Film Capacitors

Part Number	Description / PDF	Quantity
QYX2A822JTP Nichicon	CAP FILM 8200PF 5% 100VDC RADIAL	2231
R82DC3150AA60K KEMET	CAP FILM 0.15UF 10% 63VDC RAD	2911
R60IF3100AA6AK KEMET	CAP FILM 0.1UF 10% 250VDC RADIAL	0
R75PR418050H3J KEMET	CAP FILM 1.8UF 5% 630VDC RADIAL	128
BFC246756272 Vishay BC Components/Beyshlag/Draloric	CAP FILM 2700PF 5% 400VDC RADIAL	0
BFC241918203 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.082UF 2% 400VDC RAD	0
B32654A1683J000 TDK EPCOS	CAP FILM 0.068UF 5% 1.6KVDC RAD	0
ECQ-E12184JF Panasonic	CAP FILM 0.18UF 5% 1.25KVDC RAD	0
BFC236843104 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.1UF 10% 250VDC RADIAL	0
ECQ-E2395RKB Panasonic	CAP FILM 3.9UF 10% 250VDC RADIAL	0
168824K50G-F Cornell Dubilier Electronics	CAP FILM 0.82UF 10% 50VDC RADIAL	0
F871DO474M330Z KEMET	CAP FILM 0.47UF 20% 330VAC RAD	0
BFC233921152 Vishay BC Components/Beyshlag/Draloric	CAP FILM 1500PF 20% 630VDC RAD	0
SFC66T10K291B-F Cornell Dubilier Electronics	CAP FILM 10UF 10% 660VAC RADIAL	0
PHE840MB6100KB05R17 KEMET	CAP FILM 0.1UF 10% 760VDC RADIAL	800
MKP1839322634 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.022UF 5% 630VDC AXIAL	0
B32653A2102K000 TDK EPCOS	CAP FILM 1000PF 10% 2KVDC RADIAL	0
171103J630D-F Cornell Dubilier Electronics	CAP FILM 10000PF 5% 630VDC RAD	0
565MKP275KJ Cornell Dubilier Electronics	CAP FILM 5.6UF 10% 310VAC RADIAL	0
F17725222004 Vishay BC Components/Beyshlag/Draloric	CAP FILM 2.2UF 10% 630VDC RADIAL	0

Film Capacitors

1. Overview

Film capacitors are a type of electronic component using plastic films (e.g., polypropylene, polyester) as dielectric materials. They are non-polarized capacitors with high insulation resistance, low loss, and excellent long-term stability. These capacitors play critical roles in power electronics, automotive systems, renewable energy, and consumer devices due to their reliability and high voltage-handling capabilities.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Polyester (PET)	Low cost, compact size, moderate temperature stability	General-purpose circuits, consumer electronics
Polypropylene (PP)	High voltage resistance, low dielectric loss, excellent thermal stability	Power supplies, motor drives, EV charging systems
Polycarbonate (PC)	High precision, low moisture absorption	Medical devices, aerospace instrumentation
Polyphenylene Sulfide (PPS)	High-temperature endurance, flame retardant	Automotive electronics, industrial automation
Polyimide (PI)	Ultra-high temperature resistance (up to 200 C), compact design	Aviation systems, downhole drilling equipment

3. Structure and Composition

Film capacitors typically consist of metalized plastic films wound or stacked into a cylindrical/rectangular core. The dielectric thickness ranges from 1-10 m, with electrode materials like zinc or aluminum. The assembly is encapsulated in epoxy resin or plastic housings. Key structural elements include:

Dielectric layer (plastic film)
Metallized electrode patterns
Termination electrodes (sprayed metal contacts)
Protective outer coating

4. Key Technical Parameters

Parameter	Description	Importance
Capacitance Range	0.1 nF - 100 F	Determines energy storage capacity
Rated Voltage	50 V - 10 kV	Defines operational safety limits
Capacitance Tolerance	1% to 20%	Affects circuit precision
Dissipation Factor	0.0001 - 0.05	Indicates energy efficiency
Insulation Resistance	10^9 - 10^12	Reflects leakage current performance
Operating Temperature	-55 C to +155 C	Dictates environmental adaptability
Temperature Coefficient	50 to 400 ppm/ C	Impacts stability under thermal stress
Stability	C/C < 2% over 10 years	Long-term reliability indicator

5. Application Fields

Main industries and equipment:

Power electronics: AC/DC converters, frequency inverters
Automotive: Electric vehicle (EV) on-board chargers, battery management systems
Consumer electronics: LED lighting, plasma TVs
Industrial: Uninterruptible power supplies (UPS), welding machines
Renewable energy: Solar inverters, wind turbine converters

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
TDK Corporation	B32656 series	PP film, 480 F/1200 V for industrial inverters
KEMET	C4AZ-X7R4U3D106KE	Automotive-grade DC link capacitor
AVX	6TP105K	Tantalum polymer hybrid for aerospace
Vishay	MKP1848 series	Self-healing PP technology

7. Selection Guidelines

Key considerations:

Determine required capacitance and voltage ratings with safety margins
Assess environmental conditions (temperature, humidity, vibration)
Evaluate dielectric absorption and frequency response requirements
Consider packaging constraints (through-hole vs. surface-mount)
Analyze cost-performance trade-offs for mass production

8. Industry Trends

Emerging trends include: development of high-power-density capacitors for EVs, adoption of nanodielectric materials for improved thermal stability, growth of biodegradable film technologies, and integration of smart monitoring features in industrial capacitors. The market is projected to grow at 7.2% CAGR (2023-2030), driven by renewable energy and 5G infrastructure demands.