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

169762 Products showing for Passive Components

Sort By
1849 of 999+
In Stock
Wurth Elektronik 68 μF Capacitor 450V dc, Snap-in - 861111483004
  • RS Stock No. 123-2697
  • Mfr. Part No. 861111483004
Subtotal (1 pack of 5 units)
$26.51(exc. GST)
$5.302/unit
In Stock
TDK Common Mode Choke Inductor Sample Kit, 120 pieces
  • RS Stock No. 475-639
  • Mfr. Part No. B82559X0024
Subtotal (1 unit)
$286.99(exc. GST)
$286.99/unit
Limited stock
Vishay FCHP 50 Ω, 0402 Thin Film Surface Mount Fixed Resistor ±0.1 % Surface 1 W - FCHP0402E50R0BTT1
  • RS Stock No. 240-0022
  • Mfr. Part No. FCHP0402E50R0BTT1
Subtotal (1 unit)
$2.56(exc. GST)
$2.56/unit
Currently unavailable
Bourns 6657 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Bush, 6657S-1-502
  • RS Stock No. 851-7326
  • Mfr. Part No. 6657S-1-502
Subtotal (1 unit)
$75.27(exc. GST)
$75.27/unit
Temporarily out of stock
Murata 3.3 nF Multilayer Ceramic Capacitor, 50V dc, 1 %, Surface
  • RS Stock No. 247-7851
  • Mfr. Part No. GCM1885C1H332FA16D
Subtotal (1 reel of 4000 units)
$192.00(exc. GST)
$0.048/unit
In Stock
Vishay MMB0207 12 Ω, 0207 Thin Film Surface Mount Resistor ±1 % 0.4 W - MMB02070C1209FB200
  • RS Stock No. 678-7895
  • Mfr. Part No. MMB02070C1209FB200
Subtotal (1 pack of 25 units)
$6.18(exc. GST)
$0.247/unit
In Stock
CHEMI-CON 10000 μF Capacitor 10V dc, Snap-in - EKMQ100ELL103MLN3S Radial Lead
  • RS Stock No. 144-7342
  • Mfr. Part No. EKMQ100ELL103MLN3S
Subtotal (1 pack of 5 units)
$25.08(exc. GST)
$5.016/unit
Stocked by manufacturer
Phoenix Contact, VAL Surge Protection Plug 100V dc Maximum Voltage Rating 30 A Maximum Surge Current Type 1/2 Surge
  • RS Stock No. 135-964
  • Mfr. Part No. 2801242
Subtotal (1 pack of 10 units)
$1,910.10(exc. GST)
$191.01/unit
Temporarily out of stock
Murata 100 pF Multilayer Ceramic Capacitor, 250V ac, ±10 %, Surface
  • RS Stock No. 169-2935
  • Mfr. Part No. GA342QR7GD101KW01L
Subtotal (1 reel of 2000 units)
$1,126.00(exc. GST)
$0.563/unit
In Stock
KEMET 22 μF Capacitor 100V dc, Axial, Through Hole - PEG124PB222VQL1 Axial
  • RS Stock No. 226-7025
  • Mfr. Part No. PEG124PB222VQL1
Subtotal (1 unit)
$10.38(exc. GST)
$10.38/unit
Last RS stock
Vishay 470 pF Multilayer Ceramic Capacitor, 1kV dc, 10 %, Surface
  • RS Stock No. 298-289
  • Mfr. Part No. VJ1206Y471KBGTW1HV
Subtotal (1 bag of 200 units)
$20.00(exc. GST)
$0.10/unit
Currently unavailable
RS PRO 499 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W
  • RS Stock No. 737-9182
Subtotal (1 reel of 5000 units)
$35.00(exc. GST)
$0.007/unit
In Stock
IQD, 100MHz Crystal Clock Oscillator Oscillator, ±50 ppm CMOS, 4-Pin Ceramic package LFSPXO022731
  • RS Stock No. 730-110
  • Mfr. Part No. LFSPXO022731
Subtotal (1 pack of 2 units)
$14.97(exc. GST)
$7.485/unit
Currently unavailable
Panasonic, V Surge Absorber 500 pF 50 A, Clamping 650 V, Varistor 390 V
  • RS Stock No. 720-9973
  • Mfr. Part No. ERZV14D391
Subtotal (1 pack of 5 units)
$5.49(exc. GST)
$1.098/unit
In Stock
PUI Audio 98 dBA Through Hole Continuous Internal 24 mm Piezo Buzzer Component 24 mm 3 V dc Min 16V dc Max
  • RS Stock No. 276-728
  • Mfr. Part No. AI-2429-TWT-5V-R
Subtotal (1 unit)
$3.93(exc. GST)
$3.93/unit
In Stock
Arcol Ohmite HS75 R1 J, 100 mΩ 75 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 309-0999
  • Mfr. Part No. HS75 R1 J
Subtotal (1 unit)
$20.67(exc. GST)
$20.67/unit
In Stock
Arcol Ohmite 50 Ω Non-Inductive Resistor 50 W 1 % AP851 50R F 50PPM
  • RS Stock No. 862-5736P
  • Mfr. Part No. AP851 50R F 50PPM
Subtotal 1 unit (supplied in a bag)
$14.61(exc. GST)
$14.61/unit
Last RS stock
TE Connectivity 3520 12 Ω, 2512 Thick Film Surface Mount Resistor ±5 % Surface 1 W - 352012RJT
  • RS Stock No. 224-0159
  • Mfr. Part No. 352012RJT
Subtotal (1 pack of 10 units)
$2.22(exc. GST)
$0.222/unit
Temporarily out of stock
TE Connectivity NEOHM SMA-Q 11.5 Ω, 0207 Thin Film Surface Mount Resistor 1 % Surface 1 W - SMA-Q0207FTDT11R5
  • RS Stock No. 590-432
  • Mfr. Part No. SMA-Q0207FTDT11R5
Subtotal (1 reel of 2000 units)
$376.00(exc. GST)
$0.188/unit
Last RS stock
TE Connectivity RN73 127 kΩ, 0805 Thin Film Surface Mount Resistor ±0.5 % Surface 0.1 W - RN73G2A127KDTG
  • RS Stock No. 215-4676
  • Mfr. Part No. RN73G2A127KDTG
Subtotal (1 pack of 5 units)
$1.06(exc. GST)
$0.212/unit
1
1849
8489
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