Document 280-1
SMT Power Inductors - SPT Series
The SPT Series is designed for exceptionally high
currenthandlinginalowprofile surfacemountpart. The
self-leaded design ensures rugged reliability and the
toroidwindingvirtuallyeliminatesstrayelectromagnetic
emissions.
There are two versions: the standard series with current
ratingsupto8Amps, andthehighcurrentseriesthatcan
handle up to 13.9 Amps. All are rated for operation from
−40 to +130° C and the materials meet UL 94V-0 rating.
In addition to the standard values shown, Coilcraft can
custom engineer parts for specific applications. For free
evaluation samples, contact Coilcraft or request them
on the web at www.coilcraft.com.
1
L (0A)2
±20% (µH)
L2typ3 DCR max 3SRF typ4 IDC Body
Part number1
(µH)
(m⏲)
(MHz)
(A)
size
1. When ordering, please specify packaging code:
Standard series
SPT20L-112MX_
SPT38L-382MX_
SPT30L-522MX_
SPT20L-702MX_
SPT20L-112MX_
1.1
3.8
5.2
7.0
1.01
16.0
9.3
19.9
95.0
360
133
60
3.4
8.0
4.8
1.4
1
3
2
1
Packagingcode:
C= 13” machine-readyreel
2.5
3.8
6.2
EIA RS-481 plastic tape.
70
Body size 1:
600 per full reel.
Body sizes 2–3: 350 per full reel.
Body sizes 4–8: 300 per full reel.
SPT38L-752MX_
SPT44L-792MX_
SPT30L-123MX_
SPT44L-143MX_
SPT50L-163MX_
7.5
7.9
12
14
16
5.1
4.9
9.4
9.0
9.3
18.7
16.2
47.2
23.6
19.7
73
49
33
20
19
5.4
7.8
2.8
5.5
7.2
3
4
2
4
5
For packaging data see Tape and Reel
Specifications.
B= Less than full reel
Not machine ready. May be on multiple
reels. To have a leader and a trailer
added ($25 charge), use code letter C
instead.
SPT38L-223MX_
SPT20L-233MX_
SPT50L-263MX_
SPT30L-353MX_
SPT44L-413MX_
22
23
26
35
41
16.2
17.6
16.1
29.7
29.1
63
320
32
166
85
34
21
9.2
12.0
9.5
2.7
1.0
5.1
1.4
2.7
3
1
5
2
4
2. Inductance tested at 100 kHz, 0.1 Vrms on
Agilent/HP4192A.
3. Inductance with IDC current applied tested at
100 kHz, 0.1 Vrms on Agilent/HP4284A.
4. SRF measured on Agilent/HP8753ES network
analyzer.
SPT38L-733MX_
SPT50L-733MX_
SPT30L-174MX_
SPT38L-294MX_
SPT38L-674MX_
73
73
170
290
670
58.1
50
114
192
383
290
133
640
657
1200
5.0
14.0
3.3
2.3
1.2
1.3
2.6
0.94
0.90
0.72
3
5
2
3
3
5. Operating temperature range −40° C to +130° C.
6. Electrical specifications at 25° C.
SPT44L-115MX_
SPT50L-205MX_
1100
2000
670
1070
1908
1932
0.73
0.40
0.70
0.71
4
5
High current series
SPT44H-282MX_
SPT44H-422MX_
SPT50H-652MX_
SPT50H-842MX_
2.8
4.2
6.5
8.4
1.68
4.6
6.6
7.2
8.5
136
72
46
13.9
11.4
12.4
10.4
6
6
7
7
2.5
3.5
4.7
23
SPT68H-113MX_
SPT68H-183MX_
11
18
6.5
10.0
8.2
12.5
20
9
14.0
10.0
8
8
Specifications subject to change without notice. Document 280-1 Revised 4/25/02