Products Found: 0

Showing Results For: Paper Capacitors

Paper Capacitors

A paper capacitor is among the earliest capacitors. It is also known as a condenser because it is constructed using two conducting surfaces separated by an insulating material. Paper capacitors are also known by the name fixed capacitors, in which paper is used as the dielectric material that stores energy as the electric field. These capacitors are mainly operated at powerline capacity with a capacitance value ranging from 1nF to 1uF. A paper capacitor holds a set amount of electric charge. The...

A paper capacitor is among the earliest capacitors. It is also known as a condenser because it is constructed using two conducting surfaces separated by an insulating material. Paper capacitors are also known by the name fixed capacitors, in which paper is used as the dielectric material that stores energy as the electric field. These capacitors are mainly operated at powerline capacity with a capacitance value ranging from 1nF to 1uF. A paper capacitor holds a set amount of electric charge. Then the construction of this capacitor is determined by the paper used, which is classified into two types known as:

  • Paper sheet
  • Metalized paper

How Does a Paper Capacitor Work?

As mentioned before, a paper capacitor is constructed of two metallic plates and paper as their dielectric used between those plates. The plates are positive and negative. When you apply even a tiny amount of electric charge to the plates, the positive charge will be attracted to one plate and the negative to the other. The electrical energy is used when the capacitor discharges. They are found in the range of 500pF to 50nF. Paper capacitors are also good at providing high leakage current.

Applications of Paper Capacitors

  • Paper capacitors are effectively used in various applications like:
  • High current and high voltage applications
  • Used effectively in electronics and electrical applications
  • They are used in power conditioning systems which helps in blocking DC signals and allows AC signals
  • Used in-car audio systems which improve the overall sound quality of the speakers
  • Utilised as sensors to measure fuel levels, air humidity, and mechanical strain levels.
  • Also effectively used in the signal coupling, noise filtering, remote sensing, and decoupling systems.
  • They are widely used in signal processing systems like dynamic random-access memory, speakers, tune circuits, analog equalisers, and radio receivers.

Construction of Paper Capacitors

As we previously mentioned, the construction of the paper capacitor can be divided into two types that are:

  • Paper sheet capacitor
  • Metalized paper capacitor

Paper Sheet Capacitor

In constructing this capacitor, an aluminium sheet and a paper sheet are required. The paper sheet is then covered with wax or soaked in oil to protect it from environmental factors. Paper capacitors store a fixed amount of electric charge at a fixed capacitance value. The paper sheet placed between the aluminium sheet will function as the dielectric material, and the aluminium will serve as the electrodes.

As we all know, paper is terrible at conducting electricity, which restricts the flow of electric current between the aluminium sheets, which allows the electric field to pass through it and functions as a barrier to the electric current. The aluminium sheets and paper sheets are folded in a cylinder shape. The whole cylinder is covered with plastic resin or wax to protect it from environmental factors, especially moisture. The two-wire leads are usually taken from the ends of the aluminium sheets.

Metallised Paper Capacitor

In a metallised paper capacitor, the paper is used as dielectric material and coated with a thin layer of aluminium or zinc rolled in the form of a cylinder. The exact process happens in this one for protection against environmental factors, which is coating with wax. These capacitors are usually coated with zinc because chemical actions can quickly destroy them. Therefore, they are widely used in construction. There is also a difference in size as these capacitors are comparatively smaller than paper sheet capacitors.


No Results found

New Items
New items
2SA2039-E, ON Semiconductor
New items
ISL8488EIBZA, Intersil

ISL8488EIBZA, Intersil

IC TXRX RS422/485 250KBPS 8SOIC
New items
C0603C682K5RACTU, KEMET

C0603C682K5RACTU, KEMET

CAP CER 6800PF 50V X7R 0603
New items
UPM1A102MPD, Nichicon

UPM1A102MPD, Nichicon

CAP ALUM 1000UF 20% 10V RADIAL
New items
STM32H563ZIT6, STMicroelectronics

STM32H563ZIT6, STMicroelectronics

HIGH-PERFORMANCE, ARM CORTEX-M33
New items
UT014JCSL, Souriau

UT014JCSL, Souriau

CONN BACKSHELL W/CLAMP SZ 14
New items
ZBP0A, Schneider Electric

ZBP0A, Schneider Electric

Accessories Professional range of Schneider Electric accessories from the ZB4 series of pushbutton switches. Accessories include protection guards, transparent boots, moulded guards and flush kits. Schneider Electric ZB4-B & XB4-B Harmony® 22mm Range
New items
STM32G483VET6, STMicroelectronics

STM32G483VET6, STMicroelectronics

MAINSTREAM ARM CORTEX-M4 CORE WI
New items
XB5KS2B4, Schneider Electric

XB5KS2B4, Schneider Electric

Continuous or Intermittant Illuminated Red Buzzer 24v ac/dc XB5KS2B4 Continuous or intermittant buzzer. Features and Benefits Bezel material plastic Mounting diameter 22mm Red lens Continuous or intermittant tone Product Application Information Industry: machine manufacturers, chemical industry, paper mill, marine applications Service sector and infrastructure: energy distribution panel builders, food and beverage, car washes
New items
XACB04, Schneider Electric

XACB04, Schneider Electric

Metal Control stations designed for harsh applications Robust, aluminium alloy enclosure Shock and vibration resistance conforming to IEC 68-2-6 Large, metal, flush-mounted pushbuttons with legend plates Easily accessible earth terminal IP 65 Rated Schneider Electric - Push Buttons Pendant control stations are used on hoists, overhead cranes and as remote control stations. They conform to EN60947-1, EN60947-5-1, NFC63-140 and VDE0660 part 2 standards. All actuator buttons incorporate 1 N/O and 1 N/C positive action contact rated at 240Vac, 3A I th ;250Vdc, 0.27A I th ; 10A I th allowing electrical cross-interlocking if desired. Environmental protection to IP65 Fitted cable clamps and stepped cable entry boots Mechanical interlocking between each pair of opposing pushbutton actuators Adapters supplied for self-supporting pendant cable, with lug for chain support Key Characteristics Pendant Control Functions Standard With Safety Features Pistol Grip Intuitive Metal type 4 way 6 way 8 way 2 way 6 way 8 way 2 way 3 way 2-way 4 way 8 way stock no. 340-689 340-695 609-4499 , 609-4506 250-7963 250-7979 250-7985 340-673 250-7957 340-702 289-1943 289-4015 Hoist Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Lower Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Right Yes Yes Yes No Yes Yes No No No No Yes Left Yes Yes Yes No Yes Yes No No No No Yes Forward No Yes Yes No No Yes No No No No Yes Reverse No Yes Yes No No Yes No No No No Yes E-Stop Yes Yes No No No No No Yes Yes No No Higher category E-Stop (EN954-1) No No Yes Yes Yes Yes No No No Yes Yes On No No Yes No Yes Yes No No No Yes Yes
New items
XACB08, Schneider Electric

XACB08, Schneider Electric

Pendant Control Station Accessories A range of Schneider accessories from the Harmony XAC series for use with pendant control stations. Suitable for all station types Schneider Electric - Push Buttons Pendant control stations are used on hoists, overhead cranes and as remote control stations. They conform to EN60947-1, EN60947-5-1, NFC63-140 and VDE0660 part 2 standards. All actuator buttons incorporate 1 N/O and 1 N/C positive action contact rated at 240Vac, 3A I th ;250Vdc, 0.27A I th ; 10A I th allowing electrical cross-interlocking if desired. Environmental protection to IP65 Fitted cable clamps and stepped cable entry boots Mechanical interlocking between each pair of opposing pushbutton actuators Adapters supplied for self-supporting pendant cable, with lug for chain support Key Characteristics Pendant Control Functions Standard With Safety Features Pistol Grip Intuitive Metal type 4 way 6 way 8 way 2 way 6 way 8 way 2 way 3 way 2-way 4 way 8 way stock no. 340-689 340-695 609-4499 , 609-4506 250-7963 250-7979 250-7985 340-673 250-7957 340-702 289-1943 289-4015 Hoist Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Lower Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Right Yes Yes Yes No Yes Yes No No No No Yes Left Yes Yes Yes No Yes Yes No No No No Yes Forward No Yes Yes No No Yes No No No No Yes Reverse No Yes Yes No No Yes No No No No Yes E-Stop Yes Yes No No No No No Yes Yes No No Higher category E-Stop (EN954-1) No No Yes Yes Yes Yes No No No Yes Yes On No No Yes No Yes Yes No No No Yes Yes
New items
RPZF1, Schneider Electric

RPZF1, Schneider Electric

RPM Series - Accessories Accessories for RPM series power relays, including sockets, adaptors and clamps.
New items
XVUZ02, Schneider Electric

XVUZ02, Schneider Electric

Schneider Harmony XVU Modular Signal Tower The Harmony XVU series is a modular beacon tower ideally suited for automotive, machine tooling, material handling and electronic equipment industries. They are 360° visual and audible signalling units that come with a combination of innovative features and offer high performance. The Harmony XVU is also simple and easy to assemble, without the need for any tools. They offer convenient mounting options with direct mounting, pole mounting and three-in-one adjustable wall mounting. These signal towers also offer good resistance to dust and water and are UL/CSA compliant. The illuminated units are rated to IP65 and are resistant to cutting oil while the audible units are rated to IP54. High performance light • True colour and homogeneity light • Improved visibility • LED super-bright flash with long life performance Customized voice message • Free of charge configuration software enables the audible signal to be customized via an SD card • The sound module plays voice message when customer inputs PLC signals • Adjustable volume up to 86dB at 1m Innovative features • Multi-colour LED module with a choice of six colours and four light patterns • Pole mounting with height adjustable tube allowing the adjustment of the column height without any tools • Flexible mounting module for use on horizontal or vertical support • Pulse signal modules use pulse signals in single wire to control the tower light Simplified wiring • Pulse signal modules use one signal wire to define different types of signalling • Flexible and configurable light patterns • Up to 256 different combinations of audible and visual signals • Up to 16 different combinations of visual signals (colour combination) • One pulse signal multi-colour unit can be implemented instead of several single colour illuminat...
New items
TM3AQ4G, Schneider Electric

TM3AQ4G, Schneider Electric

Modicon TM3 - Analog Output Modules Analog output modules for Modicon M221, M241 and M251 logic controllers Modicon TM3 analog output modules Types with different numbers of analog outputs Types with voltage and current outputs available Terminal block with screw or spring connectors Schneider Electric Modicon TM3 The Modicon TM3 is a MachineStruxure I/O system. The next generation of MachineStruxure from Schneider Electric is an intuitive solution for machine automation with all the features and functions you need to build machines that will improve your bottom line. From design and development, to commissioning and maintenance, MachineStruxure is a complete machine building solution with benefits all through the machine life cycle. The Modicon TM3 expansion module offer provides an opportunity to enhance the capabilities of Modicon M221, M241 and M251 logic controllers. In addition, the TM3 expansion system is flexible due to the possibility of remotely locating some of the TM3 modules in the enclosure or another cabinet (up to 5 meters away, using a bus expansion system.
New items
ZB4BS55, Schneider Electric

ZB4BS55, Schneider Electric

Mushroom Heads for Spring Return Pushbuttons, ZB4-B ZB4-B series mushroom heads. Note Contact blocks must be ordered seperately (see stock no. 331-0158 ). Stock nos. 330-9013 , 330-9029 , 330-9035 and 342-2627 also require a fixing collar (see stock no. 331-0142 ). For contact blocks that include a collar, please see stock no. 331-0192 and range. Schneider Electric ZB4-B & XB4-B Harmony® 22mm Range
New items
ZB5AZ009, Schneider Electric
New items
MC74HC4052ADTR2G, ON Semiconductor
New items
NCP3335ADM500R2G, ON Semiconductor
New items
MJD253T4G, ON Semiconductor
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Paper Capacitors and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Paper Capacitors or any other product.
This depends on the Paper Capacitors individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Paper Capacitors and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Paper Capacitors.
Yes. We keep updating our stock frequently and if a product like Paper Capacitors is not in stock then we will let you know.