Shenzhen Greenfair Electronics Co., Limited
| Packaging Details | carton box |
| type | EFD transformer |
| frequency | 1khz-200khz |
| core grade | PC40, 3C90,TP4 |
| bobbin material | Phenolic |
| phase | single |
| Coil Structure | Toroidal |
| Brand Name | Greenfair |
| Model Number | EFD series |
| Certification | CE, UL, ISO9001 |
| Place of Origin | China |
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Product Specification
| Packaging Details | carton box | type | EFD transformer |
| frequency | 1khz-200khz | core grade | PC40, 3C90,TP4 |
| bobbin material | Phenolic | phase | single |
| Coil Structure | Toroidal | Brand Name | Greenfair |
| Model Number | EFD series | Certification | CE, UL, ISO9001 |
| Place of Origin | China | ||
| High Light | hf power transformer ，high frequency power transformer | ||
EFD Series EFD40 SMD and THT type high frequency transformer with 2 section and cover
>>> Features
1. Custom design available
2. Extreme flatness
3. 8+8 pins
4. Through hole and surface mount 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
| no | winding | material | margin | tube | pin | turns | |||
| PIN1-8 side | PIN9-16 side | start | end | ||||||
| 1 | N8 | 2UEW Ø0.15mm*20P(LITZ wire) | TFL | TFL | 1,2--4,5 | 31Ts space | |||
| 2 | N1 | 2UEW Ø0.15mm*65P(LITZ wire) | 0.41*3mm | TFL | TFL | 9--13,14 | 2Ts space | ||
| 3 | N2 | 2UEW Ø0.15mm*65P(LITZ wire) | TFL | TFL | 13,14--10 | 2Ts space | |||
| 4 | N3 | 2UEW Ø0.15mm*65P(LITZ wire) | TFL | TFL | 10--12 | 1Ts space | |||
| 5 | N4 | 2UEW Ø0.15mm*65P(LITZ wire) | TFL | TFL | 11--9 | 1Ts space | |||
| 6 | N5 | 2UEW Ø0.15mm*65P(LITZ wire) | TFL | TFL | 12--16 | 1Ts space | |||
| 7 | N6 | 2UEW Ø0.15mm*65P(LITZ wire) | TFL | TFL | 15--11 | 1Ts space | |||
| 8 | N7 | 2UEW Ø0.4mm*1P | TFL | TFL | 15-A | 1Ts space | |||
| no | parameter | pin | test data | test condition | |||
| 1 | inductance | N8 | 450-550uH | 1KHZ,0.3V | |||
| 2 | leakage inductance | N8 | 70--130uH | 1KHZ,0.3V | |||
| 3 | Q Value | 30 MIN | 100KHZ,0.3V | ||||
| 4 | HI-POT | N8—N1,N2,N3,N4,N5,N6,N7 | 3750Vac without break | 1mA 60Sec | |||
| N8—CORE | 3750Vac without break | 1mA 60Sec | |||||
| N1,N2,N3,N4,N5,N6,N7—CORE | 1500Vac without break | 1mA 60Sec | |||||
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
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2006
Total Annual:
2000000-4000000
Employee Number:
100~400
Ecer Certification：
Active Member
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 Application... 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 Application...
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