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& oHS
AE C
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AP P
PR LI
OV AN
ED T
Features
■ Semi-shielded construction
■ Inductance range: 0.47 to 22 µH
■ Rated current up to 3.2 A
■ AEC-Q200 qualified
■ RoHS compliant* and halogen free**
SRN4012TA Series - Semi-shielded Power Inductors
Inductance
@ 100 kHz / 1 V
Bourns Part No.
SRN4012TA-R47M
SRN4012TA-1R0M
SRN4012TA-1R5M
SRN4012TA-2R2M
SRN4012TA-3R3M
SRN4012TA-4R7M
SRN4012TA-5R6M
SRN4012TA-6R8M
SRN4012TA-100M
SRN4012TA-150M
SRN4012TA-220M
L (μH)
0.47
1.0
1.5
2.2
3.3
4.7
5.6
6.8
10
15
22
Tol. %
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
Q
(Min.)
@ 100 kHz
6
6
6
6
6
6
6
6
10
10
10
SRF
(MHz)
Typ.
140
100
90
70
60
45
40
35
30
24
18
DCR
(Ω)
±20 %
0.025
0.042
0.05
0.06
0.07
0.095
0.12
0.125
0.18
0.26
0.4
Irms
(A)
3.2
2.2
2
1.9
1.7
1.5
1.4
1.3
1.1
0.75
0.62
Isat
(A)
4
2.8
2.2
1.65
1.4
1.2
1.1
0.9
0.8
0.65
0.5
Operating Temperature
................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Temperature Rise .....40 °C at rated Irms
Rated Current
............ Inductance drops 30 % at Isat
Failure In Time (FIT) ........24.7/109 hours
Mean Time Between Failures (MTBF)
.................................. 40.4 x 106 hours
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Coating .................Magnetic epoxy resin
Packaging ..... 4500 pcs. per 13-inch reel
Product Dimensions
4.0 ± 0.2
(.157 ± .008)
Preheating
Soldering
Natural Cooling
TP (260 °C, 10 Sec. Max.)
4.0 ± 0.2
(.157 ± .008)
Temperature (°C)
tp (245 °C, 20~40 Sec.)
200 °C
150°C
217 °C
60~150 Sec.
60~180
Sec.
480 Sec. Max.
REF.
1.2
(.047)
25
Time (Seconds)
Electrical Schematic
REF.
REF.
1.2
(.047)
1.6
(.063)
1.2
(.047)
MAX.
How to Order
SRN4012TA - 100M
Model
Recommended Layout
Value Code (see table)
4.2
REF.
(.165)
4.2
(.165)
REF.
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
* 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
REF.
1.2
(.047)
DIMENSIONS:
MM
(INCHES)
SRF0504
Series
- Line
Filter
SRN4012TA
Series
- Semi-shielded
Power Inductors
Inductance vs. Current
1.5
0.4
0.2
0
2.5
Inductance (μH)
0.6
0
1.0
0.5
2
3
4
0
5
1.0
0.5
1
2
3
4
0
5
SRN4012TA-3R3M
3
4.5
6
1
0
0.7
1.4
2.1
Inductance (μH)
8
2
3.0
1.5
0
0.5
DC Current(A)
1.0
1.5
2
0.4
0.8
0.5
1.2
2.0
0.9
1.2
SRN4012TA-100M
12
20
9
15
6
3
10
5
0
0
1.6
1.0
DC Current(A)
0
0
0
0
2.0
Inductance (μH)
Inductance (μH)
4
1.5
2
SRN4012TA-6R8M
SRN4012TA-5R6M
6
4
4
DC Current(A)
8
3
0
0
2.8
2
SRN4012TA-4R7M
6.0
0
1
DC Current(A)
4
Inductance (μH)
Inductance (μH)
1.5
DC Current(A)
SRN4012TA-2R2M
Inductance (μH)
2.0
0
0
1
DC Current(A)
0.4
0.8
1.2
1.6
DC Current(A)
DC Current(A)
SRN4012TA-150M
0
0.3
0.6
DC Current(A)
SRN4012TA-220M
25
40
20
Inductance (μH)
Inductance (μH)
SRN4012TA-1R5M
SRN4012TA-1R0M
2.0
Inductance (μH)
Inductance (μH)
SRN4012TA-R47M
0.8
15
10
5
30
20
10
0
0
0
0.2
0.4
0.6
DC Current(A)
0.8
1.0
0
0.2
0.4
0.6
0.8
1.0
DC Current(A)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
SRP4012TA Series - Shielded Power Inductors
L vs. I Charts
SRP4012TA-8R2M
16
80
40
30
3
20
60
50
8
40
30
4
20
0
0.475
0.950
0
0
1.900
1.425
60
50
12
40
8
30
20
4
10
10
0
70
16
Inductance (μH)
6
12
Temperature Rise (°C)
50
Inductance (μH)
60
80
70
Temperature Rise (°C)
Inductance (μH)
9
SRP4012TA-100M
20
80
70
0.45
0
1.35
0.90
10
0
1.80
0
0
DC Current (A)
DC Current (A)
Temperature Rise (°C)
SRP4012TA-6R8M
12
0.3
0.6
1.2
0.9
0
1.5
DC Current (A)
Electrical Schematic
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
13.5 ± 0.5
(.531 ± .020)
DIA.
100.0 ± 2.0
(3.937 ± .079)
13.5 ± 0.5
DIA.
(.531 ± .020)
12.0 ± 0.5
(.472 ± .020)
1.75
(.069)
4.0
(.157)
2.0
(.079)
0.35 ± 0.05
(.014 ± .002)
1.5
DIA.
(.059)
5.0 ± 0.1
(.197 ± .004)
5.5 ± 0.1
(.217 ± .004)
Marking
USER DIRECTION OF FEED
Marking
8.0 ± 0.1
(.315 ± .004)
Marking
Marking
Marking
Marking
12.0 ± 0.3
(.472 ± .012)
3°
4.5 ± 0.1
(.177 ± .004)
1.5 ± 0.1
(.059 ± .004)
DIMENSIONS:
MM
(INCHES)
QTY: 4000 PCS. PER REEL
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
SRP4012TA Series - Shielded Power Inductors
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 09/17
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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