SH50 Series • Inductors for National's 50kHz Simple Switcher
TM
Compatible
with National Semiconductor's Simple Switcher
TM
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 Talema 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
(I
DC
)
3.0
3.0
5.0
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
36
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
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
90
200
200
200
200
200
200
200
200
DCR
(Ohms)
Max.
0.05
0.02
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
4
6A
5
6A
5
6A
6A
5
6A
5
6A
2
2
2
2
"S"
5
" T"
5
"B"
" F"
" V"
Part Number
SH50_-3.0-47
SH50C-3.0-68
SH50C-5.0-36
SH50C-3.0-100
SH50_-2.0-150
SH50_-1.4-220
SH50_-1.4-176
SH50_-0.9-330
SH50_-0.9-267
SH50C-0.64-470
SH50_-0.85-680
SH50C-3.0-150
SH50C-3.0-220
SH50C-3.0-330
SH50C-2.0-470
SH50C-1.3-680
SH50C-0.95-1000
SH50B-0.62-1500
SH50B-0.42-2200
Notes:
1) Inductance will be typical for the I
DC
and ET
OP
values listed above.
2) No load Inductance measured at B
OP
maximum of 10 gauss (10mV @ 20kHz).
3) Simple Switcher
TM
is a trademark of National
Semiconductor Corporation.
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
THE TALEMA GROUP • Magnetic Components for Universal Applications
Mounting Styles • SH50 Series - Low Cost Toroidal Inductors
Type SH50B - Vertical Mount
Schematic
1
1.38 Max
(35.0)
2
2.00
(5.1)
TALEMA IN
SWB-XX-XXX
Date Code
0.031
(Ø 0.80)
0.157±0.039
(4.0 ±1.0)
Type SH50V - Vertical Mount - Size 2
0.591
(15.0)
TALEMA IN
SWV-XX-XXX
Date Code
0.709
(18.0)
Suggested
Board Layout
(Top Side View)
0.394
(10.0)
0.394
(10.0)
0.591
0.071 (15.0)
(1.80)
0.043
(1.10)
0.512
(13.0)
0.709
(18.0)
1
0.901
(22.9)
0.157±0.039
(4.0 ±1.0)
1
1
0.80
(20.3)
2
1.10
(27.9)
1.45
(36.8)
0.598
(15.2)
2
Suggested
Board Layout
(Top Side View)
0.901
(22.9)
0.094
(2.40)
0.055
(1.40)
0.024 x 0.035
(0.60 x 0.88)
0.394
(10.0)
0.67
(17.0)
0.394
(10.0)
0.598
(15.2)
2
Type SH50F - Flat Mount - Size 2
TALEMA IN
SWF-XX-XXX
Date Code
0.49
(12.5)
Suggested
Board Layout
(Top Side View)
0.394
(10.0)
0.138±0.01
(3.5 ±0.3)
0.071
(1.80)
0.043
(1.10)
0.591 0.69
(15.0) (17.5)
0.591
(15.0)
Type SH50T -Through Hole Mount
2
Schematic
B
D
Talema IN
Date Code
SH50T-xx-xx
1
D
2
1
Schematic
1
E
A
Suggested
Board Layout
(Top Side View)
0.059
(1.50)
D
0.035
(0.90)
2
Type SH50C - Clip Mount
Schematic
1
C
Ø 0.024 x 0.138
(Ø 0.60 x 3.50)
E
E
X
2
Type SH50S - Surface Mount
Suggested
Pad Layout
A
2
D
Pad
Width
S1 - S5
0.059
(1.50)
E
S6
0.079
(2.00)
1/2
c
0.138
(3.50)
Suggested
Board Layout
(Top side view)
C
E
D
E
0.071
(1.80)
0.047
(1.20)
B
D
Talema IN
Date Code
SH50S-xx-xx
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)
1
Schematic
1
C
2
"C"
Vertical
Clip
Mount
C3
C4
C5
D
Surface Coplanarity will be <0.005(0.13)
Mounting
Style
"S"
SMD
Siz e
C ode
S5
SH6A
Dimensions - Inches ±0.010 (mm ±0.25 )
A
0.669
(17.0)
0.925
(23.5)
B
0.701
(17.8)
0.957
(24.3)
C
0.441
(11.2)
0.445
(11.3)
D
0.591
(15.0)
0.843
(21.4)
E
0.630
(16.0)
0.748
(19.0)
Mounting
Style
" T"
TH T
Siz e
C ode
T5
TH6A
Dimensions - Inches ±0.010 (mm ±0.25 )
A
0.669
(17.0)
0.925
(23.5)
B
0.701
(17.8)
0.957
(24.3)
C
0.409
(10.4)
0.386
(9.8)
D
0.600
(15.24)
0.650
(16.51)
E
0.500
(12.7)
0.800
(20.32)
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