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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Crystals, Oscillators & Resonators
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EMI Filters & Protection
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Fixed Resistors
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Inductors
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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159063 Products showing for Passive Components

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Temporarily out of stock
TE Connectivity 100 kΩ Metal Oxide Resistor 1 W 5 % ROX1SJ100K
  • RS Stock No. 161-5173
  • Mfr. Part No. ROX1SJ100K
Subtotal (1 box of 1000 units)
SGD117.00(exc. GST)
SGD0.117/unit
In Stock
Panasonic 100 μF Capacitor 35V dc, Surface Solder 500
  • RS Stock No. 565-605P
  • Mfr. Part No. EEEFK1V101AP
Subtotal 5 units (supplied as a tape)
SGD6.44(exc. GST)
SGD1.288/unit
Currently unavailable
Wurth Elektronik 15 μH Manganese Zinc Ferrite Wirewound Surface Mount Inductor, Max SRF:10.73 MHz, 36 A Idc, 1.31 mΩ
  • RS Stock No. 168-3173
  • Mfr. Part No. 74436411500
Subtotal (1 tray of 30 units)
SGD352.26(exc. GST)
SGD11.742/unit
Temporarily out of stock
2 kΩ, Through Hole Trimmer Potentiometer, Pin 0.25 W Top Adjust Bourns, 3266
  • RS Stock No. 167-3353
  • Mfr. Part No. 3266W-1-202LF
Subtotal (1 tube of 50 units)
SGD186.85(exc. GST)
SGD3.737/unit
Currently unavailable
NIC Components 47 μF Capacitor 500V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 170-4402
  • Mfr. Part No. NRB-XS470M500V18X31.5F
Subtotal (1 bag of 50 units)
SGD196.30(exc. GST)
SGD3.926/unit
In Stock
Arcol Ohmite HS75 R47 J, 470 mΩ 75 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 309-1009
  • Mfr. Part No. HS75 R47 J
Subtotal (1 unit)
SGD20.23(exc. GST)
SGD20.23/unit
Temporarily out of stock
NDK 16 MHz Crystal ±15 ppm 4-Pin 0.55 mm 3.2 mm 2.5mm
  • RS Stock No. 753-7442
  • Mfr. Part No. NX3225SA 16MHZ AT-W-STD-CRS-2
Subtotal (1 unit)
SGD3.37(exc. GST)
SGD3.37/unit
Last RS stock
TE Connectivity 237 Ω Metal Film Resistor 0.25 W 0.1 %
  • RS Stock No. 754-8874P
  • Mfr. Part No. YR1B237RCC
Subtotal 5 units (supplied in a bag)
SGD6.03(exc. GST)
SGD1.206/unit
New product - Preorder today
TE Connectivity L001415-01 Dome WiFi Antenna with SMA Connector, ISM
  • RS Stock No. 873-476
  • Mfr. Part No. L001415-01
Subtotal (1 box of 500 units)
SGD8,182.00(exc. GST)
SGD16.364/unit
In Stock
Wurth Elektronik, WE-KI Power Inductor 18 μH 5 % Q:15
  • RS Stock No. 485-348P
  • Mfr. Part No. 744762418A
Subtotal 20 units (supplied on a continuous strip)
SGD13.16(exc. GST)
SGD0.658/unit
Limited stock
Vishay 220 pF Multilayer Ceramic Capacitor, 50V dc, ±1 %, Surface
  • RS Stock No. 272-7852P
  • Mfr. Part No. VJ0603A221FXACW1BC
Subtotal 100 units (supplied on a continuous strip)
SGD6.80(exc. GST)
SGD0.068/unit
Currently unavailable
TE Connectivity RN73 147 kΩ, 0805 Thin Film Surface Mount Resistor ±0.5 % Surface 0.1 W - RN73G2A147KDTG
  • RS Stock No. 215-4705P
  • Mfr. Part No. RN73G2A147KDTG
Subtotal 5 units (supplied on a continuous strip)
SGD1.17(exc. GST)
SGD0.234/unit
In Stock
ROHM PMR100 1 mΩ, 2512 Metal Plate Resistor ±1 % Surface 5 W
  • RS Stock No. 265-479P
  • Mfr. Part No. PMR100HZP7FV1L00
Subtotal 25 units (supplied on a continuous strip)
SGD19.70(exc. GST)
SGD0.788/unit
In Stock
Abracon, ASPI-4030S Shielded Surface Mount Inductor with a Ferrite Core, 2.2 μH Flat Wire Winding ±30 % 4.9 A Idc
  • RS Stock No. 240-0939P
  • Mfr. Part No. ASPI-4030S-2R2N-T
Subtotal 50 units (supplied on a continuous strip)
SGD17.40(exc. GST)
SGD0.348/unit
In Stock
RS PRO 220 nF Capacitor 50V dc, Through Hole Radial Lead
  • RS Stock No. 711-1390
Subtotal (1 pack of 100 units)
SGD14.30(exc. GST)
SGD0.143/unit
Last RS stock
Vishay 22 μF Tantalum Tantalum Capacitor 20V dc, Surface, TR3 Series
  • RS Stock No. 250-7769
  • Mfr. Part No. TR3B226K020C0800
Subtotal (1 tape of 10 units)
SGD16.56(exc. GST)
SGD1.656/unit
In Stock
Vishay PEP 10 kΩ, 0603 Thin Film Surface Mount Fixed Resistor ±0.1 % Surface 0.13 W - PEP0603Y1002BNTA
  • RS Stock No. 239-1464P
  • Mfr. Part No. PEP0603Y1002BNTA
Subtotal 1 unit (supplied as a tape)
SGD11.42(exc. GST)
SGD11.42/unit
In Stock
Wurth Elektronik 700 μH 4 A Common Mode Choke 0.027 Ω 250V ac
  • RS Stock No. 904-0401P
  • Mfr. Part No. 74466240007
Subtotal 1 unit (supplied in a box)
SGD6.39(exc. GST)
SGD6.39/unit
Currently unavailable
TE Connectivity 88.7 kΩ Metal Film Resistor 0.25 W 0.1 % H888K7BYA
  • RS Stock No. 701-8014
  • Mfr. Part No. H888K7BYA
Subtotal (1 pack of 5 units)
SGD11.86(exc. GST)
SGD2.372/unit
In Stock
Wurth Elektronik 15 pF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 242-1078
  • Mfr. Part No. 885012007052
Subtotal (1 reel of 4000 units)
SGD176.00(exc. GST)
SGD0.044/unit
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