Electrical power supply transformer
1VA-130VA Sichuan Chongzhou Hengda Electronic Factory

Linear EI Transformer

1) Wire: Both Copper and Aluminum Available

2) Basic Data
Capacity: 1VA-130VA
Phase: Single
Input: AC Power with Voltages of Various Countries
Output: AC Current, Voltage, According to Customers Requirements
Frequency: 50-60Hz
Manufacture Standard: GB/T15290-94, GB/19212-2006, GB2828-2829-87
Insulation Class: B, 130 Celsius Degree; E, 120 Celsius Degree
Temperature-rise: 85 Celsius Degree and below

3) Certification: CE, RoHS, SGS, CESI and ISO9001

4) General Features:
Good Price-Function Ratio
Reliable Performance and Safety
Small Volume & Low Weight
Low No-load Losses
Low Mechanical Hum
Good Shielding Performance, Low Magnetic Leakage
High Efficiency
Low Operating Temperature-rise
Dimension Adjusted Freely
Easy to Mount & Fasten
Excellent Workmanship

5) Comparison on Transformer with Toroidal, EI, R, CD Shape Core
Since 2000, we have been playing a leading role to replace the types of R, CD, EI with toroidal type for our customers from each part of the world.
Core EI, R & CD Toroidal
Dimension Not Adjustable Adjustable
Performance Average Better
Reliability Average Better
Price Expensive 10%-30% Cost Saved

6) 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