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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Passive Components Kits
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160792 Products showing for Passive Components

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Murata 100 nF Multilayer Ceramic Capacitor, 25V dc, 10 %, Surface
  • RS Stock No. 247-7730
  • Mfr. Part No. GCJ188R71E104KA12D
Subtotal (1 reel of 4000 units)
SGD116.00(exc. GST)
SGD0.029/unit
In Stock
Wurth Elektronik, WE-CBF, 0603 Unshielded Multilayer Surface Mount Inductor with a Ferrite Core, Multilayer ±25 % 50 mA
  • RS Stock No. 367-4862P
  • Mfr. Part No. 742792693
Subtotal 10 units (supplied on a continuous strip)
SGD1.91(exc. GST)
SGD0.191/unit
Temporarily out of stock
RS PRO 15 kΩ Metal Film Resistor 1 W 0.5 %
  • RS Stock No. 174-2963
Subtotal (1 pack of 100 units)
SGD11.70(exc. GST)
SGD0.117/unit
Last RS stock
Vishay P11S 500 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 167-8876
  • Mfr. Part No. P11S1V0FLSY00504KA
Subtotal (1 box of 60 units)
SGD1,061.34(exc. GST)
SGD17.689/unit
Last RS stock
TE Connectivity 499 Ω, 1020 Thick Film Surface Mount Fixed Resistor 1 % 2 W - 3430H2F510KTE
  • RS Stock No. 274-7305
  • Mfr. Part No. 3430H2F510KTE
Subtotal (1 reel of 4000 units)
SGD740.00(exc. GST)
SGD0.185/unit
Temporarily out of stock
ROHM ESR18 510 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - ESR18EZPF5103
  • RS Stock No. 264-1837
  • Mfr. Part No. ESR18EZPF5103
Subtotal (1 reel of 5000 units)
SGD160.00(exc. GST)
SGD0.032/unit
In Stock
Bourns CR0603 10 Ω, 0603 Thick Film Resistor 5 % 100 mW - CR0603-JW-100ELF
  • RS Stock No. 247-7091
  • Mfr. Part No. CR0603-JW-100ELF
Subtotal (1 tape of 1000 units)
SGD6.00(exc. GST)
SGD0.006/unit
Temporarily out of stock
Panasonic 330 μF Polymer Capacitor 2.5V dc, Surface
  • RS Stock No. 923-0152
  • Mfr. Part No. EEFSX0E331ER
Subtotal (1 reel of 3500 units)
SGD3,458.00(exc. GST)
SGD0.988/unit
Temporarily out of stock
Bourns 1.1 μH 4 A Common Mode Choke 30 Ω
  • RS Stock No. 854-384P
  • Mfr. Part No. SRF0502-501Y
Subtotal 5 units (supplied on a continuous strip)
SGD10.34(exc. GST)
SGD2.068/unit
Temporarily out of stock
Panasonic 680 μF Tantalum Capacitor 2.5V dc, TPF Series
  • RS Stock No. 230-6354
  • Mfr. Part No. ETPF680MPH
Subtotal (1 reel of 2000 units)
SGD10,230.00(exc. GST)
SGD5.115/unit
In Stock
Murata 1.5 nF Multilayer Ceramic Capacitor, 100V dc, ±5 %, Through Hole Radial
  • RS Stock No. 150-4024
  • Mfr. Part No. RDE5C2A152J0M1H03A
Subtotal (1 pack of 25 units)
SGD7.625(exc. GST)
SGD0.305/unit
Temporarily out of stock
Panasonic 1500 μF Capacitor 25V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 240-3887
  • Mfr. Part No. EEUFR1E152B
Subtotal (1 pack of 5 units)
SGD9.52(exc. GST)
SGD1.904/unit
In Stock
Wurth Elektronik, WE-TPC, 2323 Shielded Power Inductor with a Ferrite Core, 4.2 μH ±30 % 2.5 A Idc
  • RS Stock No. 485-046P
  • Mfr. Part No. 744053004
Subtotal 1 unit (supplied on a continuous strip)
SGD14.19(exc. GST)
SGD14.19/unit
In Stock
Nichicon 470 μF Capacitor 400V dc, Snap-in - LLS2G471MELC
  • RS Stock No. 846-7209
  • Mfr. Part No. LLS2G471MELC
Subtotal (1 unit)
SGD9.02(exc. GST)
SGD9.02/unit
In Stock
Elma Potentiometer Knob Cap 14.5 mm, Green
  • RS Stock No. 243-9584
  • Mfr. Part No. 040-3065
Subtotal (1 unit)
SGD3.53(exc. GST)
SGD3.53/unit
In Stock
TDK 10 nF Multilayer Ceramic Capacitor, 630V dc, ±5 %, Surface
  • RS Stock No. 915-5386
  • Mfr. Part No. CGA5L4C0G2J103J160AA
Subtotal (1 pack of 20 units)
SGD7.58(exc. GST)
SGD0.379/unit
Currently unavailable
TE Connectivity 3503 11 kΩ, 1206 Thin Film Surface Mount Resistor ±1 % Surface 2 W - 3503G2B11KFTDF
  • RS Stock No. 252-7548
  • Mfr. Part No. 3503G2B11KFTDF
Subtotal (1 reel of 1000 units)
SGD900.00(exc. GST)
SGD0.90/unit
Currently unavailable
Epson 50 MHz Crystal Unit ±10 ppm SMT 4-Pin
  • RS Stock No. 205-3402
  • Mfr. Part No. X1E000251017512
Subtotal (1 pack of 5 units)
SGD2.35(exc. GST)
SGD0.47/unit
Temporarily out of stock
Murata Power Solutions, 8400 Surface Mount Inductor with a Ferrite Core, 2.2 mH 10 % 50 A Idc
  • RS Stock No. 279-8053P
  • Mfr. Part No. 84225C
Subtotal 5 units (supplied on a continuous strip)
SGD3.54(exc. GST)
SGD0.708/unit
Currently unavailable
ROHM ESR10 4.3 kΩ, 0805 Thick Film Resistor ±5 % 0.4 W - ESR10EZPJ432
  • RS Stock No. 262-9584
  • Mfr. Part No. ESR10EZPJ432
Subtotal (1 reel of 5000 units)
SGD125.00(exc. GST)
SGD0.025/unit
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