Features
Applications
■ Shielded construction
■ Unit height of 5.6 mm
■ Inductance range: 0.3 µH to 7.2 µH
■ Current up to 18 A
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
■ RoHS compliant*
SRP1205 Series - Shielded Power Inductors
General Specifications
Electrical 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
Flat
Point
ref.
Initial
Bourns Part No. Inductance
L0 (µH)
Inductance
at Flat Point
L1 (µH)
SRF
typ.
(MHz)
I rms
(A)
I sat
(A)
DCR
(mΩ) max.
(A)
SRP1205-R30Y 0.54 25 % 0.30 25 %
SRP1205-R60Y 0.85 25 % 0.60 25 %
SRP1205-1R0Y 1.25 25 % 1.00 25 %
SRP1205-1R8Y 2.00 25 % 1.80 25 %
SRP1205-2R5Y 2.70 25 % 2.50 25 %
SRP1205-3R3Y 3.50 25 % 3.30 25 %
SRP1205-4R0Y 4.20 25 % 4.00 25 %
SRP1205-5R6Y 5.80 25 % 5.60 25 %
SRP1205-7R2Y 7.40 25 % 7.20 25 %
5.00
5.00
5.00
2.00
2.00
2.00
3.00
2.00
2.00
160
95
75
55
40
40
35
30
30
18.0
16.0
14.0
13.0
11.5
11.0
10.5
8.5
35.0
27.0
22.0
16.0
12.0
11.8
8.3
1.8
2.5
3.4
3.4
3.4
5.4
5.4
11.4
13.5
..............................+260 °C for 10 sec.
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 .......600 pcs. per 13-inch reel
8.0
7.5
8.3
Product Dimensions
L vs I Charts
12.50 0.30
8.0
(0.492 0.012)
1.90 0.20
12.50 0.30
(0.748 0.008)
(0.492 0.012)
7R2
6.0
4R0
4.0
5.60
(0.220)
5.00
(0.197)
2R5
1R8~7R2:
MAX. R30~1R0:
MAX.
1
2.0
2.00
(0.079)
NOM.
2.50
(0.098)
NOM.
1R0
R30
7.50 0.25
(0.295 0.010)
0.0
3
0
10
20
30
40
5.20
(0.205)
REF.
DC Current (A)
2
2.00
6.40
REF.
REF.
(0.079)
(0.252)
3
CLIP (for mounting fixed)
Electrical Schematic
Recommended Layout
REF.
4.70
(0.185)
3.75
(0.148)
3.00
(0.118)
REF.
REF.
REF.
7.50
(0.295)
10.50
REF.
REF.
(0.413)
4.50
(0.177)
3.75
(0.148)
4.15
REF.
REF.
4.15
(0.163)
REF.
(0.163)
13.0
(0.512)
REF.
MM
(INCHES)
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.