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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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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Surge Protection Components
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164337 Products showing for Passive Components

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Yageo 1 kΩ Metal Film Metal Film Fixed Resistor 0.5 W 1 %
  • RS Stock No. 199-7672
  • Mfr. Part No. MFR50SFTE52-1K
Subtotal (1 box of 5000 units)
HK$625.00
HK$0.125/unit
Temporarily out of stock
2 mΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Nidec Components, ST4
  • RS Stock No. 244-4409
  • Mfr. Part No. ST-4ETA204
Subtotal (1 tape of 5 units)
HK$60.50
HK$12.10/unit
In Stock
Vishay RH02510R00FE02, 10 Ω 25 W Wirewound Chassis Mount Resistor ±1 %
  • RS Stock No. 845-9728
  • Mfr. Part No. RH02510R00FE02
Subtotal (1 unit)
HK$78.60
HK$78.60/unit
In Stock
ROHM MCR 100 kΩ, 0402 Thick Film Surface Mount Resistor ±1 % Surface 0.06 W - MCR01MZPF1003
  • RS Stock No. 901-3493
  • Mfr. Part No. MCR01MZPF1003
Subtotal (1 bag of 100 units)
HK$5.90
HK$0.059/unit
Last RS stock
TDK 68 pF Multilayer Ceramic Capacitor, 50V, ±5 % Radial
  • RS Stock No. 194-0466
  • Mfr. Part No. FG28C0G1H680JNT00
Subtotal (1 pack of 10 units)
HK$7.00
HK$0.70/unit
In Stock
Vishay CRCW 47 Ω, 1206 Thick Film Surface Mount Resistor ±1 % 0.25 W - CRCW120647R0FKEA
  • RS Stock No. 679-2168
  • Mfr. Part No. CRCW120647R0FKEA
Subtotal (1 pack of 50 units)
HK$12.60
HK$0.252/unit
In Stock
Yageo 150 Ω Cement Through Hole Fixed Resistor 5 W 5 %
  • RS Stock No. 199-1720
  • Mfr. Part No. SQP500JB-150R
Subtotal (1 pack of 5 units)
HK$26.90
HK$5.38/unit
In Stock
TDK Single Layer Ceramic Capacitor 47 pF 1kV dc ±5 %, CC45, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 262-1893
  • Mfr. Part No. CC45SL3AD470JYVNA
Subtotal (1 tape of 20 units)
HK$21.20
HK$1.06/unit
In Stock
Nichicon 470 μF Capacitor 450V dc, Snap-in - LGU2W471MELC
  • RS Stock No. 490-9406
  • Mfr. Part No. LGU2W471MELC
Subtotal (1 unit)
HK$80.60
HK$80.60/unit
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Sifam 17.62 mm Knob Diameter Black Potentiometer Knob Cap for 6 mm Shaft Axial, C210-BLK
  • RS Stock No. 225-956
  • Mfr. Part No. C210-BLK
Subtotal (1 pack of 10 units)
HK$25.40
HK$2.54/unit
In Stock
Panasonic 680 μF Capacitor 63V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 923-2849
  • Mfr. Part No. EEUFR1J681L
Subtotal (1 bag of 100 units)
HK$827.50
HK$8.275/unit
In Stock
TDK 1 μF Multilayer Ceramic Capacitor, 50V dc, +10 %, Through Hole Radial
  • RS Stock No. 194-0550
  • Mfr. Part No. FG28X5R1H105KRT00
Subtotal (1 pack of 10 units)
HK$14.80
HK$1.48/unit
In Stock
Yageo 2.2 kΩ Metal Film Metal Film Fixed Resistor 0.6 W 1 % MF0207FTE52-2K2
  • RS Stock No. 199-7647
  • Mfr. Part No. MF0207FTE52-2K2
Subtotal (1 tape of 100 units)
HK$22.00
HK$0.22/unit
In Stock
Panasonic 33 μF Capacitor 350V dc, Radial - EEUEE2V330 Radial Lead
  • RS Stock No. 699-7509
  • Mfr. Part No. EEUEE2V330
Subtotal (1 pack of 5 units)
HK$76.00
HK$15.20/unit
In Stock
Vishay Thermistor, NTC Type 5 kΩ 9 mm 3.3 mm 3 mm
  • RS Stock No. 754-6641
  • Mfr. Part No. NTCLE100E3502GB0
Subtotal (1 pack of 5 units)
HK$30.90
HK$6.18/unit
In Stock
Siretta OSCAR40/5M/LL/SMAM/S/S/33 Whip Multi-Band Antenna with SMA Male Connector, 698 MHz, 5.85 GHz, ZigBee, IEEE
  • RS Stock No. 124-8868
  • Mfr. Part No. OSCAR40/5M/LL/SMAM/S/S/33
Subtotal (1 unit)
HK$455.60
HK$455.60/unit
In Stock
Siretta OSCAR40/10M/LL/SMAM/S/S/33 Whip Multi-Band Antenna with SMA Male Connector, 698 MHz, 5.85 GHz, 5G, 2G
  • RS Stock No. 124-8869
  • Mfr. Part No. OSCAR40/10M/LL/SMAM/S/S/33
Subtotal (1 unit)
HK$447.20
HK$447.20/unit
In Stock
RS PRO 95 dB Panel Mount Continuous Internal 24.5 mm Piezo Buzzer Component 41 mm 1.5 V dc Min 28V dc Max
  • RS Stock No. 171-0845
Subtotal (1 tray of 100 units)
HK$4,043.60
HK$40.436/unit
In Stock
Panasonic 4.7 μF Capacitor 50V dc, Radial Radial Lead
  • RS Stock No. 920-3223
  • Mfr. Part No. EEAGA1H4R7
Subtotal (1 bag of 200 units)
HK$180.80
HK$0.904/unit
Temporarily out of stock
Murata 3.9 pF Multilayer Ceramic Capacitor, 50V dc, 0.1 pF, Surface
  • RS Stock No. 185-1552
  • Mfr. Part No. GRM0335C1H3R9BA01D
Subtotal (1 reel of 15000 units)
HK$360.00
HK$0.024/unit
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