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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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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Vishay, IHLP-2525CZ-11, 2525 Shielded Surface Mount Inductor with a Metal Composite Core, 22 μH ±20 % 2.9 A Idc
  • RS Stock No. 173-3712
  • Mfr. Part No. IHLP2525CZER220M11
Subtotal (1 reel of 2000 units)
SGD1,744.00(exc. GST)
SGD0.872/unit
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Abracon 32.768 kHz Crystal Unit ±30 ppm Surface Mount 4-Pin 2.5 mm 8 mm 3.8mm
  • RS Stock No. 171-2317
  • Mfr. Part No. ABS25-32.768KHZ-6-T
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SGD1,800.00(exc. GST)
SGD0.60/unit
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Epson, 156.25MHz Crystal Oscillator Crystal Oscillator, 15 x 10-6 HCSL, 6-Pin Surface Mount X1G006221000611
  • RS Stock No. 842-376
  • Mfr. Part No. X1G006221000611
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SGD89.12(exc. GST)
SGD89.12/unit
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RS PRO Uni-Directional, Surface 6 mm Microphone Condenser -47dB
  • RS Stock No. 724-3138
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SGD5.07(exc. GST)
SGD5.07/unit
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Arcol Ohmite HS100 100R J, 100 Ω 100 W Aluminium Chassis Mount Resistor ±5 %
  • RS Stock No. 188-188
  • Mfr. Part No. HS100 100R J
Subtotal (1 unit)
SGD18.74(exc. GST)
SGD18.74/unit
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Vishay 390 kΩ Thin Film Resistor 0.6 W 1 % MBB02070C3903FCT00
  • RS Stock No. 172-7887
  • Mfr. Part No. MBB02070C3903FCT00
Subtotal (1 box of 5000 units)
SGD365.00(exc. GST)
SGD0.073/unit
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Arcol Ohmite HVC 0.005 GΩ, 0402 Resistive Fixed Resistor 0.05 50 mW - HVC0402T5004JET
  • RS Stock No. 760-282
  • Mfr. Part No. HVC0402T5004JET
Subtotal (1 reel of 500 units)
SGD939.50(exc. GST)
SGD1.879/unit
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IQD 10MHz Oscillator 7.5 x 5.5 mm ±0.02 ppm HCMOS LFOCXO094144
  • RS Stock No. 566-009
  • Mfr. Part No. LFOCXO094144
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SGD68.06(exc. GST)
SGD68.06/unit
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Yageo RT 7.15 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - RT0603BRD077K15L
  • RS Stock No. 199-1618
  • Mfr. Part No. RT0603BRD077K15L
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SGD1.30(exc. GST)
SGD0.13/unit
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RS PRO 78 dB Through Hole Continuous External 7 mm Piezo Buzzer Component 1 V ac Min 30V ac Max
  • RS Stock No. 171-0842
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SGD75.50(exc. GST)
SGD1.51/unit
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TE Connectivity CJB1475J33RJ, 33 Ω 1.48 kW Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 281-9616
  • Mfr. Part No. CJB1475J33RJ
Subtotal (1 unit)
SGD707.85(exc. GST)
SGD707.85/unit
Temporarily out of stock
Epson, 100MHz Crystal Oscillator Crystal Oscillator HCSL, 6-Pin Surface Mount X1G006231000211
  • RS Stock No. 842-381
  • Mfr. Part No. X1G006231000211
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SGD313.05(exc. GST)
SGD313.05/unit
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Wurth Elektronik 3820560399 Gasket of Polyurethane Foam With Adhesive Tape 1 m x 5.6mm x 3 mm
  • RS Stock No. 748-214
  • Mfr. Part No. 3820560399
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SGD13.51(exc. GST)
SGD13.51/unit
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TDK, EHV 230 V dc 25 kA, Through Hole 3 Electrode Arrester Gas Discharge Tube
  • RS Stock No. 703-1070P
  • Mfr. Part No. B88069X8740B502
Subtotal 1 unit (supplied in a box)
SGD4.55(exc. GST)
SGD4.55/unit
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RS PRO 120 mΩ, 2010 Thin Film Surface Mount Resistor ±0.5 % 0.75 W
  • RS Stock No. 241-4942P
Subtotal 10 units (supplied on a continuous strip)
SGD5.59(exc. GST)
SGD0.559/unit
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Epson, 156.25MHz Crystal Oscillator Crystal Oscillator LVPECL, 6-Pin Surface Mount X1G006131000211
  • RS Stock No. 842-362
  • Mfr. Part No. X1G006131000211
Subtotal (1 unit)
SGD89.12(exc. GST)
SGD89.12/unit
Temporarily out of stock
Cressall HP1000-4R7-F, 4.7 Ω 1 kW Wirewound Chassis Mount Resistor ±10 %
  • RS Stock No. 161-7590
  • Mfr. Part No. HP1000-4R7-F
Subtotal (1 unit)
SGD162.67(exc. GST)
SGD162.67/unit
Being discontinued
Rubycon 470 μF Capacitor 25V dc, Through Hole - 25PK470MEFC8X11.5 Radial Lead
  • RS Stock No. 763-9425
  • Mfr. Part No. 25PK470MEFC8X11.5
Subtotal (1 pack of 10 units)
SGD3.54(exc. GST)
SGD0.354/unit
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Epson, 212.5MHz SPXO Crystal Oscillator HCSL, 6-Pin Surface Mount X1G005141060211
  • RS Stock No. 298-666
  • Mfr. Part No. X1G005141060211
Subtotal (1 unit)
SGD11.81(exc. GST)
SGD11.81/unit
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Bourns, 2049 470 V dc 20 kA, Axial 2 Electrode Gas Discharge Tube Gas Discharge Tube
  • RS Stock No. 768-7512
  • Mfr. Part No. 2049-47-BLF
Subtotal (1 pack of 10 units)
SGD10.48(exc. GST)
SGD1.048/unit
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