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

160442 Products showing for Passive Components

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Being discontinued
Nichicon XK Film Capacitor 1 μF 125V ac 250 V dc, Through Hole 2
  • RS Stock No. 755-4434
  • Mfr. Part No. QXK2E105KTP
Subtotal (1 pack of 5 units)
SGD10.82(exc. GST)
SGD2.164/unit
Temporarily out of stock
Yageo RC 110 kΩ, 0805 Thick Film Surface Mount Fixed Resistor ±1 % 125 mW - RC0805FR-07110KL
  • RS Stock No. 242-6879
  • Mfr. Part No. RC0805FR-07110KL
Subtotal (1 reel of 5000 units)
SGD40.00(exc. GST)
SGD0.008/unit
Currently unavailable
Panasonic ERJ B2 7.5 kΩ, 0612 Thick Film Resistor ±1 % 0.75 W - ERJB2AF752V
  • RS Stock No. 228-0780
  • Mfr. Part No. ERJB2AF752V
Subtotal (1 reel of 5000 units)
SGD1,085.00(exc. GST)
SGD0.217/unit
Temporarily out of stock
KEMET 110 μH 30 A Common Mode Choke 0.747 mΩ 1kV
  • RS Stock No. 242-7653
  • Mfr. Part No. SCF19XV-300-1R9A003JV
Subtotal (1 unit)
SGD14.55(exc. GST)
SGD14.55/unit
In Stock
RS PRO 220 pF Mica Capacitor 500V dc ±1 % Tolerance Radial
  • RS Stock No. 495-789
Subtotal (1 pack of 5 units)
SGD50.87(exc. GST)
SGD10.174/unit
In Stock
Panasonic ERJ HP6 390 Ω, 0805 Thick Film Surface Mount Resistor ±5 % 0.5 W - ERJHP6J391V
  • RS Stock No. 228-5190
  • Mfr. Part No. ERJHP6J391V
Subtotal (1 tape of 100 units)
SGD8.60(exc. GST)
SGD0.086/unit
In Stock
TDK, B82477-G4 Shielded Wirewound Surface Mount Inductor with a Ferrite Core, 68 μH ±20 % 2.1 A Idc
  • RS Stock No. 496-1971P
  • Mfr. Part No. B82477G4683M000
Subtotal 1 unit (supplied on a continuous strip)
SGD1.62(exc. GST)
SGD1.62/unit
In Stock
Dehn, DG M TN ACI Surge Arrester 275V Maximum Voltage Rating 20 kA Maximum Surge Current Surge Arrester
  • RS Stock No. 193-6591
  • Mfr. Part No. DG M TN ACI 275 FM
Subtotal (1 unit)
SGD696.19(exc. GST)
SGD696.19/unit
Currently unavailable
Kamaya RMC 39 kΩ, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - RMC1/16K393FTP
  • RS Stock No. 120-757
  • Mfr. Part No. RMC1/16K393FTP
Subtotal (1 pack of 100 units)
SGD0.60(exc. GST)
SGD0.006/unit
In Stock
Vishay PRV6 1 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, PRV6SAABJYB25102KA
  • RS Stock No. 790-4195
  • Mfr. Part No. PRV6SAABJYB25102KA
Subtotal (1 unit)
SGD19.80(exc. GST)
SGD19.80/unit
In Stock
Wurth Elektronik WCAP-FTXH Film Capacitor, 10 %, 1 μF 310 V dc 310V ac, Through Hole
  • RS Stock No. 261-0127
  • Mfr. Part No. 890414027007CS
Subtotal (1 pack of 2 units)
SGD4.41(exc. GST)
SGD2.205/unit
In Stock
Murata 4.7 μF Multilayer Ceramic Capacitor, 50V dc, ±10 %, Surface
  • RS Stock No. 260-8847
  • Mfr. Part No. GRT21BC71H475KE13L
Subtotal (1 tape of 20 units)
SGD4.62(exc. GST)
SGD0.231/unit
In Stock
Bourns CR0805 4.99 kΩ, 0805 Thick Film Resistor 1 % 125 mW - CR0805-FX-4991ELF
  • RS Stock No. 247-7117
  • Mfr. Part No. CR0805-FX-4991ELF
Subtotal (1 tape of 1000 units)
SGD10.00(exc. GST)
SGD0.01/unit
In Stock
Panasonic ERJ8EN 2.2 mΩ, 0603 Thick Film Surface Mount Fixed Resistor ±1 % Surface 0.25 W
  • RS Stock No. 287-778P
  • Mfr. Part No. ERJ8ENF1502V
Subtotal 10 units (supplied on a continuous strip)
SGD0.74(exc. GST)
SGD0.074/unit
In Stock
Panasonic ERJ H2R 47 Ω, 0402 Thick Film Surface Mount Resistor ±1 % 0.1 W - ERJH2RF47R0X
  • RS Stock No. 228-4655
  • Mfr. Part No. ERJH2RF47R0X
Subtotal (1 tape of 100 units)
SGD9.20(exc. GST)
SGD0.092/unit
Limited stock
Panasonic E96 3650 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.1 % Surface 0.06 W - ERA2AEB3651X
  • RS Stock No. 782-750
  • Mfr. Part No. ERA2AEB3651X
Subtotal (1 tape of 10 units)
SGD0.67(exc. GST)
SGD0.067/unit
In Stock
2 mΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Side Adjust Nidec Components, CT-94
  • RS Stock No. 244-3665
  • Mfr. Part No. CT-94EX104
Subtotal (1 bag of 50 units)
SGD104.50(exc. GST)
SGD2.09/unit
Temporarily out of stock
Vishay Single Layer Ceramic Capacitor 2.2 nF 760V ac ±20 % Y5U Dielectric, SMD Y1, Surface 125 °C Max Op. Temp.
  • RS Stock No. 210-7448
  • Mfr. Part No. SMDY1222MY5UDR
Subtotal (1 reel of 500 units)
SGD675.00(exc. GST)
SGD1.35/unit
In Stock
KEMET 14.87 mH 5.5 A Common Mode Choke 65.26 mΩ 500V ac/dc
  • RS Stock No. 764-482
  • Mfr. Part No. SCT31X-055-1R1A045JH
Subtotal (1 unit)
SGD13.88(exc. GST)
SGD13.88/unit
Temporarily out of stock
Panasonic ERA 680 Ω, 0603 Thin Film Surface Mount Resistor ±0.1 % 0.1 W - ERA3AEB681V
  • RS Stock No. 743-2864
  • Mfr. Part No. ERA3AEB681V
Subtotal (1 reel of 5000 units)
SGD305.00(exc. GST)
SGD0.061/unit
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