Film Capacitors

Part Number	Description / PDF	Quantity
R60MI3470AA30K KEMET	CAP FILM 0.47UF 10% 400VDC RAD	1000
B32672L8472K000 TDK EPCOS	CAP FILM 4700PF 10% 2KVDC RADIAL	0
R73TR2470SE00J KEMET	CAP FILM 0.047UF 5% 1.6KVDC RAD	242
PHE426HJ6100JR05 KEMET	CAP FILM 0.1UF 5% 250VDC RADIAL	5932
BFC237353184 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.18UF 10% 400VDC RAD	0
BFC247066102 Vishay BC Components/Beyshlag/Draloric	CAP FILM 1000PF 5% 400VDC RADIAL	0
BFC238340512 Vishay BC Components/Beyshlag/Draloric	CAP FILM 5100PF 5% 1.4KVDC RAD	0
B32776H0126K000 TDK EPCOS	CAP FILM 12UF 10% 920VDC RADIAL	391
MKT1820322255 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.022UF 10% 250VDC RAD	0
ECQ-E6824JFW Panasonic	CAP FILM 0.82UF 5% 630VDC RADIAL	0
150123K400BB Cornell Dubilier Electronics	CAP FILM 0.012UF 400VDC AXIAL	5040
562MKP275KC Cornell Dubilier Electronics	CAP FILM 5600PF 10% 310VAC RAD	0
B25620C1487K101 TDK EPCOS	CAP FILM 480UF 10% 1.1KVDC RAD	0
B32621A0103K189 TDK EPCOS	CAP FILM 10000PF 10% 1KVDC RAD	0
B32932A3683M000 TDK EPCOS	CAP FILM 0.068UF 20% 305VAC RAD	0
MKT1820515064 Vishay BC Components/Beyshlag/Draloric	CAP FILM 1.5UF 5% 63VDC RADIAL	0
B32529C3333K000 TDK EPCOS	CAP FILM 0.033UF 10% 250VDC RAD	378
LDECC3100MA5N00 KEMET	CAP FILM 0.1UF 20% 50VDC 1812	0
CP-VO-S-01-600V TubeDepot	CAP FILM .01UF 600V OIL	373
MKT1820310105 Vishay BC Components/Beyshlag/Draloric	CAP FILM 10000PF 10% 1KVDC RAD	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.