SER1052

Document 535 -1
Shielded Power Inductors – SER1052
• High current, low DCR shielded power inductors
• 10.2 × 11 mm base; only 5.2 mm tall
Designer’s Kit C421 contains 3 of each value
Core and winding loss See www.coilcraft.com/coreloss
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over phos
bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3).
Other terminations available at additional cost.
Weight 1.6 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 200/7″ reel; 700/13″ reel Plastic tape: 24 mm wide,
0.4 mm thick, 16 mm pocket spacing, 5.45 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Isat (A)5 Irms(A)6
Inductance DCR SRF
±20%2 max3 typ410% 20% 30% 20°C40°C
Part number1
(µH) (mOhm)(MHz) drop drop drop rise rise
SER1052-801ML_
SER1052-102ML_
SER1052-122ML_
SER1052-132ML_
SER1052-152ML_
SER1052-182ML_
SER1052-202ML_
SER1052-222ML_
SER1052-252ML_
SER1052-322ML_
SER1052-402ML_
SER1052-432ML_
SER1052-572ML_
0.80
1.0
1.2
1.3
1.5
1.8
2.0
2.2
2.5
3.2
4.0
4.3
5.7
4.0 100 24.9 25.2 25.6 12.516.3
4.0
95 16.5 17.0 17.5 12.516.3
6.0
91 20.5 21.0 21.3 11.015.0
4.0
81 12.9 16.8 17.2 12.516.3
4.0
75 13.5 14.0 14.5 11.015.0
6.0
70 13.3 13.8 14.3 11.015.0
9.0
65 15.3 15.8 16.2 8.511.5
4.0
58
8.9 9.6 10.0 12.516.3
7.5
55 11.4 11.8 12.1 9.012.0
6.0
53
7.3 7.8 8.5 11.015.0
9.0
47
8.3 8.5 8.8 8.511.5
7.5
44
6.4 6.8 7.0 9.012.0
9.0
35
5.4 5.8 6.0 8.511.5
1. Please specify termination and packaging codes:
SER1052-572MLD
Termination:L=RoHS compliant tin-silver over copper
(pins 1 and 2); matte tin over nickel over
phos bronze (pin 3).
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 (200 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 (700 parts per full reel)
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an
Agilent/HP 4284A or equivalent.
3. DCR measured on a micro-ohmmeter.
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 535-1 Revised 09/09/15
Document 535-2
Shielded Power Inductors - SER1052 Series
Typical L vs Frequency
Typical L vs Current
7
7
5.7 µH
5
4
3.2 µH
3
2.0 µH
2
5.7 µH
6
Inductance (µH)
Inductance (µH)
6
5
4
3.2 µH
3
2.0 µH
2
1.3 µH
1.3 µH
1
1
0.8 µH
0.8 µH
0
0.1
1
10
100
Frequency (MHz)
0
0.1
1
Current (A)
10
100
Prior to 2012, parts may have
been marked differently
SER1052-XXXL
XXXXY
0.433 ±0.008
11,0 ±0,20
1
2
0.402 ±0.008
10,2 ±0,20
3
Terminal 3 is
for mounting
stability only.
Internal
code
0.205
max
5,20
0.069
1,75
0.28
7,1
0.079
2,00
0.087
2,20
0.152
3,85
1
0.087
2,20
0.118
3,00
0.087
2,20
Dimensions are in
Recommended
Land Pattern
inches
mm
0.091
2,30
0.118 0.125
3,00 3,18
3
0.215
5,47
0.134
3,40
2
Document 535-2 Revised 09/09/15