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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Antennas
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Capacitors
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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Rotary Encoders
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Sounder, Buzzer & Microphone Components
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Surge Protection Components
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163724 Products showing for Passive Components

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Yageo 4.7 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 198-5278
  • Mfr. Part No. AC0402KRX7R9BB472
Subtotal (1 tape of 250 units)
SGD9.75(exc. GST)
SGD0.039/unit
In Stock
Yageo 1 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 198-5323
  • Mfr. Part No. AC0603KRX7R9BB102
Subtotal (1 tape of 200 units)
SGD16.40(exc. GST)
SGD0.082/unit
Temporarily out of stock
Panasonic ERJPC6 634 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6D6340V
  • RS Stock No. 789-452
  • Mfr. Part No. ERJPC6D6340V
Subtotal (1 tape of 10 units)
SGD0.94(exc. GST)
SGD0.094/unit
In Stock
Wurth Elektronik Ferrite Ring EMI Suppression Axial Ferrite Bead 28.6 mm, For: Wrapping Cable, Coaxial Cable, Wire,
  • RS Stock No. 124-1546
  • Mfr. Part No. 7427004
Subtotal (1 pack of 10 units)
SGD17.20(exc. GST)
SGD1.72/unit
Last RS stock
TE Connectivity 150 Ω Wirewound Resistor 3 W 5 %
  • RS Stock No. 151-811P
  • Mfr. Part No. ER74150RJT
Subtotal 5 units (supplied as a tape)
SGD7.03(exc. GST)
SGD1.406/unit
Currently unavailable
Mersen, STPT23 Surge Protector 275V ac Maximum Voltage Rating 20 kA Maximum Surge Current Type 3 Arrester, Type 2
  • RS Stock No. 179-3068
  • Mfr. Part No. 83230127 / STPT23-20K275V-4PG-LFM
Subtotal (1 unit)
SGD307.01(exc. GST)
SGD307.01/unit
In Stock
Panasonic ERJU 75 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - ERJU08F7502V
  • RS Stock No. 866-2965
  • Mfr. Part No. ERJU08F7502V
Subtotal (1 bag of 100 units)
SGD11.50(exc. GST)
SGD0.115/unit
In Stock
Bourns, SRR1050A Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 33 μH ±30 % 2.5 A Idc Q:30
  • RS Stock No. 135-6064
  • Mfr. Part No. SRR1050A-330Y
Subtotal (1 pack of 10 units)
SGD12.00(exc. GST)
SGD1.20/unit
In Stock
Yageo 100 pF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 200-6451
  • Mfr. Part No. CC0603FRNPO9BN101
Subtotal (1 tape of 100 units)
SGD8.50(exc. GST)
SGD0.085/unit
In Stock
Yageo 1 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 200-6471
  • Mfr. Part No. CC0603JRNPO9BN102
Subtotal (1 tape of 200 units)
SGD7.60(exc. GST)
SGD0.038/unit
In Stock
Bourns 3680 1 mΩ Digital Display Potentiometer 10-Turns 2-Gang Panel Mount, 3683S-1-105L
  • RS Stock No. 107-0628
  • Mfr. Part No. 3683S-1-105L
Subtotal (1 unit)
SGD88.89(exc. GST)
SGD88.89/unit
Last RS stock
RS PRO 1 GΩ Thick Film Resistor 2.5 W 5 %
  • RS Stock No. 175-4065
Subtotal (1 pack of 5 units)
SGD31.23(exc. GST)
SGD6.246/unit
Last RS stock
TE Connectivity CPF 120 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W
  • RS Stock No. 666-1535P
  • Mfr. Part No. CPF0402B120KE
Subtotal 5 units (supplied on a continuous strip)
SGD2.13(exc. GST)
SGD0.426/unit
Temporarily out of stock
Schaffner, FN2090 3 A 250V ac/dc 0Hz, 400 Hz, Chassis Mount EMI Filter, Fast-On 1 Phase
  • RS Stock No. 170-4919
  • Mfr. Part No. FN2090-3-06
Subtotal (1 box of 20 units)
SGD731.48(exc. GST)
SGD36.574/unit
Temporarily out of stock
Murata 100 nF Multilayer Ceramic Capacitor, 6.3V dc, ±20 %, Surface
  • RS Stock No. 185-1852
  • Mfr. Part No. GRM033C80J104ME15D
Subtotal (1 reel of 1000 units)
SGD5.00(exc. GST)
SGD0.005/unit
In Stock
Abracon AWSCR-8.00CELB-C10-T3 Ceramic Resonator, 8 MHz 10 pF, 3-Pin Tape & Reel 1 mm 1.3mm, 3.2 mm
  • RS Stock No. 188-6679
  • Mfr. Part No. AWSCR-8.00CELB-C10-T3
Subtotal (1 pack of 20 units)
SGD10.16(exc. GST)
SGD0.508/unit
In Stock
KEMET 4.7 μF Multilayer Ceramic Capacitor, 50V, 10 %
  • RS Stock No. 188-2142
  • Mfr. Part No. C0805C475K3RACAUTO
Subtotal (1 pack of 25 units)
SGD12.125(exc. GST)
SGD0.485/unit
Temporarily out of stock
KEMET 1.8 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 146-6515
  • Mfr. Part No. C0603C182K5RACTU
Subtotal (1 reel of 4000 units)
SGD72.00(exc. GST)
SGD0.018/unit
In Stock
Abracon 16 MHz Crystal Unit ±30 ppm Surface Mount 2-Pin 4.1 mm 11.4 mm 4.7mm
  • RS Stock No. 187-6037
  • Mfr. Part No. ABLS-16.000MHZ-20-B-4-Y-T
Subtotal (1 pack of 25 units)
SGD7.325(exc. GST)
SGD0.293/unit
In Stock
TDK B32923C Film Capacitor 1 μF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 334-710
  • Mfr. Part No. B32923C3105K000
Subtotal (1 pack of 10 units)
SGD11.28(exc. GST)
SGD1.128/unit
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