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 be: 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 component that can gather and hold a charge in a way that is similar to how a battery functions. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates 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

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 its 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 device 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, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

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

169070 Products showing for Passive Components

Sort by
8034 of 999+
In Stock
Wurth Elektronik Contact Finger of Gold Plated Beryllium Copper Alloy With Mounting Screw 4.7 mm x 2mm x 5.7 mm
  • RS stock no. 773-4246P
  • Mfr. Part No. 331051472057
Subtotal 5 units (supplied in a bag)
R 112,15(exc. VAT)
R 22,43/unit
In Stock
Bourns Ferrite Bead 1.6 mm (Surface) (1806) (EMI Filter & Protection), 35 Ω impedance at 25 MHz, 60 Ω impedance at 100
  • RS stock no. 262-9154P
  • Mfr. Part No. MH4516-600Y
Subtotal 10 units (supplied on a continuous strip)
R 29,43(exc. VAT)
R 2,943/unit
Currently unavailable
InvenSense Omni-Directional, Surface Microphone Condenser -32dB
  • RS stock no. 218-2233P
  • Mfr. Part No. ICS-41350
Subtotal 5 units (supplied on a continuous strip)
R 158,30(exc. VAT)
R 31,66/unit
In Stock
Wurth Elektronik SMT Coupled Inductor Coupled Inductor Iron Powder Core, 15 μH
  • RS stock no. 258-5748P
  • Mfr. Part No. 7448990150
Subtotal 1 unit (supplied on a continuous strip)
R 87,70(exc. VAT)
R 87,70/unit
In Stock
Wurth Elektronik Surface Mount Multi-Turn Ratio coupled Inductor Coupled Inductor Iron Oxide Core, 33 μH
  • RS stock no. 258-5718P
  • Mfr. Part No. 744889015330
Subtotal 1 unit (supplied on a continuous strip)
R 39,65(exc. VAT)
R 39,65/unit
Currently unavailable
KEMET Ferrite Bead 0.063 mm (Tape & Reel) (Chip Bead), 19.5 Ω impedance at 25 MHz, 38 Ω impedance at 100 MHz, 54.1 Ω
  • RS stock no. 225-7839P
  • Mfr. Part No. Z1206C380BPWST
Subtotal 10 units (supplied on a continuous strip)
R 24,21(exc. VAT)
R 2,421/unit
In Stock
RS PRO 85 dB Panel Mount Continuous Internal 23.5 mm Buzzer 4 V dc Min 28V dc Max
  • RS stock no. 535-8398P
Subtotal 1 unit (supplied in a box)
R 211,55(exc. VAT)
R 211,55/unit
In Stock
Visaton 50 Ω 0.5 W Miniature Speaker 16 mm Dia., 24 mm Lead Length 3.5 mm
  • RS stock no. 716-6453P
  • Mfr. Part No. K 16 50Ohm
Subtotal 1 unit (supplied in a bag)
R 124,33(exc. VAT)
R 124,33/unit
In Stock
50 Ω STMicroelectronics Surface Balun Transformer
  • RS stock no. 878-7459P
  • Mfr. Part No. BALF-SPI-01D3
Subtotal 20 units (supplied on a continuous strip)
R 125,40(exc. VAT)
R 6,27/unit
In Stock
Murata 6 A Common Mode Choke 13 mΩ 50V
  • RS stock no. 104-8552P
  • Mfr. Part No. DLW5BTM101SQ2L
Subtotal 5 units (supplied on a continuous strip)
R 105,88(exc. VAT)
R 21,176/unit
In Stock
Vishay, VDRS - E Metal Oxide Varistor 30 pF 5 A, Clamping 1200 V, Varistor 750 V
  • RS stock no. 178-059P
  • Mfr. Part No. VDRS05C460BSE
Subtotal 5 units (supplied in a bag)
R 25,25(exc. VAT)
R 5,05/unit
In Stock
Murata, NFM31KC, Signal Filter, 50V dc, 6 A, L, Surface, Solder 3.2 mm, 1.3 mm
  • RS stock no. 216-6112P
  • Mfr. Part No. NFM31KC104R1H3L
Subtotal 5 units (supplied on a continuous strip)
R 102,06(exc. VAT)
R 20,412/unit
In Stock
TDK Ferrite Bead 0.8 mm (Surface) (0603) (Chip Bead), 2500 Ω impedance at 100 MHz
  • RS stock no. 741-3119P
  • Mfr. Part No. MMZ1608A252BTA00
Subtotal 100 units (supplied on a continuous strip)
R 78,90(exc. VAT)
R 0,789/unit
In Stock
Bourns Ferrite Bead 1.1 mm (Surface) (1206) (EMI Filter & Protection), 100 Ω impedance at 25 MHz, 300 Ω impedance at 100
  • RS stock no. 262-9152P
  • Mfr. Part No. MG3261-301Y
Subtotal 10 units (supplied on a continuous strip)
R 26,15(exc. VAT)
R 2,615/unit
In Stock
Bourns, 2027 230 V dc 25 kA, Through Hole Gas Discharge Tube Gas Discharge Tube
  • RS stock no. 690-9969P
  • Mfr. Part No. 2027-23-BLF
Subtotal 5 units (supplied on a continuous strip)
R 128,26(exc. VAT)
R 25,652/unit
In Stock
Wurth Elektronik Surface Mount Multi-Turn Ratio coupled Inductor Coupled Inductor Iron Oxide Core, 22 μH
  • RS stock no. 258-5728P
  • Mfr. Part No. 744889030220
Subtotal 1 unit (supplied on a continuous strip)
R 37,64(exc. VAT)
R 37,64/unit
In Stock
Abracon, 24MHz Crystal Oscillator Crystal Oscillator, 25 ppm CMOS, 4-Pin Surface Mount ASCODV-24.000MHZ-LR-T3
  • RS stock no. 266-438P
  • Mfr. Part No. ASCODV-24.000MHZ-LR-T3
Subtotal 5 units (supplied on a continuous strip)
R 175,88(exc. VAT)
R 35,176/unit
In Stock
Murata 100 μH 115 mA Common Mode Choke 2.1 Ω 50V
  • RS stock no. 223-5043P
  • Mfr. Part No. DLW32SH101XF2L
Subtotal 5 units (supplied on a continuous strip)
R 180,85(exc. VAT)
R 36,17/unit
In Stock
Bourns, 2027 Series 600 V 25 kA, Surface Mount Gas Discharge Tube Gas Discharge Tube
  • RS stock no. 854-299P
  • Mfr. Part No. 2027-A-60-SM-RPLF
Subtotal 5 units (supplied on a continuous strip)
R 150,57(exc. VAT)
R 30,114/unit
In Stock
Abracon, 125MHz Clock Oscillator Oscillator, 25 ppm LVDS, 6-Pin Surface Mount AX3DCF1-125.0000T3
  • RS stock no. 266-436P
  • Mfr. Part No. AX3DCF1-125.0000T3
Subtotal 1 unit (supplied on a continuous strip)
R 66,98(exc. VAT)
R 66,98/unit
1
8034
8454
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