Shenzhen Greenfair Electronics Co., Limited
| Packaging Details | carton box |
| type | EFD transformer |
| frequency | 1khz-200khz |
| core grade | PC40, 3C90,TP4 |
| bobbin material | Phenolic |
| assemble | SMD +THT |
| sections | four or more |
| Brand Name | Greenfair |
| Model Number | EFD series |
| Certification | CE, UL, ISO9001 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Packaging Details | carton box | type | EFD transformer |
| frequency | 1khz-200khz | core grade | PC40, 3C90,TP4 |
| bobbin material | Phenolic | assemble | SMD +THT |
| sections | four or more | Brand Name | Greenfair |
| Model Number | EFD series | Certification | CE, UL, ISO9001 |
| Place of Origin | China | ||
| High Light | high isolation transformer ，high frequency power transformer | ||
EFD Series 4 sections THT and SMD high frequency transformer EFD25, EFD30,35
>>> Features
1. Custom design available
2. 120°C Maximum operating temperature
3. Resistance to soldering heat
4. 16 pins horizontal transformer
>>> 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. | MATERIAL SPEC. | MARGINAL TAPE | TUBE TYPE | S--F | TURNS | WINDING FASHION |
ISOLATION BETWEEN WINDING | ||||
| PIN1--8 | PIN9--18 | S | F | ||||||||
| N1 | TEX-Eφ0.3mm | TFL | 7--8 | 18 | CLOSE | ||||||
| N2 | TEX-Eφ0.2mm | 5--6 | 18 | CLOSE | 1Ts | ||||||
| N3 | 2UEWφ0.15mm | 3mm | 3.5mm | TFL | 1--3 | 29 | CLOSE | 1Ts | |||
| N4 | 2UEWφ0.15mm | 3.5mm | 3.5mm | 3--2 | 7 | CLOSE | 3Ts | ||||
| N5 | 2UEWφ0.2mm | 3.5mm | 1.5mm | TFL | 15--16 | 29 | CLOSE | 1Ts | |||
| N6 | 2UEWφ0.15mm | 3.5mm | 3mm | TFL | 16--14 | 7 | CLOSE | 1Ts | |||
| N7 | 2UEWφ0.15mm | 3.5mm | 3mm | TFL | 10--9 | 29 | CLOSE | 1Ts | |||
| N8 | 2UEWφ0.15mm | 3.5mm | 3mm | TFL | 9--11 | 7 | CLOSE | 2Ts | |||
| NO. | ITEM | MEASURE POINT | TECHNICAL DATA | REMARK | |
| 1 | IND | N1 | 118uH±10% | 1KHz 0.1V | |
| 2 | IND | N2 | 105uH±10% | 1KHz 0.1V | |
| 3 | IND | N3/N5/N7 | 307uH±10% | 1KHz 0.1V | |
| 4 | IND | N4/N6/N8 | 18uH±10% | 1KHz 0.1V | |
| 5 | LK | N1 | 4uH MAX | 1KHz 0.1V | |
| 6 | CP | N1 | 25 PF MAX | 100KHz 1V | |
| 7 | DCR (25℃) | R(N2)≤678mΩ;R(N3)≤1178mΩ;R(N4)≤284mΩ;R(N5)≤663mΩ;R(N6)≤284mΩ;R(10-9)≤128.5mΩ;R(N7)≤1178mΩ;R(N8)≤284mΩ; | |||
| 8 | HI-POT | N5,N6--N3,N4 | 4KVDC | 5mA1S | |
| 9 | HI-POT | PRI--SEC | 4KVDC | 5mA1S | |
It is recommended that the temperature of the part does not exceed +125°C under worst case conditions.General information:
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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