Features
n Wirewound
n Shielded construction
n Metal alloy powder core
n High saturation current
n Low profile
n AEC-Q200 compliant
n RoHS compliant* and halogen free**
SRP2512A Series - Shielded Power Inductors
Operating Temperature ...-40 °C to +125 °C
(Temperature rise included)
Storage Temperature (Component)
....................................-50 °C to +125 °C
Rated Current
................ Inductance drops 30 % at Isat
Temperature Rise .........40 °C at rated Irms
Moisture Sensitivity Level (MSL) ..............1
ESD Classication (HBM)..................... N/A
Electrical Specications @ 25 °C General Specications
Core ..............................Metal alloy powder
Wire ................................Enameled copper
Terminal Finish .......................................Sn
Packaging ........... 3000 pcs. per 7-inch reel
Materials
Recommended Layout
DIMENSIONS: MM
(INCHES)
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine
(Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of
this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Bourns
Part Number
Inductance
@ 1 MHz
/ 1 V Q (Typ.)
@1 MHz /
1 V
SRF
(MHz)
Typ.
DCR
(mW)
Typ.
DCR
(mW)
Max.
Irms
(A)
Typ.
Isat
(A)
Typ.
L
(µH)
Tol.
(%)
SRP2512A-R47M 0.47 ±20 39 129 21 25 4.6 5.3
SRP2512A-R68M 0.68 ±20 39 104 29 35 3.7 5.0
SRP2512A-1R0M 1.0 ±20 39 82 41 49 3.5 4.4
SRP2512A-1R5M 1.5 ±20 39 71 64 77 2.5 3.2
SRP2512A-2R2M 2.2 ±20 39 62 85 98 2.27 3.0
SRP2512A-4R7M 4.7 ±20 39 37 196 235 1.55 1.9
Product Dimensions
Soldering Prole
t
25 °C to Peak
ts
Preheat
tL
tp
25
TL
Tp
Temperature (°C)
Time (Seconds)
RAMP-DOWN
RAMP-UP
Tsmax
Tsmin
CRITICAL
ZONE
TL to TP
Prole Feature Pb Free Assembly
Average Ramp Rate (TSmax to TP) 3 °C/second max.
Preheat
- Temperature Min. (TSmin)
- Temperature Max. (TSmax)
- Time (tsmin to tsmax)
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.
2.5 ± 0.2
(.098 ± .008)
2.0 ± 0.2
(.079 ± .008)
2.0
(.079)
0.6 ± 0.3
(.024 + .012)
0.6 ± 0.3
(.024 + .012)
1.2
(.047)MAX.
2.8
(
.110
)
1.2
(.047)
2.5 ± 0.2
(.098 ± .008)
2.0 ± 0.2
(.079 ± .008)
2.0
(.079)
0.6 ± 0.3
(.024 + .012)
0.6 ± 0.3
(.024 + .012)
1.2
(.047)MAX.
2.8
(
.110
)
1.2
(.047)
How to Order
SRP2512A - R47M
Model
Value Code (see table)
Electrical Schematic
4.5
(.177)
1.5
(.060)
2.5
(.099)
SRF0504 Series - Line Filter
SRP2512A Series - Shielded Power Inductors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
L vs. I Charts
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
012 3 4 5 0
Inductance (μH)
DC Bias (A)
SRP2512A-R47M
Temperature Rise (°C)
10
20
30
40
50
60
70
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
0.70
012 3 4 5 0
Inductance (μH)
DC Bias (A)
SRP2512A-R68M
Temperature Rise (°C)
10
20
30
40
50
60
70
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
012340
Inductance (μH)
DC Bias (A)
SRP2512A-1R0M
Temperature Rise (°C)
10
20
30
40
50
60
70
0.70
0.80
1.00
0.90
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
0123
0
Inductance (μH)
DC Bias (A)
SRP2512A-1R5M
Temperature Rise (°C)
10
20
30
40
50
60
70
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2.40
0123
0
Inductance (μH)
DC Bias (A)
SRP2512A-2R2M
Temperature Rise (°C)
10
20
30
40
50
60
70
2.00
2.50
3.00
3.50
4.00
4.50
5.00
00.5 1.01.5 2.0 0
Inductance (μH)
DC Bias (A)
SRP2512A-4R7M
Temperature Rise (°C)
10
20
30
40
50
60
70
SRP2512A Series - Shielded Power Inductors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
REV. 05/19
Packaging Specications
DIMENSIONS: MM
(INCHES)
2.25 ± 0.05
(.089 ± .002)
4.0 ± 0.1
(.157 ± .004)
QTY: 3,000 PCS. PER REEL
2.8 ± 0.1
(.110 ± .004)
1.75 ± 0.1
(.069 ± .004)
3.5 ± 0.1
(.138 ± .004)
8.0 ± 0.3
(.315 ± .012)
1.35 ± 0.10
(.053 ± .004)
0.22 ± 0.05
(.009 ± .002)
USER DIRECTION OF FEED
1.55 ± 0.05
(.061 ± .002) 2.0 ± 0.05
(.079 ± .002)
4.0 ± 0.1
(.157 ± .004)
110 ± 0.5
(4.331 ± .020)
4.0 ± 0.5
(.157 ± .020)
5.0 ± 0.5
(.197 ± .020)
3.0 ± 0.5
(.118 ± .020)
2.2 ± 0.5
(.087 ± .020)
13.0 ± 0.2
(.512 ± .008) DIA.
9.0 ± 0.5
(.354 ± .020)
12.0 ± 0.15
(.472 ± .006)
60 +0.5/-0.0
(2.362 +.020/-.000)
DIA.
178 ± 1.0
(7.008 ± .040)
DIA.
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C1753 05/17/18R