SMT PoE Transformers
for NSC LM5072 PD Interface

• Developed for NSC LM5072 PD Interface for 24 Watt PoE applications
• Specified by NSC for its POE+PHYTEREV-I/-E eval board
• Five different outputs to match a variety of applications
• 1500 Vrms isolation from primary and auxiliary to secondary
• 18 – 57 V input voltage
• 11 V, 20 mA auxiliary winding output
• Coilcraft's DA2257-AL,  DA2383-AL and FA2519-AL are also specified for LM5072
• RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations.

Photo    Pricing    Materials declaration  FA2677  FA2898  FA2899  FA2900  FA2901

PDF data sheet

SPECIFICATIONS

Dimensions    Schematic    Tape and reel specifications

FA2677-AL_	50	40.8	26	2.6	328	2.20	1 : 0.12	1 : 0.41	2.9	3.3 V, 7.5 A
FA2898-AL_	50	40.8	26	4.0	315	1.05	1 : 0.18	1 : 0.41	2.9	5 V, 5 A
FA2899-AL_	50	40.8	26	13	315	0.473	1 : 0.35	1 : 0.41	2.9	9 V, 2.8 A
FA2900-AL_	50	40.8	26	20	315	0.409	1 : 0.47	1 : 0.41	2.9	12 V, 2.1 A
FA2901-AL_	50	40.8	26	37	305	0.381	1 : 0.59	1 : 0.41	2.9	15 V, 1.7 A

1	When ordering, please specify packaging code: e.g. FA2677-ALD
	Packaging:	D = 13" reel, machine-ready  EIA-481 embossed plastic tape (175 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, 0.7 Vrms, 0 Adc
3	Ipk is peak primary current drawn at minimum input voltage.
4	DCR for the primary and the secondary is with the windings connected in parallel.
5	Leakage inductance measured on the primary windings with all secondary pins shorted.
6	Turns ratios are with the primary windings and secondary windings connected in parallel.
7	Output is with the secondary windings connected in parallel.
8	Ambient temperature range:	–40°C to +125°C
9	Storage temperature range:	Component: –40°C to +125°C Packaging: –55°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.