Amplifier Use and Audio Application Isolation Transformer for Speaker

• Application: Power, Electronic, Instrument
• Phase: Single
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001
• Model NO.: EI57
• Usage: Single-phase Transformer
• Frequency Characteristics: Low Frequency
• Shape of Core: EI
• Brand: Phoegon
• Input: 100V
• Output: 6-Ohm
• Rated: 20W
• Certificate: CE RoHS
• Color: Customized
• Model Number: Krm-102021
• Insulation Class: 130(B)
• Hi Pot Test: AC 3kv for 3s
• Transport Package: Carton
• Specification: 0.5VA
• Origin: China
• HS Code: 85043110
• Production Capacity: 30K/Month

Product Description

EI TYPE LOW FREQUENCY TRANSFORMER 
EI57 Audio Transformer for Audio Amplifier
 Qingdao Noble Electronics Co., Ltd. specialised in the design, manufacture, stocking and distribution of power transformer.
EI Power Transformer (Capacity: 10VA~5000VA):
The product has stable performance, reduces noise interference, and makes the sound more real.


Basic Data: 
1.Primary voltage: 110V/115V/200V/380V/415V/440V
2.Secondary voltage: 3.6V/6.3V/12V/24V/36V/100V/110V/200V/220V/380V
3.Operational frequency:50/60Hz
4.Insulation class: B(130ºC); F(155ºC);  H(180ºC)
5.Input: 100V
6.Output: 18VAC
7.Power: 0.5VA 

No.	Model	Rated output voltage(Vd.c.)	Output current    (mA)	Power             (VA)
1	EI-28 series	1.0V-36.0VAC	2mA-200mA	0.2VA-2.0VA
2	EI-35 series	1.0V-36.0VAC	2mA-500mA	0.5VA-4.0VA
3	EI-41 series	1.0V-36.0VAC	50 mA -1000mA	1.0VA-8.0VA
4	EI-48 series	1.0V-36.0VAC	50mA -2000mA	6.0VA-20.0VA
5	EI-57 series	1.0V-36.0VAC	50 mA -4000mA	10.VA-30.0VA
6	EI-66 series	1.0V-36.0VAC	50 mA -4500mA	20.VA-50.0VA
7	EI-76 series	1.0V-36.0VAC	50 mA -5000mA	30.0VA-50.0VA

Features: 
1.Small idle current
2.Strong load capacity
3.Multiple output windings
4.High efficiency
5.Competitive price

they are widely used in public broadcasting systems, ceiling speakers, audio amplifiers.

volgate :70/100v ,all can be oem for customer

Use pure copper wires to make sure the transformer powerful enough and low temperature rising when operated .

 

 Testing Items:

1. No-load Test(No-load Current, No-load Voltage, No-load Loss)
2. Load Test (Load Voltage, Temperature-rise)
3. Inductive Voltage Test, DC Resistance Test, Safety Test

Products Advantages:

1. Low Profile and Weight;
2. High Reliability
3. Silence without noise
4. High Flux Density Core
5. High Isolation Measures
6. Soft Lead wire out
7. Frame Supported
8. Rohs fully compliance.
9. Custom Design Available: we can make orders as per your specific requirement or drawing

Application:

1. Household appliance devices: air dryer, air cleaner and etc.
2. Fast train appliance.
3. Automation.