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LM8 High Frequency Transformer Manufacture Customized DW5824

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Shenzhen Dowis Electronics Co.,Ltd
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LM8 High Frequency Transformer Manufacture Customized DW5824

Brand Name : Dowis

Model Number : LM8

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

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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)
LM8 High Frequency Transformer Manufacture Customized DW5824

2. Winding Structure

LM8 High Frequency Transformer Manufacture Customized DW5824

3. Process of Winding

winding Barrier tape Pin Wire & Description TS Winding Method Groove position

Insulating Tape

(light yellow)

 Tube method of entering Axle Direction of Axle
Top Pin Side Start End Start End Tape Type TS Start End
N1 4 3

∮0.40mm*1P 1UEW-F

 16 Tightly wind 1 layer P4 Groove Between P3&P4 W7.8 1 / / Pin towards Left Front
N2 3 NC

∮0.20mm*2P 1UEW-F

 14

Tightly wind 1 layer, start from the top

*Pin3 is temporarily hung in the top groove. After winding, cut off the NC end and then hang the top lead on PIN3 (i.e., NC at the PIN end)

 Between P3&P4 Hanging W7.8 3 / / Pin Towards Left
N3 (B) (A)

∮0.65mm*1P TIW-B

 7 Evenly wind 1 layer Bottom Top W7.8 3 20L*22 20L*30 Pin Towards Left
N4 W1.5*1TS W1.5*1TS 2 (5) ∮0.20mm*2P 1UEW-F 5

Tightly wind in the middle

 Between P2&P3 Between P4&P5 W7.8 1 / 24L*10 PIn Towards Right
N5 3 1

∮0.40mm*1P 1UEW-F

 15

Tightly wind in the middle

 Between P3&P4 Between P1&P2 W7.8 3 / / Pin Towards Left




4. Electrical Specification

Item Test Terminal Test Condition Standard Requirement Equipment
semi-manufactured goods Manufactured goods OC Exam
Inductance Test 4 1 100KHz, 0.1V 285~315µH 280~320µH 300µH±8% TH1062 or equal
Leakage Test 4 1 100KHz.0.1V (short connection N2,N3,N4) 10µH max 10µH max 10µH max TH1062 or equal
Direct Current Resistance 4 1 DC 25℃ 0.5Ω max 0.5Ω max 0.5Ω max TH2511 or equal
2 5 85mΩ max 85mΩ max 85mΩ max
A B 25mΩ max 25mΩ max 25mΩ max
Turns Test All winding 20KHz, 1V

31:7:5 (±0.2Ts) Pin4,5,B homopolar

 CH3250 or equal
High-Voltage Insulation Test A (flywire) Pin 1+2 AC-50Hz-3mA 4500V, 1sec 4500V, 1sec 4000V, 60sec CJ2670 or equal
Pin 1 Pin 2 1800V, 1sec 1800V, 1sec 1500V, 60sec
Pin 2 Core

500V,1Sec(Alarm is qualified)


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