Film Capacitors

Part Number	Description / PDF	Quantity
ECQ-E6104JF Panasonic	CAP FILM 0.1UF 5% 630VDC RADIAL	0
BFC238322184 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.18UF 5% 630VDC RADIAL	0
SFT44T55K391B-F Cornell Dubilier Electronics	CAP FILM 55UF 10% 440VAC RADIAL	0
B32933A3414K000 TDK EPCOS	CAP FILM 0.41UF 10% 500VDC RAD	0
168562J100A-F Cornell Dubilier Electronics	CAP FILM 5600PF 5% 100VDC RADIAL	0
184473J250RBB-F Cornell Dubilier Electronics	CAP FILM 0.047UF 5% 250VDC RAD	0
B32320I1655K000 TDK EPCOS	6.5MFD 1300V PP 35X53 PBT 5 PIN	0
F17723152200 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.015UF 20% 630VDC RAD	0
BFC247059472 Vishay BC Components/Beyshlag/Draloric	CAP FILM 4700PF 5% 400VDC RADIAL	0
BFC241871804 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.18UF 2% 250VDC RADIAL	0
B33331V7166J080 TDK EPCOS	CAP FILM 16UF 5% 460VAC RADIAL	48
MKP1848C64050JP4 Vishay BC Components/Beyshlag/Draloric	CAP FILM 40UF 5% 500VDC RADIAL	0
BFC2370CC334 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.33UF 5% 100VDC RADIAL	0
B32621A4153M289 TDK EPCOS	CAP FILM 0.015UF 20% 400VDC RAD	0
BFC241743303 Vishay BC Components/Beyshlag/Draloric	CAP FILM 0.033UF 2% 160VDC RAD	0
168563J63A-F Cornell Dubilier Electronics	CAP FILM 0.056UF 5% 63VDC RADIAL	0
LDEEA1330JA0N00 KEMET	CAP FILM 3300PF 5% 100VDC 1206	2810
160474J630Q-F Cornell Dubilier Electronics	CAP FILM 0.47UF 5% 630VDC RADIAL	0
BFC246804155 Vishay BC Components/Beyshlag/Draloric	CAP FILM 1.5UF 10% 100VDC RADIAL	0
CMPX475K301L465B-51X30.5X20 Trigon Components	CMPX-X1 FILM CAP 4.7UF 10%	10

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.