Film Capacitors

Part Number	Description / PDF	Quantity
F339X122248MD02W0 Vishay BC Components/Beyshlag/Draloric	CAP FILM 2200PF 20% 1KVDC RADIAL	0
FKP2C006801D00HSSD WIMA	CAP FILM 680PF 2.5% 63VDC RAD	392
MKS2F033301K00JSSD WIMA	CAP FILM 0.33UF 5% 250VDC RAD	0
BFC237075104 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.1UF 10% 63VDC RADIAL	635
MKP1839118631G Vishay BC Components/Beyshlag/Draloric	CAP FILM 180PF 1% 630VDC AXIAL	0
MKP4G043307E00KSSD WIMA	CAP FILM 3.3UF 10% 400VDC RAD	104
947D181K122BCMSN Cornell Dubilier Electronics	CAP FILM 180UF 10% 1.2KVDC RAD	0
SMC5.7104J50J35TR12 KEMET	CAP FILM 0.1UF 5% 50VDC 2220	914
205PSB122K4R Cornell Dubilier Electronics	CAP FILM 2UF 10% 1.2KVDC RADIAL	742
B32529C0105K289 TDK EPCOS	CAP FILM 1UF 10% 63VDC RADIAL	663
MKP1839182632R Vishay BC Components/Beyshlag/Draloric	CAP FILM 820PF 2% 630VDC AXIAL	0
R76QF082050H0J KEMET	CAP FILM 820PF 5% 1KVDC RADIAL	2650
ECQ-E2125KFW Panasonic	CAP FILM 1.2UF 10% 250VDC RADIAL	0
B32653A8223J000 TDK EPCOS	CAP FILM 0.022UF 5% 2KVDC RADIAL	0
R60DR52204030K KEMET	CAP FILM 22UF 10% 63VDC RADIAL	241
B32560J6222J189 TDK EPCOS	CAP FILM 2200PF 5% 400VDC 2DIP	0
MKS4G041006B00JSSD WIMA	CAP FILM 1UF 5% 400VDC RAD	22
CP-OD716-470-400V TubeDepot	CAP FILM .470UF 400V 716 SERIES	58
150105J250JE Cornell Dubilier Electronics	CAP FILM 1UF 5% 250VDC AXIAL	11692100
BFC237344475 Vishay BC Components/Beyshlag/Draloric	CAP FILM 4.7UF 5% 250VDC 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.