Film Capacitors

Image Part Number Description / PDF Quantity Rfq
FB37M6K0156KC

FB37M6K0156KC

Elco (AVX)

CAP FILM 15UF 10% 1KVDC RADIAL

3081

FFVE6C0476KJE

FFVE6C0476KJE

Elco (AVX)

CAP FILM 47UF 10% 900VDC RADIAL

16

FFB54E0686K--

FFB54E0686K--

Elco (AVX)

CAP FILM 68UF 10% 100VDC RADIAL

14

CB162I0104KBC

CB162I0104KBC

Elco (AVX)

CAP FILM 0.1UF 10% 400VDC 4030

1560

FFB56A0106K--

FFB56A0106K--

Elco (AVX)

CAP FILM 10UF 10% 720VDC RADIAL

288

FFVE6B0107K--

FFVE6B0107K--

Elco (AVX)

CAP FILM 100UF 10% 800VDC RADIAL

51

FFLR6L0427KJE

FFLR6L0427KJE

Elco (AVX)

CAP FILM 420UF, 1100VDC

0

CB172E0225KBC

CB172E0225KBC

Elco (AVX)

CAP FILM 2.2UF 10% 100VDC 5040

0

FFB24D0476K--

FFB24D0476K--

Elco (AVX)

CAP FILM 47UF 10% 75VDC RADIAL

220

FLBA6J0576K03

FLBA6J0576K03

Elco (AVX)

CAP FILM 57.7UF 10% 525VAC RAD

0

FFV36A0146K--

FFV36A0146K--

Elco (AVX)

CAP FILM 14UF 10% 700VDC RADIAL

72

FFB46J0106K--

FFB46J0106K--

Elco (AVX)

CAP FILM 10UF 10% 525VDC RADIAL

217

CB037D0154KBC

CB037D0154KBC

Elco (AVX)

CAP FILM 0.15UF 10% 63VDC 1812

0

CB027C0333JBA

CB027C0333JBA

Elco (AVX)

CAP FILM 0.033UF 5% 25VDC 1210

0

CB017C0102JBA

CB017C0102JBA

Elco (AVX)

CAP FILM 1000PF 5% 25VDC 1206

0

CB037E0104KBA

CB037E0104KBA

Elco (AVX)

CAP FILM 0.1UF 10% 100VDC 1812

0

FE37L6A0226KA

FE37L6A0226KA

Elco (AVX)

CAP FILM 22UF 10% 700VDC RADIAL

0

CB017D0152JBA

CB017D0152JBA

Elco (AVX)

CAP FILM 1500PF 5% 63VDC 1206

0

FFV34H0506K--

FFV34H0506K--

Elco (AVX)

CAP FILM 50UF 10% 300VDC RADIAL

85

CB052E0474KBC

CB052E0474KBC

Elco (AVX)

CAP FILM 0.47UF 10% 100VDC 2824

224

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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