| Place of Origin: | CN |
|---|---|
| Brand Name: | Dowis |
| Certification: | CE, UL, RoHs, ISO9001, 16949 |
| Model Number: | PQ3220 |
| Minimum Order Quantity: | 1000pcs |
| Packaging Details: | Carton Box |
| Delivery Time: | 3-4Weeks |
| Payment Terms: | T/T, L/C |
| High Light: | PQ3220 LF Transformer,LF Transformer 10KHz To 1MHz,PQ3220 Transformer 10W To 10KW |
PQ3220 PQ Type High Frequency Transformer Manufacture Customized DW6442
Introduction of transformers of our main product:
EC, EE, EI and PQ type high frequency switch transformer
EP type magnet shielding switch transformer
RM type communication filter, aux power transformer
ET, FT type linearity filter
T (ring) type filter and switch transformer
G (jar shape) switch transformer
DR (I) type transformer
T (ring) iron power core, DC filter inductor
1. Drawing (Unit: mm)
![[#varpname#] 0](/photo/dowis/editor/20201016004520_82169.png)
2. Environmental Conditions
3. Electrical Specification
| Item | Unit | Test Lead | Test Condition | MIN | NOR | MAX |
| Inductance Value | µH | 3-1 | 100KHz,0.3V, Ser | 325 | 350 | 375 |
| Leakage Inductance | µH | 3-1 |
100KHz,0.3V, Ser |
/ | / | 11 |
| Q Value | / | 3-1 | 100KHz,0.3V, Ser | 150 | / | / |
| Dielectric Strength |
mA | N1—N2,N3 | 3750Vdc,60s | / | / | 1 |
| mA | N1—Core | 3750Vdc,60s | / | / | 1 | |
| mA | N2,N3－Core | 500Vdc,60s | / | / | 1 | |
| Direct Current Resistanc | mΩ | 3-1 | 25℃ | / | / | 210 |
| mΩ | 12,11-10,9 | 25℃ | / | / | 8.0 | |
| mΩ | 10,9-7,8 | 25℃ | / | / | 9.0 | |
| Insulation Resistance | MΩ | Np-Ns | 500Vdc | 100 | / |
|
4. Two Core Edging Process for Transformer
![[#varpname#] 1](/photo/dowis/editor/20201016005533_82397.png)
Use about23mm wide tape to wrap 1layeralong the edge of the magnetic core, the corner of the tape should not be damaged.
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.
