %
  • RS Stock No. 707-7647P
Subtotal 10 units (supplied as a tape)
SGD1.92(exc. GST)
SGD0.192/unit
In Stock
Vishay CRCW 1 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.2 W
  • RS Stock No. 812-1596P
  • Mfr. Part No. CRCW04021K00FKEDHP
Subtotal 100 units (supplied on a continuous strip)
SGD3.30(exc. GST)
SGD0.033/unit
Temporarily out of stock
Vishay MKP1848 DC-Link Film Capacitor, ±5 %, 25 μF 450 V dc, Through Hole
  • RS Stock No. 173-0695
  • Mfr. Part No. MKP1848625454P4
Subtotal (1 tray of 91 units)
SGD1,465.282(exc. GST)
SGD16.102/unit
Stock information currently inaccessible
Vishay WSL 150 mΩ, 1206 Metal Strip Surface Mount Resistor ±1 % 0.25 W - WSL1206R1500FEA
  • RS Stock No. 683-6454
  • Mfr. Part No. WSL1206R1500FEA
Subtotal (1 pack of 5 units)
SGD4.11(exc. GST)
SGD0.822/unit
In Stock
Wurth Elektronik, WELQ 1812 Surface Mount Inductor with a Ferrite Core, 470 μH 0.105 A Idc Q:50
  • RS Stock No. 548-605
  • Mfr. Part No. 744045471
Subtotal (1 tape of 10 units)
SGD13.00(exc. GST)
SGD1.30/unit
In Stock
TDK Single Layer Ceramic Capacitor 1000 pF 3kV dc ±10 %, CK45, Through Hole 105 °C Max Op. Temp.
  • RS Stock No. 253-2812
  • Mfr. Part No. CK45-B3FD102KYGNA
Subtotal (1 reel of 1000 units)
SGD201.00(exc. GST)
SGD0.201/unit
In Stock
KEMET C27 Film Capacitor, ±5 %, 25 μF 470V ac, Chassis Mount
  • RS Stock No. 377-8958
  • Mfr. Part No. C274AC35250SA0J
Subtotal (1 unit)
SGD25.68(exc. GST)
SGD25.68/unit
In Stock
KEMET 100 nF Multilayer Ceramic Capacitor, 25V dc, ±5 %, Surface
  • RS Stock No. 801-5237
  • Mfr. Part No. C0603C104J3RACTU
Subtotal (1 pack of 25 units)
SGD1.975(exc. GST)
SGD0.079/unit
In Stock
Littelfuse, LA Metal Oxide Varistor 550 pF 100 A, Clamping 1160 V, Varistor 670 to 790 V
  • RS Stock No. 760-7030
  • Mfr. Part No. V480LA80BP
Subtotal (1 pack of 5 units)
SGD6.27(exc. GST)
SGD1.254/unit
Temporarily out of stock
PCN RH30BL-T R0001 B, 100 Ω 30 W Power Shunt Chassis Mount Resistor ±0.1 %
  • RS Stock No. 161-5848
  • Mfr. Part No. RH30BL-T R0001 B
Subtotal (1 unit)
SGD300.96(exc. GST)
SGD300.96/unit
In Stock
Vishay 55 W 22 Ω Wirewound Rheostat 0.16A
  • RS Stock No. 788-7706
  • Mfr. Part No. RT055AS22R0KB
Subtotal (1 unit)
SGD1,239.89(exc. GST)
SGD1,239.89/unit
In Stock
RS PRO 10 kΩ Carbon Film Resistor 0.5 W 5 %
  • RS Stock No. 707-8300
Subtotal (1 pack of 10 units)
SGD2.54(exc. GST)
SGD0.254/unit
In Stock
RS PRO, 1.5 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 131-1303
Subtotal (1 unit)
SGD18.31(exc. GST)
SGD18.31/unit
Last RS stock
TE Connectivity 51 kΩ Metal Film Resistor 0.6 W 1 % LR1F51K
  • RS Stock No. 148-900
  • Mfr. Part No. LR1F51K
Subtotal (1 pack of 10 units)
SGD0.39(exc. GST)
SGD0.039/unit
In Stock
Vishay 157 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Servo Mount, 157S103MB9002
  • RS Stock No. 173-580
  • Mfr. Part No. 157S103MB9002
Subtotal (1 unit)
SGD115.65(exc. GST)
SGD115.65/unit
Last RS stock
TE Connectivity 3.3 kΩ Metal Oxide Resistor 3 W 5 % ROX3SJ3K3
  • RS Stock No. 214-2825
  • Mfr. Part No. ROX3SJ3K3
Subtotal (1 pack of 10 units)
SGD3.34(exc. GST)
SGD0.334/unit
Last RS stock
NDK 20 MHz Crystal Unit ±15 ppm Surface Mount 4-Pin 0.55 mm 3.2 mm 2.5mm
  • RS Stock No. 184-7987
  • Mfr. Part No. NX3225SA-20.000M-STD-CRS-2
Subtotal (1 pack of 5 units)
SGD8.32(exc. GST)
SGD1.664/unit
In Stock
RS PRO Ferrite Ring Round Solid Ring 28.57 mm, For: EMI Suppression 13.77 mm ID 28.5 mm OD
  • RS Stock No. 239-062
Subtotal (1 pack of 6 units)
SGD62.418(exc. GST)
SGD10.403/unit
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