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EF25 High-Frequency Transformer Manufacturer Customized DW3510
EF25 High-Frequency Transformer Manufacturer Customized DW3510
Specifications
Brand Name :
Dowis
Model Number :
EF25, EF Series
Certification :
CE, UL, RoHs, ISO9001, 16949
Place of Origin :
CN
MOQ :
1000pcs
Payment Terms :
T/T, L/C
Delivery Time :
3-4Weeks
Packaging Details :
Carton Box
Description

EF25 High-Frequency Transformer Manufacturer Customized DW3510

Shenzhen Dowis Electronics Co., Ltd. is a professional manufacturer of electronic transformers, inductors, and filters integrating R&D, production, and sales. It is a national high-tech enterprise and has passed the IATF16949:2016 automotive industry quality management system certification, the product has passed the "UL""CQC" and other safety certifications. The products are widely used in communication equipment, new energy vehicles, industrial control equipment, high-power LED drives and other market areas. The industry has high visibility. In addition to the domestic market, but also exported to many countries in Europe and the United States.

In order to further expand production capacity, it has set up a special test area construction area in zhaoqing YueGui cooperation in 2018 of 14000 square meters of manufacturing center named ZhaoQing Sheng Xiang electronic technology co., Ltd. Its management technical team has rich experience in cooperating with customers from well-known domestic enterprises and overseas. The design of products can fully follow customer’s needs and services with a good quality control system, and it has been recognized by many famous enterprises as the core suppliers. We look forward to cooperating with you.

1. Drawing (Unit: mm)
EF25 High-Frequency Transformer Manufacturer Customized DW3510



2. Construction
EF25 High-Frequency Transformer Manufacturer Customized DW3510





3. Schematic Diagram
EF25 High-Frequency Transformer Manufacturer Customized DW3510



4. Process of winding

Winding Pin position TS
 Method of winding Groove position Insulation tape Tube
Start End Wire & description Start End Tape type TS Start End

Method of entering axle

Direction of axle
N1 4 (ROD) 2UEW-B,φ0.25mm×2bars 25 Tightly wind a layer (The end wire is reserved for the length of N6 line and then cut off.) Between Pin4,5 Top 16.0mm 2.1 / 24L×15mm

Pin towards left

 Front
N2 1 NC 2UEW-B,φ0.25mm×2bars 20 Sparsely wind a layer Between Pin1,2 hang 16.0mm 2.1 / /

Pin towards right
N3 (8) (7) TIW-B, φ0.70mm×1bars 8 Double wound Tightly wound a layer Between Pin7,8 Between Pin6,7 16.0mm 3.1 18L×10mm 18L×10mm

Pin towards left
N4 (10) (9) TIW-B, φ0.70mm×1bars 8 Between Pin9,10 Between Pin8,9 18L×10mm 18L×10mm
N5 1 NC 2UEW-B,φ0.25mm×2bars 20 Sparsely wind a layer Between Pin1,2 hang 16.0mm 2.1 / /

Pin towards right
N6 (ROD) 3 2UEW-B,φ0.25mm×2bars 25 Tightly wind a layer Top skip Between Pin3,4 16.0mm 2.1 / /

Pin towards left
N7 1 2 2UEW-B,φ0.25mm×1bars 7 Sparsely wind a layer Between Pin1,2 Between Pin2,3 16.0mm 3.1 / /
N8 (6) (8) TIW-B, φ0.25mm×1bars 3 Sparsely wind a layer Between Pin6,7 Between Pin7,8 16.0mm 3.1 26L×13mm 26L×13mm





5. Electrical Characteristics

Item Test terminal Test condition Standard requirement

Equipment
Semi-finished goods Finished goods QC Exam
Inductance Test 4 3 1KHz,1.0V 1.1mH±17% 1.1mH±19% 1.1mH±20%

TH1062 or equal
Leakage Test 4 3

1KHz,1.0V

(short circuit to Pin6,7,8,9,10)

 70 uH max 70 uH max 70 uH max

TH1062 or equal
Direct Current Resistance 4 3 DC 25℃ 488mΩ max 488mΩ max 488mΩ max

TH2511 or equal
8 7 22mΩ max 22mΩ max 22mΩ max
10 9 22mΩ max 22mΩ max 22mΩ max
1 2 179mΩ max 179mΩ max 179mΩ max
6 8 89mΩ max 89mΩ max 89mΩ max
Turn test All windings 20KHz,1V 50:8:8:7:3(±0.2Ts) 50:8:8:7:3(±0.2Ts) 50:8:8:7:3(±0.2Ts)

CH3250 or equal
High-Voltage Test Primary to secondary AC-50Hz-1mA 3000±10V,1~2sec 3100±10V,1~2sec 3000V,2sec

CH3250 or equal
Pin1+2 to Pin3+4 AC-50Hz-1mA 500±10V,1~2sec 600±10V,1~2sec 500V, 2sec
Pin6+7 to Pin9+10 AC-50Hz-1mA 500±10V,1~2sec 600±10V,1~2sec 500V, 2sec
All Pins to core AC-50Hz-1mA 1500±10V,1~2sec 1600±10V,1~2sec 1500V,2sec
Product tags

ei-40 high frequency transformer

,

400 hz transformer

,

oem made high frequency transformers
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EF25 High-Frequency Transformer Manufacturer Customized DW3510

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Product Detail
Brand Name :
Dowis
Model Number :
EF25, EF Series
Certification :
CE, UL, RoHs, ISO9001, 16949
Place of Origin :
CN
MOQ :
1000pcs
Payment Terms :
T/T, L/C
Contact Supplier
EF25 High-Frequency Transformer Manufacturer Customized DW3510

Shenzhen Dowis Electronics Co.,Ltd

Active Member
5 Years
shenzhen
Since 2008
Business Type :
Manufacturer, Exporter, Seller
Main Products :
HF Transformer, LF Transformer, Planar Power Transformer
Total Annual :
13,000,000.00-14,800,000.00
Employee Number :
480~500
Certification Level :
Active Member
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