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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163936 Products showing for Passive Components

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Vishay NTC Thermistor, NTC Type 100 kΩ 3.75 mm 54.5 mm 1.8 mm
  • RS Stock No. 179-3930
  • Mfr. Part No. NTCLG100E2104JB
Subtotal (1 bag of 20 units)
SGD15.98(exc. GST)
SGD0.799/unit
Currently unavailable
Wurth Elektronik, WE-CHSA, 1212 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 3.6 μH ±20 % 12.2 A Idc
  • RS Stock No. 248-8201P
  • Mfr. Part No. 78433290360
Subtotal 1 unit (supplied on a continuous strip)
SGD5.52(exc. GST)
SGD5.52/unit
In Stock
TE Connectivity 1.62 kΩ Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 701-7452
  • Mfr. Part No. H81K62BYA
Subtotal (1 pack of 5 units)
SGD12.00(exc. GST)
SGD2.40/unit
Temporarily out of stock
Bourns, CAY16 10 kΩ 1 % ISOL Resistor Array, 4 Resistors, 0.25 W total, 1206, Convex
  • RS Stock No. 167-4515
  • Mfr. Part No. CAY16-1002F4LF
Subtotal (1 reel of 5000 units)
SGD155.00(exc. GST)
SGD0.031/unit
Temporarily out of stock
KOA RN73 100 kΩ, 0805 Metal Film Surface Mount Resistor ±0.1 % 0.13 W - RN73R2ATTD1003B25
  • RS Stock No. 205-0505
  • Mfr. Part No. RN73R2ATTD1003B25
Subtotal (1 tape of 50 units)
SGD9.50(exc. GST)
SGD0.19/unit
Last RS stock
MERCURY 25MHz Temperature Compensated Crystal Oscillator Clipped Sinewave ±2.5 ppm VM53S
  • RS Stock No. 672-0797P
  • Mfr. Part No. VM53S3-25.000-2.5/-30+75
Subtotal 1 unit (supplied as a tape)
SGD20.63(exc. GST)
SGD20.63/unit
Temporarily out of stock
TDK B32656S Film Capacitor 1.5 μF 850V ac 850 V dc, Tab 2
  • RS Stock No. 172-6041
  • Mfr. Part No. B32656S8155J561
Subtotal (1 box of 32 units)
SGD429.66(exc. GST)
SGD13.427/unit
Temporarily out of stock
Panasonic Thermistor, NTC Type 15 kΩ, 0603 800 μm 1.6 mm 800 μm
  • RS Stock No. 763-4672
  • Mfr. Part No. ERTJ1VR153H
Subtotal (1 pack of 25 units)
SGD3.30(exc. GST)
SGD0.132/unit
Temporarily out of stock
TDK B32913 Polypropylene Film Capacitor 330 nF 530V ac 530 V dc, Through Hole 2
  • RS Stock No. 241-6612
  • Mfr. Part No. B32913A5334M000
Subtotal (1 unit)
SGD3.63(exc. GST)
SGD3.63/unit
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Siemens, 3TX7402 Surge Suppressor Unit 150V Maximum Voltage Rating Surge Suppressor
  • RS Stock No. 213-1139
  • Mfr. Part No. 3TX7402-3S
Subtotal (1 unit)
SGD59.55(exc. GST)
SGD59.55/unit
Last RS stock
Vishay 820 Ω Metal Film Metal Film Resistor 1 W 5 %
  • RS Stock No. 251-3787P
  • Mfr. Part No. PR01000108200JR500
Subtotal 5 units (supplied on a continuous strip)
SGD1.17(exc. GST)
SGD0.234/unit
In Stock
Panasonic 100 μF Capacitor 10V dc, Surface Solder - EEEFN1A101UR 1000
  • RS Stock No. 204-3375
  • Mfr. Part No. EEEFN1A101UR
Subtotal (1 pack of 20 units)
SGD7.12(exc. GST)
SGD0.356/unit
In Stock
Murata 10 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 247-8072P
  • Mfr. Part No. GRM188R72A103KA01D
Subtotal 100 units (supplied on a continuous strip)
SGD2.70(exc. GST)
SGD0.027/unit
In Stock
Vishay 100 μF Capacitor 40V dc, Through Hole - MAL203137101E3 Axial
  • RS Stock No. 108-5383
  • Mfr. Part No. MAL203137101E3
Subtotal (1 pack of 5 units)
SGD15.40(exc. GST)
SGD3.08/unit
In Stock
Panasonic ERJ B1 50 mΩ, 1020 Thick Film Resistor ±1 % 1 W - ERJB1CFR05U
  • RS Stock No. 228-0633
  • Mfr. Part No. ERJB1CFR05U
Subtotal (1 reel of 5000 units)
SGD3,840.00(exc. GST)
SGD0.768/unit
Temporarily out of stock
TDK, EHV 600 V dc 25 kA, Through Hole 2 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 167-0452
  • Mfr. Part No. B88069X2880S102
Subtotal (1 bag of 100 units)
SGD233.90(exc. GST)
SGD2.339/unit
In Stock
Welwyn 1.5 kΩ Wirewound Resistor 3 W 5 % W21-1K5JI
  • RS Stock No. 139-3398
  • Mfr. Part No. W21-1K5JI
Subtotal (1 bag of 5 units)
SGD10.93(exc. GST)
SGD2.186/unit
In Stock
Arcol Ohmite HS10 R5 J, 500 mΩ 10 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 166-4107
  • Mfr. Part No. HS10 R5 J
Subtotal (1 bag of 100 units)
SGD462.00(exc. GST)
SGD4.62/unit
Temporarily out of stock
Bourns, SRP0310F Shielded Wirewound Surface Mount Inductor with a Metal Alloy Core, 10 μH 0.2 1.25 A Idc
  • RS Stock No. 854-336
  • Mfr. Part No. SRP0310F-100M
Subtotal (1 tape of 5 units)
SGD8.70(exc. GST)
SGD1.74/unit
In Stock
KEMET 10 μF MnO2 Tantalum Capacitor 20V dc, Surface, T491 Series
  • RS Stock No. 170-0255
  • Mfr. Part No. T491B106K020AT
Subtotal (1 reel of 2000 units)
SGD632.00(exc. GST)
SGD0.316/unit
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