FA2677-ALD Coilcraft, FA2677-ALD Datasheet

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FA2677-ALD

Manufacturer Part Number
FA2677-ALD
Description
PoE Transformer
Manufacturer
Coilcraft
Datasheet

Specifications of FA2677-ALD

Lead_time
70
Pack_quantity
175
Comm_code
85045095
FA2677-AL_
FA2898-AL_
FA2899-AL_
FA2900-AL_
FA2901-AL_
1. When ordering, please specify a packaging code:
2. Inductance is for the primary, measured at 250 kHz, 0.7 Vrms, 0 Adc.
number
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
Part
1
Flyback Transformers
B = Less than full reel. In tape, but not machine ready.
±10% (µH)
L at 0 A
tape (175 per full reel).
To have a leader and trailer added ($25 charge), use
code letter D instead.
50
50
50
50
50
FA2898-ALD
2
min (µH)
L at Ipk
40.8
40.8
40.8
40.8
40.8
3
pri
26
26
26
26
26
DCR max (mOhms)
Dimensions are in
13
20
37
sec
2.6
4.0
inches
aux
328
315
315
315
305
mm
• Designed for 25 Watt PoE application
• Input range from 18 to 57 V
• Primary to secondary isolation: 1500 Vrms
• Auxiliary winding output: 11 V, 20 mA
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 13.6 – 13.9 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
Packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 175 per 13″ reel; Plastic tape: 44 mm wide, 0.4 mm
thick, 32 mm pocket spacing, 11.9 mm pocket depth
PCB washing Only pure water or alcohol recommended
3. Ipk is the peak current drawn at minimum input voltage.
4. DCR for the primary and the secondary is with windings connected in
5. Leakage inductance measured on the primary windings with all sec-
6. Turns ratios are with the primary windings and the secondary windings
7. Output is with the secondary windings connected in parallel.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
4
parallel.
ondary pins shorted.
connected in parallel.
Leakage
L (µH)
2.20
1.05
0.473
0.409
0.381
5
pri : sec
1 : 0.12
1 : 0.18
1 : 0.35
1 : 0.47
1 : 0.59
Turns ratio
For National Semiconductor
LM5072 High Power PD
The primary windings and the secondary
windings are to be connected in parallel
on the PC board.
Aux
Pri
1
2
4
3
5
6
pri : aux
Document 592 Revised 09/16/11
1 : 0.41
1 : 0.41
1 : 0.41
1 : 0.41
1 : 0.41
6
Ipk
(A)
2.9
2.9
2.9
2.9
2.9
Document 592
3
3.3 V, 7.5 A
5 V, 5 A
9 V, 2.8 A
12 V, 2.1 A
15 V, 1.7 A
Output
Sec
12
11
10
7
8
9
7

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