SW Series • Inductors for National's 150kHz Simple Switcher
TM
SW Series low cost
toroidal inductors, designed for use with
National Semiconductor's 150kHz Simple Switcher
TM
Part
Numbers LM259X-L1 through LM259X-L44 and LM258X-L
Features
• High energy storage with minimum saturation
• High stability from no load to full load
• Available in both SMD and TH versions
• Manufactured in ISO-9001 approved facility
• Operating temperature range: -40°C to +125°C
AMGIS
Date Code
SWS-xxx-xx
AMGIS
Date Code
SWT-xxx-xx
Electrical Specifications at 25°C ambient
Part Number
SW_-0.13-259
SW_-0.16-178
SW_-0.20-118
SW_-0.25-79
SW_-0.30-55
SW_-0.34-39
SW_--0.45-26
SW_-0.20-374
SW_-0.25-256
SW_-0.30-176
SW_-0.38-118
SW_-0.46-78
SW_-0.56-55
SW_-0.68-39
SW_-0.84-26
SW_-1.02-17
SW_-0.36-375
SW_-0.44-252
SW_-0.54-173
SW_-0.67-115
SW_-0.82-78
SW_-1.0-54
SW_-1.2-38
SW_-1.48-26
SW_-1.81-18
SW_-0.68-377
SW_-0.83-248
SW_-1.02-168
SW_-1.26-112
SW_-1.54-77
SW_-1.87-53
SW_-2.24-37
SW_-2.74-24
SW_-3.00-17
SW_-1.5-250
SW_-1.81-168
National
Part
Number
LM-259X-L1
LM-259X-L2
LM-259X-L3
LM-259X-L4
LM-259X-L5
LM-259X-L6
LM-259X-L7
LM-259X-L8
LM-259X-L9
LM-259X-L10
LM-259X-L11
LM-259X-L12
LM-259X-L13
LM-259X-L14
LM-259X-L15
LM-259X-L16
LM-259X-L17
LM-259X-L18
LM-259X-L19
LM-259X-L20
LM-259X-L21
LM-259X-L22
LM-259X-L23
LM-259X-L24
LM-259X-L25
LM-259X-L26
LM-259X-L27
LM-259X-L28
LM-259X-L29
LM-259X-L30
LM-259X-L31
LM-259X-L32
LM-259X-L33
LM-259X-L34
LM-259X-L35
LM-259X-L36
Rated
Current
(i
DC
)
0.13
0.16
0.20
0.25
0.30
0.34
0.45
0.20
0.25
0.30
0.38
0.46
0.56
0.68
0.84
1.02
0.36
0.44
0.54
0.67
0.82
1.00
1.20
1.48
1.81
0.68
0.83
1.02
1.26
1.54
1.87
2.24
2.74
3.00
1.50
1.81
L
N
(µH)
± 20%
259
178
118
79
55
39
26
374
256
176
118
78
55
39
26
17
375
252
173
115
78
54
38
26
18
377
248
168
112
77
53
37
24
17
250
168
ET
OP
(V-µSec)
Max.
23.1
16.5
13.2
9.9
6.6
6.6
6.6
75.9
33.0
26.4
19.8
16.5
13.2
9.9
6.6
6.6
75.9
49.5
36.3
29.7
23.1
16.5
13.2
9.9
9.9
75.9
72.6
56.1
42.9
33.0
26.4
19.8
16.5
13.2
72.6
75.9
DCR
(Ohms)
3.40
2.80
1.80
1.50
1.00
0.80
0.62
2.70
2.20
1.40
1.20
0.80
0.50
0.30
0.20
0.10
1.30
0.90
0.60
0.40
0.30
0.20
0.10
0.10
0.06
1.00
0.60
0.40
0.30
0.20
0.13
0.10
0.07
0.05
0.23
0.18
Energy
Storage
(µJ)
2
2
2
2
2
2
3
7
8
8
9
8
9
9
9
9
24
24
25
26
26
27
27
28
29
87
85
87
89
91
93
93
90
77
281
275
S4
S6
C1 - T4
C3
S4
T4
S3
T3
S2
T2
S1
T1
P ackag e
"S"
" C " & " T"
AMGIS, LLC * 10830 Kinghurst Dr. Houston, TX 77099
Phone: 832-775-1319 * Fax: 281-933-9067* email:
sales@amgistoroids.com
Toll Free: 877-762-6447 *
www.amgistoroids.com
SW Series • Toroidal Inductors for National's 150kHz Simple Switcher
TM
Electrical Specifications at 25°C
Part Number
S W_-2.22-114
S W_-2.70-77
S W_-3.00-53
S W_-3.00-38
S W_-3.00-25
S W_-2.50-167
S W_-3.00-110
S W_-3.00-77
S W_-4.50-19
National
Part
Number
LM-259X-L37
LM-259X-L38
LM-259X-L39
LM-259X-L40
LM-259X-L41
LM-259X-L42
LM-259X-L43
LM-259X-L44
LM-258X-L
Rated
Current
(I
DC
)
2.22
2.70
3.00
3.00
3.00
2.50
3.00
3.00
4.50
L
N
(µH)
± 20%
114
77
53
38
25
167
110
77
19
ET
OP
(V-µSec)
Max.
62.7
52.8
42.9
29.7
19.8
75.9
75.9
59.4
32.0*
DCR
(Ohms)
0.10
0.09
0.08
0.05
0.04
0.14
0.09
0.08
0.02
Energy
Storage
(µJ)
281
281
239
171
113
522
495
347
192
P ackag e
"S"
S6
S5
S6
C3
" C " & " T"
C3
T5 - C2
C4
*Note: E T
OP
for P /N S W_-4.50-19 i s based on a frequency of 100kHz. A ll other i tems are rated at 150kHz.
S i mple S wi tcher
TM
i s a trademark of Nati onal S emi conductor C orporati on.
Dimensions
Type SWS - Surface Mount
A
D
Pad Width
S6
S1 - S5
0.079
0.059
(2.00)
(1.50)
E
1
Type SWT -Through Hole Mount
Sizes T1 -T4
Suggested Pad
2
Layout
(Top side View)
E
A D
B
D
Date Code
SWS-xxx-xx
AMGIS
Date Code
SWT-xxx-xx
AMGIS
D
D
E
Suggested Pad
Layout
B
C
0.138
3.50
0.059
(1.50)
0.035
(0.90)
Size T5
Schematic
C
1
B
D
Date Code
SWT-xxx-xx
1
2
AMGIS
Schematic
1
Surface Coplanarity will be <0.005(0.13)
D
2
2
E
A
Type SWC - Clip Mount
Mounting
Style
Siz e
C ode
S1
S2
"S"
SMD
S3
S4
S5
S6
T1
T2
" T"
TH
T3
T4
T5
D imensions - Inches ±0.010 (mm ±0.25)
A
0.339
(8.60)
0.394
(10.0)
0.503
(12.8)
0.591
(15.0)
0.669
(17.0)
0.925
(23.5)
0.339
(8.60)
0.394
(10.0)
0.503
(12.8)
0.591
(15.0)
0.669
(17.0)
B
0.339
(8.60)
0.394
(10.0)
0.503
(12.8)
0.591
(15.0)
0.701
(17.8)
0.925
(23.5)
0.339
(8.60)
0.394
(10.0)
0.503
(12.8)
0.591
(15.0)
0.701
(17.8)
C
0.185
(4.70)
0.256
(6.50)
0.276
(7.00)
0.315
(8.00)
0.390
(9.91)
0.496
(12.6)
0.216
(5.50)
0.287
(7.30)
0.307
(7.80)
0.346
(8.80)
0.422
(10.71)
D
0.268
(6.80)
0.339
(8.60)
0.449
(11.4)
0.508
(12.9)
0.591
(15.0)
0.827
(21.0)
0.250
(6.35)
0.300
(7.62)
0.375
(9.52)
0.500
(12.70)
0.600
(15.24)
E
0.378
(9.60)
0.402
(10.2)
0.512
(13.0)
0.551
(14.0)
0.591
(15.0)
0.689
(17.5)
0.250
(6.35)
0.300
(7.62)
0.375
(9.52)
0.299
(7.62)
0.400
(10.16)
Schematic
1
X
2
Suggested Pad
Layout
1/2
c
C
0.138
(3.50)
E
D
E
0.071
(1.80)
0.047
(1.20)
Mounting
Style
Siz e
C ode
C1
Dimensions - Inches ±0.01 (mm ±0.25)
C
0.580
(14.73)
0.650
(16.5)
0.827
(21.0)
0.949
((24.1)
1.252
(31.8)
D
0.340
(8.64)
0.449
(11.4)
0.449
(11.4)
0.598
(15.2)
0.701
(17.8)
E
0.220
(5.58)
0.299
(7.60)
0.299
(7.60)
0.449
(11.4)
0.500
(12.7)
X = Coil O.D. +
0.110
(2.80)
0.110
(2.80)
0.110
(2.80)
0.110
(2.80)
0.130
(3.30)
"C"
Vertical
Clip
Mount
C2
C3
C4
C5
AMGIS, LLC * 10830 Kinghurst Dr. Houston, TX 77099
Phone: 832-775-1319 * Fax: 281-933-9067* email:
sales@amgistoroids.com
Toll Free: 877-762-6447 *
www.amgistoroids.com
SW Series Cross Reference for National's 150kHz Simple Switcher
TM
Pulse Engineering - AMGIS
Pulse Part Number
THT
PE-53801
PE-53802
PE-53803
PE-53804
PE-53805
PE-53806
PE-53807
PE-53808
PE-53809
PE-53810
PE-53811
PE-53812
PE-53813
PE-53814
PE-53815
PE-53816
PE-53817
PE-53818
PE-53819
PE-53820
PE-53821
PE-53822
PE-53823
PE-53824
PE-53825
PE-53826
PE-53827
PE-53828
PE-53829
PE-53830
PE-53831
PE-53932
PE-53933
PE-53934
PE-53935
PE-54036
PE-54037
PE-54038
PE-54039
PE-54040
PE-54041
PE-54042
PE-54043
PE-54044
PE-53900
SMD
PE-53801S
PE-53802S
PE-53803S
PE-53804S
PE-53805S
PE-53806S
PE-53807S
PE-53808S
PE-53809S
PE-53810S
PE-53811S
PE-53812S
PE-53813S
PE-53814S
PE-53815S
PE-53816S
PE-53817S
PE-53818S
PE-53819S
PE-53820S
PE-53821S
PE-53822S
PE-53823S
PE-53824S
PE-53825S
PE-53826S
PE-53827S
PE-53828S
PE-53829S
PE-53830S
PE-53831S
PE-53932S
PE-53933S
PE-53934S
PE-53935S
PE-54036S
PE-54037S
PE-54038S
PE-54039S
PE-54040S
PE-54041S
—
—
PE-54044S
—
National
Part Number
LM259X-L1
LM259X-L2
LM259X-L3
LM259X-L4
LM259X-L5
LM259X-L6
LM259X-L7
LM259X-L8
LM259X-L9
LM259X-L10
LM259X-L11
LM259X-L12
LM259X-L13
LM259X-L14
LM259X-L15
LM259X-L16
LM259X-L17
LM259X-L18
LM259X-L19
LM259X-L20
LM259X-L21
LM259X-L22
LM259X-L23
LM259X-L24
LM259X-L25
LM259X-L26
LM259X-L27
LM259X-L28
LM259X-L29
LM259X-L30
LM259X-L31
LM259X-L32
LM259X-L33
LM259X-L34
LM259X-L35
LM259X-L36
LM259X-L37
LM259X-L38
LM259X-L39
LM259X-L40
LM259X-L41
LM259X-L42
LM259X-L43
LM259X-L44
LM258X-L
Specified
L(µH)
259
178
118
79
55
39
26
374
256
176
118
78
55
39
26
17
375
252
173
115
78
54
38
26
18
377
248
168
112
77
53
37
24
17
250
168
114
77
53
38
25
167
110
77
19
Idc
(Amps)
0.13
0.16
0.20
0.25
0.30
0.34
0.45
0.20
0.25
0.30
0.38
0.46
0.56
0.68
0.84
1.02
0.36
0.44
0.54
0.67
0.82
1.00
1.20
1.48
1.81
0.68
0.83
1.02
1.26
1.54
1.87
2.24
2.74
3.00
1.50
1.81
2.22
2.70
3.00
3.00
3.00
2.50
3.00
3.00
4.50
Talema Part Number
SMD
SWS-0.13-259
SWS-0.16-178
SWS-0.20-118
SWS-0.25-79
SWS-0.30-55
SWS-0.34-39
SWS-0.45-26
SWS-0.20-374
SWS-0.25-256
SWS-0.30-176
SWS-0.38-118
SWS-0.46-78
SWS-0.56-55
SWS-0.68-39
SWS-0.84-26
SWS-1.02-17
SWS-0.36-375
SWS-0.44-252
SWS-0.54-173
SWS-0.67-115
SWS-0.82-78
SWS-1.00-54
SWS-1.20-38
SWS-1.48-26
SWS-1.81-18
SWS-0.68-377
SWS-0.83-248
SWS-1.02-168
SWS-1.26-112
SWS-1.54-77
SWS-1.87-53
SWS-2.24-37
SWS-2.74-24
SWS-3.00-17
SWS-1.50-250
SWS-1.81-168
SWS-2.22-114
SWS-2.70-77
SWS-3.00-53
SWS-3.00-38
SWS-3.00-25
SWS-2.50-167
SWS-3.00-110
SWS-3.00-77
SWS-4.50-19
SWT-3.00-25
TH - Flat
SWT-0.13-259
SWT-0.16-178
SWT-0.20-118
SWT-0.25-79
SWT-0.30-55
SWT-0.34-39
SWT-0.45-26
SWT-0.20-374
SWT-0.25-256
SWT-0.30-176
SWT-0.38-118
SWT-0.46-78
SWT-0.56-55
SWT-0.68-39
SWT-0.84-26
SWT-1.02-17
SWT-0.36-375
SWT-0.44-252
SWT-0.54-173
SWT-0.67-115
SWT-0.82-78
SWT-1.00-54
SWT-1.20-38
SWT-1.48-26
SWT-1.81-18
SWT-0.68-377
SWT-0.83-248
SWT-1.02-168
SWT-1.26-112
SWT-1.54-77
SWT-1.87-53
SWT-2.24-37
SWT-2.74-24
SWT-3.00-17
SWC-3.00-17
SWC-1.50-250
SWC-1.81-168
SWC-2.22-114
SWC-2.70-77
SWC-3.00-53
SWC-3.00-38
SWC-3.00-25
SWC-2.50-167
SWC-3.00-110
SWC-3.00-77
SWC-4.50-19
TH - Vertical
AMGIS, LLC * 10830 Kinghurst Dr. Houston, TX 77099
Phone: 832-775-1319 * Fax: 281-933-9067* email:
sales@amgistoroids.com
Toll Free: 877-762-6447 *
www.amgistoroids.com
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