SRP1204

PL
IA
NT
CO
M
*R
oH
S
Features
Applications
■ Shielded construction
■ Input/output of DC/DC converters
■ Unit height of 4 mm
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
■ Inductance range: 0.5 µH to 1.8 µH
R50
■ Current up to 13 A
■ RoHS compliant*
SRP1204 Series - Shielded Power Inductors
Electrical Specifications
Bourns Part No.
Initial
Inductance
L0 (µH)
Inductance
at Flat Point
L1 (µH)
Flat Point
ref.
(A)
I rms
(A)
I sat
(A)
DCR
(mΩ) max.
SRP1204-R50M
SRP1204-1R1M
SRP1204-1R8M
0.75 ± 20 %
1.30 ± 20 %
2.00 ± 20 %
0.55 ± 20 %
1.10 ± 20 %
1.80 ± 20 %
2.0
2.0
2.0
13.0
12.0
10.0
14.0
13.0
11.0
3.0
4.5
6.0
L vs I Charts
Materials
Core .........................................Ferrite ER
Wire .............................Enameled copper
Terminal.....................................Cu/Ni/Sn
Rated Current.......Ind. drops 20 % at I sat
Temperature Rise..........40 ˚C at rated I rms
Packaging .......800 pcs. per 13-inch reel
2.0
1R8
1.5
Inductance (µH)
General Specifications
Test Voltage........................................1 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.
Product Dimensions
1R1
1.0
12.50 ± 0.30
(0.492 ± 0.012)
12.50 ± 0.30
(0.492 ± 0.012)
R50
1.90 ± 0.20
(0.748 ± 0.008)
R50
0.5
2.0
0
5
10
15
DC Current (A)
4.00 ± 0.20
(0.157 ± 0.008)
Electrical Schematic
3.00
(0.118)
NOM.
1
7.50 ± 0.25
(0.295 ± 0.010)
3
REF.
2.50
(0.098)
NOM.
5.20
2
(0.205)
2.00
6.40
REF.
REF.
(0.079)
(0.252)
3 CLIP (for mounting - no electrical connection)
Recommended Layout
REF.
4.70
(0.185)
3.0
REF.
(0.118)
REF.
REF.
3.75
REF.
(0.148)
REF.
10.50
(0.413)
7.50
(0.295)
4.50
(0.177)
4.15
REF.
(0.163)
13.0
REF.
(0.512)
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)
3.75
REF.
(0.148)
4.15
REF.
(0.163)
SRP1204 Series - Shielded Power Inductors
Soldering Profile
275
225
Temperature (°C)
260 °C peak
<1> Maximum of 10 seconds
between +255 °C and +260 °C
<1> 255 °C
220 °C
190°C
Ramp Down
5 °C/second
60 seconds
maximum
175
150 °C
125
120-150 seconds
10 seconds minimum
75
Ramp Up
4 °C/second maximum
25
0
50
100
150
200
250
300
Time (Seconds)
Packaging Specifications
330.0
(13.00)
DIA.
2.0 ± 0.5
(.079 ± .020)
30.4
(1.197)
THICKNESS
0.10
(.004)
MAX.
13.0
(.51)
DIA.
21.0 ± 0.8
(.827 ± .031)
EMBOSSED
CAVITY
50.0 - 0
(1.97 - 0)
13.0
DIA.
(.51)
EMBOSSED
CARRIER
26.0 - 0
(1.02 - 0)
4.0
(0.157)
16.0
(0.630)
END
R50
R50
R50
R50
NO COMPONENT
START
R50
NO COMPONENT
200
(7.874)
COMPONENTS
MIN.
400
(15.748)
MIN.
USER DIRECTION OF FEED
DIMENSIONS:
REV. 05/11
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MM
(INCHES)