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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163920 Products showing for Passive Components

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Last RS stock
TE Connectivity CRGH 560 Ω, 0805 Thick Film Surface Mount Resistor ±5 % Surface 0.33 W - CRGH0805J560R
  • RS Stock No. 807-5829
  • Mfr. Part No. CRGH0805J560R
Subtotal (1 bag of 100 units)
SGD2.90(exc. GST)
SGD0.029/unit
Temporarily out of stock
Abracon 4.096 MHz Crystal ±30 ppm HC-49 3.3 mm 11.4 mm 4.7mm
  • RS Stock No. 171-0223
  • Mfr. Part No. ABLS2-4.096MHZ-D4Y-T
Subtotal (1 reel of 1000 units)
SGD279.00(exc. GST)
SGD0.279/unit
Temporarily out of stock
TE Connectivity RN73 20 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RN73C1J20KB
  • RS Stock No. 472-761
  • Mfr. Part No. RN73C1J20KB
Subtotal (1 pack of 5 units)
SGD14.59(exc. GST)
SGD2.918/unit
Temporarily out of stock
TE Connectivity 68 mΩ Thick Film Resistor 0.4 W 1 % HBA68MFZRE
  • RS Stock No. 158-200
  • Mfr. Part No. HBA68MFZRE
Subtotal (1 unit)
SGD14.44(exc. GST)
SGD14.44/unit
In Stock
Panasonic 470 μF Polymer Capacitor 2.5V dc, Surface - EEFGX0E471R
  • RS Stock No. 866-3817
  • Mfr. Part No. EEFGX0E471R
Subtotal (1 pack of 5 units)
SGD14.76(exc. GST)
SGD2.952/unit
Temporarily out of stock
KOA RN73 68 kΩ, 0603 Metal Film Surface Mount Resistor ±0.1 % 0.1 W - RN73R1JTTD6802B25
  • RS Stock No. 205-0540
  • Mfr. Part No. RN73R1JTTD6802B25
Subtotal (1 reel of 5000 units)
SGD370.00(exc. GST)
SGD0.074/unit
Temporarily out of stock
Panasonic ERJ B1 300 Ω, 1020 Thick Film Resistor ±1 % 1 W - ERJB1AF301U
  • RS Stock No. 228-0497
  • Mfr. Part No. ERJB1AF301U
Subtotal (1 reel of 5000 units)
SGD1,905.00(exc. GST)
SGD0.381/unit
Temporarily out of stock
Molex NTC Thermistor, NTC Type 10 kΩ 25 mm
  • RS Stock No. 230-2118
  • Mfr. Part No. 215272-3603
Subtotal (1 bag of 50 units)
SGD111.15(exc. GST)
SGD2.223/unit
Temporarily out of stock
TDK B32682 Film Capacitor 10 nF 300V ac 630 V dc, Through Hole 2
  • RS Stock No. 172-6273
  • Mfr. Part No. B32682A6103K000
Subtotal (1 bag of 1000 units)
SGD771.00(exc. GST)
SGD0.771/unit
Temporarily out of stock
Vishay Single Layer Ceramic Capacitor 150 pF 3kV dc ±10 % S3N Dielectric, F, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 173-1253
  • Mfr. Part No. F151K29S3NR63K7R
Subtotal (1 box of 1000 units)
SGD113.00(exc. GST)
SGD0.113/unit
Last RS stock
Vishay CRCW 301 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.06 W - CRCW0402301KFKED
  • RS Stock No. 168-8398
  • Mfr. Part No. CRCW0402301KFKED
Subtotal (1 reel of 10000 units)
SGD100.00(exc. GST)
SGD0.01/unit
Temporarily out of stock
TDK 100 μH 150 mA Common Mode Choke 1.5 Ω 80V ac
  • RS Stock No. 184-9017
  • Mfr. Part No. B82789C0104H002
Subtotal (1 reel of 2500 units)
SGD3,400.00(exc. GST)
SGD1.36/unit
Currently unavailable
KOA RN73H 10 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - RN73H1ETTP1002B25
  • RS Stock No. 178-6333
  • Mfr. Part No. RN73H1ETTP1002B25
Subtotal (1 reel of 10000 units)
SGD1,170.00(exc. GST)
SGD0.117/unit
In Stock
KEMET 3.3 μF MnO2 Tantalum Capacitor 16V dc, Surface, T491 Series
  • RS Stock No. 170-0260
  • Mfr. Part No. T491B335K016AT
Subtotal (1 reel of 2000 units)
SGD512.00(exc. GST)
SGD0.256/unit
Temporarily out of stock
Yageo RT 13 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RT0402BRD0713KL
  • RS Stock No. 199-1280
  • Mfr. Part No. RT0402BRD0713KL
Subtotal (1 reel of 10000 units)
SGD680.00(exc. GST)
SGD0.068/unit
Currently unavailable
TE Connectivity 180 Ω Metal Oxide Resistor 5 W 5 ROX5SSJ180R
  • RS Stock No. 186-9519
  • Mfr. Part No. ROX5SSJ180R
Subtotal (1 box of 500 units)
SGD159.50(exc. GST)
SGD0.319/unit
Temporarily out of stock
Wurth Elektronik, WE-PD2, 5848 Unshielded Surface Mount Inductor 2.7 μH ±20 % 4 A Idc
  • RS Stock No. 163-5045
  • Mfr. Part No. 744774027
Subtotal (1 reel of 1500 units)
SGD2,496.00(exc. GST)
SGD1.664/unit
In Stock
Wurth Elektronik 15 μF Through Hole Aluminium Polymer Capacitor, 50V dc
  • RS Stock No. 275-9386
  • Mfr. Part No. 870585773001
Subtotal (1 reel of 1500 units)
SGD1,699.50(exc. GST)
SGD1.133/unit
Last RS stock
1 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Side Adjust Vishay, TSM4
  • RS Stock No. 486-7223
  • Mfr. Part No. TSM4YJ102KB25
Subtotal (1 pack of 5 units)
SGD89.50(exc. GST)
SGD17.90/unit
Currently unavailable
Vitrohm 47 Ω Wirewound Through Hole Fixed Resistor 3 W 5 %
  • RS Stock No. 212-3628
  • Mfr. Part No. CRP300JT-73-47RAA
Subtotal (1 box of 1000 units)
SGD239.00(exc. GST)
SGD0.239/unit
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