Document 935-1
Shielded Power Inductors
–
XFL4012
• High current ratings and low DCR
• Very low profile, only 1.2 mm high
Designer’s Kit C455 contains 5 of each XFL4012 and XFL4015 value.
Core material Composite
Weight 85 – 95 mg
Environmental RoHS compliant, halogen free
Terminations RoHS compliant tin-silver (96.5/3.5) over copper.
Other terminations available at additional cost.
Ambient temperature –40°C to +125°C with (40°C rise) Irms current.
Maximum part temperature +165°C (ambient + temp rise). Derating.
Storage temperature Component: –40°C to +165°C.
Tape and reel 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 1500/7″ reel; 5000/13″ reel Plastic tape: 12 mm wide,
0.23 mm thick, 8 mm pocket spacing, 1.40 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
DCR (mOhms)3
Isat (A)5
Irms (A)6
±2°C rise 42°C rise
Inductance2
±±20 (ꢀµ)
SRF typ4
(Mµz)
Part number1
typ
max
120 drop ±20 drop 320 drop
XFL4012-121ME_
XFL4012-251ME_
XFL4012-471ME_
XFL4012-601ME_
0.12
0.25
0.47
0.60
5.20
7.64
14.07
17.40
5.88
8.40
15.48
19.14
220
150
115
95.0
6.9
4.4
3.2
2.8
9.8
7.7
5.5
5.0
11.3
9.7
6.7
6.5
9.60
8.15
6.25
5.45
13.20
11.45
8.70
7.65
1. When ordering, please specify termination and packaging codes:
XFL421±-621MEC
Termination: E = RoHS compliant tin-silver over copper.
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1500 parts per full reel).
Irms Testing
Irms testing was performed on
0.75 inch wide × 0.25 inch thick
copper traces in still air.
Temperature rise is highly
dependent on many factors
including pcb land pattern, trace
size, and proximity to other com-
ponents. Therefore temperature
rise should be verified in appli-
cation conditions.
B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added
($25 charge), use code letter C instead.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked
(5000 parts per full reel).
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using Agilent/HP 4395A or equivalent.
value without current. Click for temperature derating information.
6. Current that causes the specified temperature rise from 25°C ambient.This information is for reference only
and does not represent absolute maximum ratings. Click for temperature derating information.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 935-1 Revised 09/01/15
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