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Document 490-1
SMT Power Inductors - SER2800 Series
* Perfect for high current, low voltage power supply applications * Extremely low DCR; Current handling to >100 Amps * Higher inductance values than other SER series - up to 33 H
Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS compliant tin-silver over copper. Other terminations available at additional cost. Weight SER2814L - 27.5 g; SER2814H - 28.7 g; SER2817H - 34.7 g Ambient temperature -40C to +85C with Irms current, +85C to +125C with derated current Storage temperature Component: -40C to +125C. Packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 85% relative humidity) Mean Time Between Failures (MTBF) 26,315,789 hours Packaging 25 pieces per tray PCB washing Only pure water or alcohol recommended
DCR2 Inductance1 SRF (mOhms) 10% typ3 Part number (H) nom max (MHz) SER2814L-152KL 1.5 1.47 1.62 60 SER2814H-222KL 2.2 1.83 2.01 40 SER2814L-222KL 2.2 1.47 1.62 50 SER2817H-332KL 3.3 2.56 2.82 40 SER2814H-332KL 3.3 1.83 2.01 30 SER2814L-332KL 3.3 1.47 1.62 40 SER2817H-472KL 4.7 2.56 2.82 30 SER2814H-472KL 4.7 1.83 2.01 25 SER2814L-472KL 4.7 1.47 1.62 30 SER2817H-682KL 6.8 2.56 2.82 25 SER2814H-682KL 6.8 1.83 2.01 20 SER2814L-682KL 6.8 1.47 1.62 25 SER2817H-103KL 10 2.56 2.82 20 SER2814H-103KL 10 1.83 2.01 15 SER2814L-103KL 10 1.47 1.62 20 SER2817H-153KL 15 2.56 2.82 16 SER2814H-153KL 15 1.83 2.01 12 SER2814L-153KL 15 1.47 1.62 15 SER2817H-223KL 22 2.56 2.82 15 SER2814H-223KL 22 1.83 2.01 10 SER2814L-223KL 22 1.47 1.62 10 SER2817H-333KL 33 2.56 2.82 10 SER2814H-333KL 33 1.83 2.01 8 SER2814L-333KL 33 1.47 1.62 7
10% drop 100 100 82.0 91.0 62.0 48.0 59.0 42.0 33.0 42.0 30.0 22.0 28.0 18.0 13.0 18.0 11.5 7.5 12.0 7.0 4.5 7.0 4.0 2.0
Isat (A)4 Irms (A)5 20% 30% 20C 40C drop drop rise rise >100 >100 20 30 >100 >100 20 30 84.0 84.8 20 30 92.5 93.6 20 28 66.9 68.4 20 30 54.0 57.0 20 30 61.2 62.4 20 28 48.0 50.1 20 30 36.9 39.0 20 30 45.0 45.9 20 28 34.5 36.2 20 30 26.0 27.8 20 30 31.2 32.1 20 28 21.5 23.4 20 30 16.2 17.6 20 30 21.2 21.9 20 28 14.0 15.2 20 30 9.8 11.0 20 30 14.0 15.0 20 28 8.6 9.6 20 30 6.0 6.8 20 30 8.7 9.6 20 28 5.1 5.9 20 30 2.6 3.3 20 30
1. Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. 2. DCR measured on a Keithley 580 microohmmeter or equivalent. 3. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 4. DC current at which the inductance drops the specified amount from its value without current. 5. Current that causes a the specified temperature rise from 25C ambient. 6. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering.
Caution: This series is not intended for use in high vibration or mechanical shock environments. We advise using additional means of securing the part to the circuit board to ensure its adhesion. Consider our SER2900 series, which offers nearly identical electrical characteristics and incorporates a third mount pad for better stability and board adhesion.
Specifications subject to change without notice. Please check our website for latest information. Document 490-1
Revised 08/22/08
(c) Coilcraft, Inc. 2008
Document 490-2
SMT Power Inductors - SER2800 Series
1.10 max 27,9
Recommended Land Pattern
1.100 max 27,94
SER28XXX COILCRAFT XX
0.76 max 19,3 0.455 11,56 0.220 5,59
C L
0.160 4,06
0.240 6,10
0.210 5,33
0.190 4,83
Height (See table)
0.004/0,102 Maximum height SER2814L 0.560 / 14,22 SER2814H 0.560 / 14,22 0.655 / 16,64 SER2817H
0.150 3,8 0.270 6,9
Temperature Rise vs Current
80
Current Derating
120 110 100
Temperature rise (from 25C)
70
Percent of rated current
60 50 40 30 20 10 0 0 10 20 30 40 50 60
90 80 70 60 50 40 20 10 0 -40 -20 30 Isat Irms 0 20
25C
40
60
80
100
120 140
Current (A rms)
Ambient temperature (C)
Specifications subject to change without notice. Please check our website for latest information. Document 490-2
Revised 10/20/08
(c) Coilcraft, Inc. 2008
Document 490-3
SMT Power Inductors - SER2800 Series
L vs Current
100
33 H
L vs Frequency
100
33 H
Inductance (H)
Inductance (H)
22 H 15 H
22 H 15 H
10
10 H 6.8 H 4.7 H 3.3 H 2.2 H
10
10 H 6.8 H 4.7 H 3.3 H 2.2 H 1.5 H
1
SER2814L
0.1 1
1.5 H
SER2814L 1
10 100 0.1 1 10 100
Current (A)
Frequency (MHz)
100
100
33 H
33 H
Inductance (H)
Inductance (H)
22 H 15 H
22 H
10
15 H 10 H 6.8 H
10
10 H 6.8 H 4.7 H 3.3 H 2.2 H
1
4.7 H 3.3 H 2.2 H
1 SER2814H 0.1
0.1
SER2814H
0.1 1 10 100
1
10
100
Current (A)
Frequency (MHz)
100
100
33 H
33 H
Inductance (H)
22 H 15 H
Inductance (H)
22 H
10
15 H 10 H 6.8 H 4.7 H 3.3 H
10
10 H 6.8 H 4.7 H 3.3 H
1
1
SER2817H
0.1 1 10 100
0.1
SER2817H
0.1 1 10 100
Current (A)
Frequency (MHz)
Specifications subject to change without notice. Please check our website for latest information. Document 490-3 Revised 10/20/08
(c) Coilcraft, Inc. 2008
Document 490-4
SMT Power Inductors - SER2800 Series
ESR vs Frequency
2000
SER2814L
Equivalent Series Resistance (Ohms)
1750 1500 1250 1000 750 500 250 0 0.1 1 10 100
33 H 22 15 H H 10 H
Frequency (MHz)
Equivalent Series Resistance (Ohms)
SER2814H
1750 1500 1250 1000 750 500 250 0 0.1 1
33 H 22 H
2000
15 H
10 H
10
6.8 H 4.7 H
3.3 2.2 H H
Frequency (MHz)
Equivalent Series Resistance (Ohms)
SER2817H
1500 1250 1000 750 500 250 0 0.1 1
22 H
1750
10
15 H 10 H 6.8 H 3.3 H 4.7 H
33 H
2000
Frequency (MHz)
Specifications subject to change without notice. Please check our website for latest information. Document 490-4
6.8 4.7 H 3.3 H 2.2 H H 1.5 H
100
100
Revised 10/20/08
(c) Coilcraft, Inc. 2008

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