China ER28/ER35 Power Transformer Suppliers | Low Loss Ferrite Core Factory for Impulse Power Supplies
Shape and External Dimensions (mm)
Electronic Specifications
| Core Shape | ER28/28/11 | ER28/34/11 | ER-35/42/11 |
| Central Column Area of the Core Aemm² | 82.1 | 85.6 | 107 |
| Magnetic Circuit Length Le mm | 64.0 | 73.2 | 90.8 |
| Volume Ve mm3 | 5254 | 6266 | 9716 |
| Frame Type | Vertical | Horizontal | Vertical |
| Dimensions W＊D＊H mm | 32*27*30.5 | 31*36*26.5 | 37.5*31*46 |
| Maximum Output Power VA | 228 | 228 | 325 |
Note: The design is based on: 1. Forward model 2. PC40 series ferrite 3. Switching frequency: 100 KHz
Why Choose Us
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Negotiable Pricing: Prices change depending on your quantity or package requirements.
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Sample Service: Samples available with fee; freight collect or advance payment accepted.
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Eco-Friendly: All products are made of high-quality environmentally friendly materials.
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Flexible MOQ: We can customize Minimum Order Quantities according to your requirements.
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OEM/ODM Support: Send your design and logo; we can open new molds and provide samples.
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Strict Quality Control: Specific personnel responsible for every process from procurement to packaging.
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Molding Workshop: In-house workshop for rapid customized model production.
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Expert Sales Team: Our experienced team offers the best professional service.
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Virgin Materials: Only new virgin materials are used for each product.
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Guaranteed Quality: 100% check before shipping and pre-production samples provided.
Frequently Asked Questions
What core shapes are available for the Switching Power Transformer?
We offer various core shapes including ER28/28/11, ER28/34/11, and ER-35/42/11 to suit different power requirements.
Can I customize the transformer with my own logo?
Yes, we welcome OEM orders. We can open new molds for your specific design and apply your customized logo and colors.
What is the maximum output power for the ER35 series?
The ER-35/42/11 model supports a maximum output power of up to 325 VA based on a 100 KHz switching frequency.
How do you ensure the quality of the transformers?
We maintain a strict quality control system with 100% inspection before shipping and mandatory pre-production samples before mass production.
Are the materials used environmentally friendly?
Absolutely. All our products are manufactured using high-quality, eco-friendly virgin materials.
What are the typical design parameters for these transformers?
Our standard designs are based on the Forward model, using PC40 series ferrite at a switching frequency of 100 KHz.