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| Categories | High Frequency Transformer | 
|---|---|
| Brand Name: | Greenfair | 
| Model Number: | EFD series | 
| Certification: | CE, UL, ISO9001 | 
| Place of Origin: | China | 
| MOQ: | 1000pcs | 
| Packaging Details: | carton box | 
| spec.: | EFD transformer | 
| frequency: | high frequency | 
| core grade: | PC40, 3C90,TP4 | 
| bobbin material: | Phenolic | 
| phase: | single | 
| Coil Structure: | Toroidal | 
EFD Series high frequency transformer with low height and high power
>>> Features
1. IEC-spacing compatible
2. Low leakage inductance designs
3. Through hole and surface mount available
4. Low building height / profile design
5. High thoughput power-density
6. Custom design available
>>> 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
>>> Packaging & Delivery
Packaging Details: carton box, plastic pallet, package testing
dropping before shipping
Delivery Time: 3-4weeks

| NO. | ITEM | MEASURE POINT | TECHNICAL DATA | REMARK | ||||
| 1 | INDUCTANCE | 1--2 | 4700µH±5% | 1KHz 0.3V //CH1061 | ||||
| 9--10 | 72µH TYPE | 1KHz 0.3V //CH1061 | ||||||
| 2 | HI-POT | P---S | 1000VAC | 5mA 60S | ||||
| P/S---C | 500VAC | 5mA 60S | ||||||
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

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