High frequency SMPS Transformers
High frequency transformers sized E20 and E25 with high efficiency from Wah Hing
SMPS ferrite core transformers from Hong Kong manufacturer Wah Hing with a power range from 5 to 30W and output voltages of 3.3, 5, 12V
Sample kit are ex stock Rutronik – part number FETRA1636
The horizontal transformers are made of UL listed materials with basic insulation.
| Wah Hing | Rutronik Item | Core | Power / Voltage | Alternative to Würth part number |
| 903-2935-00 | FETRA1622 | EF20 | 10W / 12V | 750342992 |
| 903-2936-00 | FETRA1623 | EF20 | 20W / 12V | 750343053 |
| 903-2937-00 | FETRA1624 | EF20 | 12W / 5V | 750342411 |
| 903-2938-00 | FETRA1625 | EF20 | 20W / 5V | 750342625 |
| 903-2939-00 | FETRA1630 | EF25 | 30W / 12V | 750343023 |
| 903-2940-00 | FETRA1627 | EF20 | 5W / 5V | |
| 903-2941-00 | FETRA1628 | EF20 | 10W / 3,3V | |
| 903-2942-00 | FETRA1629 | EF20 | 5W / 3,3V | |
| 903-2943-00 | FETRA1631 | EF25 | 20W / 5V |
Order Products at Rutronik24
Wah Hing founded in 1980 has been expanding steadily over the years to become one of the top transformer manufacturers in Hong Kong. Wah Hing employs the latest manufacturing facilities and techniques at all stages of the production process. Some machines are designed or developed in-house for the best fit to their specific needs. Wah Hing is proved to meet the highly demanding international quality standard and to be a reliable supplier of high quality products.
