SMD High Efficiency PoE Transformer, PoE up to 27W
PoE EP Series
3~27W PoE SMD High Frequency PD Transformer, 8PIN & 10PIN SMD Package, For PoE applications
Transformers are designed for 200KHz switching frequency. EP series has PoE function, power range is 3~27W. There are wide variety of size and values to choose from.
Yuan Dean can provide high efficiency production solutions and customized products.
Features
- Transformers for power over ethernet (PoE).
- Designed for 200KHz switching frequency.
- Power: 3W ~ 27W
- Hipot voltage: 1500 Vrms
- Custom designs available.
Applications
- computer equipment.
- Internet equipment.
- AC main power supply system.
- industrial control.
- telecom equipment.
Specification
- Operating temperature range: -40°C to +125°C
- Storage temperature range: -55°C to +125°C
- Solder reflow temperature: +245°C for 10 second max
- RoHS Compliant version is available.
EP7 8PIN SMD
| Part Number | Turn Ratio Pri:Sec:AUX ① | L ② (uH ± 10%) | Input | LK ③ Max (uH) | DCR ④ (Ohms MAX) | Output Voltage ⑤ | ||
|---|---|---|---|---|---|---|---|---|
| Pri | Aux | Sec | ||||||
| 07SEP-5011SNL | 1:0.083:0.208 | 500 | 33 ~ 57V, 200KHZ | 7.5 | 1.75 | 0.215 | 0.015 | Vo=3.3V/3W, 8V/20mA |
| 07SEP-3111SNL | 1:0.182:0.682 | 310 | 33 ~ 57V, 200KHZ | 5.0 | 1.60 | 2.60 | 0.045 | Vo=3.3V/3W, 12V/20mA |
| 07SEP-5012SNL | 1:0.125:0.208 | 500 | 33 ~ 57V, 200KHZ | 7.5 | 1.75 | 0.215 | 0.035 | Vo=5.00V/3W, 8V/20mA |
| 07SEP-3112SNL | 1:0.273:0.682 | 310 | 33 ~ 57V, 200KHZ | 5.0 | 1.60 | 2.65 | 0.087 | Vo=5.00V/3W, 12V/20mA |
| 07SEP-5211SNL | 1:0.286:0.204 | 521 | 33 ~ 57V, 200KHZ | 7.5 | 1.75 | 0.22 | 0.100 | Vo=12V/3W, 8V/20mA |
| 07SEP-3113SNL | 1:0.682:0.682 | 310 | 33 ~ 57V, 200KHZ | 5.0 | 1.60 | 2.60 | 0.55 | Vo=12V/3W, 12V/20mA |
① Turns ratio is with the secondary windings connected in parallel.
② L(NOM) = Nominal Inductance is for pri winding, measured at 200KHz,0.1Vrms,0Adc.
③ Leakage inductance measured between Pri other pins shorted.
④ DCR for the secondary windings connected in parallel.
⑤ Output is with the secondary windings connected in parallel.
EP10 8PIN SMD
| Part Number | Turn Ratio Pri:Sec:AUX ① | L ② (uH ± 10%) | Input | LK ③ Max (uH) | DCR ④ (Ohms MAX) | Schematic | Output Voltage ⑤ | ||
|---|---|---|---|---|---|---|---|---|---|
| Pri | Aux | Sec | |||||||
| 10SEP-2502TNL | 1:0.100:0.150 | 25.2 | 36 ~ 72V, 300KHZ | 2.0 | 0.25 | 0.02 | 0.0035 | B | Vo=3.3V/10W, 5V/100mA |
| 10SEP-2512SNL | 1:0.083:0.208 | 253 | 33 ~ 57V, 200KHZ | 7.5 | 0.42 | 0.115 | 0.0075 | A | Vo=3.3V/7W, 8V/20mA |
| 10SEP-1511SNL | 1:0.182:0.682 | 155 | 33 ~ 57V, 200KHZ | 5.0 | 0.53 | 0.90 | 0.031 | A | Vo=3.3V/7W, 12V/20mA |
| 10SEP-2001SNL | 1:0.222:0.555 | 20.4 | 9 ~ 50V, 200KHZ | 1.5 | 0.08 | 0.15 | 0.0075 | A | Vo=3.3V/10W, 8V/20mA |
| 10SEP-2001FNL | 1:0.444:0.388 | 20.4 | 9 ~ 50V, 200KHZ | 1.5 | 0.08 | 0.105 | 0.03 | A | Vo=3.3V/10W, 5V/20mA |
| 10SEP-2513SNL | 1:0.125:0.208 | 253 | 33 ~ 57V, 200KHZ | 7.5 | 0.42 | 0.115 | 0.016 | A | Vo=5V/7W, 8V/20mA |
| 10SEP-1512SNL | 1:0.273:0.682 | 155 | 33 ~ 57V, 200KHZ | 5.0 | 0.57 | 1.00 | 0.040 | A | Vo=5V/7W, 12V/20mA |
| 10SEP-2611SNL | 1:0.286:0.204 | 264 | 33 ~ 57V, 200KHZ | 7.5 | 0.80 | 0.115 | 0.045 | A | Vo=12V/7W, 8V/20mA |
| 10SEP-1611SNL | 1:0.682:0.682 | 155 | 33 ~ 57V, 200KHZ | 5.0 | 0.54 | 0.92 | 0.37 | A | Vo=12V/7W, 12V/20mA |
① Turns ratio is with the secondary windings connected in parallel.
② L(NOM) = Nominal Inductance is for pri winding, measured at 200KHz, 0.1Vrms, 0Adc.
③ Leakage inductance measured between Pri with other pins shorted.
④ DCR for the secondary windings connected in parallel.
⑤ Output is with the secondary windings connected in parallel.
EP13 10PIN SMD
| Part Number | Turn Ratio Pri:Sec:AUX ① | L ② (uH ± 10%) | Input | LK ③ Max (uH) | DCR ④ (Ohms MAX) | Schematic | Output Voltage ⑤ | ||
|---|---|---|---|---|---|---|---|---|---|
| Pri | Aux | Sec | |||||||
| 13SEP-1213ZNL | 1:0.083:0.208 | 127 | 33 ~ 57V, 200KHZ | 7.5 | 0.44 | 0.088 | 0.006 | A | Vo=3.3V/13.5W, 8V/20mA |
| 13SEP-1611AUNL | 1:0.167:0.639 | 155.5 | 33 ~ 57V, 200KHZ | 5.0 | 0.33 | 0.65 | 0.011 | B | Vo=3.3V/11W, 12V/20mA |
| 13SEP-7801ZNL | 1:0.182:0.682 | 77.4 | 33 ~ 57V, 200KHZ | 5.0 | 0.10 | 0.27 | 0.0085 | A | Vo=3.3V/13.5W, 12V/20mA |
| 13SEP-1212ZNL | 1:0.125:0.208 | 127 | 33 ~ 57V, 200KHZ | 7.5 | 0.46 | 0.094 | 0.012 | A | Vo=5V/13.5W, 8V/20mA |
| 13SEP-7701ZNL | 1:0.273:0.682 | 77.4 | 33 ~ 57V, 200KHZ | 0.8 | 0.22 | 0.25 | 0.018 | A | Vo=5V/13.5W, 12V/20mA |
| 13SEP-1211ZNL | 1:0.292:0.208 | 127 | 33 ~ 57V, 200KHZ | 7.5 | 0.46 | 0.094 | 0.055 | A | Vo=12V/13.5W, 8V/20mA |
| 13SEP-7802ZNL | 1:0.682:0.682 | 77.4 | 33 ~ 57V, 200KHZ | 5.0 | 0.10 | 0.27 | 0.075 | A | Vo=12V/13.5W, 12V/20mA |
| 13SEP-2801ZNL | 1:0.470:0.294 | 28.9 | 33 ~ 57V, 200KHZ | 1.0 | 0.058 | 0.055 | 0.027 | A | Vo=15V/27W, 8V/20mA |
① Turns ratio is with the secondary windings connected in parallel.
② L(NOM) = Nominal Inductance is for pri winding, measured at 200KHz, 0.2Vrms, 0Adc.
③ Leakage inductance measured between Pri with other pins shorted.
④ DCR for the secondary windings connected in parallel.
⑤ Output is with the secondary windings connected in parallel.
Certification

- Mechanicals and Dimensions
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Details- Files Download
High Frequency Transformer for PoE Solution PoE EP Series
3~27W PoE Solution SMD High Frequency Transformer PDF Catalogue
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SMD High Efficiency PoE Transformer, PoE up to 27W - 3~27W PoE SMD High Frequency PD Transformer, 8PIN & 10PIN SMD Package, For PoE applications | Taiwan-Based Power Supply & Magnetic Components Manufacturer | YUAN DEAN SCIENTIFIC CO., LTD.
Based in Taiwan since 1990, YUAN DEAN SCIENTIFIC CO., LTD. has been a power converter, transformer, magnetic components manufacturer in Electronic Components Industry. Their main products, include SMD High Efficiency PoE Transformer, PoE up to 27W, DC-DC Converters, AC-DC Converters, RJ45 Magnetics, Converter Transformers, LAN Filters, High Frequency Transformers, POE Transformers, Inductors and LED drivers, which are RoHS approved with ERP system implemented.
YDS was established in 1990 at Tainan, Taiwan and our factory Ho Mao electronics was established in 1995 at Xiamen, China. We are the leading electronic manufacturer with ISO 9001, ISO 14001 and IATF16949 certified. We Produce various products such as DC/DC converter, AC/DC converter, RJ45 with magnetics, 10/100/1G/2.5G/10G Base-T Lan filter, all kinds of Transformer,Lighting products and Power bank. ISO 9001 & ISO 14001, IATF16949 certified power converter, high frequency transformer, magnetic component with reliable EMC and EMI / EMS / EDS lab tests. Power converter solutions for medical, railway, POE, etc.
YDS has been offering customers high-quality power supply and magnetic components, both with advanced technology and 25 years of experience, YDS ensures each customer's demands are met.










