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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: DERNFU
  • Model Number: EI type transformers
  • Usage: Reactor
  • Phase: Single
  • Coil Structure: Toroidal
  • Coil Number: Autotransformer

Packaging & Delivery

Packaging Details box+carton+pallet
Delivery Time 20-30days



EI transformer type and specifications: EI28, EI35, EI41, EI48, EI57, EI66, EI76, EI105, EI114.
Pin-type EI transformer;Epoxy encapsulated EI type transformer;EI-frequency transformer iron bridge;A square inductive AC adapters;EI power transformer;
Basic Data: 
Capacity: 0.5VA-250VA 
Phase: Single phase
Input: AC Power with Voltages of Various Countries 
Output: AC Current, Voltage, According to Customers Requirements 
Frequency: 50-60Hz 
Voltage Regulation: 12%-3% 
Manufacture Standard: GB/T15290-94, GB/19212-2006, GB2828-2829-87 
Certificate:UL,CUL, CQC, PSE, JET, CE , TUV, GS ,ROHS,SGS,ISO9001;
Insulation Class: B, 130 Celsius Degree; E, 120 Celsius Degree 
Temperature-rise: 85 Celsius Degree   Miniature Power Transformer
a) High efficiency,  We use good silicon sheet and good copper wire 
b) Low heat generation
c) 3 frames or full isolation bobbin
d) The cores are lapped by silicon steel sheet of high - quality and have been treated by insulation 
e) Clean appearance and convenient installation
f) Competitive pricing.
Testing Items:
No-load Test(No-load Current, No-load Voltage, No-load Loss)
Load Test (Load Voltage, Temperature-rise)
Inductive Voltage Test, DC Resistance Test,  Safety Test
Operating environment:
1) Temp.: The ambient temperature can not over +40°C.
2) Altitude: Mounting location can not exceed the altitude of 2000m
3) Relative humidity: Maximum 90%
4) The site not attack by rain and snow
5) The medium which no explosion danger, no corroding metal, no electrical breakdown
   Miniature Power Transformer
Applications:  This single-phase transformer is widely applied to Household appliances (Soya-bean milk machine, water dispenser, television, home mixers, air-conditioning equipment), multimedia audio equipment (hi-fi stereo, TV, DVD machines, public address system, speakers), lighting (High power LED light,Lamp Ballast,stage lighting equipment, lighting control circuit ), instrumentation equipment (test equipment, medical equipment, surveillance equipment, automation equipment control circuit, machine control circuit, energy-saving equipment control lines), general equipment, small adaptor, beauty equipment, instruments and Apparatuses equipment,power tools, UPS power supply, computer mainframe, mini charger, hairdressing equipment,etc.
For almost 20 years experience, we have a stronger design and research team, and can provide best service for OEM/ODM , with superior quality, accuracy usage function. Products are exported to Europe market , United States, Asia countries , the Middle East ,Russia,and other area.
Any inquiry please provide product usage, detail specification, datasheet ,engineering drawing, parameter demand or samples, also provide your purchasing quantity per order, order quantity in one year, delivery address , target price,etc.
Contact: More my company information, please visit website: www.dernfu.cn ; my email: david(@)dernfu.com; 86-0-13825752157. expect your more news.



*The parameter is only for reference as typical data, customized are welcomed.





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