Datasheet 3D Models

Flyback Transformers

for Power over Ethernet

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

Buy Now:

Part number

Find my part

Count	Unit price
1	$3.29
200	$2.83
600	$2.46
1000	$1.93
2400	$1.64
5000	$1.51

For high volume or non-stock items, request a quote.

Termination

L = Tin-silver over tin over nickel

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

Request a Sample:

Part number

Find my part

Designer's Kit:

Kit	Values	Price
C372	10 (2 of each)	$53.00

Specifications

Electrical specifications at 25°C.

Samples of parts in red are available in Coilcraft Designer's Kit C372

Part number 1 (Hover for schematics)	Power (W)	Inductance at 0A (µH) 2 (Tolerance: ±10%)	Inductance min (µH)	DCR max 3			Leakage Inductance max (µH) 4	Turns Ratio 5	Isolation Voltage (Vrms) 6	Secondary Output (V, ) 7
Part number 1 (Hover for schematics)	Power (W)	Inductance at 0A (µH) 2 (Tolerance: ±10%)	Inductance min (µH)	Pri (Ω)	Sec (Ω)	Bias (Ω)	Leakage Inductance max (µH) 4	Pri : Sec : Bias	Isolation Voltage (Vrms) 6	Secondary Output (V, ) 7
POE13F-18LD	13	45.0	40.5 @ 2.3 A	0.195	0.005	0.195	7.9	1 : 0.07 : 0.36	1500	1.8 V , 7 A
POE13F-25LD	13	35.0	31.5 @ 2.2 A	0.095	0.005	0.150	4.2	1 : 0.08 : 0.33	1500	2.5 V , 5 A
POE13F-33LD	13	40.0	36.0 @ 2.2 A	0.138	0.007	0.180	3.4	1 : 0.11 : 0.36	1500	3.3 V , 4 A
POE13F-50LD	13	40.0	36.0 @ 2.1 A	0.130	0.009	0.165	1.9	1 : 0.15 : 0.35	1500	5 V , 3 A
POE13F-12LD	13	35.0	31.5 @ 2 A	0.095	0.017	0.150	0.6	1 : 0.35 : 0.35	1500	12 V , 1 A
POE60F-18LD	6	75.0	67.5 @ 1.3 A	0.195	0.005	0.195	8.0	1 : 0.07 : 0.36	1500	1.8 V , 3 A
POE60F-25LD	6	55.0	49.5 @ 1.2 A	0.095	0.005	0.150	4.6	1 : 0.08 : 0.33	1500	2.5 V , 2 A
POE60F-33LD	6	65.0	58.5 @ 1.2 A	0.138	0.007	0.180	3.9	1 : 0.11 : 0.36	1500	3.3 V , 2 A
POE60F-50LD	6	60.0	54.0 @ 1.1 A	0.130	0.009	0.165	2.3	1 : 0.15 : 0.35	1500	5 V , 1 A
POE60F-12LD	6	55.0	49.5 @ 1.1 A	0.095	0.017	0.150	2.4	1 : 0.35 : 0.35	1500	12 V , 500 mA
POE13F-19LD	13	37.0	33.3 @ 2 A	0.085	0.025	0.150	0.4	1 : 0.57 : 0.35	1500	19.5 V , 670 mA
POE13F-24LD	13	37.0	33.3 @ 2 A	0.086	0.049	0.150	0.4	1 : 0.67 : 0.33	1500	24 V , 540 mA

Notes

When ordering, please specify packaging code: e.g. POE13F-12LD
Inductance is for the primary, measured at 250 kHz, 0.3 Vrms.
DCR for the primary and for the secondary are with the windings connected in parallel.
Leakage inductance is for the primary windings with the secondary windings shorted.
Turns ratios are with the primary the secondary windings connected in parallel.
1500 Vrms isolation primary and bias windings to secondary windings.
Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 20 mA.

Termination:

RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

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.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +125°C

Storage temperature range:

Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Schematics

Primary windings and secondary windings
to be connected in parallel on PC board.

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
200	330	100	13	50,4	44,4	44	28	4	2	9,6	0,4

General specification

Core Material:

Ferrite

Weight:

5.0 – 5.6 g

Packaging:

200 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 28 mm pocket spacing, 9.6 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

Warehouses

Language settings

Currency settings

Flyback Transformers

for Power over Ethernet

Selected configuration not available

Specifications

Termination:

Packaging:

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Related product series

A9967-AL Surface Mount

AA1030-AL

C1023 PoE Transformer

C1048 PoE Transformer

C1099 Flyback Transformer

C1154 Flyback Transformer

C1173 Flyback Transformer

C1453 Flyback Transformer

SMT PoE Transformers

7 Watt PoE Transformers

3 Watt PoE Transformers

D1766-AL PoE Transformer

DA2062-AL PoE Transformer

DA2257-AL PoE Transformer

DA2362-AL PoE Transformer

Flyback Transformer

DA2420-AL and DA2421-AL PoE Transformers

ETH1-230 High Power

ETH1-460 PoE

FA2519-AL PoE Transformer

Midspan PoE Plus Magnetics

FA2636 Flyback Transformer

FA267x and FA2732 PoE Transformers

Flyback Transformers

FA2706 Flyback Transformer

SMT Flyback Transformers

GA3271-AL Flyback Transformer

GA3429-BL Flyback Transformer

GA3568, HA3809 Flyback Transformers

Flyback Transformer

Flyback Transformers

HA380x Flyback Transformer

HA3905 Flyback Transformer

High Power PoE Plus

JA4456-DL Flyback Transformers

PA6582-AL Flyback Transformer

120 W PoE SMT Planar Transformers

POE300 Flyback Transformers

POE600F 60 W PoE Transformers

Miniature Flyback Transformers

High Power Flyback Transformers

POExxP Flyback Transformers

Flyback & Forward Transformers

POExxQ High Power Flyback Transformers

High Power Transformers

WA8704-ALD

ZA9609-AE Active Clamp Forward Topology

Warning