• All specifications are subject to change without notice.
(1/2)
001-01 / 20030806 / e531_slf12575.fm
Inductors SLF Series SLF12575 Type
For Power Line
SMD
FEATURES
• The SLF series are characterized by low profile, low DC
resistance, and high current handling capacities.
• Because they are magnetically shielded, these parts can be
used in high-density mounting configurations.
• Flat bottom surface ensures secure, reliable mounting.
• Provided in embossed carrier tape packaging for use with
automatic mounting machines.
APPLICATIONS
Portable telephones, personal computers, hard disk drives, and
other electronic equipment.
SPECIFICATIONS
RECOMMENDED REFLOW SOLDERING CONDITIONS
PRODUCT IDENTIFICATION
(1) Series name
(2) Dimensions L×W×T
(3) Packaging style
(4) Inductance value
(5) Inductance tolerance
(6) Rated current
(7) TDK internal code
(Some products may not have this number. See the main body
for details.)
PACKAGING STYLE AND QUANTITIES
Operating temperature range –20 to +105°C
[Including self-temperature rise]
Storage temperature range –40 to +105°C[Unit of products]
40s
60 to 120s
Preheating
5s
Natural
cooling
240±5˚C
220±5˚C
150˚C
130˚C
Time(s)
SLF 12575 T- 220 M 3R2 -2
(1) (2) (3) (4) (5) (6) (7)
12575 12.5×12.5×7.5mm
T Taping(reel)
3R3 3.3µH
100 10µH
M ±20%
N ±30%
1R9 1.9A
3R2 3.2A
Packaging style Quantity
Taping 500 pieces/reel
• All specifications are subject to change without notice.
(2/2)
001-01 / 20030806 / e531_slf12575.fm
Inductors SLF Series SLF12575 Type
For Power Line
SMD
SHAPES AND DIMENSIONS/RECOMMENDED PC BOARD PATTERN
ELECTRICAL CHARACTERISTICS
∗Rated current: Value obtained when current flows and the temperature has risen to 40°C or when DC current flows and the initial value of inductance has
fallen by 10%, whichever is smaller.
• Test equipment L:YHP 4194A IMPEDANCE GAIN/PHASE ANALYZER, or equivalent (Measured at 1kHz/0.5V)
Rdc:MATSUSHITA VP-2941A DIGITAL MILLIOHM METER, or equivalent
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE CHANGE vs. DC SUPERPOSITION
CHARACTERISTICS
Inductance
(µH)
Inductance
tolerance (%)
Test frequency
L (kHz)
DC resistance
(Ω)±20%
Rated current (A)∗ max.
Part No.
Based on
inductance change
Based on
temperature rise
1.2 ±30 1 0.0069 13 8.2 SLF12575T-1R2N8R2
2.7 ±30 1 0.0094 10 7 SLF12575T-2R7N7R0
3.9 ±30 1 0.0104 9 6.7 SLF12575T-3R9N6R7
5.6 ±30 1 0.0116 7.8 6.3 SLF12575T-5R6N6R3
6.8 ±30 1 0.0131 7.2 5.9 SLF12575T-6R8N5R9
10 ±20 1 0.0156 5.5 5.4 SLF12575T-100M5R4
15 ±20 1 0.0184 4.7 5 SLF12575T-150M4R7
22 ±20 1 0.0263 4 4 SLF12575T-220M4R0
33 ±20 1 0.0395 3.2 3.4 SLF12575T-330M3R2
47 ±20 1 0.0528 2.7 3 SLF12575T-470M2R7
68 ±20 1 0.0778 2 2.4 SLF12575T-680M2R0
100 ±20 1 0.125 1.9 1.9 SLF12575T-101M1R9
150 ±20 1 0.175 1.5 1.6 SLF12575T-151M1R5
220 ±20 1 0.258 1.3 1.3 SLF12575T-221M1R3
12.5±0.3
12.5±0.3
Winding start mark
Marking
(Inductance code)3±0.1
8.6±0.32±0.15
Weight: 3.3g
Dimensions in mm
7.5±0.35
0.1typ.
330
8.6 2.52.5
3.2
DC current(A)
0.01
3
1
100
1000
300
30
10
10000
3000
0.1 0.30.03 3110
Inductance(µH)
6.8µH
22µH
47µH
100µH
10µH
A
L=0.1H C=20000µF
Specimen
Test circuit
YHP model-4275A or equivalent
DC
Universal
bridge
