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

161111 Products showing for Passive Components

Sort By
1712 of 999+
Currently unavailable
TE Connectivity RQ73 56.2 Ω, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.2 W
  • RS Stock No. 187-2722P
  • Mfr. Part No. RQ73C2A56R2BTDF
Subtotal (25 units, supplied on a continuous strip)
SGD25.65(exc. GST)
SGD1.026/unit
Currently unavailable
KEMET 3000 μF Capacitor 400V dc, Screw - ALS70A302KF400
  • RS Stock No. 144-3142
  • Mfr. Part No. ALS70A302KF400
Subtotal (24 units, in boxes of 24)
SGD1,491.072(exc. GST)
SGD62.128/unit
In Stock
TE Connectivity CPF 47 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W
  • RS Stock No. 701-5462P
  • Mfr. Part No. CPF0402B47KE1
Subtotal (10 units, supplied on a continuous strip)
SGD3.80(exc. GST)
SGD0.38/unit
Currently unavailable
EPCOS Varistor
  • RS Stock No. 138-9245P
  • Mfr. Part No. B72650M0350K072
Subtotal (5 units, supplied on a continuous strip)
SGD7.09(exc. GST)
SGD1.418/unit
In Stock
Bourns, SRR1240, 1240 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 15 μH ±20 % 3.5 A Idc Q:16
  • RS Stock No. 727-2211
  • Mfr. Part No. SRR1240-150M
Subtotal (5 units, in packs of 5)
SGD7.60(exc. GST)
SGD1.52/unit
In Stock
Bourns 46 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Circular, H-46-6A
  • RS Stock No. 737-7710
  • Mfr. Part No. H-46-6A
Subtotal (1 unit)
SGD42.00(exc. GST)
SGD42.00/unit
In Stock
Welwyn 220 Ω Wirewound Resistor 10.5 W 5 % W23-220RJI
  • RS Stock No. 144-2861
  • Mfr. Part No. W23-220RJI
Subtotal (50 units, in boxes of 50)
SGD192.00(exc. GST)
SGD3.84/unit
In Stock
Panasonic ERJ 15 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ3EKF15R0V
  • RS Stock No. 183-8917
  • Mfr. Part No. ERJ3EKF15R0V
Subtotal (5000 units, on reels of 5000)
SGD55.00(exc. GST)
SGD0.011/unit
Temporarily out of stock
Wurth Elektronik 1 pF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 263-3979
  • Mfr. Part No. 885012006087
Subtotal (4000 units, on reels of 4000)
SGD176.00(exc. GST)
SGD0.044/unit
In Stock
Abracon, 24MHz Clock Oscillator Crystal Oscillator HCMOS, 4-Pin Surface Mount
  • RS Stock No. 240-3608P
  • Mfr. Part No. ASV-24.000MHZ-EJ-T
Subtotal (10 units, supplied on a continuous strip)
SGD22.20(exc. GST)
SGD2.22/unit
In Stock
Vishay 470 Ω Wirewound Through Hole Fixed Resistor 17 W 5 % G27094734700JLA000
  • RS Stock No. 607-615
  • Mfr. Part No. G27094734700JLA000
Subtotal (1 unit)
SGD20.89(exc. GST)
SGD20.89/unit
Currently unavailable
TE Connectivity RQ73 2.21 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % Surface 0.2 W - RQ73C2A2K21BTDF
  • RS Stock No. 187-2972
  • Mfr. Part No. RQ73C2A2K21BTDF
Subtotal (25 units, on tapes of 25)
SGD23.375(exc. GST)
SGD0.935/unit
Temporarily out of stock
Wurth Elektronik 4.7 μF Capacitor 25V dc, Surface Solder
  • RS Stock No. 185-5711
  • Mfr. Part No. 865090468011
Subtotal (25 units, in packs of 25)
SGD9.975(exc. GST)
SGD0.399/unit
Temporarily out of stock
Icel PMB Polypropylene Capacitor, 10 %, 1.5 μF 1.2 kV dc 500V ac, Solder Lug
  • RS Stock No. 233-2455
  • Mfr. Part No. PMB2124150KSR
Subtotal (50 units, in boxes of 50)
SGD920.80(exc. GST)
SGD18.416/unit
Currently unavailable
ROHM ESR03 3.6 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ESR03EZPF3601
  • RS Stock No. 263-0947
  • Mfr. Part No. ESR03EZPF3601
Subtotal (5000 units, on reels of 5000)
SGD155.00(exc. GST)
SGD0.031/unit
Temporarily out of stock
TE Connectivity TE2000B220RJ, 220 Ω 2 kW Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 701-5872
  • Mfr. Part No. TE2000B220RJ
Subtotal (1 unit)
SGD251.94(exc. GST)
SGD251.94/unit
In Stock
TE Connectivity 3.92 kΩ Metal Film Resistor 0.25 W 0.1 % H83K92BYA
  • RS Stock No. 701-7579
  • Mfr. Part No. H83K92BYA
Subtotal (5 units, in packs of 5)
SGD9.65(exc. GST)
SGD1.93/unit
Currently unavailable
ROHM ESR18 5.1 mΩ, 1206 Thick Film Surface Mount Resistor ±5 % 0.5 W - ESR18EZPJ515
  • RS Stock No. 264-2109
  • Mfr. Part No. ESR18EZPJ515
Subtotal (100 units, on tapes of 100)
SGD9.40(exc. GST)
SGD0.094/unit
In Stock
RS PRO 1.5 Ω Carbon Film Resistor 1 W 5 %
  • RS Stock No. 739-6982
Subtotal (2000 units, in packs of 2000)
SGD78.00(exc. GST)
SGD0.039/unit
Temporarily out of stock
NIC Components 100 μF Aluminium Electrolytic Capacitor 6.3V dc, Surface Solder - NSPE-S101M6.3V6.3X6.3TR13F
  • RS Stock No. 716-7071
  • Mfr. Part No. NSPE-S101M6.3V6.3X6.3TR13F
Subtotal (5 units, in packs of 5)
SGD4.26(exc. GST)
SGD0.852/unit
1
1712
8056
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