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

169728 Products showing for Passive Components

Sort By
1229 of 999+
Temporarily out of stock
ROHM ESR03 2.2 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ2R2
  • RS Stock No. 262-9819
  • Mfr. Part No. ESR03EZPJ2R2
Subtotal (5000 units, on reels of 5000)
$125.00(exc. GST)
$0.025/unit
In Stock
Yageo RT 100 kΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.06 W - RT0402BRD07100KL
  • RS Stock No. 199-1267
  • Mfr. Part No. RT0402BRD07100KL
Subtotal (10 units, on tapes of 10)
$0.98(exc. GST)
$0.098/unit
Currently unavailable
ROHM ESR03 75 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ753
  • RS Stock No. 262-9960
  • Mfr. Part No. ESR03EZPJ753
Subtotal (5000 units, on reels of 5000)
$150.00(exc. GST)
$0.03/unit
In Stock
ROHM ESR03 51 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ510
  • RS Stock No. 262-9901
  • Mfr. Part No. ESR03EZPJ510
Subtotal (100 units, on tapes of 100)
$5.60(exc. GST)
$0.056/unit
Currently unavailable
ROHM ESR03 9.1 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ9R1
  • RS Stock No. 262-9991
  • Mfr. Part No. ESR03EZPJ9R1
Subtotal (100 units, on tapes of 100)
$5.30(exc. GST)
$0.053/unit
Temporarily out of stock
Eaton, DR, 0704 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 10 μH ±20 % 3.17 A Idc
  • RS Stock No. 169-9660
  • Mfr. Part No. DR74-100-R
Subtotal (1100 units, on reels of 1100)
$1,114.30(exc. GST)
$1.013/unit
In Stock
Panasonic 330 μF Aluminium Electrolytic Capacitor 63V dc, Radial, Through Hole - EEUFC1J331 Radial Lead
  • RS Stock No. 107-1072
  • Mfr. Part No. EEUFC1J331
Subtotal (100 units, in bags of 100)
$97.50(exc. GST)
$0.975/unit
Currently unavailable
ROHM ESR03 2 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ESR03EZPF2001
  • RS Stock No. 263-0856
  • Mfr. Part No. ESR03EZPF2001
Subtotal (100 units, on tapes of 100)
$6.80(exc. GST)
$0.068/unit
Currently unavailable
IQD 2.4576 MHz Crystal Unit ±20 ppm Bulk 2-Pin 13.49 mm 11.05 mm 4.7mm
  • RS Stock No. 735-547
  • Mfr. Part No. LFXTAL003044B
Subtotal (5 units, in packs of 5)
$11.13(exc. GST)
$2.226/unit
Temporarily out of stock
Bourns SRU6011: 6 Values Inductor Kit, 54 pieces
  • RS Stock No. 693-0727
  • Mfr. Part No. SRU60-LAB1
Subtotal (1 unit)
$47.16(exc. GST)
$47.16/unit
In Stock
ROHM MCRS Series 200 Ω, 1206 Thick Film Resistor ±1 % Surface 0.4 W - MCR18SEQPF2001
  • RS Stock No. 780-734
  • Mfr. Part No. MCR18SEQPF2001
Subtotal (500 units, on tapes of 500)
$19.00(exc. GST)
$0.038/unit
Currently unavailable
Yageo RT 47.5 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.1 W - RT0603BRD0747K5L
  • RS Stock No. 199-1548
  • Mfr. Part No. RT0603BRD0747K5L
Subtotal (5000 units, on reels of 5000)
$290.00(exc. GST)
$0.058/unit
Temporarily out of stock
ROHM ESR03 3 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ESR03EZPF3R00
  • RS Stock No. 263-0979
  • Mfr. Part No. ESR03EZPF3R00
Subtotal (5000 units, on reels of 5000)
$145.00(exc. GST)
$0.029/unit
Temporarily out of stock
Wurth Elektronik 10 mH 700 mA Common Mode Choke 0.55 Ω 250V ac
  • RS Stock No. 163-7901
  • Mfr. Part No. 7446621010
Subtotal (90 units, in boxes of 90)
$567.99(exc. GST)
$6.311/unit
Currently unavailable
ROHM ESR03 1.5 kΩ, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ152
  • RS Stock No. 263-1210
  • Mfr. Part No. ESR03EZPJ152
Subtotal (5000 units, on reels of 5000)
$150.00(exc. GST)
$0.03/unit
In Stock
Arcol Ohmite HVC 5000 kΩ, 0603 Thick Film Surface Mount Fixed Resistor 1 % 0.1 W - HVC0603T5004FET
  • RS Stock No. 263-4260
  • Mfr. Part No. HVC0603T5004FET
Subtotal (1 unit)
$2.53(exc. GST)
$2.53/unit
Temporarily out of stock
Wurth Elektronik, WE-HCI Shielded Wirewound Surface Mount Inductor 240 nH ±20 % 20 A Idc
  • RS Stock No. 485-269
  • Mfr. Part No. 744314024
Subtotal (1 unit)
$62.74(exc. GST)
$62.74/unit
Currently unavailable
ROHM ESR03 560 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.25 W - ESR03EZPF5600
  • RS Stock No. 263-1041
  • Mfr. Part No. ESR03EZPF5600
Subtotal (100 units, on tapes of 100)
$6.80(exc. GST)
$0.068/unit
Temporarily out of stock
Yageo RT 27 kΩ, 0603 Thin Film Surface Mount Resistor ±1 % 0.05 W - RT0603FRE0727KL
  • RS Stock No. 198-5507
  • Mfr. Part No. RT0603FRE0727KL
Subtotal (5000 units, on reels of 5000)
$50.00(exc. GST)
$0.01/unit
In Stock
ROHM ESR03 20 Ω, 0603 Thick Film Surface Mount Resistor ±5 % 0.25 W - ESR03EZPJ200
  • RS Stock No. 263-1290
  • Mfr. Part No. ESR03EZPJ200
Subtotal (100 units, on tapes of 100)
$5.30(exc. GST)
$0.053/unit
1
1229
8487
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