Shenzhen Greenfair Electronics Co., Limited
Shenzhen Greenfair Electronics Co., Limited
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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