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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Antennas
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Capacitors
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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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Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
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Surge Protection Components
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Variable Resistors

163841 Products showing for Passive Components

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RS Better World
Vishay MMA 0204 100 kΩ, 0204 Thin Film Resistor 0.001 Surface 0.4 W - MMA02040E1003BB300
  • RS Stock No. 667-733P
  • Mfr. Part No. MMA02040E1003BB300
Subtotal 10 units (supplied on a continuous strip)
SGD8.96(exc. GST)
SGD0.896/unit
In Stock
Vishay WSK 10 mΩ, 2512 Metal Strip Surface Mount Resistor ±1 % 1 W
  • RS Stock No. 683-6350P
  • Mfr. Part No. WSK2512R0100FEA
Subtotal 1 unit (supplied on a continuous strip)
SGD1.95(exc. GST)
SGD1.95/unit
In Stock
KEMET 100 μF MnO2 Tantalum Capacitor 25V dc, Surface, T495 Series
  • RS Stock No. 144-7495
  • Mfr. Part No. T495X107K025ATE150
Subtotal (1 pack of 2 units)
SGD12.76(exc. GST)
SGD6.38/unit
In Stock
Yageo RC_L 2.7 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W
  • RS Stock No. 198-7736P
  • Mfr. Part No. RC0402FR-072K7L
Subtotal 100 units (supplied on a continuous strip)
SGD0.60(exc. GST)
SGD0.006/unit
Temporarily out of stock
Vishay 47 μF MnO2 Tantalum Capacitor 20V dc, Through Hole, 790D Series
  • RS Stock No. 170-8604
  • Mfr. Part No. 790D476X9020C2BE3
Subtotal (1 bag of 100 units)
SGD1,937.00(exc. GST)
SGD19.37/unit
Last RS stock
Nichicon 2200 μF Capacitor 35V dc, Radial, Through Hole - UPW1V222MHD Radial Lead
  • RS Stock No. 167-8065
  • Mfr. Part No. UPW1V222MHD
Subtotal (1 box of 50 units)
SGD96.00(exc. GST)
SGD1.92/unit
In Stock
Bourns PTV 50 kΩ Rotary Potentiometer 1-Turns 2-Gang Through Hole
  • RS Stock No. 693-0702P
  • Mfr. Part No. PTV112-4420A-B503
Subtotal 1 unit (supplied in a box)
SGD2.80(exc. GST)
SGD2.80/unit
In Stock
RS PRO 92 dB Through Hole Internal 33 mm Piezo Buzzer Component 6 V dc Min 28V dc Max
  • RS Stock No. 181-2762
Subtotal (1 unit)
SGD25.72(exc. GST)
SGD25.72/unit
Temporarily out of stock
Schaffner 39 mH 0.4 A Common Mode Choke 1.5 Ω 300V ac
  • RS Stock No. 133-6064
  • Mfr. Part No. RN212-0.4-02-39M
Subtotal (1 box of 500 units)
SGD1,270.50(exc. GST)
SGD2.541/unit
In Stock
RS PRO 470 μF Capacitor 450V dc, Snap-in
  • RS Stock No. 170-1031
Subtotal (1 box of 48 units)
SGD883.248(exc. GST)
SGD18.401/unit
Temporarily out of stock
KEMET PHE844 Film Capacitor X1, ±20 %, 470 nF 1 kV dc 440V ac, Through Hole
  • RS Stock No. 164-9608
  • Mfr. Part No. PHE844RD6470MR30L2
Subtotal (1 tray of 704 units)
SGD1,358.016(exc. GST)
SGD1.929/unit
In Stock
Nichicon 4700 μF Capacitor 50V dc, Snap-in
  • RS Stock No. 846-6944P
  • Mfr. Part No. LGU1H472MELB
Subtotal 1 unit (supplied in a box)
SGD6.32(exc. GST)
SGD6.32/unit
Temporarily out of stock
Bourns, SRN6045HA, 6045 Shielded Power Inductor with a Ferrite Core, 3.3 μH ±30 % 4 A Idc Q:20
  • RS Stock No. 247-5970P
  • Mfr. Part No. SRN6045HA-3R3Y
Subtotal 10 units (supplied on a continuous strip)
SGD5.20(exc. GST)
SGD0.52/unit
Temporarily out of stock
Wurth Elektronik Tin Plated Steel PCB Mounting Enclosure, 26.6 x 23.6 x 4 mm
  • RS Stock No. 225-8413
  • Mfr. Part No. 3672260
Subtotal (1 tray of 56 units)
SGD204.568(exc. GST)
SGD3.653/unit
Limited stock
AVX 10 μF Tantalum Tantalum Capacitor 20V dc, Surface, TAJ Series
  • RS Stock No. 136-4573
  • Mfr. Part No. TAJC106K020RNJ
Subtotal (1 bag of 20 units)
SGD8.20(exc. GST)
SGD0.41/unit
Temporarily out of stock
Bourns, GMOV Varistor 4 pF 10000 A, Clamping 875 V, Varistor 150 V dc, 200 V dc, Disc
  • RS Stock No. 186-2080
  • Mfr. Part No. GMOV-20D151K
Subtotal (1 pack of 5 units)
SGD12.84(exc. GST)
SGD2.568/unit
In Stock
Yageo RC_L 0 mΩ, 0805 Thick Film Surface Mount Resistor ±5 % 0.13 W
  • RS Stock No. 199-5753P
  • Mfr. Part No. RC0805JR-070RL
Subtotal 100 units (supplied on a continuous strip)
SGD1.30(exc. GST)
SGD0.013/unit
In Stock
Wurth Elektronik Shielding Strip of Nickel, Copper Layered Metallised Fibre, Polyurethane Foam With Tape 1 m x 5mm x 3
  • RS Stock No. 773-7153
  • Mfr. Part No. 3020503
Subtotal (1 unit)
SGD14.63(exc. GST)
SGD14.63/unit
In Stock
Bourns, GMOV Varistor 4 pF 10000 A, Clamping 875 V, Varistor 250 Vrms, 320 V dc, Disc
  • RS Stock No. 186-2060
  • Mfr. Part No. GMOV-20D251K
Subtotal (1 bag of 250 units)
SGD467.25(exc. GST)
SGD1.869/unit
Temporarily out of stock
KOA TLR3AP 4 mΩ, 2512 Metal Plate Surface Mount Resistor ±1 % 5 W - TLR3APDTE4L00F50
  • RS Stock No. 231-3686
  • Mfr. Part No. TLR3APDTE4L00F50
Subtotal (1 reel of 2000 units)
SGD1,384.00(exc. GST)
SGD0.692/unit
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