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

159981 Products showing for Passive Components

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TE Connectivity 51.1 Ω Metal Film Resistor 0.25 W 0.1 % H851R1BYA
  • RS Stock No. 161-5197
  • Mfr. Part No. H851R1BYA
Subtotal (1 box of 250 units)
SGD372.50(exc. GST)
SGD1.49/unit
In Stock
Welwyn 220 Ω Wirewound Resistor 10.5 W 5 %
  • RS Stock No. 144-3016
  • Mfr. Part No. W23-220RJI
Subtotal (1 bag of 5 units)
SGD32.23(exc. GST)
SGD6.446/unit
Temporarily out of stock
Yageo 39 Ω Metal Film Metal Film Fixed Resistor 0.5 W 1 %
  • RS Stock No. 199-7726
  • Mfr. Part No. MFR50SFTE52-39R
Subtotal (1 box of 5000 units)
SGD125.00(exc. GST)
SGD0.025/unit
In Stock
RS PRO 100 μF Capacitor 35V dc
  • RS Stock No. 276-6116
Subtotal (1 pack of 25 units)
SGD14.025(exc. GST)
SGD0.561/unit
In Stock
Yageo RC 49.9 kΩ, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 125 mW - RC0805FR-0749K9L
  • RS Stock No. 618-1313
  • Mfr. Part No. RC0805FR-0749K9L
Subtotal (1 pack of 5000 units)
SGD35.00(exc. GST)
SGD0.007/unit
Temporarily out of stock
TDK 330 nF Multilayer Ceramic Capacitor, 250V dc, ±10 %, Surface
  • RS Stock No. 111-0509
  • Mfr. Part No. C3225X7T2E334K200AA
Subtotal (1 reel of 1000 units)
SGD330.00(exc. GST)
SGD0.33/unit
In Stock
Vishay CRCW 100 Ω, 0603 Thick Film Surface Mount Resistor ±1 % Surface 0.25 W - CRCW0603100RFKEAHP
  • RS Stock No. 820-6748
  • Mfr. Part No. CRCW0603100RFKEAHP
Subtotal (1 bag of 25 units)
SGD1.45(exc. GST)
SGD0.058/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 (1 reel of 1000 units)
SGD401.00(exc. GST)
SGD0.401/unit
Temporarily out of stock
TDK YFF-AH, Power Line Filter 100V, 3216 100 nF, Surface
  • RS Stock No. 242-7618
  • Mfr. Part No. YFF31AH2A104MT0Y0N
Subtotal (1 reel of 2000 units)
SGD754.00(exc. GST)
SGD0.377/unit
In Stock
Panasonic ERA 2.2 kΩ, 0402 Thin Film Surface Mount Resistor 0.1 % 0.1 W - ERA2VEB2201X
  • RS Stock No. 241-3252
  • Mfr. Part No. ERA2VEB2201X
Subtotal (1 reel of 10000 units)
SGD2,280.00(exc. GST)
SGD0.228/unit
In Stock
RS PRO 2.2 kΩ Metal Film Resistor 1 W 0.5 %
  • RS Stock No. 174-2930
Subtotal (1 pack of 100 units)
SGD11.70(exc. GST)
SGD0.117/unit
Temporarily out of stock
Bourns, 4800P 10 kΩ 2 % ISOL Resistor Array, 8 Resistors, 1.28 W total, SOIC, Surface Mount
  • RS Stock No. 167-5174
  • Mfr. Part No. 4816P-1-103LF
Subtotal (1 reel of 2000 units)
SGD2,110.00(exc. GST)
SGD1.055/unit
In Stock
TDK, SIMID, 2220 Unshielded Wirewound Surface Mount Inductor with a Ferrite Core, 820 μH ±10 % 170 mA Idc Q:20
  • RS Stock No. 212-6040P
  • Mfr. Part No. B82442T1824K000
Subtotal 5 units (supplied on a continuous strip)
SGD7.27(exc. GST)
SGD1.454/unit
In Stock
ROHM LTR10 270 mΩ, 0508 Power Film Surface Mount Resistor 1 % 1 W - LTR10LEZPFLR270
  • RS Stock No. 259-5390
  • Mfr. Part No. LTR10LEZPFLR270
Subtotal (1 reel of 5000 units)
SGD1,255.00(exc. GST)
SGD0.251/unit
Temporarily out of stock
KOA TLR3AW 2 mΩ, 2512 Metal Plate Surface Mount Resistor ±1 % 1 W - TLR3AWDTE2L00F75
  • RS Stock No. 192-1897
  • Mfr. Part No. TLR3AWDTE2L00F75
Subtotal (1 tape of 10 units)
SGD9.99(exc. GST)
SGD0.999/unit
Temporarily out of stock
Phoenix Contact, MPB Surge Arrester
  • RS Stock No. 130-302
  • Mfr. Part No. 2748577
Subtotal (1 pack of 10 units)
SGD101.31(exc. GST)
SGD10.131/unit
Temporarily out of stock
Abracon 16.384 MHz Crystal ±20 ppm Surface Mount 4-Pin 0.5 mm 2.5 mm 2mm
  • RS Stock No. 240-3396
  • Mfr. Part No. ABM10-16.384MHZ-D30-T3
Subtotal (1 reel of 3000 units)
SGD2,907.00(exc. GST)
SGD0.969/unit
In Stock
Wurth Elektronik 172 μH Ferrite Toroidal Inductor, Max SRF:3.1 MHz, 6.5 A Idc, 55 mΩ Rdc, WE-SI
  • RS Stock No. 163-3640
  • Mfr. Part No. 744154
Subtotal (1 bag of 20 units)
SGD214.38(exc. GST)
SGD10.719/unit
Temporarily out of stock
Bourns, SRR1210, 1210 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 8.2 μH ±30 % 7.3 A Idc Q:11
  • RS Stock No. 727-2296P
  • Mfr. Part No. SRR1210-8R2Y
Subtotal 5 units (supplied on a continuous strip)
SGD8.55(exc. GST)
SGD1.71/unit
Temporarily out of stock
Yageo RC_L 30 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % 0.06 W - RC0402FR-0730KL
  • RS Stock No. 198-7750
  • Mfr. Part No. RC0402FR-0730KL
Subtotal (1 reel of 10000 units)
SGD30.00(exc. GST)
SGD0.003/unit
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