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
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
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
Tray 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.
Part number
1
SER3018H-332KE
SER3018H-472KE
SER3018H-682KE
SER3018H-103KE
SER3018H-153KE
SER3018H-223KE
SER3018H-333KE
Inductance
2
±10% (µH)
3.3
4.7
6.8
10
15
22
33
DCR (mOhms)
3
nom
max
2.56
2.82
2.56
2.82
2.56
2.82
2.56
2.82
2.56
2.82
2.56
2.82
2.56
2.82
SRF typ
4
(MHz)
40
30
25
20
16
15
10
10% drop
91.0
59.0
42.0
28.0
18.0
12.0
7.0
Isat
(A)
5
20% drop
92.5
61.2
45.0
31.2
21.2
14.0
8.7
30% drop
93.6
62.4
45.9
32.1
21.9
15.0
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 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.
Document 874-1
Revised 11/24/14
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