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

163895 Products showing for Passive Components

Sort By
313 of 999+
In Stock
Vishay NTC Thermistor, NTC Type 10 kΩ 2.3 mm 23 mm 6.8 mm
  • RS Stock No. 170-8666
  • Mfr. Part No. NTCAIMME3C90373
Subtotal (1 bag of 250 units)
SGD472.50(exc. GST)
SGD1.89/unit
Temporarily out of stock
Panasonic 220 μF Aluminium Polymer Capacitor 25V dc, Surface
  • RS Stock No. 210-5964
Subtotal (1 reel of 500 units)
SGD941.50(exc. GST)
SGD1.883/unit
Temporarily out of stock
Vishay 1000 μF Polymer Capacitor 2.5V, T55 Series
  • RS Stock No. 859-331
  • Mfr. Part No. T55X108M2R5C0005
Subtotal (1 unit)
SGD7.29(exc. GST)
SGD7.29/unit
In Stock
Panasonic ERJ2RK 1203 Ω, 0402 Thick Film Precision Thick Film Fixed Resistor ±1 % Surface 0.1 W - ERJ2RKF1203X
  • RS Stock No. 763-961
  • Mfr. Part No. ERJ2RKF1203X
Subtotal (1 pack of 10 units)
SGD0.14(exc. GST)
SGD0.014/unit
In Stock
TE Connectivity 2.2 Ω Metal Oxide Resistor 1 W 5 % ROX1SJ2R2
  • RS Stock No. 214-0778
  • Mfr. Part No. ROX1SJ2R2
Subtotal (1 pack of 10 units)
SGD1.12(exc. GST)
SGD0.112/unit
Temporarily out of stock
Wurth Elektronik, 744384, 5030 Shielded Surface Mount Inductor with a Magnetic Iron Alloy Core, 6.8 μH Shielded ±20 %
  • RS Stock No. 427-259
  • Mfr. Part No. 7443845030068
Subtotal (1 tape of 5 units)
SGD18.48(exc. GST)
SGD3.696/unit
In Stock
Panasonic ERJPC3 3.3 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D3301V
  • RS Stock No. 785-081P
  • Mfr. Part No. ERJPC3D3301V
Subtotal 10 units (supplied on a continuous strip)
SGD0.73(exc. GST)
SGD0.073/unit
In Stock
TE Connectivity 1.1 kΩ Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 754-8704P
  • Mfr. Part No. YR1B1K1CC
Subtotal 5 units (supplied in a bag)
SGD6.00(exc. GST)
SGD1.20/unit
Currently unavailable
Vishay 487 Ω Thin Film Resistor 0.6 W 1 % MRS25000C4870FCT00
  • RS Stock No. 683-3761
  • Mfr. Part No. MRS25000C4870FCT00
Subtotal (1 pack of 25 units)
SGD2.525(exc. GST)
SGD0.101/unit
In Stock
TE Connectivity, 50 mΩ 50 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 754-7405P
  • Mfr. Part No. THS50R05J
Subtotal 1 unit (supplied in a box)
SGD11.26(exc. GST)
SGD11.26/unit
Currently unavailable
TE Connectivity CPF 8.45 kΩ, 0805 Thin Film, Thin Film ±0.1 % Surface 0.1 W - CPF0805B8K45E1
  • RS Stock No. 146-4022
  • Mfr. Part No. CPF0805B8K45E1
Subtotal (1 tape of 20 units)
SGD7.70(exc. GST)
SGD0.385/unit
In Stock
Wurth Elektronik 1000 μF Capacitor 10V dc, Surface Solder
  • RS Stock No. 839-5729
  • Mfr. Part No. 865060257010
Subtotal (1 pack of 5 units)
SGD6.75(exc. GST)
SGD1.35/unit
Temporarily out of stock
Panasonic ERJPC6 8660 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W - ERJPC6B8661V
  • RS Stock No. 789-165
  • Mfr. Part No. ERJPC6B8661V
Subtotal (1 tape of 10 units)
SGD1.08(exc. GST)
SGD0.108/unit
In Stock
Panasonic 180 μF Polymer Capacitor 20V dc, Surface - 20SVT180M
  • RS Stock No. 210-5566
  • Mfr. Part No. 20SVT180M
Subtotal (1 tape of 2 units)
SGD6.58(exc. GST)
SGD3.29/unit
Currently unavailable
Vishay 10 kΩ Metal Film Resistor 0.13 W 2 RLR05C1002GSB14
  • RS Stock No. 830-7457
  • Mfr. Part No. RLR05C1002GSB14
Subtotal (1 unit)
SGD11.01(exc. GST)
SGD11.01/unit
Temporarily out of stock
Panasonic ERJPC3 57.6 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.5 % Surface 0.2 W - ERJPC3D5762V
  • RS Stock No. 789-043
  • Mfr. Part No. ERJPC3D5762V
Subtotal (1 tape of 10 units)
SGD0.73(exc. GST)
SGD0.073/unit
Temporarily out of stock
TE Connectivity CRGSP 2.7 MΩ, 1206 Thick Film Surface Mount Fixed Resistor 0.01 SMD 0.5 W - CRGSP1206F2M7
  • RS Stock No. 839-236
  • Mfr. Part No. CRGSP1206F2M7
Subtotal (1 reel of 5000 units)
SGD415.00(exc. GST)
SGD0.083/unit
In Stock
ROHM MCR 0 mΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.1 W
  • RS Stock No. 901-3507P
  • Mfr. Part No. MCR03EZPJ000
Subtotal 100 units (supplied on a continuous strip)
SGD1.00(exc. GST)
SGD0.01/unit
Temporarily out of stock
TDK B32355C Film Capacitor 2.5 μF 400V ac 400 V dc, Lead Wire 2
  • RS Stock No. 185-5365
  • Mfr. Part No. B32355C4255J019
Subtotal (1 box of 231 units)
SGD1,570.338(exc. GST)
SGD6.798/unit
In Stock
Panasonic ERJPC3 1.6 kΩ, 0603 Thick Film Resistor Thick Film Resistor ±0.1 % Surface 0.2 W - ERJPC3B1601V
  • RS Stock No. 789-204P
  • Mfr. Part No. ERJPC3B1601V
Subtotal 10 units (supplied on a continuous strip)
SGD0.82(exc. GST)
SGD0.082/unit
1
313
8195
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