BOURNS SRP1235-1R0M

*R
*RoHS
oH C
S OM
CO P
M LIA
PL N
IA T
NT
Features
Applications
■ Shielded construction
■ Input/output of DC/DC converters
■ Unit height of 3.7 mm
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
■ Inductance range: 0.1 µH to 6.8 µH
■ Current up to 43 A
■ Lead free
■ RoHS compliant*
SRP1235 Series - Shielded Power Inductors
Electrical Specifications
Bourns Part No.
Inductance
µH)
L (µ
I rms
(A)
I sat
(A)
DCR
Ω) max.
(mΩ
SRP1235-R10M
SRP1235-R15M
SRP1235-R22M
SRP1235-R33M
SRP1235-R47M
SRP1235-R60M
SRP1235-R68M
SRP1235-R82M
SRP1235-1R0M
SRP1235-1R5M
SRP1235-1R8M
SRP1235-2R2M
SRP1235-3R3M
SRP1235-4R7M
SRP1235-5R6M
SRP1235-6R8M
0.10
0.15
0.22
0.33
0.47
0.60
0.68
0.82
1.00
1.50
1.80
2.20
3.30
4.70
5.60
6.80
43.0
41.0
38.5
36.5
32.0
29.0
28.0
25.0
24.0
19.0
16.5
16.0
12.0
10.0
10.0
9.0
56
50
50
50
44
42
40
38
36
28
24
20
18
16
14
13
0.96
1.2
1.3
1.5
2.0
2.5
2.5
3.0
3.5
5.5
7
8
12
15
18
22
Soldering Profile
Temperature (°C)
Materials
Core...............................................Ferrite
Wire .............................Enameled copper
Terminal .........................................Cu/Sn
Rated Current.......Ind. drops 20 % at I sat
Temperature Rise..........40 ˚C at rated I rms
Packaging .......600 pcs. per 13-inch reel
Product Dimensions
<1> Maximum of 10 seconds
between +255 °C and +260 °C
3.7
MAX.
(.146)
3.5
(.138) MAX.
13.9
MAX.
(0.547)
12.7 ± 0.3
(0.500 ± 0.012)
13.9
(0.547)
MAX.
275
225
General Specifications
Test Voltage...................................0.25 V
Test Frequency ..........................100 KHz
Reflow Soldering .....230 ˚C; 50 sec max.
Operating Temperature ..-55 °C to +150 °C
(Temperature rise included)
Storage Temperature..-55 °C to +150 °C
Resistance to Soldering Heat
..............................+260 °C for 10 sec.
R68
260 °C peak
<1> 255 °C
220 °C
190°C
60 seconds
maximum
175
12.7 ± 0.3
(0.500 ± 0.012)
Ramp Down
5 °C/second
150 °C
125
120-150 seconds
10 seconds minimum
75
3.0 ± 0.5
(0.118 ± 0.020)
Ramp Up
4 °C/second maximum
25
0
50
100
150
200
Time (Seconds)
Electrical Schematic
250
300
2.5 ± 0.5
(0.098 ± 0.020)
Recommended Layout
15.0
(0.591)
4.5
(.177)
7.0
(.276)
DIMENSIONS:
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MM
(INCHES)
SRP1235 Series - Shielded Power Inductors
L vs. I Charts
20
25
30
35
40
45
4
8
12
16 20
4
8
12 16
20
24 28
32
36
40
Inductance (µH)
100
90
80
70
60
50
40
30
20
10
0
4
Temperature Rise (°C)
Inductance (µH)
0
4
8
12
16
DC Current (A)
0
20
24
Inductance (µH)
100
90
80
70
60
50
40
30
20
10
0
28
Temperature Rise (°C)
Inductance (µH)
12 16 20 24
32
36
40
0
4
8
12
16 20
4
8
12
16
20
24
0
4
8
28
12
16
DC Current (A)
28
32
36
40
36
100
90
80
70
60
50
40
30
20
10
0
40
Temperature Rise (°C)
DC Current (A)
32
36
100
90
80
70
60
50
40
30
20
10
0
40
SRP1235-1R0
1.50
1.35
1.20
1.05
0.90
0.75
0.60
0.45
0.30
0.15
0
0
4
8
12
16
20
24
28
32
DC Current (A)
SRP1235-1R8
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0
24
100
90
80
70
60
50
40
30
20
10
0
44
Temperature Rise (°C)
Inductance (µH)
SRP1235-R60
1.20
1.08
0.96
0.84
0.72
0.60
0.48
0.36
0.24
0.12
0
DC Current (A)
SRP1235-1R5
0
28
SRP1235-R82
1.50
1.35
1.20
1.05
0.90
0.75
0.60
0.45
0.30
0.15
0
DC Current (A)
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0
8
DC Current (A)
SRP1235-R68
1.50
1.35
1.20
1.05
0.90
0.75
0.60
0.45
0.30
0.15
0
24
Temperature Rise (°C)
Inductance (µH)
0
DC Current (A)
Inductance (µH)
15
100
90
80
70
60
50
40
30
20
10
0
44
20
100
90
80
70
60
50
40
30
20
10
0
24
Inductance (µH)
10
SRP1235-R47
0.80
0.72
0.64
0.56
0.48
0.40
0.32
0.24
0.16
0.08
0
Temperature Rise (°C)
5
4
DC Current (A)
Temperature Rise (°C)
0
100
90
80
70
60
50
40
30
20
10
0
50
Temperature Rise (°C)
Inductance (µH)
SRP1235-R33
0.60
0.54
0.46
0.43
0.36
0.30
0.24
0.16
0.13
0.06
0
0
DC Current (A)
DC Current (A)
100
90
80
70
60
50
40
30
20
10
0
28 32 36 40 44 48
Temperature Rise (°C)
8
SRP1235-R22
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
SRP1235-2R2
4.0
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
0
4
8
12
16
20
100
90
80
70
60
50
40
30
20
10
0
24
Temperature Rise (°C)
0 4
Inductance (µH)
100
90
80
70
60
50
40
30
20
10
0
12 16 20 24 28 32 36 40 44 48 52
Temperature Rise (°C)
SRP1235-R15
0.30
0.27
0.24
0.21
0.18
0.15
0.12
0.09
0.06
0.03
0
Inductance (µH)
Inductance (µH)
0 4
100
90
80
70
60
50
40
30
20
10
0
8 12 16 20 24 28 32 36 40 44 48 52 56
Temperature Rise (°C)
SRP1235-R10
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
DC Current (A)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
SRP1235 Series - Shielded Power Inductors
0
2
4
6
10
8
12
14
16
18
0
2
4
6
8
10
12
14
16
18
0
2
4
6
8
10
12
14
100
90
80
70
60
50
40
30
20
10
0
16
DC Current (A)
DC Current (A)
SRP1235-6R8
15.0
13.5
12.0
10.5
9.0
7.5
6.0
4.5
3.0
1.5
0
0
1
2
3
4
5
6
7
8
100
90
80
70
60
50
40
30
20
10
0
9 10 11 12 13
DC Current (A)
Packaging Specifications
2.0 ± 0.5
(.079 ± .020)
330.0
(13.00)
DIA.
DIMENSIONS:
21.0 ± 0.8
(.827 ± .031)
MM
(INCHES)
THICKNESS
0.10
(.004)
MAX.
13.5 ± 0.5
(0.53 ± .020)
DIA.
EMBOSSED
CAVITY
75.0 ± 2.0
(2.96 ± 0.08)
13.5 ± 0.5
DIA.
(.53 ± .020)
EMBOSSED
CARRIER
24.0 ± 0.5
(0.95 ± 0.020)
0.35 ± 0.05
(0.014 ± 0.020)
4.0 ± 0.1
(0.157 ± 0.004)
2.0 ± 0.1
(0.079 ± 0.004)
1.5 ± 0.1
(0.059 ± 0.004)
DIA.
13.9 ± 0.1
(0.547 ± 0.004)
4.5 ± 0.1
(0.177 ± 0.004)
1.75 ± 0.1
(.069 ± 0.004)
2.7 ± 0.3
(.106 ± 0.012)
0.15
DIA.
(0.0006)
REV. 10/06
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
13.5 ± 0.1
(0.520 ± 0.004)
16.0 ± 0.1
(0.629 ± 0.004)
24.0 ± 0.3
(0.95 ± 0.012)
Temperature Rise (°C)
SRP1235-5R6
10
9
8
7
6
5
4
3
2
1
0
Temperature Rise (°C)
Inductance (µH)
DC Current (A)
100
90
80
70
60
50
40
30
20
10
0
20
Inductance (µH)
SRP1235-4R7
8.0
7.2
6.4
5.6
4.8
4.0
3.2
2.4
1.6
0.8
0
Temperature Rise (°C)
100
90
80
70
60
50
40
30
20
10
0
20
Inductance (µH)
SRP1235-3R3
6.0
5.4
4.8
4.2
3.6
3.0
2.4
1.8
1.2
0.6
0
Temperature Rise (°C)
Inductance (µH)
L vs. I Charts