SRP2512

NT
IA
PL
M
CO
Features
Applications
■ Wirewound construction
■ DC/DC converters for:
*R
oH
S
■ Iron powder core
■ Magnetically shielded construction
provides low radiation
■ Low DC resistance
-
Smart phones
DVC/DSCs
Tablets
HDD/SSDs
Mobile electronic devices
■ Low profile
■ RoHS compliant*
SRP2512 Series - SMD Power Inductors
Electrical Specifications @ 25 °C
General Specifications
Inductance
@ 1 MHz / 1 V
L (µH)
Tol. (%)
Bourns
Part Number
DCR
(mΩ) Max.
Irms
(A)
Isat
(A)
SRP2512-R47M
0.47
20
25
4.5
5.3
SRP2512-R68M
0.68
20
35
3.7
4.1
SRP2512-1R0M
1
20
49
3.4
3.4
SRP2512-1R5M
1.5
20
77
2.5
3.2
SRP2512-2R2M
2.2
20
104
2.1
3.0
Electrical Schematic
How to Order
SRP2512 - 1R0M
Inductance Test Frequency ... 1 MHz/1 V
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-50 °C to +125 °C
Rated Current
............ Inductance drops 30 % at Isat
Temperature Rise .....40 °C at rated Irms
Resistance to Soldering Heat ....+260 °C
Materials
Core .....................................Iron powder
Terminal ......................................... Ni/Sn
Packaging ....... 3000 pcs. per 7-inch reel
Model
Value Code (see table)
Product Dimensions
Soldering Profile
1.2
MAX.
(.047)
tp
Tp
CRITICAL
ZONE
TL to TP
Temperature (°C)
RAMP-UP
TL
tL
Tsmax
0.6 ± 0.2
(.024 + .008)
0.6 ± 0.2
(.024 + .008)
2.5 ± 0.2
(.098 ± .008)
Tsmin
RAMP-DOWN
ts
Preheat
2.0 ± 0.2
(.079 ± .008)
25
Recommended Layout
t
25 °C to Peak
Time (Seconds)
Profile Feature
Pb Free Assembly
Average Ramp Rate (TSmax to TP)
Preheat
- Temperature Min. (TSmin)
- Temperature Max. (TSmax)
- Time (tsmin to tsmax)
3 °C/second max.
150 °C
200 °C
60-180 seconds
Time Maintained Above
- Temperature (TL)
- Time (tL)
217 °C
60-150 seconds
Peak Temperature (Tp)
260 °C +0/-5 °C
Time within 5 °C of Actual Peak Temperature
(Tp)
20-40 seconds
Ramp-Down Rate
6 °C/second max.
Time 25 °C to Peak Temperature
8 minutes max.
1.2
(.047)
2.0
(.079)
2.8
(.110)
DIMENSIONS:
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
MM
(INCHES)
SRP2512 Series
SRF0504
Series- SMD
- LinePower
FilterInductors
L vs. I Charts
SRP2512-R47M
60
0.2
40
0.1
20
0
0
2
1
3
4
5
0
7
6
1.6
1.5
1.4
1.3
1.2
1.1
1.0
DC Bias(A)
0.9
0.8
0.7
0
1
0.5
1.5
100
60
40
0.3
20
0.1
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
0
7
DC Bias(A)
2
2.5
3
DC Bias(A)
SRP2512-2R2M
2.5
Inductance (μH)
80
0.5
Temperature Rise (°C)
Inductance (μH)
0.7
SRP2512-R68M
20
15
10
5
0
3.5
100
2.0
80
1.5
60
1.0
40
0.5
20
0
80
0.9
60
0.6
40
0.3
20
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Temperature Rise (°C)
Inductance (μH)
100
0
0
0
SRP2512-1R0M
1.2
Temperature Rise (°C)
0.3
70
65
60
55
50
45
40
35
30
25
Temperature Rise (°C)
80
1.7
Inductance (μH)
0.4
SRP2512-1R5M
1.8
100
Temperature Rise (°C)
Inductance (μH)
0.5
0.5
1
1.5
2
2.5
3
3.5
4
DC Bias(A)
0
5
DC Bias(A)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
SRP2512 Series - SMD Power Inductors
Packaging Specifications
110 ± 0.5
(4.331 ± .020)
13.0 ± 0.2
DIA.
(.512 ± .008)
2.2 ± 0.5
(.087 ± .020)
4.0 ± 0.5
(.157 ± .020)
178 ± 1.0
(7.008 ± .040)
DIA.
5.0 ± 0.5
(.197 ± .020)
60 +0.5/-0.0
(2.362 +.020/-.000)
DIA.
3.0 ± 0.5
(.118 ± .020)
9.0 ± 0.5
(.354 ± .020)
0.25 ± 0.05
(.010 ± .002)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.05
(.079 ± .002)
1.55 ± 0.05
(.061 ± .002)
12.0 ± 0.15
(.472 ± .006)
1.75 ± 0.1
(.069 ± .004)
3.0 ± 0.1
(.118 ± .004)
3.5 ± 0.1
(.138 ± .004)
8.0 ± 0.3
(.315 ± .012)
1.6 ± 0.10
(.063 ± .004)
2.5 ± 0.1
(.098 ± .004)
USER DIRECTION OF FEED
4.0 ± 0.1
(.157 ± .004)
DIMENSIONS:
QTY: 3,000 PCS. PER REEL
MM
(INCHES)
Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
REV. 02/15
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.