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

160835 Products showing for Passive Components

Sort By
1165 of 999+
Last RS stock
TE Connectivity CRGH 15 Ω, 1206 Thick Film Surface Mount Resistor ±5 % Surface 0.5 W - CRGH1206J15R
  • RS Stock No. 807-1136
  • Mfr. Part No. CRGH1206J15R
Subtotal (1 bag of 100 units)
SGD5.10(exc. GST)
SGD0.051/unit
In Stock
Panasonic ERJ3R 100 mΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJ3RSFR10V
  • RS Stock No. 722-0848
  • Mfr. Part No. ERJ3RSFR10V
Subtotal (1 pack of 5 units)
SGD1.50(exc. GST)
SGD0.30/unit
In Stock
TDK B32926C Film Capacitor 8.2 μF 305V ac 305 V dc, Through Hole 2
  • RS Stock No. 172-6028
  • Mfr. Part No. B32926C3825M000
Subtotal (1 bag of 160 units)
SGD722.08(exc. GST)
SGD4.513/unit
Last RS stock
Vishay 47 Ω Metal Film Resistor 0.5 W 5 % SFR16S0004709JA500
  • RS Stock No. 165-0044
  • Mfr. Part No. SFR16S0004709JA500
Subtotal (1 pack of 50 units)
SGD4.25(exc. GST)
SGD0.085/unit
Last RS stock
Panasonic, V Surge Absorber 360 pF 50 A, Clamping 775 V, Varistor 470 V
  • RS Stock No. 785-8913
  • Mfr. Part No. ERZE11A471
Subtotal (1 pack of 25 units)
SGD6.125(exc. GST)
SGD0.245/unit
Temporarily out of stock
Abracon Ceramic Resonator, 20 MHz 10 pF, 3-Pin Surface Mount 1.2 mm 2mm, 2.5 mm
  • RS Stock No. 240-3624
  • Mfr. Part No. AWSCR-20.00CW-T
Subtotal (1 reel of 3000 units)
SGD1,275.00(exc. GST)
SGD0.425/unit
In Stock
Wurth Elektronik Ferrite Bead 0.5 mm (Surface) (0402) (EMI Suppression), 120 Ω impedance at 100 MHz
  • RS Stock No. 669-3973P
  • Mfr. Part No. 74279271
Subtotal 10 units (supplied on a continuous strip)
SGD2.49(exc. GST)
SGD0.249/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 10V dc, ±20 %, Surface
  • RS Stock No. 170-6135
  • Mfr. Part No. ZRB15XR61A475ME01D
Subtotal (1 reel of 8000 units)
SGD432.00(exc. GST)
SGD0.054/unit
Currently unavailable
Rubycon 470 μF Capacitor 16V dc, Radial, Through Hole - 16YXG470MEFCT810X12.5
  • RS Stock No. 172-7956
  • Mfr. Part No. 16YXG470MEFCT810X12.5
Subtotal (1 tape of 500 units)
SGD146.50(exc. GST)
SGD0.293/unit
In Stock
Wurth Elektronik 47 μF Capacitor 35V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 840-0401
  • Mfr. Part No. 860080573003
Subtotal (1 bag of 25 units)
SGD5.00(exc. GST)
SGD0.20/unit
Temporarily out of stock
Murata Ferrite Bead 0.85 mm (Surface) (0805) (Chip Bead), 1000 Ω impedance at 100 MHz
  • RS Stock No. 122-5326
  • Mfr. Part No. BLM21AG102SH1D
Subtotal (1 reel of 4000 units)
SGD264.00(exc. GST)
SGD0.066/unit
In Stock
Bourns CR1206 20 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W
  • RS Stock No. 740-9094P
  • Mfr. Part No. CR1206-FX-2002ELF
Subtotal 50 units (supplied on a continuous strip)
SGD1.45(exc. GST)
SGD0.029/unit
In Stock
Vishay 100 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 272-7884
  • Mfr. Part No. VJ0603Y104KXAAC
Subtotal (1 tape of 50 units)
SGD9.25(exc. GST)
SGD0.185/unit
Temporarily out of stock
Vishay CRCW 510 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - CRCW0402510RFKED
  • RS Stock No. 168-8472
  • Mfr. Part No. CRCW0402510RFKED
Subtotal (1 reel of 10000 units)
SGD130.00(exc. GST)
SGD0.013/unit
Temporarily out of stock
Yageo RC_L 100 Ω, 2512 Thick Film Surface Mount Resistor ±5 % 2 W - RC2512JK-07100RL
  • RS Stock No. 198-8548
  • Mfr. Part No. RC2512JK-07100RL
Subtotal (1 reel of 4000 units)
SGD208.00(exc. GST)
SGD0.052/unit
Temporarily out of stock
TDK, SIMID, 2220 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 33 μH ±10 % 840 mA Idc Q:15
  • RS Stock No. 212-5999
  • Mfr. Part No. B82442T1333K000
Subtotal (1 reel of 1500 units)
SGD1,171.50(exc. GST)
SGD0.781/unit
Currently unavailable
TE Connectivity CPF 27 kΩ, 0603 Thin Film ±0.1 % 0.06 W - CPF0603B27KE
  • RS Stock No. 666-2159P
  • Mfr. Part No. CPF0603B27KE
Subtotal 5 units (supplied on a continuous strip)
SGD2.16(exc. GST)
SGD0.432/unit
In Stock
Arcol 300 mΩ Non-Inductive Film Fixed Resistor 50 W 5 % AP851 R3 J
  • RS Stock No. 166-4581
  • Mfr. Part No. AP851 R3 J
Subtotal (1 tray of 50 units)
SGD450.45(exc. GST)
SGD9.009/unit
In Stock
Murata 22 pF Multilayer Ceramic Capacitor, 250V dc, ±5 %, Surface
  • RS Stock No. 820-2759P
  • Mfr. Part No. GRM21A5C2E220JW01D
Subtotal 50 units (supplied on a continuous strip)
SGD5.65(exc. GST)
SGD0.113/unit
In Stock
Vishay 100 μF MnO2 Tantalum Capacitor 10V dc, Surface, TR3 Series
  • RS Stock No. 684-5199
  • Mfr. Part No. TR3D107K010C0150
Subtotal (1 pack of 5 units)
SGD12.55(exc. GST)
SGD2.51/unit
1
1165
8042
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