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When designing the PC Power Supply High-Frequency Transformer, the manufacturer of Haoer focused on high power density, low temperature rise and long-term reliability. Through strict electrical isolation and heat dissipation optimization, it ensures the continuous, stable and pure power supply for core hardware such as CPUs and graphics cards, and is a key component for achieving the goals of efficient, quiet and miniaturized PC power supplies.
1. The magnetic core of ER series transformers usually has an E-shaped or similar E-shaped structure, with a circular center pillar. This shape makes the coupling position good, facilitates winding, and increases the winding area, which is beneficial for designing transformers with high power and low leakage inductance.
2. The skeleton of some ER series transformers is equipped with multiple connectors, which facilitates the design of multiple output transformers and can meet the needs of different circuits for multiple output voltages and currents.
3. Performance characteristics of ER series transformers: low loss, high output power, wide operating frequency, low temperature rise, stable performance.
4. The application scope of ER series transformers is in switching power supplies, communication equipment, consumer electronics, and industrial equipment.
The features of easy winding, high efficiency, large power and high reliability.
ER28/ER35/ER39/ER40/ER42/ER49
Applied to AC/DC converters, PC power supplies, LLC power supplies, communication power supplies, etc.
| PART NO. | TERMINAL PINS | Dimensions in mm(inches) | TYPE | |||||
| A | B | C±0.5 | D±0.5 | E | F | |||
| ER-25.5 | 8 | 19.5 | 19.7 | 12.5 | 4 | 5 | 25.5 | V |
| ER28 | 12 | 30.5 | 23 | 17.5 | 4 | 5 | 31 | V |
| ER28 | 12 | 23.1 | 28.2 | 25 | 4 | 5 | 29.1 | H |
| ERL28 | 12 | 36 | 27 | 20 | 4 | 5 | 30 | V |
| ERL28 | 12 | 26.3 | 37.1 | 30 | 4 | 5 | 30.2 | H |
| ER33 | 14 | 37.5 | 28 | 22.5 | 4 | 5 | 36 | V |
| ERL35 | 14 | 43.5 | 28 | 22.5 | 4 | 5 | 35.5 | V |
| ERL35 | 16 | 29.1 | 40.3 | 35.4 | 4 | 5 | 40.3 | H |
| ERL39 | 16 | 46 | 31.1 | 25 | 4 | 5 | 43.1 | V |
| ERL39 | 16 | 33 | 41.5 | 30.85 | 4 | 5 | 42.3 | H |
| ER40 | 16 | 48 | 31.1 | 25 | 4 | 5 | 43.1 | V |
| ER4215 | 14 | 45.5 | 30 | 25 | 5 | 5 | 42 | V |
| ER4220 | 14 | 44 | 37.5 | 36 | 5 | 5 | 42 | V |
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C3 2 -4 81 Xijiao Road, Ronggui Sub-district, Foshan City, 2-4/F, Building C3, Zhongjian Chuangkeyuan, China
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