| Manufacturer | Part Number | Description |
|---|---|---|
| Smart Tech Smart Tech | EER40 | Switching Power Transformers |
TDK Corporation |
EER40 | (EER Series) Available Core |
| ETC Unknown Manufacturer | EER40 | EER Cores |
JFE |
EER40 | EER Bobbins |
| Yuxiang Yuxiang | EER40 | EER Cores |
| ETC Unknown Manufacturer | EER40 | EER Cores |