Document
Document 745-1
Shielded Power Inductors –XFL4020www.DataSheet4U.com
• Exceptionally low DCR – 10.8 mOhm • Excellent current handling capability
Designer’s Kit C436 contains 5 each of all values
Terminations RoHS compliant tin-silver over copper. Other terminations available at additional cost.
Weight 162 – 169 mg
Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current.
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)
Mean Time Between Failures (MTBF) 26,315,789 hours
Packaging 1000/7″reel; 3500/13″ reel Plastic tape: 12 mm wide, 0.23 mm thick, 8 mm pocket spacing, 2.3 mm pocket depth
PCB washing Only pure water or alcohol recommended
Part number1
XFL4020-102ME_ XFL4020-152ME_ XFL4020-222ME_ XFL4020-332ME_ XFL4020-472ME_
Inductance2 ±20% (µH)
1.0 1.5 2.2 3.3 4.7
DCR (mOhms)
typ3
max3
10.80 14.40 21.35 34.80 52.20
11.90 15.80 23.50 38.30 57.40
SRF typ4 (MHz)
64 59 38 33 26
10% drop
4.5 4.1 3.1 2.7 2.0
Isat (A)5 20% drop
5.1 4.4 3.5 2.8 2.5
30% drop
5.4 4.6 3.7 2.9 2.7
Irms (A)6 20°C rise 40°C rise
8.0 11.0 6.7 9.1 6.0 8.0 3.9 5.2 3.6 5.0
1. When ordering, please specify packaging code:
XFL4020-472MEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1000 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 C instead.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3500 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. 5. DC current at which the inductance drops the specified amount from its
value without current. 6. Current that causes the specified temperature rise from 25°C ambient. 7. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.157 ±0.012 4,0 ±0,3
XXX
Dash number
0.157 ±0.012 4,0 ±0,3
0.033 0,85
0.083 2,10
max
Recommended Land Pattern
0.154 3,90
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 components. Therefore temperature rise should be verified in application conditions.
0.063 1,6
Dimensions are in
inches mm
Specifications subject to change without notice. Please check our website for latest information.
0.126 3,2
0.145 3,7
0.039 1,0
Document 745-1 Revised 01/19/10
© Coilcraft, Inc. 2010
Document 745-2
SMT Power Inductors – XFL4020 Series
www.DataSheet4U.com
L vs Current
10
L vs Frequency
10
4.7 µH 3.3 µH 2.2 µH
1.5 µH
1.0 µH 1
4.7 µH
3.3 µH 2.2 µH
1.5 µH
1.0 µH 1
Inductance (µH)
Inductance (µH)
0.1 0.01
0.1 1
Current (A)
0.1 10 0.1
1.0 10
Frequency (MHz)
100
ESR vs Frequency
Equivalent Series Resistance (Ohms)
50 45 40
35 30 25 20 15 10
5 0
0.1
4.7 µH 3.3 µH 2.2 µH 1.5 µH 1.0 µH
1 10
Frequency (MHz)
100
Irms Derating
Percent of rated Irms
25°C
120 110
100
90
80
70
60
50
40
30
20
10
0 -40
-20
0 20 40 60 80 100 120 140
Ambient temperature (°C)
© Coilcraft, Inc. 2010
Specifications subject to change without notice. Please check our website for latest information.
Document 745-2 Revised 01/19/10
.