TDK has introduced the EP9 series, a new range of 500V gate drive transformers that are smaller than its existing E10EM series. With a compact 11 x 13mm footprint and a height of just 11mm, these transformers provide an efficient and space-saving solution for high-frequency switching applications.

Technical Specifications

The EP9 series is built on a MnZn ferrite core and features a surface-mount L-pin construction, ensuring reliability and ease of integration into modern power systems. Despite the size reduction, these transformers maintain excellent electrical performance, making them a strong choice for isolated gate drive applications.

Electrical & Safety Features

• Creepage and clearance distance: 5mm

• Peak voltage withstand: 2.5kVac @ 50Hz

• Low coupling capacitance: 2pF

• Operating temperature range: -40 to +150°C

• Automotive-grade reliability: Complies with AEC-Q200 Rev E

These features make the EP9 series well-suited for use in automotive and industrial applications, where high isolation and temperature stability are crucial.

Application & Use Cases

Designed to work with both IGBTs and MOSFETs, the EP9 series provides robust gate drive isolation in high-frequency switch-mode power supplies, motor drives, and inverters.

Variants & Operating Range

The series includes two models, both optimized for operation between 100kHz and 400kHz:

• One for half-bridge converters

• One for push-pull converters

Despite being part of the EP9 series, "EP9" does not appear in the part numbers, requiring careful selection based on application needs.

Development & Evaluation

For engineers looking to test and integrate these transformers, TDK offers a sample kit (B82804X1), which includes six of each type, enabling efficient prototyping and evaluation.

Why Choose AXTEK?

AXTEK has a long-term supply channel for TDK products, ensuring stable lead times and competitive pricing. If you need reliable sourcing for TDK components, we are here to help.