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OEM manufacturer Sq Series Inductor - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe

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OEM manufacturer Sq Series Inductor - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe Detail:

There are two basic types of DC transformers, namely, a DC-DC converter whose output voltage is regulated and a “DC transformer” whose output voltage is adjusted with the input.

The basic requirements:
(1) Realize the electrical isolation of input and output voltage and the proportional relationship between input and output, and can realize multiple output;
(2) Use transformer leakage inductance for energy transmission, no energy consumption, conversion efficiency of 1, and high power density;
(3) The output does not need filter inductance, which can greatly reduce the volume and weight of the output filter, with good dynamic performance and fast transient response;
(4) The system frequency bandwidth can transmit voltage without distortion;
(5) Open loop control is adopted, the control circuit is simple, it is easy to realize soft switching, and the switching frequency can be further improved;
(6) High reliability, small electromagnetic interference to power supply and electrical equipment.

CONFIGURATION & DIMENSIONS:(Unit: mm)

EFD20 SMPS Flyback Transformers (1)

NOTE

1.1 FIXING TAPE FOR CORE: 0.025×6.5mmx3.0Ts;
1.2 PIN2.3,6,7, REMOVE;
1.3EFD20 SMPS Flyback Transformers (2)

DIMENSIONS & OUTLINE DRAWING

EFD20 SMPS Flyback Transformers (3)

NOTE:
A. Vacuum Varnishing;
B. Net Weight: 13.2g ±10% /pcs。
C. ( )=TEELON TUBE

WINDING SPEC

NO.

MARGIN

TERMINAL

WIRE TURNS WINDING METHOD INSULATIONI BETWEEN COILS
1-4 5-8 START END      
W1

(4)

(5) UEW-H Φ0.2 280T SOLENOID 0.05*13.5mm/2T
W2

(1)

(8) UEW-H Φ0.5 20T SOLENOID 0.05*13.5mm/2T

ENVIRONMENTAL TEST

NO TITLE CONDITION REMARKS
1 HIGH TEMPERATURE 120℃±2.0℃ 96Hrs Must meet the requirements ofNo.4-4 and 4-5.
2 LOW TEMPERATURE -25℃±2.0℃ 96Hrs
3 LOW TEMPERATURE +40℃±5;96±3%R.H; 120Hrs
4 THERMAL SHOCK -25℃±2.0℃ 30Minutes;Room Temp 10Minutes;

105℃±2.0℃ 30Minutes; 5 Cycles

Room Temp 10Minutes;

Must meet the requirements ofNo.4-4, 4-5 and must operate

properly.

5 120℃ Must operate properly
6 -25℃-120℃
7 -30℃~+90℃

PHYSICAL TEST

NO TITLE CONDITION
1 TERMINAL STRENGTH The terminal shall be not remarkably damage by pulling and pushing of 1.02kg for 30± 5 seconds in the axis directions. (JIS C 0051)
2 VIBRATIONRESISTANCE Appearance and structure shall be no abnormality after vibrating at the frequency varying uniformly between the approximate limits and 10 and 55 and 10 Hz at 1 minute and the amplitude of 1.5 mm for 2hrs in 3 mutually perpendicular directions. (JIS C 0040)
3 SOLDERABILITY Solder shall be attached uniformly around the dipped portion after dipping into solder at 235±5℃ for 3.0±0.5 seconds。(JIS C 0050)
4 SOLDER HEATRESISTANCE No remarkable damage after dipping into solder at 260±5℃ for10±1seconds up to 1.0-1.5mm from the attachment surface. (JIS C 0050)

Application

Widely used in the field of controlling switch power supply, LCD power supply, high-power UPS inverter power supply, computer power supply, energy-saving lamps

Kindly Reminder

1. About the SAMPLE. Please provide specification or sample materials, we will evaluate your product, design and produce samples.
2. About PRICE. Transformers are customized products. Due to the difference in material and design, even if the model is the same,the price is different. The price also depends on the complexity of the parameters and the number of orders.
3. Regarding SHIPPING. SamplE within 5-7 days; mass production within 10 to 20 days.
4. Packaging, logistics, according to the specific requirements of the purchase and sale contract.

Packing & Delivery

3cd67be9

FAQ


Product detail pictures:

OEM manufacturer Sq Series Inductor - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe detail pictures

OEM manufacturer Sq Series Inductor - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe detail pictures

OEM manufacturer Sq Series Inductor - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe detail pictures


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Our corporation insists all along the quality policy of "product top quality is base of organization survival; purchaser pleasure will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff" plus the consistent purpose of "reputation very first, purchaser first" for OEM manufacturer Sq Series Inductor - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe, The product will supply to all over the world, such as: Dominica, Hungary, Naples, Our products are mainly exported to Southeast Asia, the Middle East, North America and Europe. Our quality is surely guaranteed. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
  • The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
    5 Stars By Arlene from Venezuela - 2018.02.08 16:45
    The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Samantha from Lahore - 2018.04.25 16:46

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