EPCOS Film Capacitors

A Global Leader in Film Capacitors

Today, higher performance is expected of all the components used in new power electronics, from semiconductors to passive components, in terms of both electrical and climatic operating conditions. Capacitors are no exception and challenging standards are being demanded, in which the reliability of the product is becoming increasingly critical.

EPCOS Film Capacitors offer many advantages over other capacitor technologies which include self healing features, high current capability, low inductance, flexible design, various mounting options, thermal and electrical stability, reliability and a long service life.

In addition, whenever there are requirements for much higher currents, multi-pin and 4-pin configurations are available that further improve the current handling capability of the standard 2-pin capacitors.

Which EPCOS X2 EMI Suppression Capacitor is right for your design?
EPCOS X2 EMI Suppression Capacitor
Use this selector guide to find the right DC-Link Capacitor
EPCOS X2 EMI Suppression Capacitor

EMI X1/ X2 / Y1 / Y2

B3292xA/B4 Industrial Grade (X2)

Features

  • Increased rated voltage of 350 VAC
  • High current capability
  • Stable capacitance, even under severe ambient conditions
  • UL and EN approved
  • Complies with UL 94 V-0 standard
 

Applications

  • Input and output filters
  • Photovoltaic inverters
  • Capacitive power supplies

 

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B3292xH/J High Humidity (X2)

Features

  • Excellent self-healing properties
  • High maximum operating temperature: up to 110ºC
  • Stable capacitance values even under extremely humid conditions
 

Applications

  • Capacitive power supplies in outdoor energy meters
  • Across-the-line industrial applications

 

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B3292xC/D Standard (X2)

Features

  • Very small dimensions
  • Self-healing properties
  • RoHS-compatible
  • Halogen-free capacitors available on request
 

Applications

  • X2 class for interference suppression
  • "Across the line" applications

 

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B32393xA/B Heavy Duty (X2)

Features

  • High stability of capacitance value
  • X2 safety approval (up to 2.2 µF)
  • RoHS-compatible
 

Applications

  • For connection in series with the mains
  • For severe ambient conditions
  • Capacitive power supply applications
  • Energy meters

 

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B3291x Standard (X1)

Features

  • Very small dimensions
  • Good self-healing properties
  • High voltage capability
  • RoHS-compatible
  • Halogen-free capacitors available on request Up to 530 Vac High Voltage
 

Applications

  • X1 class for interference suppression
  • "Across the line" applications

 

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B3202x Standard (Y2)

Features

  • Small dimensions
  • High voltage capacity
  • Self-healing properties
 

Applications

  • Y2 class for interference suppression
  • "Line to ground" applications

 

B81123C Standard (Y1)

Features

  • Self-healing properties
 

Applications

  • Y1 class for interference suppression
  • "Line to ground" applications

 

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DC Link

B3267x MKP High Power

Features

  • Capacitance value up to 270 µF
  • High CV product, compact
  • Good self-healing properties
  • Over-voltage capability
  • Low losses with high current capability
  • High reliability
  • Long useful life
 

Applications

  • Frequency converters
  • Industrial and high-end power supplies
  • Solar inverters

 

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B3277x MKP High Density

Features

  • Capacitance values up to 480 µF
  • High CV product, compact
  • Good self-healing properties
  • Over-voltage capability
  • Low losses with high current capability
  • High reliability
  • Long useful life
  • RoHS-compatible
 

Applications

  • Frequency converters
  • Industrial and high-end power supplies
  • Solar inverters

 

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B3277xP MKP High Temperature

Features

  • High permissible operating temperature of up to 125°C
  • Low ESL and ESR values
  • Broad range of capacitance values from 1 µF to 50 µF
  • High pulse strength of up to 23.5 AMS
 

Applications

  • Inverters
  • Power supply units
  • DC-DC converters and compressors for automotive electronics

 

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General Purpose

B3265x DC & AC Applications

Features

  • High pulse strength
  • High contact reliability
  • RoHS-compatible
  • Halogen-free capacitors available on request
 

Applications

  • Blocking
  • Coupling, decoupling
  • Bypassing
  • RFI for automotive

 

B3252x DC & AC Applications

Features

  • High pulse strength
  • High contact reliability
  • RoHS-compatible
 

Applications

  • Blocking
  • Coupling, decoupling
  • Bypassing
  • RFI for automotive

 

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Power Factor Correction (PFC)

B3267xP Standard

Features

  • Very compact design
  • Very small dimensions
  • Very high ripple and peak current
  • High frequency AC operation capability
  • High voltage capability
  • Excellent self-healing property
  • RoHS-compatible
  • Halogen-free capacitors available on request
 

Applications

  • PFC (Power Factor Correction)

 

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B3267xZ Higher Vac

Features

  • High frequency capability
  • Very small dimensions
  • RoHS-compatible
  • Halogen-free capacitors available on request
 

Applications

  • PFC (Power Factor Correction)
  • Not suitable for "across the line" applications

 

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Snubbering / Resonant

B3265xS Large Capacitance Range

Features

  • High pulse strength and high contact reliability
  • Very low inductance
  • RoHS-compatible
 

Applications

  • IGBT
  • Snubbering

 

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B32686S Terminal Straps

Features

  • Very high pulse strength
  • High current
  • Highest possible contact reliability
  • RoHS-compatible
 

Applications

  • Snubbering
  • Filtering
  • IGBT

 

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B3268xS Through Hole

Features

  • Very high pulse strength
  • Highest possible contact reliability
  • Self-healing properties
 

Applications

  • Smoothing Snubbering
  • Electronic ballast
  • Switch mode power supplies
  • High-frequency AC loads
  • High voltages and very high currents

 

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B3264xB Double Sided MKP

Features

  • Particularly high-pulse strength
  • Compact dimensions
  • High-current capability up to more than 10 ARMS

 

Applications

  • Resonant circuits of power supplies with an LLC topology
  • Switch-mode power supplies
  • Ballasts for lighting systems

 

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AC Output Filtering

B3275x AC Filtering

Features

  • Optimized AC voltage performance
  • High ripple current/frequency capability
  • Small dimensions
  • For PCB mounting
 

Applications

  • Output AC filtering for power converters
  • UPS, solar inverters, motor drives

 

B32355C Motor Run

Features

  • High insulation resistance
  • IEC 60335-1 compatible
  • Low dissipation factor
 

Applications

  • General sine wave applications mainly as motor run capacitor

 

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Power Capacitors

B3236 Power Capacitors

Features

  • -40°C - 70°C
  • Chassis Mount
  • 250 V to 680 V voltage rating
 

Applications

  • Industrial Drives
  • Wind Power Systems
  • Lasers for Medical Engineering

 

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More Information

Film Capacitor, Inductor, Circuit Protection, and Thermistor Sample Kits

Digi-Key and EPCOS provide a wide variety of film capacitor, inductor, circuit protection, and thermistor sample kits for an easy design-in tool.

 

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Resources

Product Training Modules

More Resources

Videos

EPCOS X2 EMI Suppression Capacitors EMI Suppression Capacitors
  High Power
B3267x
High Density
B3277x
High Temperature
B3277xP
Dielectric Metallized Polypropylene(MKP) Metallized Polypropylene(MKP) Metallized Polypropylene(MKP)
Vdc 300, 450, 630, 750, 875 450, 800, 110, 1300 630,700,840
Capacitance Range 0.47 ~ 270 uF 1.5 ~ 480 uF 1.0 ~ 50 uF
Operating Temp. Max 105°C Max 105°C Max 125°C
Lead Spacing 27.5 ~ 52.5 mm 27.5 ~ 52.5 mm 27.5 ~ 52.5 mm
Current Handling @ 10 kHz 5 Amps – 108 Amps 5 Amps – 79.5 Amps 3 Amps - 25 Amps
Climatic test conditions 40 °C / 93% RH 40 °C / 93% RH 40°C / 93% RH / Vrated
60°C / 93% RH / Vrated
56 days 56 days 1000 hrs @ 40°C
500 hrs @ 60°C
AEC-Q200 No No Yes
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X2 EMI Suppression Capacitor Selector Guide

EPCOS has a wide variety of X2 series for across the line applications. Different series of products offer unique features such as high pulse load capability, high capacitance stability over the lifetime, and over harsh operating conditions such as high humidity and high temperature. Each series comply and is approved under safety standard, UL, ENEC, CSA and CQC.
  Standard Series High Humidity Series Heavy Duty Series Industrial Grade Series
  B3292xC/D B3292xH/J B3293xA/B B3292xA4/B4
Dielectric Metallized
Polypropylene(MKP)
Metallized
Polypropylene(MKP)
Metallized
Polyester(MKT)
Metallized
Polypropylene(MKP)
Voltage 305 Vac 305 Vac 305 Vac 350 Vac
Capacitance Range 0.010 - 30 uF 0.10 - 15 uF 0.047 - 2.2 uF 0.47 ~ 15 uF
Operating Temp max 110°C max 110°C max 105°C max 110°C
Lead Spacing 10 - 52.5 mm 15.0 - 37.5 mm 15.0 - 37.5 mm 27.5 - 52.5 mm
Lifetest Conditions 1,25Vr @ 105°C 1000 hours 1,25Vr @ 105°C 1000 hours 1,25Vr @ 105°C 1000 hours 1,25Vr @ 105°C 1000 hours
Climatic Test Conditions 40°C / 93%rh / 0V 40°C / 93%rh / 0V 40°C / 93%rh / 0V 40°C / 93%rh / 0V
56 days 56 days 56 days 56 days
Specific Requirements No specific request 85°C / 85%rh / 240Vac 85°C / 85%rh / 290Vac 85°C / 85%rh / 330Vac
1000 hours 1000 hours 1000 hours
Safety Standards (ENEC, UL, CSA, CQC) (ENEC, UL, CSA, CQC) (ENEC, UL, CSA, CQC) (ENEC, UL, CSA, CQC)
Automotive Grade No Yes Yes Yes
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