Document 280-1
Toroid Power Inductors – SPT Series
• Toroid winding eliminates stray electromagnetic emissions
• Two versions: Standard, current ratings up to 8 Amps; High
current, with ratings up to 12.2 Amp
Core material Powered iron
Core and winding loss See www.coilcraft.com/coreloss
Terminations RoHS compliant tin-silver over copper. Other
terminations available at additional cost.
Ambient temperature –40°C to +85°C
Maximum part temperature: The part temperature should not
exceed +85°C (ambient + self-heating). Prolonged operation above
+85°C may result in a permanent increase in core loss and part failure
due to thermal aging of the core material.
Storage temperature Component: –40°C to +85°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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Isat (A)4
±20 320 Body
drop drop size
1. When ordering, specify termination and packaging codes:
L2
DCR
max
SRF
typ3
±±20
(µH)
120
drop
SPT±2L-11±MLD
Part number1
(mOhm)
(MHz)
Termination:L = RoHS compliant tin-silver over copper.
Special order:
Standard series
SPT20L-112ML_
SPT38L-382ML_
SPT30L-522ML_
SPT20L-702ML_
SPT38L-752ML_
SPT44L-792ML_
SPT30L-123ML_
SPT44L-143ML_
SPT50L-163ML_
SPT38L-223ML_
SPT20L-233ML_
SPT50L-263ML_
SPT30L-353ML_
SPT44L-413ML_
T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
1.1
3.8
5.2
7.0
7.5
7.9
12
14
16
22
23
26
35
41
16.0
9.3
24.2
95.0
22.8
16.2
54.7
23.6
19.7
63
320
32
130
61
47
37
50
3.2
4.0
2.8
1.2
2.7
3.5
1.9
2.8
2.8
1.5
0.6
2.3
1.1
1.6
4.8
6.1
4.2
1.8
4.2
5.4
2.8
4.1
4.2
2.3
1.0
3.4
1.6
2.3
6.7
8.2
5.8
2.5
5.8
7.3
3.7
5.7
5.8
3.1
1.3
4.6
2.2
3.1
1
3
2
1
3
4
2
4
5
3
1
5
2
4
Packaging: D= 13″ machine-ready reel
EIA-481 embossed plastic tape.
Body size 1:
750 per full reel.
Body sizes 2–3: 350 per full reel.
Body size 4: 300 per full reel.
26
Body sizes 5–6: 250 per full reel.
Body sizes 7–8: 200 per full reel.
23.9
15.6
14.3
18.1
13.5
11.2
11.0
8.30
B= Less than full reel
In tape, but not machine ready. To have
a leader and trailer added ($25 charge),
use code letter D instead.
2. Inductance tested at 100 kHz, 0.1 Vrms on Agilent/
HP 4192A.
3. SRF measured on Agilent/HP 8753ES network analyzer.
4. DC current that causes the specified inductance drop
from its value without current.
166
85
SPT38L-733ML_
SPT50L-733ML_
SPT30L-174ML_
SPT38L-294ML_
SPT50L-564ML_
73
73
170
290
560
290
133
640
657
550
10.8
4.56
3.84
2.87
1.54
0.81
1.4
0.44
0.41
0.37
1.3
2.0
0.68
0.64
0.59
1.7
2.7
0.95
0.90
0.81
3
5
2
3
5
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before
soldering.
SPT38L-674ML_
SPT44L-115ML_
SPT50L-205ML_
670
1100
2000
1200
1908
1932
1.38
1.35
1.35
0.26
0.25
0.18
0.40
0.41
0.29
0.55
0.57
0.41
3
4
5
High current series
SPT44H-282ML_
SPT44H-422ML_
SPT50H-652ML_
SPT50H-842ML_
2.8
4.2
6.5
8.4
4.6
6.6
7.2
8.5
74
61
27.3
22.8
5.8
5.0
4.6
4.3
8.8
7.8
6.7
6.4
12.2
10.9
9.1
6
6
7
7
8.5
SPT68H-113ML_
SPT68H-183ML_
11
18
8.2
12.5
25.9
12.0
4.8
3.9
7.2
5.7
9.9
7.7
8
8
Document 280-1 Revised 12/09/10
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© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.