SMD Power Inductors [SLF Series]
YAGEO CORPORATION INDUCTORS / BEADS
SLF Series SMD Power Inductors
APPLICATIONS
Portable telephones, computers, hard disk drives and other electronic equipment.
OUTLINE
SLF series is designed for low prole type with low Rdc and large current.
Its magnetic shielded type is suitable for high-density mounting and at bottom surface allows for
reliable mounting onto the board.
Soldering conditions can be easily conrmed when mounting onto the board.
This series also provides customers with embossed carrier type packaging for automatic mounting
machines.
FEATURES
Low Resistance and High Currents
PRODUCT IDENTIFICATION
SLF ☐☐☐☐ ☐
-
☐☐☐ ☐
-
☐
Internal No.
Tolerance
Inductance
Packaging Style
Dimensions
Product Symbol
■ Packaging: T = Tape and Reel
■ Internal No.: N = Lead-Free
138
SHAPES AND DIMENSIONS Unit: mm
TYPE FIGURE A B C D E F
SLF0628 16 ± 0.2 6 ± 0.2 2.8 ± 0.2 3.0 typ 2 ± 0.1 1.5 typ
SLF0728 17 ± 0.2 7 ± 0.2 2.8 ± 0.2 4.9 typ 2.0 typ 0.9 typ
SLF0730 17 ± 0.2 7 ± 0.2 3.0 ± 0.2 4.9 typ 2.0 typ 0.9 typ
SLF0732 17 ± 0.2 7 ± 0.2 3.2 ± 0.2 4.9 typ 2.0 typ 0.9 typ
SLF0745 17 ± 0.2 7 ± 0.2 4.5 ± 0.3 4.9 typ 2.0 typ 0.9 typ
SLF1045 210.1 ± 0.3 10.1 ± 0.3 4.5 ± 0.3 6.0 typ 3.0 typ 2.0 typ
SLF1055 210.1 ± 0.3 10.1 ± 0.3 5.5 ± 0.3 6.0 typ 3.0 typ 2.0 typ
SLF1255 312.5 ± 0.3 12.5 ± 0.3 5.5 ± 0.3 8.6 typ 3.0 typ 2.0 typ
SLF1265 312.5 ± 0.3 12.5 ± 0.3 6.5 ± 0.35 8.6 typ 3.0 typ 2.0 typ
SLF1275 312.5 ± 0.3 12.5 ± 0.3 7.5 ± 0.35 8.6 typ 3.0 typ 2.0 typ
Figure 1 Figure 2 Figure 3
A
E
C
D
F
B
Winding Start Mark
XXX
Marking
(Inductance Code)
D F
E
A
XXX
Epoxy
Epoxy
C
B
Epoxy
ED
F
XXX
Epoxy
B
A
Epoxy
C
139
ELECTRICAL CHARACTERISTICS SLF0628
PART NO. INDUCTANCE TOLERANCE TEST DC RATED ITEMP
(µH) (±%) FREQUENCY RESISTANCE CURRENT (A) Max.
(KHz) (Ω) ±20% (A) Max.
SLF0628T-4R7M-N 4.7 20 1 0.0284 1.60 2.50
SLF0628T-6R8M-N 6.8 20 1 0.0354 1.50 2.20
SLF0628T-100M-N 10 20 1 0.0532 1.30 1.80
SLF0628T-150M-N 15 20 1 0.0745 1.00 1.40
SLF0628T-220M-N 22 20 1 0.104 0.77 1.30
SLF0628T-330M-N 33 20 1 0.148 0.69 1.10
SLF0628T-470M-N 47 20 1 0.210 0.59 0.92
SLF0628T-680M-N 68 20 1 0.290 0.50 0.78
SLF0628T-101M-N 100 20 1 0.430 0.42 0.64
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 30%.
Itemp Current: Value obtained when current ows and the temperature has risen to 25 °C.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
ELECTRICAL CHARACTERISTICS SLF0728
PART NO. INDUCTANCE TOLERANCE TEST DC RATED
(µH) (±%) FREQUENCY RESISTANCE CURRENT
(KHz) (Ω) ±20% (A) Max.
SLF0728T-3R3M-N 3.3 20 1 0.037 1.60
SLF0728T-4R7M-N 4.7 20 1 0.045 1.50
SLF0728T-6R8M-N 6.8 20 1 0.059 1.30
SLF0728T-100M-N 10 20 1 0.083 1.10
SLF0728T-150M-N 15 20 1 0.130 0.88
SLF0728T-220M-N 22 20 1 0.180 0.75
SLF0728T-330M-N 33 20 1 0.240 0.65
SLF0728T-470M-N 47 20 1 0.340 0.54
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
140
ELECTRICAL CHARACTERISTICS SLF0730
PART NO. INDUCTANCE TOLERANCE TEST DC RATED
(µH) (±%) FREQUENCY RESISTANCE CURRENT
(KHz) (Ω) ±20% (A) Max.
SLF0730T-3R3M-N 3.3 20 1 0.023 1.80
SLF0730T-4R7M-N 4.7 20 1 0.036 1.60
SLF0730T-6R8M-N 6.8 20 1 0.041 1.50
SLF0730T-100M-N 10 20 1 0.053 1.30
SLF0730T-150M-N 15 20 1 0.084 1.00
SLF0730T-220M-N 22 20 1 0.110 0.86
SLF0730T-330M-N 33 20 1 0.160 0.65
SLF0730T-470M-N 47 20 1 0.240 0.57
SLF0730T-680M-N 68 20 1 0.310 0.49
SLF0730T-101M-N 100 20 1 0.450 0.35
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
ELECTRICAL CHARACTERISTICS SLF0732
PART NO. INDUCTANCE TOLERANCE TEST DC RATED
(µH) (±%) FREQUENCY RESISTANCE CURRENT
(KHz) (Ω) ±20% (A) Max.
SLF0732T-2R2M-N 2.2 20 1 0.018 2.10
SLF0732T-3R3M-N 3.3 20 1 0.023 1.90
SLF0732T-4R7M-N 4.7 20 1 0.036 1.70
SLF0732T-6R8M-N 6.8 20 1 0.041 1.60
SLF0732T-100M-N 10 20 1 0.053 1.40
SLF0732T-150M-N 15 20 1 0.075 1.10
SLF0732T-220M-N 22 20 1 0.11 0.96
SLF0732T-330M-N 33 20 1 0.16 0.75
SLF0732T-470M-N 47 20 1 0.24 0.67
SLF0732T-680M-N 68 20 1 0.31 0.59
SLF0732T-101M-N 100 20 1 0.45 0.45
SLF0732T-151M-N 150 20 1 0.65 0.37
SLF0732T-221M-N 220 20 1 1.05 0.29
SLF0732T-331M-N 330 20 1 1.67 0.22
SLF0732T-471M-N 470 20 1 2.05 0.20
SLF0732T-681M-N 680 20 1 3.15 0.16
SLF0732T-102M-N 1000 20 1 4.78 0.13
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
141
ELECTRICAL CHARACTERISTICS SLF0745
PART NO. INDUCTANCE TOLERANCE TEST DC RATED ITEMP
(µH) (±%) FREQUENCY RESISTANCE CURRENT (A) Max.
(KHz) (Ω) ±20% (A) Max.
SLF0745T-3R3M-N 3.3 20 1 0.02 2.50 2.30
SLF0745T-4R7M-N 4.7 20 1 0.03 2.00 2.10
SLF0745T-6R8M-N 6.8 20 1 0.039 1.70 1.74
SLF0745T-100M-N 10 20 1 0.036 1.30 1.78
SLF0745T-150M-N 15 20 1 0.052 1.10 1.53
SLF0745T-220M-N 22 20 1 0.061 0.90 1.34
SLF0745T-330M-N 33 20 1 0.096 0.82 1.09
SLF0745T-470M-N 47 20 1 0.125 0.75 0.92
SLF0745T-680M-N 68 20 1 0.175 0.60 0.77
SLF0745T-101M-N 100 20 1 0.25 0.50 0.65
SLF0745T-151M-N 150 20 1 0.34 0.40 0.55
SLF0745T-221M-N 220 20 1 0.52 0.33 0.45
SLF0745T-331M-N 330 20 1 0.74 0.25 0.37
SLF0745T-471M-N 470 20 1 1.05 0.22 0.31
SLF0745T-681M-N 680 20 1 1.48 0.20 0.27
SLF0745T-102M-N 1000 20 1 2.28 0.14 0.25
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Itemp Current: Value obtained when current ows and the temperature has risen to 20 °C.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
ELECTRICAL CHARACTERISTICS SLF1045
PART NO. INDUCTANCE TOLERANCE TEST DC RATED ITEMP
(µH) (±%) FREQUENCY RESISTANCE CURRENT (A) Max.
(KHz) (Ω) ±20% (A) Max.
SLF1045T-100M-N 10 20 1 0.0364 3.00 2.50
SLF1045T-150M-N 15 20 1 0.0472 2.40 2.20
SLF1045T-220M-N 22 20 1 0.0591 2.10 1.90
SLF1045T-330M-N 33 20 1 0.0815 1.60 1.70
SLF1045T-470M-N 47 20 1 0.10 1.40 1.50
SLF1045T-680M-N 68 20 1 0.14 1.20 1.30
SLF1045T-101M-N 100 20 1 0.20 1.00 1.10
SLF1045T-151M-N 150 20 1 0.35 0.79 0.81
SLF1045T-221M-N 220 20 1 0.47 0.65 0.70
SLF1045T-331M-N 330 20 1 0.68 0.54 0.58
SLF1045T-471M-N 470 20 1 1.03 0.47 0.47
SLF1045T-681M-N 680 20 1 1.60 0.38 0.38
SLF1045T-102M-N 1000 20 1 2.80 0.32 0.29
SLF1045T-152M-N 1500 20 1 3.40 0.22 0.26
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Itemp Current: Value obtained when current ows and the temperature has risen to 30 °C.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
142
ELECTRICAL CHARACTERISTICS SLF1055
PART NO. INDUCTANCE TOLERANCE TEST DC RATED
(µH) (±%) FREQUENCY RESISTANCE CURRENT
(KHz) (Ω) ±20% (A) Max.
SLF1055T-100M-N 10 20 1 40 3.5
SLF1055T-330M-N 33 20 1 85 2.1
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 15%.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
ELECTRICAL CHARACTERISTICS SLF1255
PART NO. INDUCTANCE TOLERANCE TEST DC RATED ITEMP
(µH) (±%) FREQUENCY RESISTANCE CURRENT (A) Max.
(KHz) (Ω) ±20% (A) Max.
SLF1255T-6R0M-N 6 20 1 0.0164 3.60 4.90
SLF1255T-100M-N 10 20 1 0.0215 3.40 4.30
SLF1255T-150M-N 15 20 1 0.0259 2.80 3.90
SLF1255T-220M-N 22 20 1 0.0338 2.30 3.40
SLF1255T-330M-N 33 20 1 0.0415 1.90 3.10
SLF1255T-470M-N 47 20 1 0.0618 1.60 2.50
SLF1255T-680M-N 68 20 1 0.0832 1.30 2.20
SLF1255T-101M-N 100 20 1 0.117 1.10 1.80
SLF1255T-151M-N 150 20 1 0.190 0.88 1.40
SLF1255T-221M-N 220 20 1 0.270 0.72 1.20
SLF1255T-331M-N 330 20 1 0.410 0.59 1.00
SLF1255T-471M-N 470 20 1 0.520 0.49 0.88
SLF1255T-681M-N 680 20 1 0.760 0.43 0.73
SLF1255T-102M-N 1000 20 1 1.120 0.34 0.60
SLF1255T-152M-N 1500 20 1 1.730 0.29 0.48
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Itemp Current: Value obtained when current ows and the temperature has risen to 30 °C.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
143
ELECTRICAL CHARACTERISTICS SLF1265
PART NO. INDUCTANCE TOLERANCE TEST DC RATED ITEMP
(µH) (±%) FREQUENCY RESISTANCE CURRENT (A) Max.
(KHz) (Ω) ±20% (A) Max.
SLF1265T-2R0T-N 2.0 30 1 0.0117 10 6.20
SLF1265T-4R2T-N 4.2 30 1 0.0150 7.3 5.50
SLF1265T-7R0T-N 7.0 30 1 0.0177 5.7 5.00
SLF1265T-100M-N 10 20 1 0.0202 5.0 4.80
SLF1265T-150M-N 15 20 1 0.0237 4.2 4.40
SLF1265T-220M-N 22 20 1 0.0316 3.5 3.80
SLF1265T-330M-N 33 20 1 0.0406 2.8 3.40
SLF1265T-470M-N 47 20 1 0.0578 2.4 2.80
SLF1265T-680M-N 68 20 1 0.0787 2.0 2.40
SLF1265T-101M-N 100 20 1 0.1230 1.6 1.90
SLF1265T-221M-N 220 20 1 0.2730 1.0 1.20
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Itemp Current: Value obtained when current ows and the temperature has risen to 40 °C.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
ELECTRICAL CHARACTERISTICS SLF1275
PART NO. INDUCTANCE TOLERANCE TEST DC RATED ITEMP
(µH) (±%) FREQUENCY RESISTANCE CURRENT (A) Max.
(KHz) (Ω) ±20% (A) Max.
SLF1275T-1R2T-N 1.2 30 1 0.0069 13 8.20
SLF1275T-2R7T-N 2.7 30 1 0.0094 10 7.00
SLF1275T-3R9T-N 3.9 30 1 0.0104 9.0 6.70
SLF1275T-5R6T-N 5.6 30 1 0.0116 7.8 6.30
SLF1275T-6R8T-N 6.8 30 1 0.0131 7.2 5.90
SLF1275T-100M-N 10 20 1 0.0156 5.5 5.40
SLF1275T-150M-N 15 20 1 0.0184 4.7 5.00
SLF1275T-220M-N 22 20 1 0.0263 4.0 4.00
SLF1275T-330M-N 33 20 1 0.0395 3.2 3.40
SLF1275T-470M-N 47 20 1 0.0528 2.7 3.00
SLF1275T-680M-N 68 20 1 0.0778 2.0 2.40
SLF1275T-101M-N 100 20 1 0.1250 1.9 1.90
SLF1275T-151M-N 150 20 1 0.1750 1.5 1.60
SLF1275T-221M-N 220 20 1 0.2580 1.3 1.30
Note:
Rated Current: Value obtained when DC current ows and the initial value of inductance has fallen by 10%.
Itemp Current: Value obtained when current ows and the temperature has risen to 40 °C.
Test Equipment Inductance: HP4192A LF Impedance analyzer or equivalent (Test frequency: 1KHz/0.5V)
RDC: CH502BC
144 YAGEO CORPORATION INDUCTORS / BEADS
Dimensions: mm
Carrier Tape: Polystyrene
TAPE MATERIAL
TYPE TAPE RECOMMENDED REEL QUANTITY/
DIMENSIONS PATTERN DIMENSIONS REEL
K0 D E W P P0 P2 A B C D A B C D
SLF0628 3.40 1.55 1.75 16 12 4 2 2.20 1.50 4.00 1.50 330 100 13 17.4 1,000
SLF0728 3.20 1.55 1.75 16 12 4 2 2.20 1.50 4.90 1.50 330 100 13 17.4 1,000
SLF0730 3.50 1.55 1.75 16 12 4 2 2.20 1.50 4.90 1.50 330 100 13 17.4 1,000
SLF0732 3.50 1.55 1.75 16 12 4 2 2.20 1.50 4.90 1.50 330 100 13 17.4 1,000
SLF0745 4.80 1.55 1.75 16 12 4 2 2.20 1.50 4.90 1.50 330 100 13 17.4 1,000
SLF1045 5.00 1.55 1.75 24 16 4 2 3.20 2.50 5.60 2.50 330 100 13 24.4 500
SLF1055 5.00 1.55 1.75 24 16 4 2 3.20 2.50 5.60 2.50 330 100 13 24.4 500
SLF1255 6.00 1.55 1.75 24 16 4 2 3.20 2.50 5.60 2.50 330 100 13 24.4 500
SLF1265 7.00 1.55 1.75 24 16 4 2 3.20 2.50 8.60 2.50 330 100 13 24.4 500
SLF1275 8.20 1.55 1.75 24 16 4 2 3.20 2.50 8.60 2.50 330 100 13 24.4 350
Carrier Tape: Polystyrene
160mm Min.
Blank Part
Cover Tape
Chip Mounting
Part
Blank
330mm Min.
Leader
TAPE DIMENSIONS
REEL DIMENSIONS RECOMMENDED PATTERN
W
P0
P
P2 K0
E
D
CB A
D
A
C
B
D