Shenzhen Greenfair Electronics Co., Limited
| Packaging Details | carton box |
| spec. | EFD transformer |
| frequency | high frequency |
| core grade | PC40, 3C90,TP4 |
| bobbin material | Phenolic |
| phase | single |
| Coil Structure | Toroidal |
| Brand Name | Greenfair |
| Model Number | EDR series |
| Certification | CE, UL, ISO9001 |
| Place of Origin | China |
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Product Specification
| Packaging Details | carton box | spec. | EFD transformer |
| frequency | high frequency | core grade | PC40, 3C90,TP4 |
| bobbin material | Phenolic | phase | single |
| Coil Structure | Toroidal | Brand Name | Greenfair |
| Model Number | EDR series | Certification | CE, UL, ISO9001 |
| Place of Origin | China | ||
| High Light | high isolation transformer ，high frequency power transformer | ||
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
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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