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

159037 Products showing for Passive Components

Sort By
1517 of 999+
In Stock
ROHM GMR 82 mΩ, 2010 Power Shunt Surface Mount Resistor ±1 % 4 W
  • RS Stock No. 215-9750P
  • Mfr. Part No. GMR50HJBFWR082
Subtotal 10 units (supplied on a continuous strip)
SGD17.80(exc. GST)
SGD1.78/unit
Temporarily out of stock
KOA RN73R 1.5 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - RN73R2ATTD1501B25
  • RS Stock No. 253-3219
  • Mfr. Part No. RN73R2ATTD1501B25
Subtotal (1 reel of 5000 units)
SGD415.00(exc. GST)
SGD0.083/unit
In Stock
TDK, AdvancedD Metal Oxide Varistor 550 pF 100 A, Clamping 1120 V, Varistor 680 V
  • RS Stock No. 241-6785
  • Mfr. Part No. B72220S2421K101
Subtotal (1 unit)
SGD1.84(exc. GST)
SGD1.84/unit
Last RS stock
TDK 47 μH Ferrite Leaded Inductor, Max SRF:7.5 MHz, Q:45, 450 mA Idc, 1.1 Ω Rdc, BC
  • RS Stock No. 191-0560P
  • Mfr. Part No. B78108S1473J000
Subtotal 10 units (supplied as a tape)
SGD2.47(exc. GST)
SGD0.247/unit
Temporarily out of stock
Panasonic, ETQP4M, 0840 Surface Mount Inductor with a Metal Composite Core, 10 μH Integral Construction ±20/±10 % 5.6 A
  • RS Stock No. 122-0425
  • Mfr. Part No. ETQP4M100KVK
Subtotal (1 reel of 1000 units)
SGD600.00(exc. GST)
SGD0.60/unit
In Stock
RS PRO 1 kΩ Rotary Potentiometer 10-Turns 1-Gang Bush
  • RS Stock No. 278-0313
Subtotal (1 unit)
SGD31.99(exc. GST)
SGD31.99/unit
In Stock
Abracon 16 MHz Crystal Unit ±30 ppm Surface Mount 4-Pin 0.8 mm 3.2 mm 2.5mm
  • RS Stock No. 187-6025P
  • Mfr. Part No. ABM8-16.000MHz-D4Y-T
Subtotal 10 units (supplied on a continuous strip)
SGD5.09(exc. GST)
SGD0.509/unit
In Stock
TDK 2.7 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 179-4842
  • Mfr. Part No. CGA3E2NP01H272J080AA
Subtotal (1 reel of 4000 units)
SGD228.00(exc. GST)
SGD0.057/unit
Temporarily out of stock
TDK, AdvancedD Metal Oxide Varistor 110 pF 10 A, Clamping 710 V, Varistor 430 V
  • RS Stock No. 241-6736
  • Mfr. Part No. B72207S2271K101
Subtotal (1 bag of 1000 units)
SGD250.00(exc. GST)
SGD0.25/unit
In Stock
QANTEK, 8MHz XO Oscillator, ±50 ppm HCMOS, 14-Pin DIP-14 QX14T50B8.000000B50TT
  • RS Stock No. 796-0498
  • Mfr. Part No. QX14T50B8.000000B50TT
Subtotal (1 unit)
SGD3.31(exc. GST)
SGD3.31/unit
Temporarily out of stock
ROHM SDR 1 kΩ, 0603 Thick Film Surface Mount Fixed Resistor 1 % 0.3 W - SDR03EZPF1001
  • RS Stock No. 261-9897
  • Mfr. Part No. SDR03EZPF1001
Subtotal (1 reel of 5000 units)
SGD160.00(exc. GST)
SGD0.032/unit
In Stock
AKER, 16MHz XO Oscillator, ±50 ppm CMOS, 4-Pin Surface Mount
  • RS Stock No. 671-9788
  • Mfr. Part No. S23305-16.000-X
Subtotal (1 unit)
SGD4.42(exc. GST)
SGD4.42/unit
In Stock
TE Connectivity 220 Ω Power Film Resistor 3 W 5 % ER74220RJT
  • RS Stock No. 164-7545
  • Mfr. Part No. ER74220RJT
Subtotal (1 box of 1000 units)
SGD889.00(exc. GST)
SGD0.889/unit
Temporarily out of stock
Isabellenhutte BVT 2 mΩ, 2512 Zeranin Surface Mount Resistor ±1 % 3 W - BVT-V-R002-1.0
  • RS Stock No. 193-0042
  • Mfr. Part No. BVT-V-R002-1.0
Subtotal (1 tape of 10 units)
SGD24.52(exc. GST)
SGD2.452/unit
Last RS stock
MERCURY 25 MHz Crystal ±30 ppm HC-49 2-Pin 4 mm 11.2 mm 4.5mm
  • RS Stock No. 672-0387P
  • Mfr. Part No. M49-25.000-18-30/50/4085
Subtotal 5 units (supplied as a tape)
SGD4.20(exc. GST)
SGD0.84/unit
Temporarily out of stock
Vishay MMA0204 2.4 kΩ, 0204 Thin Film Surface Mount Resistor ±0.1 % 0.25 W - MMA02040E2401BB100
  • RS Stock No. 180-4100
  • Mfr. Part No. MMA02040E2401BB100
Subtotal (1 reel of 3000 units)
SGD1,848.00(exc. GST)
SGD0.616/unit
In Stock
Murata 22 nF Multilayer Ceramic Capacitor, 16V dc, ±10 %, Surface
  • RS Stock No. 247-8005
  • Mfr. Part No. GRM155R71C223KA01D
Subtotal (1 tape of 200 units)
SGD1.20(exc. GST)
SGD0.006/unit
Temporarily out of stock
TE Connectivity 470 Ω Metal Oxide Resistor 3 W 5 % ROX3SJ470R
  • RS Stock No. 161-6221
  • Mfr. Part No. ROX3SJ470R
Subtotal (1 box of 1000 units)
SGD171.00(exc. GST)
SGD0.171/unit
Temporarily out of stock
Wurth Elektronik 4W620 Openable Flat Cable Ferrite, 26 max. wires, Split Flat Core 2 mm 34 mm
  • RS Stock No. 260-6593
  • Mfr. Part No. 74272590
Subtotal (1 unit)
SGD14.00(exc. GST)
SGD14.00/unit
In Stock
TDK Thermistor, NTC Type 7 Ω 7 mm 15 mm 7 mm
  • RS Stock No. 216-1466P
  • Mfr. Part No. B57237S0709M000
Subtotal 1 unit (supplied in a bag)
SGD1.36(exc. GST)
SGD1.36/unit
1
1517
7952
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