Film Capacitors

Image Part Number Description / PDF Quantity Rfq
FPX86Y1254J--

FPX86Y1254J--

Elco (AVX)

CAP FILM 3000 V 1.25UF

12

CB047G0683JBC

CB047G0683JBC

Elco (AVX)

CAP FILM 0.068UF 5% 250VDC 2220

0

FFV34H0406K--

FFV34H0406K--

Elco (AVX)

CAP FILM 40UF 10% 300VDC RADIAL

0

FFLR6B0108KJE

FFLR6B0108KJE

Elco (AVX)

CAP FILM 1000UF, 800VDC

0

FFV36J0256K--

FFV36J0256K--

Elco (AVX)

CAP FILM 25UF 10% 500VDC RADIAL

56

CB028D0223JBA

CB028D0223JBA

Elco (AVX)

CAP FILM 0.022UF 5% 63VDC 1210

0

FFV36C0106K--

FFV36C0106K--

Elco (AVX)

CAP FILM 10UF 10% 900VDC RADIAL

21

CB017D0472JBA

CB017D0472JBA

Elco (AVX)

CAP FILM 4700PF 5% 63VDC 1206

0

FFB56J0136KJC

FFB56J0136KJC

Elco (AVX)

CAP FILM 13UF 10% 525VDC RADIAL

0

CB052K0273JBC

CB052K0273JBC

Elco (AVX)

CAP FILM 0.027UF 5% 630VDC 2824

0

FFV36A0206K--

FFV36A0206K--

Elco (AVX)

CAP FILM 20UF 10% 700VDC RADIAL

87

FFV34I0306K--

FFV34I0306K--

Elco (AVX)

CAP FILM 30UF 10% 400VDC RADIAL

0

FFV34F0556K--

FFV34F0556K--

Elco (AVX)

CAP FILM 55UF 10% 160VDC RADIAL

0

FFLI6U0437K--

FFLI6U0437K--

Elco (AVX)

CAP FILM 430UF 10% 1.15KVDC RAD

10

CB018B0102JBA

CB018B0102JBA

Elco (AVX)

CAP FILM 1000PF 5% 16VDC 1206

0

CB037D0104KBA

CB037D0104KBA

Elco (AVX)

CAP FILM 0.1UF 10% 63VDC 1812

0

FE52N6J0506KB

FE52N6J0506KB

Elco (AVX)

CAP FILM 50UF 10% 550VDC RADIAL

111

FFB44E0476K--

FFB44E0476K--

Elco (AVX)

CAP FILM 47UF 10% 100VDC RADIAL

267

CB018D0103JBA

CB018D0103JBA

Elco (AVX)

CAP FILM 10000PF 5% 63VDC 1206

0

FFVI6A0227K--

FFVI6A0227K--

Elco (AVX)

CAP FILM 220UF 10% 700VDC 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.

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