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.

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163511 Products showing for Passive Components

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In Stock
Vishay CRCW 33 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW060333R0FKEA
  • RS Stock No. 679-0239
  • Mfr. Part No. CRCW060333R0FKEA
Subtotal (1 pack of 50 units)
SGD1.40(exc. GST)
SGD0.028/unit
In Stock
RS PRO 85 dB Surface Continuous Internal Magnetic Buzzer Component 6.5 mm 8 V dc Min 12.8 mm 12.8mm 15V dc Max
  • RS Stock No. 171-0849
Subtotal (1 tube of 50 units)
SGD248.50(exc. GST)
SGD4.97/unit
Temporarily out of stock
IQD, 48MHz Crystal Clock Oscillator Crystal Oscillator CMOS, 4-Pin Ceramic package LFSPXO018043
  • RS Stock No. 722-926
  • Mfr. Part No. LFSPXO018043
Subtotal (1 reel of 1000 units)
SGD2,121.00(exc. GST)
SGD2.121/unit
In Stock
Nichicon 12000 μF Capacitor 450V dc, Screw - LQR2W123MSEJ Screw
  • RS Stock No. 714-8837
  • Mfr. Part No. LQR2W123MSEJ
Subtotal (1 unit)
SGD522.99(exc. GST)
SGD522.99/unit
Being discontinued
TDK Thermistor, PTC Type 2.6 Ω 29.5 mm 26 mm 5 mm
  • RS Stock No. 191-1765P
  • Mfr. Part No. B59810C0120A070
Subtotal 1 unit (supplied in a bag)
SGD11.66(exc. GST)
SGD11.66/unit
In Stock
TDK 100 nF Multilayer Ceramic Capacitor, 100V dc, ±10 %, Surface
  • RS Stock No. 903-8805
  • Mfr. Part No. CGA5L2X7R2A104K160AA
Subtotal (1 pack of 50 units)
SGD8.35(exc. GST)
SGD0.167/unit
Currently unavailable
Alps Alpine RK11K 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole, RK11K1140A3L
  • RS Stock No. 154-8178
  • Mfr. Part No. RK11K1140A3L
Subtotal (1 bag of 5 units)
SGD13.78(exc. GST)
SGD2.756/unit
In Stock
Panasonic ERJ8BQ 1.6 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - ERJ8BQF1R6V
  • RS Stock No. 721-5969
  • Mfr. Part No. ERJ8BQF1R6V
Subtotal (1 pack of 5 units)
SGD1.67(exc. GST)
SGD0.334/unit
Temporarily out of stock
Nidec Components JT22 10 kΩ Rotary Potentiometer 1-Turns 1-Gang, JT22-120-C00
  • RS Stock No. 244-4020
  • Mfr. Part No. JT22-120-C00
Subtotal (1 box of 5 units)
SGD674.75(exc. GST)
SGD134.95/unit
Currently unavailable
Wurth Elektronik, WE-TI Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 6.8 μH ±20 % 3.8 A Idc
  • RS Stock No. 432-4372
  • Mfr. Part No. 744772068
Subtotal (1 pack of 10 units)
SGD12.83(exc. GST)
SGD1.283/unit
In Stock
Murata 47 μF Multilayer Ceramic Capacitor, 6.3V dc, 20 %, Surface
  • RS Stock No. 247-8083
  • Mfr. Part No. GRM219R60J476ME44D
Subtotal (1 tape of 10 units)
SGD2.57(exc. GST)
SGD0.257/unit
In Stock
ABB, OVR Surge Protection Device 275V Maximum Voltage Rating 80 kA Maximum Surge Current Surge Protection Device
  • RS Stock No. 175-2602
  • Mfr. Part No. 2CTB815708R2800 OVR T2 N 80-275s C QS
Subtotal (1 unit)
SGD329.05(exc. GST)
SGD329.05/unit
Temporarily out of stock
TE Connectivity 249 Ω Metal Film Resistor 0.25 W 0.1 % YR1B249RCC
  • RS Stock No. 161-6180
  • Mfr. Part No. YR1B249RCC
Subtotal (1 box of 1000 units)
SGD406.00(exc. GST)
SGD0.406/unit
In Stock
Nichicon 270 μF Aluminium Electrolytic Capacitor 450V, Surface Snap-In - LGA2W271MELA40 SMD
  • RS Stock No. 832-117P
  • Mfr. Part No. LGA2W271MELA40
Subtotal 2 units (supplied in a tray)
SGD23.04(exc. GST)
SGD11.52/unit
Temporarily out of stock
QANTEK, 24.576MHz Clock Oscillator, ±25 ppm HCMOS, 4-Pin Surface Mount QX733A24.57600B15R
  • RS Stock No. 173-4581
  • Mfr. Part No. QX733A24.57600B15R
Subtotal (1 reel of 1000 units)
SGD1,972.00(exc. GST)
SGD1.972/unit
Last RS stock
Rubycon 220 μF Capacitor 450V dc, Through Hole - 450CXW220MEFC18X50 Radial Lead
  • RS Stock No. 767-2832
  • Mfr. Part No. 450CXW220MEFC18X50
Subtotal (1 unit)
SGD21.23(exc. GST)
SGD21.23/unit
Temporarily out of stock
KEMET Polymer Base Blended with Micron Sized Magnetic Powders Shielding Sheet 120 mm x 120mm x 100 μm
  • RS Stock No. 181-5936
  • Mfr. Part No. FX5(100)-120X120T2900
Subtotal (1 unit)
SGD14.64(exc. GST)
SGD14.64/unit
In Stock
Arcol Ohmite 1 GΩ Thick Film Precision Thick Film Fixed Resistor 1 W 0.5 % SM102031007FE
  • RS Stock No. 263-4347
  • Mfr. Part No. SM102031007FE
Subtotal (1 unit)
SGD9.04(exc. GST)
SGD9.04/unit
In Stock
RS PRO, 68 Ω 100 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 131-1315
Subtotal (1 unit)
SGD18.35(exc. GST)
SGD18.35/unit
Stocked by manufacturer
Siemens, 6SE6400-3 480V 154 A Sine Wave Filter
  • RS Stock No. 287-3512
  • Mfr. Part No. 6SE6400-3TC15-4FD0
Subtotal (1 unit)
SGD2,305.09(exc. GST)
SGD2,305.09/unit
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