EE33-1.5-15KW 12V Chopper Transformer

EE33-1.5-15KW Solar Inverter Transformer 23 Pins (12V Chopper)

The EE33-1.5-15KW Solar Inverter Transformer 23 Pins, commonly referred to as a 12V chopper, is a high-frequency transformer used in power conversion and solar inverter circuits. It is designed to support DC-DC and DC-AC conversion where stable voltage transformation and consistent electrical performance are required. Based on a ferrite EE33 core and a 23-pin configuration, this 12V chopper allows direct mounting on inverter and controller boards, making it suitable for photovoltaic inverters, SMPS designs, and high-power energy systems with output requirements between 1.5 kW and 15 kW.

This transformer uses copper windings and a PBT bobbin to maintain electrical insulation, mechanical stability, and efficient energy transfer during high-frequency switching. The EE33-1.5 model typically operates with a 12 V input and is also available in a 24 V version, depending on inverter design. Its construction supports controlled electromagnetic behavior and stable thermal performance, enabling reliable operation across a wide temperature range from –40 °C to +125 °C in continuous duty applications.

The EE33-1.5-15KW 12V chopper transformer is commonly used in solar inverters, energy storage systems, UPS units, EV power electronics, and industrial power backup equipment. Compliance with RoHS standards ensures suitability for environmentally regulated markets. Due to its compact form factor, defined electrical parameters, and standardized pin layout, it is frequently used for inverter servicing, system upgrades, and custom power electronics development.

Key Specs