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- EPCOS products are part of the product portfolio of TDK Corporation, one of the leading manufacturers of electronic components, modules, systems and devices. The broad portfolio of passive electronic components includes capacitors, ferrites, inductors, and high-frequency components such as surface acoustic wave (SAW) filter products, piezo and protection components, and sensors. These components are marketed under the product brands TDK and EPCOS.

Circuit Protectors

Circuit Protection Thumbnail

EPCOS offers one of the broadest product lines in the industry delivering high energy transient protection, ESD protection and thermal management. Learn More

P27 NTC Inrush Current Limiters

Image of EPCOS P27 Series ICLs

TDK presents the P27 series of EPCOS NTC ICLs with a nominal disk diameter of 27 mm and lead spacing of 7.5 mm. Learn More

T Series ThermoFuse™ Varistors

Image of EPCOS T Series ThermoFuse Varistors

EPCOS' T series of ThermoFuse varistors is a housed component, consisting of a disk varistor in series with a thermally coupled fuse. Learn More

Product Listing View All

Featured Products

Image of Epcos' Humidity Resistant X2 EMI Capacitors

Humidity-Resistant X2 EMI Capacitors

TDK Corporation presents their series of EPCOS X2 EMI suppression capacitors with stable capacitance values, even under extremely humid conditions. Learn More

Image of Epcos' High Current Chokes

High Current Chokes

Compact electrical and electronic equipment primarily generates common-mode interference. In order to meet the safety requirements (keeping within the leakage current limits), chokes with a high asymmetrically effective inductance must be used. Learn More

Newest Products View All (44)

Image of EPCOS' Ferrite Cores and Accessories

Ferrite Cores and Accessories

TDK Corporation offers a large selection of cutting-edge EPCOS brand ferrites cores and accessories.

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Image of Epcos' B43640/B43644 Series Film Capacitors

B43640/B43644 Snap-In Aluminum Electrolytic Capacitors

TDK Corporation presents more compact versions within two series of aluminum electrolytic capacitors with a snap-in design for rated voltages of 400 V and 450 V.

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Image of EPCOS' Superior Series PTC Hot Spot

Superior Series PTC Thermistors

TDK introduces portfolio of EPCOS PTC thermistors features a series that is particularly suited for the thermal management of IT equipment.

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Image of EPCOS High Demand MFP Film Capacitors

B3268xA Series MFP Film Capacitors

TDK Corporation presents the B3268xA Series MFP Film Capacitors of EPCOS metallized polypropylene (MFP) film capacitors with high pulse strength and current capability.

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Image of TDK/EPCOS ERU19 SMT Power Inductors

ERU19 SMT Power Inductors

TDK Corporation has extended its portfolio of compact designed EPCOS ERU SMT power inductors with the ERU19 choke series that comprises ten different types

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Image of EPCOS' B2562 Series Power Caps

B2562 Series Power Capacitors

EPCOS power capacitors offer high rated voltage, high peak current capability and customized configurations, making them ideal for renewable energy generation applications.

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Tools & Support

Image of EPCOS X2 EMI Suppression Capacitors

Film Capacitor Service Life Tool

The film capacitor calculation tool offers a smart search option. Users can enter the key load parameters of their application to find suitable film cap product types. By double-clicking a capacitor in the list it is easy to start the calculation for this specific type. Learn More

Image of EPCOS' Design Tools Data

NTC R/T Calculation Tool

This NTC thermistor web based tool allows for the calculation of the resistance/temperature characteristics. R/T characteristics can be individually calculated and manipulated by adjusting the temperature range and the resistance tolerance and selecting the desired temperature intervals. The results can be output as PDF files or exported in spreadsheet-compatible csv format. Learn More

Image of EPCOS Design Tools Film Caps

Snubber Capacitor Finder

Finding the right snubber capacitor is easy using this cap finder. Just enter the manufacturer’s IGBT part number to obtain a search result of all suitable EPCOS snubber capacitors. By selecting rated voltage and/or capacitance as well as film/foil arrangement the number of capacitors in the search result can be reduced in a simple way. Learn More

Image of EPCOS Mode Power Supply

Switch Mode Power Supply

The range of products offered by EPCOS for switch mode power supply applications includes common mode filters, ferrite filters, ferrite cores in E, I, U, and ring core forms, transformers, X/Y filter capacitors, thermistors, temperature sensors, DC Link capacitors in both film and aluminum. Learn More

Image of EPCOS LED Lighting

LED Lighting

Energy saving lamps and LED lighting systems need about 80% less energy than conventional technologies. EPCOS offers the key components necessary to support electronic ballasts and power supplies for LED lighting systems including inductors, capacitors and protection devices. Learn More

Image of EPCOS Industrial Applications

Products for Industrial Applications

EPCOS and TDK passive components offers a broad range of products for all industrial applications including capacitors. Ferrites, inductors, filters, circuit protections, sensors and high frequency RF and SAW devices. Learn More

Product Training Modules View All (19)


SMT Current Transformer Series

Duration: 5 minutes

Overview of the EPCOS EPC7 and EPC10 series of surface mount current sense transformers.

SMT Push-Pull Transformer Series

SMT Push-Pull Transformer Series

Duration: 5 minutes

The series is designed to be used at a typical switching frequency of 250kHz and offers different turns ratios to define the output voltages.

EPCOS’ High Energy Transient Protection

Circuit Protection Offering

Duration: 5 minutes

Highlight the features and benefits of high energy transient protection, ESD protection, and thermal management products

transponder coils

Transponder Coils

Duration: 5 minutes

The main applications of transponders coils include: immobilizer systems, passive entry / passive start (PEPS) and tire pressure monitoring (TPMS).

Featured Videos View All (5)

Common Mode Chokes Low to High Power

A video highlight of the features of EPCOS's common mode chokes

TDK EPCOS High Current Chokes | Digi-Key Daily

Ideal for household appliances, solar converters, and switch mode power supplies, the EPCOS high current chokes are designed specifically to solve core material saturation problems.

TDK Corporation Compact Screw Terminal Series│Digi-Key Daily

TDK aluminum electrolytic capacitors compact screw terminals have a max voltage of 350 VDC-450 VDC and also have a high ripple current capacity. The small size is roughly 20% smaller than its competitors and can be as small as 56.6mm x 80.7mm.

TDK P27 NTC ICLs | Digi-Key Daily

TDK's P27 series of NTC inrush current limiters (ICLs) are large in size and ideal for industrial electronics applications such as large electric motors and drives, particularily soft start.

Additional Content

Related Product Brands

Industrial Electronics

Consumer Electronics


Film Capacitors

Aluminum Electrolytic Capacitors

Smart Meters



Piezo and Protection Devices

Surge Arrestors


SAW Components

More about EPCOS

Press Releases

Manufacturer Web site