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
>>> Features
1. Custom design available
2. High reliability
3. Fully embedded within the core contours
4. High frequency
>>> 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. | MARGINAL TAPE | S--F | TURNS | WINDING FASHION |
ISOLATION BETWEEN WINDING | |||
| TOP | BOTTOM | ||||||||
| N1 | 2UEWФ0.40mm*2P | 4--9 | 42Ts | SPACED | 21mm*1Ts | ||||
| N2 | 2UEWФ0.25mm*1P | 9--11 | 240Ts | SPACED | 21mm*3Ts | ||||
| N3 | 2UEWФ0.25mm*1P | 6mm | 6mm | 8--5 | 2Ts | SPACED | 21mm*1Ts | ||
| N4 | 2UEWФ0.25mm*1P | 6mm | 6mm | 7--6 | 2Ts | SPACED |
21mm*2Ts |
||
| NO. | ITEM | MEASURE POINT | TECHNICAL DATA | REMARK | ||||
| 1 | IND | 4--11 | 8.9mH±10% | 10KHz/0.1V | ||||
| 2 | LIND | 4--11 | 6.5mH MAX | 10KHz/0.1V(SHORT OTHER PINS) | ||||
| 3 | DCR | 4--11 | 6.2Ω MAX | 20℃ | ||||
| 4 | HI-POT | PER-SEC | 3.0KVAC | 5mA 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