Film Capacitors

Part Number	Description / PDF	Quantity
DME6P22K-F Cornell Dubilier Electronics	CAP FILM 0.22UF 10% 630VDC RAD	9386000
FCA1210C105M-G2 Cornell Dubilier Electronics	CAP FILM 1UF 20% 16VDC 1210	4494
947D641K122DHRSN Cornell Dubilier Electronics	CAP FILM 640UF 10% 1.2KVDC RAD	0
684PHB700K2H Cornell Dubilier Electronics	CAP FILM 0.68UF 10% 700VDC RAD	0
167223K250A-F Cornell Dubilier Electronics	CAP FILM 0.022UF 10% 250VDC RAD	0
944U101K102ABI Cornell Dubilier Electronics	CAP FILM 100UF 10% 1KVDC RADIAL	47
334LC4102K5LM8 Cornell Dubilier Electronics	CAP FILM 0.33UF 1KVAC CHAS MT	48
WMF2D1K-F Cornell Dubilier Electronics	CAP FILM 1000PF 10% 250VDC AXIAL	1103
184274K63RAA-F Cornell Dubilier Electronics	CAP FILM 0.27UF 10% 63VDC RADIAL	0
125PSB152K4R Cornell Dubilier Electronics	CAP FILM 1.2UF 10% 1.5KVDC RAD	0
335MKP275KJ Cornell Dubilier Electronics	CAP FILM 3.3UF 10% 310VAC RADIAL	0
105PSB700K2H Cornell Dubilier Electronics	CAP FILM 1UF 10% 700VDC RADIAL	0
685MMR250K Cornell Dubilier Electronics	CAP FILM 6.8UF 10% 250VDC RADIAL	1010
FCP1206H472J-H1 Cornell Dubilier Electronics	CAP FILM 4700PF 5% 50VDC 1206	0
SFA44T10K388B-F Cornell Dubilier Electronics	CAP FILM 10UF 10% 440VAC RADIAL	0
171683J160D-F Cornell Dubilier Electronics	CAP FILM 0.068UF 5% 160VDC RAD	0
MMP6P1K-F Cornell Dubilier Electronics	CAP FILM 0.1UF 10% 630VDC AXIAL	21
T6W2NR-F Cornell Dubilier Electronics	CAP FILM 2UF 10% 600VDC RADIAL	0
185222K100RAB-F Cornell Dubilier Electronics	CAP FILM 2200PF 10% 100VDC RAD	0
DME6W1P5K-F Cornell Dubilier Electronics	CAP FILM 1.5UF 10% 630VDC RADIAL	29

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.