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

163787 Products showing for Passive Components

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In Stock
Yageo RC_L 5.1 kΩ, 1206 Thick Film Surface Mount Resistor ±1 % 0.5 W - RC1206FR-075K1L
  • RS Stock No. 198-8429
  • Mfr. Part No. RC1206FR-075K1L
Subtotal (5000 units, on reels of 5000)
SGD55.00(exc. GST)
SGD0.011/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 10V dc, ±10 %, Surface
  • RS Stock No. 172-6484
  • Mfr. Part No. GRM188C71A475KE11D
Subtotal (4000 units, on reels of 4000)
SGD244.00(exc. GST)
SGD0.061/unit
In Stock
TE Connectivity 0.68 Ω Wirewound Fusible Resistor 5 W 5 % FWFU5WR68J
  • RS Stock No. 732-299P
  • Mfr. Part No. FWFU5WR68J
Subtotal (10 units, supplied in a box)
SGD10.95(exc. GST)
SGD1.095/unit
In Stock
TE Connectivity 10 kΩ Carbon Film, Ceramic Resistor 0.25 W 5 %
  • RS Stock No. 137-2750
  • Mfr. Part No. 1623927-4
Subtotal (250 units, in packs of 250)
SGD10.00(exc. GST)
SGD0.04/unit
Last RS stock
TE Connectivity, 50 Ω 25 W Wirewound Chassis Mount Resistor ±5 %
  • RS Stock No. 754-7130P
  • Mfr. Part No. THS2550RJ
Subtotal (1 unit, supplied in a box)
SGD8.61(exc. GST)
SGD8.61/unit
In Stock
Wurth Elektronik 7.3728 MHz Crystal ±30.00 ppm SMT 2-Pin 4.9 mm 13.4 mm 4.3mm
  • RS Stock No. 197-688
  • Mfr. Part No. 830003334
Subtotal (10 units, on tapes of 10)
SGD6.95(exc. GST)
SGD0.695/unit
In Stock
Yageo AC 1 kΩ, 0402 Thick Film Resistor ±5 % 0.06 W - AC0402JR-071KL
  • RS Stock No. 197-8004
  • Mfr. Part No. AC0402JR-071KL
Subtotal (500 units, on tapes of 500)
SGD4.00(exc. GST)
SGD0.008/unit
Temporarily out of stock
Yageo 10 nF Multilayer Ceramic Capacitor, 500V dc, ±10 %, Surface
  • RS Stock No. 199-2021
  • Mfr. Part No. CC1206KKX7RBBB103
Subtotal (3000 units, on reels of 3000)
SGD195.00(exc. GST)
SGD195.00/reel
In Stock
Yageo 33 Ω Cement Through Hole Fixed Resistor 10 W 5 %
  • RS Stock No. 199-1737
  • Mfr. Part No. SQP10AJB-33R
Subtotal (5 units, in packs of 5)
SGD7.45(exc. GST)
SGD1.49/unit
In Stock
Yageo 18 kΩ Metal Film Metal Film Fixed Resistor 0.25 W 1 % MFR-25FTE52-18K
  • RS Stock No. 199-7599
  • Mfr. Part No. MFR-25FTE52-18K
Subtotal (100 units, on tapes of 100)
SGD3.70(exc. GST)
SGD0.037/unit
Temporarily out of stock
Bourns CRL 330 mΩ, 1206 Thick Film Surface Mount Resistor ±5 % 0.25 W - CRL1206-JW-R330ELF
  • RS Stock No. 167-5164
  • Mfr. Part No. CRL1206-JW-R330ELF
Subtotal (5000 units, on reels of 5000)
SGD345.00(exc. GST)
SGD0.069/unit
In Stock
Wurth Elektronik Ferrite Bead 2.3 mm (Surface) (1812) (Bead), 100 Ω impedance at 100 MHz
  • RS Stock No. 749-8328
  • Mfr. Part No. 74279226101
Subtotal (5 units, in bags of 5)
SGD4.55(exc. GST)
SGD0.91/unit
Temporarily out of stock
Murata 11 nF Multilayer Ceramic Capacitor, 50V dc, ±5 %, Surface
  • RS Stock No. 170-6092
  • Mfr. Part No. GRM3195C1H113JA01D
Subtotal (4000 units, on reels of 4000)
SGD500.00(exc. GST)
SGD0.125/unit
Currently unavailable
KEMET Single Layer Ceramic Capacitor 3.3 nF 300V ac ±20 % Y5U Dielectric, C900, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 877-3585
  • Mfr. Part No. C947U332MZWDBA7317
Subtotal (25 units, in packs of 25)
SGD5.75(exc. GST)
SGD0.23/unit
Temporarily out of stock
TDK 1 nF Multilayer Ceramic Capacitor, 50V dc, ±10 %
  • RS Stock No. 111-0573
  • Mfr. Part No. C1608X7R1H102K080AE
Subtotal (4000 units, on reels of 4000)
SGD140.00(exc. GST)
SGD0.035/unit
Currently unavailable
Yageo RT 1 kΩ, 0805 Thin Film Surface Mount Resistor ±0.1 % 0.13 W - RT0805BRD071KL
  • RS Stock No. 198-5606
  • Mfr. Part No. RT0805BRD071KL
Subtotal (5000 units, on reels of 5000)
SGD350.00(exc. GST)
SGD0.07/unit
In Stock
TDK Single Layer Ceramic Capacitor 1000 pF 1kV dc ±10 %, CK45, Through Hole 105 °C Max Op. Temp.
  • RS Stock No. 253-2763
  • Mfr. Part No. CK45-B3AD102KYNNA
Subtotal (20 units, on tapes of 20)
SGD4.04(exc. GST)
SGD0.202/unit
In Stock
Yageo 220 nF Multilayer Ceramic Capacitor, 25V dc, ±10 %, Surface
  • RS Stock No. 199-2078
  • Mfr. Part No. CC1206KRX7R8BB224
Subtotal (50 units, on tapes of 50)
SGD6.29(exc. GST)
SGD6.29/tape
In Stock
RS PRO 22 mm Knob Diameter Silver Potentiometer Knob for 4 mm Shaft Circular
  • RS Stock No. 499-999
Subtotal (1 unit)
SGD8.10(exc. GST)
SGD8.10/unit
In Stock
Wurth Elektronik 12 MHz Crystal ±20.00 ppm SMT 4-Pin 2.5 mm 3.2 mm 2.5mm
  • RS Stock No. 197-554
  • Mfr. Part No. 830108338809
Subtotal (10 units, on tapes of 10)
SGD11.52(exc. GST)
SGD1.152/unit
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