
EFD Series SMD type high frequency transformer three color copper wire
>>> Feature
1. High throughput power density
2. Extreme flatness
3. Lower building height but same magnetic volume
4. Custom design available
5. Complete range of accessories including SMD coil former
>>> Quick Details
Place of Origin: Guangdong, China (Mainland)
Brand Name: Greenfair, GFE, GE
Model Number: EFD11, EFD12, EFD13, EFD15, EFD16, EFD17, EFD18,
EFD20, EFD21, EFD25, EFD30, EFD32, EFD35,EFD36, EFD40.
Usage: High Frequency
Phase: Single
Coil Structure: Toroidal
Coil Number: Autotransformer
Color: Yellow
Size: Horizontal
Type: EE,EI ,EC,PQ,EFD,EPC,UU,R,RH,DR, etc
Core Grade: PC40, 3C90,TP4
Bobbin Material: Phenolic
WINDING ORDER | MATERIAL SPEC. | S--F | TURNS | WINDING FASHION | ISOLATION BETWEEN WINDING | ||
N1 | 1UEWF Φ0.17mm | 6---7 | 96 | closed | 1mil*9mm* 1Ts | ||
N2 | 1UEWF Φ0.17mm | 1---2 | 48 | closed | 1mil*9mm* 1Ts | ||
N3 | 1UEWF Φ0.17mm | 4---5 | 47 | closed | 1mil*9mm* 1Ts | ||
N4 | 1UEWF Φ0.17mm | 7--10 | 96 | closed | 1mil*9mm*2 Ts |
NO. | ITEM | MEASURE POINT | TECHNICAL DATA | REMARK | ||||
1 | IND | 6---10 | 24mH MIN | @1KHZ/0.25V | ||||
2 | DCR | 6---10 | 4.6Ω MAX | @25℃ | ||||
3 | HI-POT | P---S | 500VAC | @50HZ 3mA 2SEC | ||||
3 | HI-POT | P/S---C | 500VAC | @50HZ 3mA 2SEC |
General information:
It is recommended that the temperature of the part does not exceed
+125°C under worst case conditions.
Storage Temperature: -40°C to 85°C
Operating Temperature: -40°C to 125°C
Test conditions of Electrical Properties: 20°C, 33% RH if not
specified differently
OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT | |||||
Temperature range | Humidity range | Standard test conditions | |||
Operating temperature* | Storage temperature | Operating temperature** | Storage temperature** | Operating temperature** | Storage temperature** |
( ℃) | ( ℃) | ( % RH) | ( % RH) | ( ℃) | ( % RH) |
-30 to +120 | -40 to +80 | 10 to +95 | 10 to +95 | 25 ± 10 | 25 to +75 |
* With self-heating
** Maximum wet-bulb temperature 38°C, without dewing
*** Without dewing
Shenzhen Greenfair Electronics Co., Limited
Greenfair Electronics is one of the key electric enterprises in Shenzhen., professional in design and manufacture High Frequency Transformer, Power Transformer, Inductors, EMI equipment, SMT Magnetic Components, Network and Telecommunication Transformers, Automotive and Telecommunication Applications, etc., provide PCB design, electric circuit design. Moreover, besides standard products, we also provide an extensive range of customization services in order to cater for your special orders.
We have about 3800M production area with annual output up to
50,000,000pcs. And we have a labor force which has grown to more
than 400, and own a professional group more than 30 members who
hammer at technology and engineering craft.
We earned international approval from CE, UL, CQC, CSA, VDE and awarded the ISO9001:2000 Quality Management Certificate, Also, our company is well equipped with complete equipment and advanced assembly lines that have a enviable quality control and assurance system. We strongly believe that we could provide high quality produces and the best customer satisfaction service as well as the best competitive price to our customers at any time.
The key of our success is quality and customer service. We have a
highly efficient team to deal with inquiries from customers. We are
experienced in selling goods to Europe and Asia and enjoy a good
reputation among clients.
We are seeking sincere cooperation with all interested companies.