Active Member
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[China]
Address: B Blding,Huangpu Runhe Industrial Park, Zhentou Road,Huangpu Community, Shajing street, Bao'An District Shenzhen P.R.C
Contact name:Lau
Shenzhen Dowis Electronics Co.,Ltd |
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SDM-10P Planar Power Transformer Manufacturer Customized
DW5844
The main types are: EI, EE, EEL, ER, ERL, ETD, EF, EFD, EP, EPC, PQ, RM, etc. The type of filter (common-mode inductance) can be divided into various specifications such as UT, ET, UU (UF), EE, EEL and T. Inductors can be divided into ring inductors, i-type inductors, rod inductors, e-type inductors, SMT inductors and electromagnetic coils. Transformer is divided into voltage and current general transformer, voltage transformer, voltage transformer, current transformer, current transformer, high-frequency current transformer, dc component current transformer, single-phase meter current transformer, etc
1. Drawing (Unit: mm)
2. Process of Winding
| Winding | PIN Position | Wire & Description | TS | Winding Method | Groove position | Insulation Tape | Method of Entering Axle | Direction of Axle | |||
| Start | End | Start | End |
Tape Type | TS | ||||||
| N1 | 1 | 2 | 1UEWF+NY,φ0.25mm*2P | 25 | Tightly wind 2 layers | Between Pin1 & 2 | Between Pin1 & 2 |
3M#1350F-1 W8.0mm | 3.1 | Pin1-5 Towards right | Front |
| N2 | 6+7 | 9+10 | 1UEWF+NY,φ0.35mm*4P | 4 | Tightly wind a layer | Between Pin6 & 7 Between Pin7 & 8 | Between Pin6 & 7 Between Pin7 & 8 |
3M#1350F-1 W8.0mm | 3.1 | ||
| N3 | 4 | 5 | 1UEWF+NY,φ0.20mm*1P | 16 | Equally, wind a layer |
Between Pin3 & 4 |
Between Pin4 & 5 |
3M#1350F-1 W8.0mm | 3.1 | ||
3. Electrical Characteristics
Item | Test Terminal | Test Condition | Standard Requirement | Equipment | ||||
Semi-finished goods | Manufactured goods | QC Exam | ||||||
Inductance Test | 1 | 2 | 250KHz, 0.1V |
87~103uH | 85.5~104.5uH |
95uH±10% |
4284A or equal | |
| 1 | 2 | 200KHz, 0.1V | 92~104.5uH | 90~104.5uH |
87~104.5uH |
1062A or equal | ||
| Leakage Test | 1 | 2 | 250KHz, 0.1V (short connect to N2+N3) | 1.44uH max | 1.44uH max |
1.6uH max |
4284A or equal | |
| 1 | 2 | 200KHz, 0.1V (short connect to N2+N3) | 1.6uH max | 1.6uH max |
1.6uH max | 1062A or equal | ||
| Direct Current Resistance | 1 | 2 | DC 25℃ | 115 mΩ max | 115 mΩ max | 115 mΩ max | TH2511 or equal | |
| 4 | 5 | 347 mΩ max | 347 mΩ max | 347 mΩ max | ||||
| 6,7 | 9,10 | 8.0 mΩ max |
8.0 mΩ max | 8.0 mΩ max | ||||
Turns Test | All Windings | 200KHz,1.0V | 25:4:16(±0.2Ts) |
25:4:16(±0.2Ts)
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25:4:16(±0.2Ts) |
CH3250 or equal | ||
High-Voltage Test | Pin1+5 to Pin6+10 | AC-50Hz-5mA | 1800V 2 Sec |
1800V, 2 Sec |
1500V, 60 Sec | CJ2670 or equal | ||
All windings to Core | AC-50Hz-5mA | 500V,2 Sec |
600V,2 Sec |
500V,60 Sec | ||||
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.
