Film Capacitors

Image Part Number Description / PDF Quantity Rfq
BF014D0273K

BF014D0273K

Elco (AVX)

CAP FILM 0.027UF 10% 63VDC RAD

370

CB037D0473JBA

CB037D0473JBA

Elco (AVX)

CAP FILM 0.047UF 5% 63VDC 1812

0

FFVI6L0476K--

FFVI6L0476K--

Elco (AVX)

CAP FILM 47UF 10% 1.1KVDC RADIAL

0

FFLI6B0687K--

FFLI6B0687K--

Elco (AVX)

CAP FILM 680UF 10% 800VDC RADIAL

17

FE37M6C0206KB

FE37M6C0206KB

Elco (AVX)

CAP FILM 20UF 10% 900VDC RADIAL

0

CB028B0473JBA

CB028B0473JBA

Elco (AVX)

CAP FILM 0.047UF 5% 16VDC 1210

0

CB018B0153J--

CB018B0153J--

Elco (AVX)

CAP FILM 0.015UF 5% 16VDC 1206

0

CB052G0224JBC

CB052G0224JBC

Elco (AVX)

CAP FILM 0.22UF 5% 250VDC 2824

0

CB037D0104JBA

CB037D0104JBA

Elco (AVX)

CAP FILM 0.1UF 5% 63VDC 1812

2913

CB037G0472JBA

CB037G0472JBA

Elco (AVX)

CAP FILM 4700PF 5% 250VDC 1812

0

FFB54H0276K--

FFB54H0276K--

Elco (AVX)

CAP FILM 27UF 10% 300VDC RADIAL

104

CB017D0102JBA

CB017D0102JBA

Elco (AVX)

CAP FILM 1000PF 5% 63VDC 1206

0

FFB26C0275K--

FFB26C0275K--

Elco (AVX)

CAP FILM 2.7UF 10% 900VDC RADIAL

50

CB162G0224K--

CB162G0224K--

Elco (AVX)

CAP FILM 0.22UF 10% 250VDC 4030

0

CB047D0224JBC

CB047D0224JBC

Elco (AVX)

CAP FILM 0.22UF 5% 63VDC 2220

0

CB052D0105KBC

CB052D0105KBC

Elco (AVX)

CAP FILM 1UF 10% 63VDC 2824

0

FFVS6L0956K--

FFVS6L0956K--

Elco (AVX)

CAP FILM 95UF 10% 1KVDC RADIAL

0

CB017E0103JBA

CB017E0103JBA

Elco (AVX)

CAP FILM 10000PF 5% 100VDC 1206

11460

CB042G0124JBC

CB042G0124JBC

Elco (AVX)

CAP FILM 0.12UF 5% 250VDC 2220

4625

FB37M6P0106KC

FB37M6P0106KC

Elco (AVX)

CAP FILM 10UF 10% 1.2KVDC RADIAL

35

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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