SER3018H

Document 874-1
Shielded Power Inductors – SER3018H
• Same electrical specifications and land pattern as the SER2918H
• Mounting plate with three pads for excellent board adhesion
• Extremely low DCR; current handling up to 93.6 Amps
Core material Ferrite
Core and winding loss See www.coilcraft.com/coreloss
Environmental RoHS compliant, halogen free
Terminations RoHS compliant matte tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 36.2 g
Ambient temperature –40°C to +85°C with (40°C rise) Irms current.
Maximum part temperature +125°C (ambient + temp rise). Derating.
Storage temperature Component: –40°C to +125°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 25 pieces per tray
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
DCR (mOhms)3 SRF typ4 Isat (A)5
Inductance2
1
Part number ±10% (µH)
nom max
(MHz)
10% drop 20% drop 30% drop
SER3018H-332KE
3.3 2.562.82
40
91.0
92.5 93.6
SER3018H-472KE
4.7 2.562.82
30
59.0
61.2 62.4
SER3018H-682KE
6.8 2.562.82
25
42.0
45.0 45.9
SER3018H-103KE
10
2.562.82
20
28.0
31.2 32.1
SER3018H-153KE
15
2.562.82
16
18.0
21.2 21.9
SER3018H-223KE
22
2.562.82
15
12.0
14.0 15.0
SER3018H-333KE
33
2.562.82
10
7.0
8.7
9.6
Irms (A)6
20°C rise 40°C rise
20
28
20
28
20
28
20
28
20
28
20
28
20
28
1. When ordering, please specify termination code:
SER3018H-333KE
Termination:E=Halogen free component. RoHS compliant matte tin over nickel over phos bronz.
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
2. Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
3. DCR measured on a Keithley 580 micro-ohmmeter or equivalent.
4. SRF measured using an Agilent/HP 4395A network analyzer and an Agilent/HP 16193A test fixture.
5. DC current at 25°C that causes the specified inductance drop from its 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 874-1 Revised 09/10/15
Document 874-2
Shielded Power Inductors – SER3018H Series
Dimensions are in inches
mm
Temperature Rise vs Current
Temperature rise (from 25°C)
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
Current (A rms)
Document 874-2 Revised 09/10/15
Document 874-3
Shielded Power Inductors – SER3018H Series
L vs Frequency
L vs Current
100
100
33 µH
22 µH
Inductance (µH)
Inductance (µH)
33 µH
15 µH
10 µH
10
6.8 µH
4.7 µH
22 µH
10
15 µH
10 µH
6.8 µH
4.7 µH
3.3 µH
1
3.3 µH
1
0.1
1
Current (A)
10
100
0.1
0.1
1
10
Frequency (MHz)
100
ESR vs Frequency
10 µH
4.7 µH
3.3 µH
20
6.8 µH
30
15 µH
33 µH
40
22 µH
Equivalent Series Resistance (Ohms)
50
10
0
0.1
1
10
Frequency (MHz)
Document 874-3 Revised 09/10/15