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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EMI Filters & Protection
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Passive Components Kits
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Sounder, Buzzer & Microphone Components
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169580 Products showing for Passive Components

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KYOCERA AVX 47 μF Electrolytic Tantalum Capacitor 35V dc, Through Hole, Tap Series
  • RS Stock No. 134-9892
  • Mfr. Part No. TAP476K035CCS
Subtotal (1 bag of 1 unit)
$10.44(exc. GST)
$10.44/bag
Stocked by manufacturer
Phoenix Contact, PLUGTRAB PT Surge Protection Plug 250V ac Maximum Voltage Rating 20 kA Maximum Surge Current Surge
  • RS Stock No. 497-975
  • Mfr. Part No. 2920120
Subtotal (1 pack of 10 units)
$5,079.36(exc. GST)
$507.936/unit
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WJ Furse, D Surge Arrester 280V Maximum Voltage Rating 32 A Maximum Surge Current Mains Protector
  • RS Stock No. 847-2696
  • Mfr. Part No. 7TCA085460R0322 ESP 240D-32A
Subtotal (1 unit)
$622.57(exc. GST)
$622.57/unit
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Sollatek, Voltshield Voltage Switcher 230V Maximum Voltage Rating 6.5 kA Maximum Surge Current
  • RS Stock No. 707-9842
  • Mfr. Part No. 92621620
Subtotal (1 unit)
$251.49(exc. GST)
$251.49/unit
In Stock
WJ Furse, ESP 240 Surge Suppressor Unit 280V Maximum Voltage Rating 10 kA Maximum Surge Current Low Current Mains
  • RS Stock No. 456-8128
  • Mfr. Part No. 7TCA085460R0083 ESP 240-5A
Subtotal (1 unit)
$340.25(exc. GST)
$340.25/unit
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Panasonic, E-S1 Surge Absorber 900 pF 100 A, Clamping 1815 V, Varistor 360 V
  • RS Stock No. 187-8351P
  • Mfr. Part No. ERZE14A361SC
Subtotal 10 units (supplied in a bag)
$11.27(exc. GST)
$1.127/unit
In Stock
Vishay CRCW 4.7 Ω, 0603 Thick Film Surface Mount Resistor ±1 % 0.1 W - CRCW06034R70FKEA
  • RS Stock No. 181-7876
  • Mfr. Part No. CRCW06034R70FKEA
Subtotal (1 reel of 1000 units)
$29.00(exc. GST)
$0.029/unit
In Stock
Visaton Wirewound Surface Mount Inductor 0.1 mH
  • RS Stock No. 526-983
  • Mfr. Part No. 5000
Subtotal (1 unit)
$5.20(exc. GST)
$5.20/unit
Limited stock
Vishay Single Layer Ceramic Capacitor 4.7 nF 400V ac ±20 % Y5U Dielectric, WYO, Through Hole 125 °C Max Op. Temp.
  • RS Stock No. 683-2204
  • Mfr. Part No. WKO472MCPEJ0KR
Subtotal (1 pack of 10 units)
$19.26(exc. GST)
$1.926/unit
Currently unavailable
Vishay Single Layer Ceramic Capacitor 1 nF 10kV dc ±20 %, HVCC, Through Hole 105 °C Max Op. Temp.
  • RS Stock No. 204-2378
  • Mfr. Part No. HVCC203Y6P102MEAX
Subtotal (1 pack of 2 units)
$13.61(exc. GST)
$6.805/unit
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Siretta DELTA8A/x/SMAM/S/S/17 Stubby Multi-Band Antenna with SMA Connector, WiFi
  • RS Stock No. 124-8877
  • Mfr. Part No. DELTA8A/x/SMAM/S/S/17
Subtotal (1 unit)
$13.89(exc. GST)
$13.89/unit
In Stock
TE Connectivity, CRG-2512 Thick Film, Surface 52 Resistor Kit, 1 Ω → 1 MΩ
  • RS Stock No. 223-9991
  • Mfr. Part No. 3520-LABKIT1
Subtotal (1 unit)
$458.21(exc. GST)
$458.21/unit
In Stock
Schurter, FPAC RAIL 20 A 520V ac, DIN Rail Power Line Filter, Screw 3 Phase
  • RS Stock No. 725-735
  • Mfr. Part No. 3-150-016
Subtotal (1 unit)
$348.17(exc. GST)
$348.17/unit
In Stock
Elma Potentiometer Knob Cap 10 mm, Green
  • RS Stock No. 243-9576
  • Mfr. Part No. 040-1065
Subtotal (1 unit)
$4.50(exc. GST)
$4.50/unit
In Stock
Vishay 19 mm Knob Diameter Black Potentiometer Knob for 0.25 in Shaft Screw Fix, ACCKPP1915NLP14
  • RS Stock No. 653-050
  • Mfr. Part No. ACCKPP1915NLP14
Subtotal (1 unit)
$3.63(exc. GST)
$3.63/unit
In Stock
Schneider Electric Potentiometer Mounting Kit, ZB4BD912 6 mm
  • RS Stock No. 330-9114
  • Mfr. Part No. ZB4BD912
Subtotal (1 unit)
$226.65(exc. GST)
$226.65/unit
In Stock
Vishay CRCW 2.2 kΩ, 0805 Thick Film Surface Mount Resistor ±1 % 0.13 W - CRCW08052K20FKEA
  • RS Stock No. 182-5498
  • Mfr. Part No. CRCW08052K20FKEA
Subtotal (1 reel of 1000 units)
$23.00(exc. GST)
$0.023/unit
In Stock
Microchip RN-SMA-S-RP Stubby WiFi Antenna with SMA RP Connector, WiFi
  • RS Stock No. 798-5377P
  • Mfr. Part No. RN-SMA-S-RP
Subtotal 1 unit (supplied in a bag)
$13.14(exc. GST)
$13.14/unit
In Stock
RS PRO 95 dB Through Hole Continuous Internal 9.5 mm Piezo Buzzer Component 3 V dc Min 20V dc Max
  • RS Stock No. 617-3069
Subtotal (1 unit)
$5.80(exc. GST)
$5.80/unit
In Stock
Murata 10 μF Multilayer Ceramic Capacitor, 10V dc, 10 %, Surface
  • RS Stock No. 247-7745
  • Mfr. Part No. GCJ21BR71A106KE01L
Subtotal (1 tape of 10 units)
$3.52(exc. GST)
$0.352/unit
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