SW Series • Inductors for National's 50kHz Simple Switcher
TM
TM
Compatible
with National Semiconductor's Simple Switcher
Part Number's LM2574, LM2475 and LM2576
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
Electrical Specifications at 25°C ambient
Rated
Current
(I
DC
)
3.0
3.0
3.0
2.0
1.4
1.4
0.9
0.9
0.64
0.85
3.0
3.0
3.0
2.0
1.3
0.95
0.62
0.42
L
N
(µH)
Typical *
47
68
100
150
220
220
330
330
470
680
150
220
330
470
680
1000
1500
2200
L
O
(µH)
± 20%
N o D C L o ad
38
55
91
130
230
176
302
267
426
657
136
167
292
369
562
762
1150
1730
ET
OP
(V-µSec)
Max.
90
90
90
90
90
90
90
90
90
90
200
200
200
200
200
200
200
200
DCR
(Ohms)
Max.
0.05
0.02
0.04
0.10
0.38
0.14
0.74
0.18
0.16
1.25
0.10
0.07
0.15
0.17
0.20
0.24
1.00
1.80
4
5
5
5
5
5
8
8
3
4
5
5
2
2
3
P ackag e
"C"
2
4
4
4
6
5
6
5
6
5
2
2
5
2
2
"S"
5
" T"
5
"B"
" F"
"V"
Part Number
SW_-3.0-47
SWC-3.0-68
SWC-3.0-100
SW_-2.0-150
SW_-1.4-220
SW_-1.4-220
SW_-0.9-330
SW_-0.9-330
SWC-0.64-470
SW_-0.85-680
SWC-3.0-150
SWC-3.0-220
SWC-3.0-330
SWC-2.0-470
SWC-1.3-680
SWC-0.95-1000
SWB-0.62-1500
SWB-0.42-2200
Notes:
1)
Inductance will be typical for the
DC
and ET
OP
I
values listed above.
2)
No load Inductance will be measured @
20kHz, 10mVrms.
Simple Switcher
TM
is a trademark of National
3)
Semiconductor Corporation.
Ordering Key
SW C - 3.0 - 47
Inductance Value in µH
Current Rating (Amps)
Mounting Style - Specify the appropriate suffix
C = Clip Mount
S = Surface Mount (S5 or S6)
T = Low Profile TH Mount
B = Base Mount
F = Flat Encapsulated
V = Vertical Encapsulated
Basic Series Designation
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
Mounting Styles • SW Series • Low Cost Toroidal Inductors
Type "B" - Vertical Mount
Type "V" - Vertical Mount - Size 2
AMGIS
Suggested Pad
Layout
(Top Side View)
0.394
(10.0)
0.031
(Ø 0.80)
2
0.591
(15.0)
0.157±0.039
(4.0 ±1.0)
SWV-XX-XXX
Date Code
0.709
(18.0)
1.38 Max
(35.0)
Schematic
1
AMGIS
2.00
(5.1)
SWB-XX-XXX
Date Code
0.901
(22.9)
0.591
(15.0)
0.071
(1.80)
0.043
(1.10)
0.157±0.039
(4.0 ±1.0)
1
0.80
(20.3)
2
Suggested Pad
Layout
0.901
(22.9)
0.094
(2.40)
2
0.055
(1.40)
0.598
(15.2)
0.512
(13.0)
0.709
18.0
0.394
(10.0)
1
0.598
(15.2)
Type "F" - Flat Mount - Size 2
SWF-XX-XXX
Date Code
1.10
(27.9)
1.45
(36.8)
AMGIS
0.49
(12.5)
Suggested Pad
Layout
(Top Side View)
0.394
(10.0)
Type SWT -Through Hole Mount
Suggested Pad
Layout
(Top Side View)
0.600
(15.24)
0.400
(10.16)
0.024 x 0.035
(0.60 x 0.88)
0.394
(10.0)
0.67
(17.0)
0.394
(10.0)
0.138±0.01
(3.5 ±0.3)
2
0.591
(15.0)
0.071
(1.80)
0.043
(1.10)
0.701
(17.8)
0.600
(15.24)
1
AMGIS
Date Code
SWT-xxx-xx
0.400
(10.16)
0.669
(17.0)
0.422
(10.71)
0.138
3.50
0.600
(15.24)
0.059
(1.50)
0.035
(0.90)
0.591 0.69
(15.0) (17.5)
Type SWS - Surface Mount
D
Pad Width
S6
S1 - S5
0.079
0.059
(2.00)
(1.50)
E
Type SWC - Clip Mount
Schematic
1
A
B
D
AMGIS
Date Code
SWS-xxx-xx
X
2
Suggested Pad
Layout
Schematic
1
1/2
c
C
0.138
(3.50)
E
D
Suggested Pad
Layout
0.071
E
(1.80)
0.047
(1.20)
C
2
Surface Coplanarity will be <0.005(0.13)
D
Mounting
Style
Siz e
C ode
C2
Dimensions - Inches (mm )
C
0.650
(16.5)
0.827
(21.0)
0.949
((24.1)
1.252
(31.8)
D
0.449
(11.4)
0.449
(11.4)
0.598
(15.2)
0.701
(17.8)
E
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)
0.130
(3.30)
Mounting
Style
"S"
SMD
Siz e
C ode
S5
S6
Dimensions - Inches (mm )
A
0.669
(17.0)
0.925
(23.5)
B
0.701
(17.8)
0.925
(23.5)
C
0.425
(10.8)
0.531
(13.5)
D
0.591
(15.0)
0.827
(21.0)
E
0.591
(15.0)
0.689
(17.5)
"C"
Vertical
Clip
Mount
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 50kHz Simple Switcher
TM
Pulse Engineering -
Pulse Eng.
Part
Number
PE-53112
PE-92114K
PE-92108K
PE-53113
PE-52626
PE-53145
PE-52627
PE-53146
PE-53114
PE-52629
PE-53115
PE-53116
PE-53117
PE-53118
PE-53119
PE-53120
PE-53121
PE-53122
*Note: There are no equivalent Pulse SMD types for
Vertical
Clip Mount
SWC-3.0-47
SWC-3.0-68
SWC-3.0-100
SWC-2.0-150
SWC-1.4-220
SWC-0.90-330
SWC-0.64-470
SWS-0.85-680
SWC-3.0-150
SWC-3.0-220
SWC-3.0-330
SWC-2.0-470
SWC-1.3-680
SWC-0.95-1000
SWB-0.62-1500
SWB-0.42-2200
P/N SWT-3.0-47 and the SWS style SMD package.
SWT-0.85-680
SWF-0.85-680
SWV-0.85-680
Flat Open
SMD
SWS-3.0-47
Talema Part Number*
Flat Open
TH
SWT-3.0-47
Vertical TH
Base Mount
Flat TH
Encapsulated
Vertical TH
Encapsulated
SWS-2.0-150
SWS-1.4-220
SWS6-1.4-220
SWS-0.90-330
SWS6-0.90-330
SWT-1.4-220
SWT-0.90-330
SWF-1.4-220
SWF-0.90-330
SWV-1.4-220
SWV-0.90-330
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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