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

160808 Products showing for Passive Components

Sort By
571 of 999+
In Stock
Vishay P11L 5 kΩ Rotary Potentiometer 1-Turns 2-Gang Panel Mount, P11L2V0FLSY00502KA
  • RS Stock No. 743-5699
  • Mfr. Part No. P11L2V0FLSY00502KA
Subtotal (1 unit)
SGD39.80(exc. GST)
SGD39.80/unit
Currently unavailable
TE Connectivity 3522 270 Ω, 2512 Thick Film Surface Mount Resistor ±5 % Surface 3 W - 3522270RJT
  • RS Stock No. 164-6186
  • Mfr. Part No. 3522270RJT
Subtotal (1 reel of 2000 units)
SGD726.00(exc. GST)
SGD0.363/unit
In Stock
Murata Power Solutions 33 μH Leaded Inductor, Max SRF:8 MHz, Q:107, 5.08 A Idc, 31.2 mΩ Rdc, 1500
  • RS Stock No. 715-7169P
  • Mfr. Part No. 15333C
Subtotal 1 unit (supplied in a box)
SGD3.54(exc. GST)
SGD3.54/unit
In Stock
RS PRO, 0201 Surface Mount Inductor with a Ceramic Core, 3.6 nH Multilayer 400 mA Idc
  • RS Stock No. 256-7585P
Subtotal 50 units (supplied on a continuous strip)
SGD0.90(exc. GST)
SGD0.018/unit
Temporarily out of stock
Wurth Elektronik, WE-LQS, 3015 Shielded Wirewound Surface Mount Inductor 47 μH Semi Shielded ±20 % 400 mA Idc
  • RS Stock No. 814-2506
  • Mfr. Part No. 74404032470
Subtotal (1 bag of 5 units)
SGD7.32(exc. GST)
SGD1.464/unit
Temporarily out of stock
Nichicon 10000 μF Capacitor 25V dc, Snap-in
  • RS Stock No. 167-1461
  • Mfr. Part No. LGU1E103MELA
Subtotal (1 bag of 250 units)
SGD726.75(exc. GST)
SGD2.907/unit
Last RS stock
KEMET 2.2 μF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 891-9797P
  • Mfr. Part No. C0805C225K3RACTU
Subtotal 50 units (supplied on a continuous strip)
SGD14.05(exc. GST)
SGD0.281/unit
Temporarily out of stock
TDK Openable, Diameter 7 mm Ferrite Clamp, Apertures: 1 22 mm 15 mm
  • RS Stock No. 170-3326
  • Mfr. Part No. ZCAT1518-0730-BK
Subtotal (1 box of 896 units)
SGD998.144(exc. GST)
SGD1.114/unit
Last RS stock
Vishay CRCW 360 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.1 W - CRCW0603360KFKEA
  • RS Stock No. 679-0254P
  • Mfr. Part No. CRCW0603360KFKEA
Subtotal 50 units (supplied on a continuous strip)
SGD1.80(exc. GST)
SGD0.036/unit
Temporarily out of stock
Yageo RC 300 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - RC1206FR-07300RL
  • RS Stock No. 199-5828
  • Mfr. Part No. RC1206FR-07300RL
Subtotal (1 reel of 5000 units)
SGD60.00(exc. GST)
SGD0.012/unit
In Stock
Wurth Elektronik WCAP-FTDB Film Capacitor, 5 %, 5 μF 500 V dc, Through Hole
  • RS Stock No. 261-0139
  • Mfr. Part No. 890484427001CS
Subtotal (1 box of 200 units)
SGD568.80(exc. GST)
SGD2.844/unit
In Stock
Bourns PWR220T-35 10 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 35 W - PWR220T-35-10R0J
  • RS Stock No. 796-2520
  • Mfr. Part No. PWR220T-35-10R0J
Subtotal (1 unit)
SGD6.59(exc. GST)
SGD6.59/unit
In Stock
Murata 51 μH 230 mA Common Mode Choke 1 Ω 50V
  • RS Stock No. 871-2054
  • Mfr. Part No. DLW43SH510XK2L
Subtotal (1 bag of 5 units)
SGD5.80(exc. GST)
SGD1.16/unit
In Stock
Panasonic ERJ1T 4.3 Ω, 2512 Thick Film Surface Mount Resistor ±1 % 1 W - ERJ1TRQF4R3U
  • RS Stock No. 721-6325
  • Mfr. Part No. ERJ1TRQF4R3U
Subtotal (1 pack of 5 units)
SGD6.06(exc. GST)
SGD1.212/unit
In Stock
Walsin Technology Corporation 100 nF Multilayer Ceramic Capacitor, 50V, ±10 %
  • RS Stock No. 176-3105
  • Mfr. Part No. 0402B104K500CT
Subtotal (1 bag of 500 units)
SGD20.50(exc. GST)
SGD0.041/unit
In Stock
Vishay CRCW 1 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW08051K00FKEA
  • RS Stock No. 679-0982
  • Mfr. Part No. CRCW08051K00FKEA
Subtotal (1 pack of 50 units)
SGD1.50(exc. GST)
SGD0.03/unit
In Stock
Yageo 75 Ω Metal Film Metal Film Fixed Resistor 0.6 W 1 % MF0207FTE52-75R
  • RS Stock No. 199-7895P
  • Mfr. Part No. MF0207FTE52-75R
Subtotal 100 units (supplied in a box)
SGD3.70(exc. GST)
SGD0.037/unit
Temporarily out of stock
Vishay MKT 1813 Film Capacitor 680 nF 200V ac 630 V dc, Through Hole 2
  • RS Stock No. 173-1452
  • Mfr. Part No. MKT1813468255
Subtotal (1 box of 1000 units)
SGD1,506.00(exc. GST)
SGD1.506/unit
In Stock
TDK 15 μF Multilayer Ceramic Capacitor, 100V dc, ±20 %, Surface
  • RS Stock No. 916-3129
  • Mfr. Part No. C5750X7S2A156M250KB
Subtotal (1 pack of 2 units)
SGD7.32(exc. GST)
SGD3.66/unit
Currently unavailable
KEMET 47 μF Surface Polymer Capacitor, 6.3V dc
  • RS Stock No. 187-7119
  • Mfr. Part No. T525B476M006ATE080
Subtotal (1 reel of 2000 units)
SGD1,408.00(exc. GST)
SGD0.704/unit
1
571
8041
Results per page

Guides & Articles

Capacitors Guide
In our comprehensive Capacitors Guide we look at MLCC's and the alternatives available
Read more
Variable Resistors Guide
Everything you need to know about variable resistors
Read more

Related links