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Capacitors

Capacitors have a property known as capacitance, which is a measure of their ability to store electrical charge. Capacitance is typically measured in units of farads (F). The larger the capacitance of a capacitor, the more electrical charge it can store. Capacitors come in a wide range of sizes and types, and they are used in a variety of applications, including power supplies, filters, and oscillators.
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An electrolytic capacitor uses an electrolyte (a liquid or gel containing a high concentration of ions) to achieve a large capacitance than the o...

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Original price $0.52 - Original price $3.65
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Current price $0.52
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Polypropylene capacitors have a very low dielectric loss and are particularly suitable in audio circuits and sample-and-hold circuits...

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Original price $1.55 - Original price $1.55
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60 top quality prime spec greencaps supplied. From 0.001uF to 0.22uF, all 100V.

Original price $16.90 - Original price $16.90
Original price $16.90
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Current price $16.90
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Polypropylene capacitors have a very low dielectric loss and are particularly suitable in audio circuits and sample-and-hold circuits...

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Original price $1.65 - Original price $1.65
Original price $1.65
$1.65
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Current price $1.65
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These capacitors are designed to replace the original capacitor that has failed. You must replace the part as the motor may simply not work, dra...

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Original price $20.90 - Original price $20.90
Original price $20.90
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Current price $20.90
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Polypropylene capacitors have a very low dielectric loss and are particularly suitable in audio circuits and sample-and-hold circuits...

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Original price $1.20 - Original price $1.20
Original price $1.20
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Current price $1.20
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A ceramic capactior is a fixed-value capactior in which ceramic material acts as the dielectric. It is constructed of two or more alt...

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Original price $3.65 - Original price $3.65
Original price $3.65
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Current price $3.65
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Polypropylene capacitors have a very low dielectric loss and are particularly suitable in audio circuits and sample-and-hold circuits...

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Original price $1.20 - Original price $1.20
Original price $1.20
$1.20
$1.20 - $1.20
Current price $1.20
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Up until now if you required a high value (100uF up) capacitor for a crossover that will handle real power it was near impossible. Our 50V BiPola...

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Original price $2.60 - Original price $27.90
Original price $2.60
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$2.60 - $27.90
Current price $2.60
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An electrolytic capacitor uses an electrolyte (a liquid or gel containing a high concentration of ions) to achieve a large capacitance than the ...

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Original price $0.38 - Original price $9.90
Original price $0.38
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$0.38 - $9.90
Current price $0.38
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Ceramic Capacitor • 50 Volt • 100 Nanofarad (0.1 Microfarad) • 20% Tolerance Capacitor type : Ceramic Polarised Capacitor...

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Original price $0.42 - Original price $0.42
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55 quality, most RB types, electrolytic supplied. Values range from 1µF to 470µF. Voltages from 16 to 63.

Original price $17.90 - Original price $17.90
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1 Year Warranty Polypropylene capacitors have a very low dielectric loss and are particularly suitable in audio circuits and sample-and-hold circ...

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Original price $5.70 - Original price $5.70
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Working voltage 225V DC.- Insulation resistance >104Mmin at 250V DC.- Withstand voltage 500V DC.- Temperature coefficient N2200.- Colour pu...

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Original price $3.65 - Original price $3.65
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This style of capacitor is distinguished because, whilst bulky, does not need a chassis clamp. Fixing is by the stout lead wires. While soldered,...

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Original price $10.90 - Original price $10.90
Original price $10.90
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Pack of 50 assorted 100V MKT capacitors. Values range from .001uf to 0.47uf, with more of the popular values supplied. Specifications: ...

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Original price $24.90 - Original price $24.90
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Polyester capacitors offer good stability, a large range of values at low cost, and the most widely used capacitor for general purpose. Capa...

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Original price $0.75 - Original price $2.40
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Current price $0.75
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Bipolar RB Electrolytic capacitors (non-polarised capactiors) which may be operated with either polarity are special constructions with two anod...

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Original price $0.70 - Original price $3.65
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These RT (axial) non polar capacitors are ideal for high quality crossovers. They offer excellent audio-frequency characteristics and are rated a...

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Original price $4.90 - Original price $23.90
Original price $4.90
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Current price $4.90
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Tantalum capacitor thru-hole. Resin-dipped case.  Specifications: Capacitor type Tantalum Polarised Capacitor Yes Item capacitan...

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Original price $0.94 - Original price $3.30
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A monolithic ceramic capacitor consists of thin dielectric layers interleaved with staggered metal-film electrodes; after leads are c...

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Original price $10.90 - Original price $10.90
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As used in most transistor radios and many kits that incorporate a radio.- Size 20mm x 20mm x 10.5mm high.- Supplied with 35mm dia. plastic kn...

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Original price $7.90 - Original price $7.90
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Specifications:- Working Voltage: 50V DC- Insulation Resistance: >104Mohm min @ 250V DC- Operating Temp: - 30°C to +85- Withstand Voltage: ...

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Original price $2.30 - Original price $2.30
Original price $2.30
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Current price $2.30
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This style of capacitor is distinguished because, whilst bulky, does not need a chassis clamp. Fixing is by the stout lead wires. While soldered,...

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Original price $22.90 - Original price $22.90
Original price $22.90
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Current price $22.90
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How do I determine what size of capacitor I need

To determine the size of capacitor that you need, you will need to consider the following factors:

Capacitance: The capacitance of a capacitor is measured in Farads (F). The larger the capacitance, the more energy the capacitor can store. In general, the capacitance should be chosen based on the amount of energy that needs to be stored and the voltage that the capacitor will be subjected to.

Voltage rating: The voltage rating of a capacitor is the maximum voltage that it can safely withstand. It is important to choose a capacitor with a voltage rating that is equal to or greater than the maximum voltage that it will be subjected to.

Operating temperature: The operating temperature of a capacitor should be considered, especially if the capacitor will be used in a high temperature environment. Choose a capacitor with a temperature rating that is appropriate for the operating environment.

Size and physical constraints: The size and physical constraints of the capacitor will also be important considerations. You may need to choose a capacitor with a specific size or shape to fit in a particular location or to meet other physical constraints.

To determine the specific size of capacitor that you need, you will need to carefully consider these factors and compare them to the requirements of your application. It may be helpful to consult with a technical expert or refer to technical documentation or design guides to help you select the appropriate size of capacitor.

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