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1. Operating frequency: 20 kHz - 500 kHz
2. Output power: 3 - 100 W
3. Operating temperature: -40°C to +125°C
4. Storage temperature: -25°C to +85°C
5. Storage humidity: 30% - 95% Characteristics:
EFD Switching Power Supply High-Frequency Transformer has the characteristics of a very low structural height, high transmission power, low magnetic leakage, and wide application range.
Product specifications: EFD15 / EFD20 / EFD25 / EFD30 / EFD40, etc.
1. The EFD Switching Power Supply High-Frequency Transformer produced by Haoer uses a flat ferrite core. Its shape has unique structural advantages. The flat design of this transformer results in a smaller size in the height direction, effectively saving installation space. It is particularly suitable for applications in electronic devices with strict space requirements.
2. A multi-layer winding structure is typically employed to achieve excellent electromagnetic coupling and electrical performance. The windings are generally made of high-purity copper wire, which has low resistance and can reduce energy loss, thereby enhancing the efficiency of the transformer. Additionally, the design of multi-layer windings can be flexibly adjusted to vary the turns ratio according to different application requirements, enabling various voltage conversion functions.
3. Performance characteristics of EFD type transformer: Wide operating frequency range, high power density, high efficiency, and stable electrical performance.
The EFD type transformer is used in switching power supplies, inverters, medical electronic equipment, air purifiers, mosquito repellents and plasma circuits.
| Model number | Number of needles | Size | FIG | ||||
| A | B | C | D | E | |||
| EFD-12 | 8 | 6 | 17 | 20 | 3 | 13.5 | 2 |
| EFD-15 | 10 | 7.3 | 18.2 | 21.35 | 2.5 | 15 | 1 |
| EFD-15 | 10 | 7.5 | 19.3 | 22.6 | 3 | 16.7 | 2 |
| EFD-20 | 10 | 9.4 | 25.3 | 27.7 | 3.75 | 21.7 | 2 |
| EFD-20 | 12 | 9.7 | 24 | 26.8 | 3 | 20 | 1 |
| EFD-25 | 10 | 13.4 | 29.7 | 35.4 | 5 | 25 | 2 |
| EFD-25 | 10 | 12.6 | 29.7 | 31.5 | 5 | 25 | 1 |
| EFD-30 | 12 | 12.6 | 31.6 | 35.3 | 5 | 30 | 2 |
With a strong industrial presence since 2008, Guangdong Haoer Electronics Co., Ltd. stands as a specialized producer of precision magnetic components. Our core products—high-frequency transformers, filters, and inductors—are integral to advanced applications in lighting, home appliances, photovoltaics, UPS, automotive systems, and network communications.
The company’s growth is marked by significant production capabilities: several manufacturing sites in Foshan, a workforce exceeding 1, 000, and an annual production volume of over 100 million units. Our investment in automation and precision testing, coupled with certifications such as CQC, UL, ISO 9000, and TS 16949, reflects our dedication to excellence.
Guided by the principles of innovation, quality leadership, and collaborative success, Haoer continues to strengthen its expertise and contribute to the evolving needs of the global electronics industry.
We offer a fast-response 7×24-hour customer service and lifetime technical support. We maintain product files for full tracking, conduct regular proactive follow-ups, and have an expert team to provide continuous technical assistance to you. We commit to transparent warranties and long-term supply guarantees, and are dedicated to establishing a long-term and mutually beneficial partnership with you through reliable services.
Question: What are your main products?
Answer: We mainly produce high-frequency transformers series, inductors series, electronic modules and other electronic components.
Q: How can I obtain a quotation?
A: You can send an inquiry form on our international website, specifying the product type, quantity and other requirements. Our team will reply with the quotation as soon as possible.
Question: What is the delivery time for the order?
Answer: The delivery time usually depends on the quantity of the order and our production schedule. Generally, it takes 7 working days after the deposit is received.
Q: What payment methods do you accept?
A: We support T/T, Letter of Credit (L/C), PayPal and cross-border platform guarantee transactions.
Address
C3 2 -4 81 Xijiao Road, Ronggui Sub-district, Foshan City, 2-4/F, Building C3, Zhongjian Chuangkeyuan, China
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