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PoE EP Series
YDS
3~27W PoE SMD High Frequency Power Transformer
Transformers for power over ethernet (PoE).
Designed for 200KHz switching frequency.
Power: 3W ~ 27W
Hipot voltage: 1500 Vrms
Custom designs available.
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.
| 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.
| 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.
| 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.
Files Download 
PoE-EP-Series.pdf
3~27W PoE SMD High Frequency Power Transformer
Transformers for power over ethernet (PoE).
Designed for 200KHz switching frequency.
Power: 3W ~ 27W
Hipot voltage: 1500 Vrms
Custom designs available.
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.
| 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.
| 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.
| 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.
Files Download PoE-EP-Series.pdf
