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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

Datasheet 3D Models

High Power Flyback Transformers

for Power over Ethernet

Developed for Flyback DC/DC PoE Powered Devices (PD) power converters up to 71 W
Designed to meet IEEE802.3bt standard and operates with 36 – 57 V input
Perfect solution for high power PoE applications including Smart Building and IoT

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Count	Unit price
1	$4.29
175	$4.17
350	$3.80
700	$3.45
1400	$2.88
2800	$2.62
5000	$2.38

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

Termination

E = Tin-silver-copper over tin over nickel

Packaging

D = 13" machine-ready reel

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Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	Power (W)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Isat (A) 2	DCR max (mΩ)			Leakage Inductance max (µH) 3	Turns Ratio	Isolation Voltage (Vrms) 4	Secondary Output (V, A) 5
Part number (Hover for schematics)	Power (W)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Isat (A) 2	Pri	Sec	Aux	Leakage Inductance max (µH) 3	Pri : Sec : Aux	Isolation Voltage (Vrms) 4	Secondary Output (V, A) 5
POE62F-33E_	62	22.2	5.4	34.9	2.0	130	0.50	1 : 0.143 : 0.5	1500	3.3 V , 17.1 A
POE62F-50E_	62	22.2	5.4	34.9	2.8	130	0.38	1 : 0.214 : 0.5	1500	5 V , 11.3 A
POE62F-12E_	62	17.8	5.7	18.9	9.2	108	0.17	1 : 0.5 : 0.5	1500	12 V , 4.7 A
POE62F-24E_	62	17.8	5.7	18.9	36.3	108	0.12	1 : 1 : 0.5	1500	24 V , 2.4 A
POE62F-48E_	62	17.8	5.7	18.9	140	108	0.11	1 : 2 : 0.5	1500	48 V , 1.2 A
POE71F-33E_	71	18.9	6.3	34.9	2.0	130	0.50	1 : 0.143 : 0.5	1500	3.3 V , 19.7 A
POE71F-50E_	71	18.9	6.3	34.9	2.8	130	0.38	1 : 0.214 : 0.5	1500	5 V , 13 A
POE71F-12E_	71	15.5	6.6	18.9	9.2	108	0.17	1 : 0.5 : 0.5	1500	12 V , 5.4 A
POE71F-24E_	71	15.5	6.6	18.9	36.3	108	0.12	1 : 1 : 0.5	1500	24 V , 2.7 A
POE71F-48E_	71	15.5	6.6	18.9	140	108	0.11	1 : 2 : 0.5	1500	48 V , 1.35 A

Notes

Inductance is for the primary, measured at 250 kHz, 0.5 Vrms, 0 Adc.
DC current applied to the primary at 25°C that causes an inductance drop of <10% from its value without current.
Leakage inductance is for the primary with the secondary and aux windings shorted.
1500 Vrms, one minute isolation (hipot) between primary and auxillary to secondary.
Output is for the secondary. Output of the aux winding is 12 V, 30 mA.

Termination:

RoHS-compliant, halogen free. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

–40°C to +125°C

Storage temperature range:

Component: –40°C to +165°C
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+165°C (Ambient + temp rise)

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

See FIT/MTBF Calculations

Performance curves

Inductance vs Current

Schematics

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
175	330	100	13	50,4	44,4	44	32	4	2	12,0	0,5

General specification

Core Material:

Ferrite

Weight:

12 g – 14 g

Packaging:

175 per 13″ reel Plastic tape: 44 mm wide, 0.5 mm thick, 32 mm pocket spacing, 12 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.

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High Power Flyback Transformers

for Power over Ethernet

Selected configuration not available

Specifications

Termination:

Packaging:

Performance curves

Inductance vs Current

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

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Warning