SH50 Series • Inductors for National's 50kHz Simple SwitcherTM
Compatible with National Semiconductor's Simple SwitcherTM 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 THT versions
• Manufactured in ISO-9001:2000, TS-16949:2002 and
ISO-14001:2004 certified facility
• Meets lead free reflow level J-STD-020C
• Fully RoHS compliant
Electrical Specifications @ 25°C
Test voltage between windings: 500 Vrms
Operating temperature range: -40°C to +125°C
Climatic Category: IEC68-1 40/125/56
Test frequency: Inductance measured @ 10kHz / 10mV
Rated
Current
(IDC)
LN (μH)
Typical *
LO (μH)
±20%
No DC Load
ET OP
(V-μSec)
Max.
DCR
(Ohms)
Max.
"C"
"S"
"T "
SH50_-3.0-47
3.0
47
38
90
0.05
2
5
*
SH50C-5.0-36
5.0
36
55
90
0.02
4
SH50C-3.0-100
3.0
100
91
90
0.04
4
SH50_-2.0-150
2.0
150
130
90
0.10
4
6
6
SH50_-1.4-220
1.4
220
230
90
0.38
5
*
6A
6A
5
*
6A
6A
5
*
Part Number
Package
SH50_-1.4-176
1.4
220
176
90
0.14
SH50_-0.9-330
0.9
330
302
90
0.74
3
SH50_-0.9-267
0.9
330
267
90
0.18
3
SH50C-0.64-470
0.64
470
426
90
0.16
4
SH50_-0.85-680
0.85
680
657
90
1.25
SH50C-3.0-150
3.0
150
136
200
0.10
4
SH50C-3.0-220
3.0
220
167
200
0.07
5
SH50C-3.0-330
3.0
330
292
200
0.15
5
SH50C-2.0-470
2.0
470
369
200
0.17
5
"B"
SH50C-1.3-680
1.3
680
562
200
0.20
5
SH50C-0.95-1000
0.95
1000
762
200
0.24
5
SH50B-0.62-1500
0.62
1500
1150
200
1.00
8
SH50B-0.42-2200
0.42
2200
1730
200
1.80
8
* The previous SW "T" (size 5 - plate version) has
been discontinued and replaced with a pin equivalent
"Flat Mount" - Package SH50F, size 2. Dimensions
on the following Mounting Styles page.
Notes:
1) Inductance will be typical for the IDC and ETOP
values listed above.
2) No load Inductance measured at BOP
maximum of 10 gauss (10mV @ 20kHz).
3) Simple SwitcherTM is a trademark of National
Semiconductor Corporation.
"F"
"V"
2
2
2
2
2
2
Ordering Key
SH50 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 * 10899 Kinghurst St. Ste. 220 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 • SH50 Series - Low Cost Toroidal Inductors
0.591
(15.0)
AMGIS
Schematic
SH50V-XX-XXX
Date Code
1
0.709
(18.0)
0.394
(10.0)
2
SWB-XX-XXX
Date Code
2.00
(5.1)
Ø0.031
(Ø 0.80)
0.157±0.039
(4.0 ±1.0)
Suggested
Board Layout
(Top Side View)
0.901
(22.9)
1
0.800
(20.3)
0.598
(15.2)
SH50F-XX-XXX
Date Code
Schematic
AMGIS
0.394
(10.0)
0.138±0.01
(3.5 ±0.3)
0.591
(15.0)
0.071
(1.80)
0.394
(10.0)
1
Date Code
SH50T-xx-xx
0.043
(1.10)
D
Schematic
0.591 0.69
(15.0) (17.5)
2
1
0.490
(12.5)
0.394
(10.0)
0.67
(17.0)
Ø0.024
(Ø0.60)
2
D
Suggested
Board Layout
(Top Side View)
0.055
(1.40)
Type SH50T -Through Hole Mount
B
1
Suggested
Board Layout
(Top Side View)
E
A
2
0.035
(0.90)
0.059
(1.50)
C
Suggested
Board Layout
(Top side view)
Type SH50C - Clip Mount
D
X
E
E
0.047
(1.20)
Type SH50S - Surface Mount
Schematic
Suggested
Pad Layout
A
1
Pad
Width
D
2
1/2 c
Date Code
SH50S-xx-xx
E
1
Mounting
Style
S6
0.079
(2.00)
Schematic
1
C
Surface Coplanarity will be
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