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
Variable Resistors
Variable Resistors

163342 Products showing for Passive Components

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KEMET C44U Film Capacitor, 10 %, 400 μF 1.1 kV dc, Screw
  • RS Stock No. 196-8786
  • Mfr. Part No. C44UQGT6400M85K
Subtotal (5 units, in bags of 5)
SGD569.47(exc. GST)
SGD113.894/unit
Last RS stock
Same Sky 90 dB Surface Buzzer External Magnetic Buzzer 3.2 mm 3 V Min 8.5 mm 8.5mm 5V Max
  • RS Stock No. 259-6312P
  • Mfr. Part No. CSS-J4D20-SMT-TR
Subtotal (2 units, supplied on a continuous strip)
SGD7.46(exc. GST)
SGD3.73/unit
In Stock
Panasonic E24 33200 Ω, Tape & Reel Thin-Film Technology Thin Film Resistor ±0.1 % Surface 0.1 W - ERA3APB332V
  • RS Stock No. 782-643P
  • Mfr. Part No. ERA3APB332V
Subtotal (10 units, supplied on a continuous strip)
SGD4.30(exc. GST)
SGD0.43/unit
In Stock
Vishay F340X1 Film Capacitor X1, ±20 %, 1 μF 480 V dc 480V ac, Through Hole
  • RS Stock No. 187-8239
  • Mfr. Part No. F340X151048MKP2T0
Subtotal (2 units, in packs of 2)
SGD20.65(exc. GST)
SGD10.325/unit
Temporarily out of stock
Murata 15 pF Multilayer Ceramic Capacitor, 50V dc, ±2 %, Surface
  • RS Stock No. 185-3143
  • Mfr. Part No. GJM1555C1H150GB01D
Subtotal (10000 units, on reels of 10000)
SGD240.00(exc. GST)
SGD0.024/unit
Temporarily out of stock
Murata 68 pF Multilayer Ceramic Capacitor, 25V dc, ±5 %, Surface
  • RS Stock No. 185-2000
  • Mfr. Part No. GRM0335C1E680JA01D
Subtotal (2500 units, on reels of 2500)
SGD12.50(exc. GST)
SGD0.005/unit
In Stock
KEMET 220 pF Multilayer Ceramic Capacitor, 50V dc, 1 %, Surface
  • RS Stock No. 205-3256
  • Mfr. Part No. C0603C221F5GACTU
Subtotal (4000 units, on reels of 4000)
SGD1,540.00(exc. GST)
SGD0.385/unit
In Stock
Vishay 4700 μF Electrolytic Capacitor 450V, Screw - MAL210217472E3
  • RS Stock No. 735-416
  • Mfr. Part No. MAL210217472E3
Subtotal (1 unit)
SGD308.13(exc. GST)
SGD308.13/unit
Temporarily out of stock
Yageo RC_L 4.7 kΩ, 0201 Thick Film Surface Mount Resistor ±5 % 0.05 W - RC0201JR-074K7L
  • RS Stock No. 198-7637
  • Mfr. Part No. RC0201JR-074K7L
Subtotal (10000 units, on reels of 10000)
SGD60.00(exc. GST)
SGD0.006/unit
In Stock
Bourns CR0805 100 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CR0805-FX-1003ELF
  • RS Stock No. 167-5124
  • Mfr. Part No. CR0805-FX-1003ELF
Subtotal (5000 units, on reels of 5000)
SGD35.00(exc. GST)
SGD0.007/unit
Temporarily out of stock
TDK B32523 Film Capacitor 3.3 μF 63V ac 100 V dc, Through Hole 2
  • RS Stock No. 191-3109
  • Mfr. Part No. B32523Q1335K000
Subtotal (1 unit)
SGD2.67(exc. GST)
SGD2.67/unit
Temporarily out of stock
Wurth Elektronik 2 mH 18.5 A Common Mode Choke 5.5 mΩ 760V ac
  • RS Stock No. 126-0969
  • Mfr. Part No. 744830010185
Subtotal (1 unit)
SGD19.88(exc. GST)
SGD19.88/unit
Last RS stock
TE Connectivity 2.4 kΩ Metal Oxide Resistor 5 W 5 %
  • RS Stock No. 187-0137
  • Mfr. Part No. ROX5SSJ2K4
Subtotal (20 units, in packs of 20)
SGD13.60(exc. GST)
SGD0.68/unit
Temporarily out of stock
KEMET 100 μF Multilayer Ceramic Capacitor, 6.3V dc, ±20 %, Surface
  • RS Stock No. 146-6363
  • Mfr. Part No. C1206C107M9PACTU
Subtotal (2000 units, on reels of 2000)
SGD1,296.00(exc. GST)
SGD0.648/unit
In Stock
KEMET 1 μF Multilayer Ceramic Capacitor, 16V dc, ±5 %, Surface
  • RS Stock No. 146-4318
  • Mfr. Part No. C0805C105J4RACTU
Subtotal (25 units, in bags of 25)
SGD5.55(exc. GST)
SGD0.222/unit
In Stock
Yageo RC_L 150 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - RC0805FR-07150KL
  • RS Stock No. 199-5654
  • Mfr. Part No. RC0805FR-07150KL
Subtotal (5000 units, on reels of 5000)
SGD35.00(exc. GST)
SGD0.007/unit
In Stock
RS PRO 25 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS Stock No. 842-7059P
Subtotal (1 unit, supplied in a bag)
SGD20.61(exc. GST)
SGD20.61/unit
Last RS stock
TE Connectivity CPF 47.5 kΩ, 0603 Thin Film Surface Mount Resistor ±0.1 % Surface 0.06 W - CPF0603B47K5E1
  • RS Stock No. 122-8887
  • Mfr. Part No. CPF0603B47K5E1
Subtotal (20 units, in bags of 20)
SGD7.94(exc. GST)
SGD0.397/unit
Temporarily out of stock
KEMET 100 μF Surface Polymer Capacitor, 6.3V dc
  • RS Stock No. 173-7036
  • Mfr. Part No. T520B107M006ATE025
Subtotal (2000 units, on reels of 2000)
SGD1,822.00(exc. GST)
SGD0.911/unit
In Stock
Arcol Ohmite 25 mΩ Wirewound Fixed Resistor 3 W 1 % 13FR025E
  • RS Stock No. 124-9286
  • Mfr. Part No. 13FR025E
Subtotal (5 units, in bags of 5)
SGD36.50(exc. GST)
SGD7.30/unit
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