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

163688 Products showing for Passive Components

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Bourns, 4600X 10 kΩ 2 % BUS Resistor Array, 3 Resistors, 0.5 W total, SIP, Pin
  • RS Stock No. 865-1918
  • Mfr. Part No. 4604X-101-103LF
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HK$47.10
HK$0.942/unit
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Bourns 22.8 mm Knob Diameter Black, Chrome Potentiometer Knob for 6 mm Shaft Circular, H-516-6M
  • RS Stock No. 167-5213
  • Mfr. Part No. H-516-6M
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HK$724.70
HK$72.47/unit
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Abracon, ASPI-0630LR Shielded Surface Mount Inductor with a Iron Core, 5.6 μH Flat Wire Winding ±20 % 6 A Idc
  • RS Stock No. 240-0925
  • Mfr. Part No. ASPI-0630LR-5R6M-T15
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HK$47.70
HK$4.77/unit
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Nichicon 330 μF Capacitor 450V dc, Snap-in
  • RS Stock No. 846-6887P
  • Mfr. Part No. LGL2W331MELB35
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HK$100.20
HK$100.20/unit
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Siretta TANGO44/1M/LL/SMAM/S/S/19 Puck Multi-Band Antenna with SMA Male Connector, ZigBee, 4G (LTE Cat-M), Bluetooth
  • RS Stock No. 140-8069
  • Mfr. Part No. TANGO44/1M/LL/SMAM/S/S/19
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HK$251.60
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RS PRO 85 dB Panel Mount Continuous Internal 13.5 mm Piezo Buzzer Component 44 mm 3 V dc Min 12V dc Max
  • RS Stock No. 535-8275
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HK$17.60/unit
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TDK 70 dB PCB Low External 11 mm Piezo Buzzer Component 5 V ac Min 30V ac Max
  • RS Stock No. 134-7298
  • Mfr. Part No. PS1420P02CT
Subtotal (10 units, in packs of 10)
HK$80.30
HK$8.03/unit
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KOA 22 kΩ Carbon Film Resistor 0.25 W 5 % CFS1/4C223J
  • RS Stock No. 491-2806
  • Mfr. Part No. CFS1/4C223J
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HK$11.30
HK$0.565/unit
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KOA 6.8 kΩ Carbon Film Resistor 0.25 W 5 % CF1/4C682J
  • RS Stock No. 475-6713
  • Mfr. Part No. CF1/4C682J
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HK$44.20
HK$0.442/unit
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Panasonic 10 μF Aluminium Electrolytic Capacitor 25V dc, Radial, Through Hole Radial Lead
  • RS Stock No. 920-4888
  • Mfr. Part No. EEAFC1E100
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HK$201.40
HK$1.007/unit
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Same Sky 8 Ω 0.7 W Miniature Speaker, 18 mm Lead Length 2.5 mm, 13mm
  • RS Stock No. 259-6231
  • Mfr. Part No. CMS-181325-078SP-67
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HK$47.50
HK$23.75/unit
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TDK Thermistor, NTC Type 10 Ω 18 mm 11 mm 7 mm
  • RS Stock No. 185-7751
  • Mfr. Part No. B57238S0100M000
Subtotal (5 units, in packs of 5)
HK$36.40
HK$7.28/unit
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Rubycon 3.3 μF Capacitor 400V dc, Radial, Through Hole - 400BXC3R3MEFC10X12.5 Radial Lead
  • RS Stock No. 751-1131
  • Mfr. Part No. 400BXC3R3MEFC10X12.5
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HK$41.00
HK$4.10/unit
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Fair-Rite Openable, Diameter 13.05 mm Ferrite Core, Apertures: 1 15.25 mm 39.4 mm 31 mm, For EMI Suppression
  • RS Stock No. 466-9085
  • Mfr. Part No. 0431164181
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HK$38.70
HK$38.70/unit
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Euroquartz 4 MHz Crystal ±30 ppm HC-49 2-Pin 3.5 mm 10.77 mm 4.34mm
  • RS Stock No. 693-8774
  • Mfr. Part No. 4.000MHz HC49/4H/30/50/-40+85/18pF/ATF
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HK$4.80
HK$4.80/unit
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RF Solutions ANT-GSMPUKS-IP67 Puck Omni-Directional Antenna with SMA Connector
  • RS Stock No. 704-3427
  • Mfr. Part No. ANT-GSMPUKS-IP67
Subtotal (1 unit)
HK$283.30
HK$283.30/unit
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Bourns 15 ppr Pulse Incremental Mechanical Rotary Encoder with a 3.1 mm (Not Indexed), PCB
  • RS Stock No. 269-2420
  • Mfr. Part No. PER561-P115-N0015
Subtotal (1 unit)
HK$65.30
HK$65.30/unit
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Ewon FAC91201_0000 Round Omni-Directional GSM & GPRS Antenna with SMA Connector
  • RS Stock No. 250-2728
  • Mfr. Part No. FAC91201_0000
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HK$808.70
HK$808.70/unit
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TDK 2.2 mH Ferrite Leaded Inductor, Max SRF:800 kHz, Q:60, 120 mA Idc, 9 Ω Rdc, LBC
  • RS Stock No. 880-7225
  • Mfr. Part No. B82144A2225J000
Subtotal (10 units, in bags of 10)
HK$29.00
HK$2.90/unit
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RS PRO 70 dB Through Hole Continuous Internal 7.6 mm Piezo Buzzer Component 3 V dc Min 20V dc Max
  • RS Stock No. 535-8253
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HK$18.20
HK$18.20/unit
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