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TSP-EFD20 SERIES（15-19）
POE Transformer
  • Designed to meet 30 W PoE IEEE 802.3at-2009 standard.
  • Operates at 250 kHz with 36 ~ 72 Volts input.
  • Bias winding output: 12 V; sync winding output: 5 V.
  • One minute isolation (hipot): 1500 Vrms, from primary and bais to secondary.
  • Operating temperature range: -40°C~+125°C, self-temperature rise included.
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Datasheet

Product specifications
Pri.:Sec.:Bias:sync.
Pri.:Sec.:Bias:sync.
TSP-EFD20S15 72.9 0.43 27.5 5 250 160 1 :0.33 :1 :0.56 36 ~ 57 3.3 , 9 30 1500 Forward 802.3at Class 4
TSP-EFD20S16 72.9 0.42 27.5 10 250 160 1 :0.44 :1 :0.56 36 ~ 57 5 , 6 30 1500 Forward 802.3at Class 4
TSP-EFD20S17 72.9 0.18 27.5 28.5 250 160 1 :1 :1 :0.56 36 ~ 57 12 , 2.5 30 1500 Forward 802.3at Class 4
TSP-EFD20S18 72.9 0.24 27.5 32 235 120 1 :1.44 :1 :0.88 36 ~ 57 19.5 , 1.55 30 1500 Forward 802.3at Class 4
TSP-EFD20S19 72.9 0.24 27.5 72.5 235 120 1 :1.78 :1 :0.88 36 ~ 57 24 , 1.25 30 1500 Forward 802.3at Class 4

Notes:

1. All electrical specifications are referenced to 25°C ± 5°C ambient.
2. The inductance is for the primary, measured at 250 kHz, 0.2 Vrms, 0 ADC.
3. The leakage inductance is for the primary with all secondary windings shorted.
4. DCR for the primary and the secondary is measured with the windings connected in parallel.
5. Turns ratio is with the primary windings and the secondary windings connected in parallel.
6. Output is with the secondary windings connected in parallel.

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