2021 High quality 220v To 110v Step Down Converter - High Frequency Transformer Ferrite Core EPC25 Switching Power Supply Transformer For Doorbells – Sanhe
2021 High quality 220v To 110v Step Down Converter - 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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We are also specializing in improving the things management and QC method in order that we could retain terrific edge inside the fiercely-competitive small business for 2021 High quality 220v To 110v Step Down Converter - High Frequency Transformer Ferrite Core EPC25 Switching Power Supply Transformer For Doorbells – Sanhe, The product will supply to all over the world, such as: Portugal, Cape Town, Chicago, We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market. We are willing to cooperate with business friends from at home and abroad and create a great future together.
By Laurel from Bangladesh - 2017.09.28 18:29
Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
By tobin from Bahrain - 2018.12.30 10:21