Flyback Transformers
for Power over Ethernet

New RoHS part numbers are shown. Lead was removed from terminations. The second to the last character is now L to indicate RoHS compliance. (View old data sheet.)

Developed for Powered Devices (PD) in IEEE 802.3af compliant PoE applications
6 Watt and 13 Watt output versions
36 – 72 V input, 250 kHz switching frequency
Bias winding output: 12 V, 20 mA
1500 Vrms isolation primary and bias windings to secondary windings
RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations
Samples of all values are available in Coilcraft Designer's Kit C372

Photo Pricing Materials declaration POE13F POE60F PDF data sheet

SPECIFICATIONS

Dimensions Schematic Tape and reel specifications

Parts in red type are included in Coilcraft Designer's Kit C372


POE60F-18L_	6	75.0	67.5	0.195	0.005	0.195	8.0	1 : 0.07	1 : 0.36	1.3	1.8 V, 3.3 A
POE60F-25L_	6	55.0	49.5	0.095	0.005	0.150	4.6	1 : 0.08	1 : 0.33	1.2	2.5 V, 2.4 A
POE60F-33L_	6	65.0	58.5	0.138	0.007	0.180	3.9	1 : 0.11	1 : 0.36	1.2	3.3 V, 1.8 A
POE60F-50L_	6	60.0	54.0	0.130	0.009	0.165	2.3	1 : 0.15	1 : 0.35	1.1	5.0 V, 1.2 A
POE60F-12L_	6	55.0	49.5	0.095	0.017	0.150	0.7	1 : 0.35	1 : 0.35	1.1	12.0 V, 0.5 A
POE13F-18L_	13	45.0	40.5	0.195	0.005	0.195	7.9	1 : 0.07	1 : 0.36	2.3	1.8 V, 7.2 A
POE13F-25L_	13	35.0	31.5	0.095	0.005	0.150	4.2	1 : 0.08	1 : 0.33	2.2	2.5 V, 5.2 A
POE13F-33L_	13	40.0	36.0	0.138	0.007	0.180	3.4	1 : 0.11	1 : 0.36	2.2	3.3 V, 3.9 A
POE13F-50L_	13	40.0	36.0	0.130	0.009	0.165	1.9	1 : 0.15	1 : 0.35	2.1	5.0 V, 2.6 A
POE13F-12L_	13	35.0	31.5	0.095	0.017	0.150	0.6	1 : 0.35	1 : 0.35	2.1	12 V, 1.1 A
POE13F-19L_	13	37.0	33.3	0.085	0.025	0.385	0.4	1 : 0.57	1 : 0.35	2.0	19.5.0 V, 0.67 A
POE13F-24L_	13	37.0	33.3	0.086	0.049	0.370	0.4	1 : 0.67	1 : 0.33	2.0	24 V, 0.54 A

1	When ordering, please specify packaging code: e.g. POE13F-12LD
	Packaging:	D = 13" machine-ready reel EIA 481 embossed plastic tape (200 parts per full reel). B = Less than full reel In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.

2	Inductance is for the primary, measured at 250 kHz, 0.3 Vrms, 0 Adc
3	Ipk: Peak primary current drawn at minimum input voltage.
4	DCR for the primary and for the secondary are with the windings connected in parallel.
5	Leakage inductance is for the primary winding with the secondary winding shorted.
6	Turns ratios are with the primary the secondary windings connected in parallel.
7	Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 20 mA.
8	Ambient temperature range:	–40°C to +125°C
9	Storage temperature range:	Component: –40°C to +125°C Packaging: –40°C to +80°C
10	Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
11	Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.

Flyback Transformers for Power over Ethernet

SPECIFICATIONS