SQ4545 DW7345 DIP Power Inductor 140uH Iron Core Inductor

Reminders
Please pay sufficient attention to the warnings for safe design when using these products.
1. The storage period is less than 12 months. Be sure to follow the storage conditions (Temperature: 5 to 40°C,
Humidity:10 to 75% RH or less). If the storage period elapses, the soldering of the terminal electrodes may deteriorate.
2. Do not use or store in locations where there are conditions such as gas corrosion (salt, acid, alkali, etc.).
3. Before soldering, be sure to preheat components. The preheating temperature should be set so that the temperature difference between the solder temperature
and chip temperature does not exceed 150°C.
4. Soldering corrections after mounting should be within the range of the conditions determined in the specifications. If overheated, a short circuit, performance deterioration, or lifespan shortening may occur.
5. Self-heating (temperature increase) occurs when the power is turned on, so the tolerance should be
sufficient for the set thermal design.
6. Do not expose the products to magnets or magnetic fields.
7. Do not use for a purpose outside of the contents regulated in the delivery specifications.

1. Drawing (Unit: mm)

2. Winding Instruction

3. EQUIVALINCIRCUIT:



4. Electrical Characteristics

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 supplier. We look forward to cooperating with you.

   
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 the product can fully follow customer’s needs and services with the good quality control system, and it has been recognized by many famous enterprises as the core supplier. We look forward to cooperating with you.