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

158483 Products showing for Passive Components

Sort By
1732 of 999+
In Stock
Yageo RC 33 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W
  • RS Stock No. 199-5838P
  • Mfr. Part No. RC1206FR-0733KL
Subtotal (100 units, supplied on a continuous strip)
SGD2.30(exc. GST)
SGD0.023/unit
Temporarily out of stock
Panasonic ERJPC6 51100 Ω, Tape & Reel Thick Film Resistor Thick Film Resistor ±0.1 to 0.5 % Surface 0.25 W -
  • RS Stock No. 789-263P
  • Mfr. Part No. ERJPC6D5112V
Subtotal (10 units, supplied on a continuous strip)
SGD0.94(exc. GST)
SGD0.094/unit
Currently unavailable
KEMET C44A Film Capacitor, ±5 %, 10 μF 1.5 kV dc 630V ac, Screw
  • RS Stock No. 173-4275
  • Mfr. Part No. C44ASGP5100ZA0J
Subtotal (12 units, in bags of 12)
SGD921.924(exc. GST)
SGD76.827/unit
In Stock
Panasonic 22 μF Capacitor 400V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 921-3246
  • Mfr. Part No. EEUEE2G220
Subtotal (100 units, in bags of 100)
SGD146.00(exc. GST)
SGD1.46/unit
In Stock
Nichicon 100 μF Capacitor 450V dc, Snap-in - LGW2W101MELA25
  • RS Stock No. 846-7048
  • Mfr. Part No. LGW2W101MELA25
Subtotal (1 unit)
SGD7.24(exc. GST)
SGD7.24/unit
In Stock
RS PRO 75 dB Through Hole Continuous Internal 6.5 mm Piezo Buzzer Component 3 V dc Min 20V dc Max
  • RS Stock No. 237-956
Subtotal (1 unit)
SGD5.77(exc. GST)
SGD5.77/unit
In Stock
Yageo AC 8.2 kΩ, 0402 Thick Film Resistor ±1 % 0.06 W - AC0402FR-078K2L
  • RS Stock No. 197-7996P
  • Mfr. Part No. AC0402FR-078K2L
Subtotal (500 units, supplied on a reel)
SGD3.50(exc. GST)
SGD0.007/unit
Currently unavailable
Vishay TNPW 0.034 mΩ, 0402 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - TNPW040234K0BEED
  • RS Stock No. 262-0635P
  • Mfr. Part No. TNPW040234K0BEED
Subtotal (10 units, supplied on a continuous strip)
SGD2.78(exc. GST)
SGD0.278/unit
Temporarily out of stock
Abracon 25 MHz Crystal Unit ±10 ppm Surface Mount 4-Pin 0.8 mm 3.2 mm 2.5mm
  • RS Stock No. 187-5806
  • Mfr. Part No. ABM8-25.000MHz-D1X-T
Subtotal (1000 units, on reels of 1000)
SGD401.00(exc. GST)
SGD0.401/unit
In Stock
Bourns 3310 500 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel, 3310C-001-504L
  • RS Stock No. 167-3218
  • Mfr. Part No. 3310C-001-504L
Subtotal (50 units, in tubes of 50)
SGD169.10(exc. GST)
SGD3.382/unit
In Stock
Wurth Elektronik, WE-HCM, 4030 Shielded Surface Mount Inductor with a Ferrite Core, 25 nH ±15 % 27 A Idc
  • RS Stock No. 227-8166
  • Mfr. Part No. 744340300025
Subtotal (5 units, on tapes of 5)
SGD14.49(exc. GST)
SGD2.898/unit
Currently unavailable
Wurth Elektronik, WE-MK, 0603 Unshielded Multilayer Surface Mount Inductor with a Ceramic Core, 4.7 nH Multilayer ±0.3
  • RS Stock No. 367-4553
  • Mfr. Part No. 74478604
Subtotal (10 units, in packs of 10)
SGD7.67(exc. GST)
SGD0.767/unit
Currently unavailable
Arcol Ohmite 500 Ω, TO-252 Thick Film ±1 % 45 W - TKH45P500RFE-TR
  • RS Stock No. 210-4701P
  • Mfr. Part No. TKH45P500RFE-TR
Subtotal (5 units, supplied on a continuous strip)
SGD68.03(exc. GST)
SGD13.606/unit
Last RS stock
TE Connectivity CJP300J1K0J, 1 kΩ 300 W Wirewound Power Resistor 5 %
  • RS Stock No. 261-2378
  • Mfr. Part No. CJP300J1K0J
Subtotal (1 unit)
SGD90.62(exc. GST)
SGD90.62/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 (50 units, in packs of 50)
SGD4.25(exc. GST)
SGD0.085/unit
Temporarily out of stock
Vishay 1.1 Ω Thin Film Resistor 0.6 W 1 % MBB02070C1108FCT00
  • RS Stock No. 506-4346
  • Mfr. Part No. MBB02070C1108FCT00
Subtotal (50 units, in packs of 50)
SGD7.15(exc. GST)
SGD0.143/unit
In Stock
Wurth Elektronik 68 pF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 263-4035P
  • Mfr. Part No. 885012007081
Subtotal (100 units, supplied on a continuous strip)
SGD8.20(exc. GST)
SGD0.082/unit
Currently unavailable
Vishay, IHLP, 1212 Shielded Surface Mount Inductor with a Metal Composite Core, 470 nH ±20 % 4.81 A Idc
  • RS Stock No. 248-8097
  • Mfr. Part No. IHLP1212AZEVR47MA1
Subtotal (4000 units, on reels of 4000)
SGD2,676.00(exc. GST)
SGD0.669/unit
In Stock
Panasonic 47 μF Capacitor 6.3V dc, Surface Solder - EEEHC0J470R
  • RS Stock No. 249-1319P
  • Mfr. Part No. EEEHC0J470R
Subtotal (10 units, supplied on a continuous strip)
SGD2.89(exc. GST)
SGD0.289/unit
In Stock
Taoglas FXR.3030.52.0075X.B.dg PCB RFID Antenna with F Connector, NFC
  • RS Stock No. 691-024
  • Mfr. Part No. FXR.3030.52.0075X.B.dg
Subtotal (50 units, in bags of 50)
SGD226.50(exc. GST)
SGD4.53/unit
1
1732
7925
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