Tutorial-1
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Group No.: 11
Polymer:Polyster
Application/Product: Dielectric Film Capacitor
Workload Distribution
Roll Number
Name
Activity
21CH60R79
Ujjwal Tiwari
Polymer products based on application
21CH60R80
Srutirani Khandayat
Grades of polyester
21CH60R81
Sushrunsha Daile
Material properties, Surfing & PPT
21CH60R82
Prashik Gadge
Summary and discusion
21CH60R84
Priyesh Ranjan
PPT
Assigned Polymer: POLYESTER
Area of application: Industrial and speciality
Chosen application/Product: Dielectric Film Capacitor
Polymer Products based
on Applications
Packaging
•
•
•
•
Flexible packaging
Metallized packaging
Cane lamination
Metallized film
Textile
• Industrial Fabric
• Car-tire reinforcement
Paints
Wood finishing
Industrial & specialty
•
•
•
•
Liquid crystal display
Insulating tapes
Insulation of 5-G antenna
Dielectric film capacitor
Select one product out of
these and mention reason
Product/Application
• Dielectric film capacitor
Mainly used for
• Energy storage
• Electronic filter
• loudspeakers
Advantages
• High dielectric strength
• Excellent chemical resistance to
organic material and water
• Abrasion resistance
• Heat resistance
• Poor absorbency
Standards available
• ISO9001
Future of the selected
product (Group opinion)
•
•
•
•
Can replace ceramic
capacitor for better
efficiency
Smaller size capacitor can be
made
Cheaper capacitor can be
made in future
Product Image
Polymer: Polyster
Area of application: Electric circuits
Product Chosen: Dielectric film capacitor
Reasons for Choosing
the above Product
•
To provide the
smoothening effect
• Not polarized so
used in Ac signal &
power usage
• Power supplies
where the very high
capacitance levels
of electrolytic
capacitors are not
needed.
Key Product
Requirements
•
•
•
•
•
•
Tiny Size
Abrasion resistance
Long life
High Voltage
Less leakage of current
Large working
temperature range
• Reliability
• Accuracy
Material Properties
required in view of
product performance
• High Dielectric
Strength
• Tolerance
• Operating
Temperature
• Low level Equivalent
series resistance
• Low level Equivalent
series inductance
Material Chosen: POLYESTER
Offerings of the Material chosen: Dielectric Film Capacitor
Manufacturers of the material
•
•
•
•
•
•
•
•
•
•
•
•
Neotroniks
TC Components India Pvt Ltd
Indus Technotronics Pvt Ltd
Jrb Electrical Insulation
JM Enterprises
HI-Tech Electro Component Pvt Ltd
Orbit Electronics
Rotek Electronix
Elcon Electronics Pvt Ltd
Advance Components and Instruments
Pvt Ltd
panasonic
Trade Corp
Grades of the Material
Panasonic
•
•
•
•
ECQ-E6473KF
ECQ-E6103KF
ECQ-E4474KF
ECQ-E1225KF
Cornell Dubilier
•
•
•
•
•
•
104M06QC47
168104J50A-F
255P10491WD3
160334J100E-F
255P22391WD3
DME4P1K-F
DIELECTRIC FILM CAPACITOR DIELECTRIC PROPERTIES
POLYESTER PROPERTY
VALUE / DETAILS
Dielectric constant (@ 1MHz)
3.2
Dissipation factor (@ 1 kHz (tanδ in 5)
0.5
Insulation resistance (MΩ x µF
25 000
Dielectric absorption (%)
0.2
Capacitance drift (ΔC/C %)
1.5
Maximum temperature (°C)
125
Temperature coefficient (ppm / °C)
+400 ±200
Out of all the types/ brands/ variations, which one will you select ? (select any one)
polyester capacitor
Your Justification for the selection of the above type/ brand/ variations of the desired material
•
•
•
•
•
•
•
•
In comparison with the other two main capacitor technologies, ceramic and electrolytic capacitors, film
capacitors have properties that make them particularly well suited for many general-purpose and industrial
application in electronic equipment.
Two main advantages of film capacitors are very low ESR and ESL values.
It has much higher surge and pulse load capabilities.
As film capacitor are not polarized, they can be used in AC voltage applications without DC bias, and they
have much more stable electrical parameters.
Polyester capacitor delivers an inexpensive product within a little outline & operates at 125°C of
temperatures.
Polyester capacitors are frequently regarded as high-quality general-purpose capacitors. Even though they
cannot offer a high range of accuracy& tolerance, but they offer good ranges of volumetric capacitance.
As compared to film capacitors, ceramic capacitors are fairly non-linear within their voltage& frequency
responses.
Ceramic capacitors tend to act as microphones, so picking up ambient noise & changing the voltage beyond
them consequently.
SUMMARY AND DISCUSSION
• Capacitors working frequently get restricted because of different losses like surge
or leakage. When leakage loss can be decreased by appropriate insulation using a
ceramic or an epoxy coating, damage can be avoided because of short circuits.
Depending on the dielectric type used, the capacitors like metal film are either of
polyester or polypropylene type.
• These capacitors are frequently regarded as good general-purpose capacitors.
Although they cannot provide a high range of tolerance as well as accuracy, they
can be used in several other applications which provide good volumetric
capacitance levels.
• Polyester capacitors are also called PET/ Mylar which is utilized in several areas
where leaded capacitors can be accommodated. This capacitor is used where
maximum levels of peak current need to handle