Factory Cheap Transformer 110v - High Frequency Transformer Ferrite Core EPC25 Switching Power Supply Transformer For Doorbells – Sanhe
Factory Cheap Transformer 110v - High Frequency Transformer Ferrite Core EPC25 Switching Power Supply Transformer For Doorbells – Sanhe Detail:
Introduction
EPC25 transformer mainly supplies power to each functional module of the doorbell to realize image and sound transmission, data storage, sending control commands and other functions. It can output three sets of voltages at the same time, including power supply and protection. In addition, primary and secondary isolation protection is realized to prevent danger of leakage caused by circuit failures.
Parameters
| Voltage & Current Load | ||||
| Input（Type） | 110-220V | |||
| Output（Type） | V1 | V2 | V3 | |
| 12V | 12V | 10V | ||
| Electrical Characteristics | ||||
| NO. | ITEMS | TEST PIN | SPECIFICATION | TEST CONDITIONS |
| 1 | Inductance | 8-9 | 1.3mH±10% | 100KHz 1Vrms |
| 2 | Leakage | 8-9 | 26uH Max | 100KHz 1Vrms Pin 2,3,4,5,6,7,10,11 short |
| 3 | DCR | 2-3 | 90mΩ Max | At 25℃ |
| 4-5 | 80mΩ Max | |||
| 6-7 | 290mΩ Max | |||
| 8-9 | 2.5mΩ Max | |||
| 10-11 | 82mΩ Max | |||
| 4 | HI-POT | P-S | No short break | AC1.8KV/1mA/2s |
| P,s-Core | AC1.2KV/1mA/2s | |||
| 5 | Insulation resistance | P-S | No short break | AC1.5KV/1mA/60s |
| P,s-Core | AC1.0KV/1mA/60s | |||
Dimensions:（Unit: mm）& Diagram
Features
1. SMD chip structure
2. Adopt internal shield winding to improve the anti-electromagnetic interference ability
3. Magnetic core with additional protective tape extends safety distance
4. There are strict size requirements for smoothness of the SMD pins
5. Blister packaging
Advantages
1. EPC25 SMD structure makes it possible to be installed by mounting technology which has high efficiency
2. Sufficient protecion of insulation and isolation for use safety
3. Designed with shielded winding, good EMC anti-interference ability
4. It can provide multiple stable output voltages at the same time, and the voltage fluctuation is small
Certificates
Our Customers
Company Profile
Product detail pictures:
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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" and the theory of "quality the basic, trust the first and management the advanced" for Factory Cheap Transformer 110v - High Frequency Transformer Ferrite Core EPC25 Switching Power Supply Transformer For Doorbells – Sanhe, The product will supply to all over the world, such as: Kazakhstan, Lyon, Bolivia, We have more than 8 years of experience in this industry and have a good reputation in this field. Our products have won praise from customers worldwide. Our aim is to help customers realize their goals. We are making great efforts to achieve this win-win situation and sincerely welcome you to join us.
By Karen from Nigeria - 2018.07.12 12:19
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
By Eve from Sierra Leone - 2018.12.22 12:52
