Film Capacitors

Part Number	Description / PDF	Quantity
MKP386M482160JT4 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.82UF 5% 1.6KVDC SCREW	0
160155J250O-F Cornell Dubilier Electronics	CAP FILM 1.5UF 5% 250VDC RADIAL	0
F339X123333KCM2B0 Vishay BC Components/Beyshlag/Draloric	CAP FILM 3300PF 10% 800VDC RAD	0
QXK2E153KTP Nichicon	CAP FILM 0.015UF 10% 250VDC RAD	2341
R66PD1220Z310K KEMET	CAP FILM 2200PF 10% 630VDC RAD	1593
PMB1704350KVR Nichicon	700V,3.5UF,10 PERCENT, LUG MOUNT	0
C4AQQLU4140M11J KEMET	CAP FILM 1.4UF 5% 1.1KVDC RADIAL	0
MO-1431-6222K TubeDepot	CAP FILM .0022UF 630V XICON	0
947D631K102BJMSN Cornell Dubilier Electronics	CAP FILM 630UF 10% 1KVDC RADIAL	0
MKT1820547016V Vishay BC Components/Beyshlag/Draloric	CAP FILM 4.7UF 20% 100VDC RADIAL	0
160104K160C-F Cornell Dubilier Electronics	CAP FILM 0.1UF 10% 160VDC RADIAL	0
EEC2E505HQA402 Nichicon	CAP FILM 5UF 250VAC QC TERM	69
B32652J1103J000 TDK EPCOS	CAP FILM 10000PF 5% 1.6KVDC RAD	2429
B32620A6472J289 TDK EPCOS	CAP FILM 4700PF 5% 630VDC RADIAL	0
B32671P4104K000 TDK EPCOS	CAP FILM 0.1UF 10% 450VDC RADIAL	5233
B32653A3514J000 TDK EPCOS	CAP FILM 0.51UF 5% 250VDC RADIAL	0
EZP-V60356MTT Panasonic	CAP FILM 35UF 10% 600V RADIAL	149
FCP0805H561J-J1 Cornell Dubilier Electronics	CAP FILM 560PF 5% 50VDC 0805	0
MKT1818422064W Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.22UF 5% 63VDC RADIAL	0
R60PI310040L0K KEMET	CAP FILM 0.1UF 10% 630VDC RADIAL	520

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.