Film Capacitors

Image Part Number Description / PDF Quantity Rfq
ECQ-E6274JF

ECQ-E6274JF

Panasonic

CAP FILM 0.27UF 5% 630VDC RADIAL

661

ECW-U2824KCZ

ECW-U2824KCZ

Panasonic

CAP FILM 0.82UF 10% 250VDC 6039

5637

ECQ-UBAF103VH

ECQ-UBAF103VH

Panasonic

CAP FILM 0.01UF 10% 300VAC RADIA

0

ECQ-E4125KFB

ECQ-E4125KFB

Panasonic

CAP FILM 1.2UF 10% 400VDC RADIAL

0

ECW-FD2W684JB

ECW-FD2W684JB

Panasonic

CAP FILM 0.68UF 5% 450VDC RADIAL

0

ECW-H12104JV

ECW-H12104JV

Panasonic

CAP FILM 0.1UF 5% 1.25KVDC RAD

0

ECQ-E4123JFW

ECQ-E4123JFW

Panasonic

CAP FILM 0.012UF 5% 400VDC RAD

0

EZP-E80556MTA

EZP-E80556MTA

Panasonic

CAP FILM 55UF 10% 800VDC RADIAL

50

ECQ-E6473JF3

ECQ-E6473JF3

Panasonic

CAP FILM 0.047UF 5% 630VDC RAD

0

ECQ-E6273KF9

ECQ-E6273KF9

Panasonic

CAP FILM 0.027UF 10% 630VDC RAD

0

ECQ-E4104JF

ECQ-E4104JF

Panasonic

CAP FILM 0.1UF 5% 400VDC RADIAL

0

ECW-FD2W475KC

ECW-FD2W475KC

Panasonic

CAP FILM 4.7UF 10% 450VDC RADIAL

0

EZP-V80905LTT

EZP-V80905LTT

Panasonic

CAP FILM 9UF 10% 800V RADIAL

300

EZP-Q33156MTA

EZP-Q33156MTA

Panasonic

CAP FILM 15UF 5% 330VAC RADIAL

100

ECH-U1224JCV

ECH-U1224JCV

Panasonic

CAP FILM 0.22UF 5% 100VDC 2825

340

ECH-U1H223JB5

ECH-U1H223JB5

Panasonic

CAP FILM 0.022UF 5% 50VDC 1210

2849

ECH-U1H182JX5

ECH-U1H182JX5

Panasonic

CAP FILM 1800PF 5% 50VDC 0805

12926

ECW-FD2W225JC

ECW-FD2W225JC

Panasonic

CAP FILM 2.2UF 5% 450VDC RADIAL

0

ECQ-E1185RJF

ECQ-E1185RJF

Panasonic

CAP FILM 1.8UF 5% 100VDC RADIAL

0

ECQ-E2155RJB

ECQ-E2155RJB

Panasonic

CAP FILM 1.5UF 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:

  1. Determine required capacitance and voltage ratings with safety margins
  2. Assess environmental conditions (temperature, humidity, vibration)
  3. Evaluate dielectric absorption and frequency response requirements
  4. Consider packaging constraints (through-hole vs. surface-mount)
  5. 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.

RFQ BOM Call Skype Email
Top