CO
M
G E & PL I
AN
N
FR
T*
EE
**
Features
■ Semi-shielded construction
LO
■ Rated current up to 7.8 A
HA
Ro
HS
■ Inductance range: 0.9 to 120 µH
■ RoHS compliant*
■ Halogen free**
SRN6028C Series – Semi-shielded Power Inductors
Electrical Specifications @ 25 °C
Additional Information
Click these links for more information:
L (μH)
Tol. %
Q
@ 100 kHz
/1V
Typ.
SRN6028C-R90Y
0.9
30
20
120
8.2
7.8
8.0
SRN6028C-1R0Y
1.0
30
15
110
10
5.2
5.75
SRN6028C-1R5Y
1.5
30
15
98
14
4.95
5.3
SRN6028C-2R2M
2.2
20
15
60
18
4.50
5.0
SRN6028C-3R0Y
3.0
30
15
57
22.5
3.9
4.5
SRN6028C-3R3M
3.3
20
15
56
24
3.6
4.3
SRN6028C-3R9M
3.9
20
15
54
28
3.3
3.9
SRN6028C-4R7M
4.7
20
15
50
30
3.1
3.2
SRN6028C-6R0M
6.0
20
15
45
42
2.8
3
SRN6028C-6R2M
6.2
20
15
45
42
2.8
3
SRN6028C-6R8M
6.8
20
15
40
47
2.5
2.85
SRN6028C-100M
10
20
15
30
65
2
2.1
SRN6028C-150M
15
20
15
25
98
1.8
2
SRN6028C-220M
22
20
15
22
138
1.5
1.6
SRN6028C-330M
33
20
15
16
200
1.3
1.4
SRN6028C-470M
47
20
15
13
280
1.06
1.15
SRN6028C-680M
68
20
15
10
420
0.81
1
SRN6028C-101M
100
20
15
8
605
0.72
0.8
SRN6028C-121M
120
20
20
7
750
0.68
0.72
Inductance
@ 100 kHz / 1 V
Bourns Part No.
SRF
(MHz)
Typ.
DCR
(mΩ)
± 20 %
Irms
(A)
Typ.
Isat
(A)
Typ.
Product Dimensions
PRODUCT TECHNICAL INVENTORY SAMPLES
SELECTOR LIBRARY
CONTACT
General Specifications
Operating Temperature
.................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature
(Component on board)
...................................... -40 °C to +125 °C
Temperature Rise ... 40 °C at rated Irms1
Rated Current
............. Inductance drops 30 % at Isat
Moisture Sensitivity Level ......................1
ESD Classification (HBM).................. N/A
1 Circuit design, component, PCB trace size and
thickness, airflow and other cooling provisions all
affect the part temperature. Users should verify
part temperature in their end applications.
Materials
Core .............................................. Ferrite
Wire .............................Enameled copper
Terminal Finish ..........................Ag/Ni/Sn
Coating ............................ Magnetic resin
Packaging ...... 1500 pcs. per 13-inch reel
How to Order
6.0 ± 0.2
(.236 ± .008)
2.6 ± 0.2
(.102 ± .008)
5.8 ± 0.3
(.228 ± .012)
SRN6028C - R90Y
Model
6.0 ± 0.2
(.236 ± .008)
1R0
Value Code (see table)
TOP VIEW
1.6 ± 0.3
(.063 ± .012)
Recommended Layout
6.5
(.256)
SIDE VIEW
Note: Top and side view dimensions do not include termination.
For maximum overall dimensions including termination, add 0.1 mm.
BOTTOM VIEW
DIMENSIONS:
6.5
(.256)
MM
(INCHES)
2.5
(.098)
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
**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.
Electrical Schematic
SRN6028C Series – Semi-shielded Power Inductors
Soldering Profile
< 30 Sec.
250
TC -5 °C
Temperature (°C)
MAX. RAMP UP RATE = 3 °C/SEC.
MAX. RAMP DOWN RATE = 6 °C/SEC.
217
60~150
Sec.
PREHEAT AREA
200 °C
150°C
Pb Free Assembly
Preheat
- Temperature Min. (Tsmin)
- Temperature Max. (Tsmax)
- Time(ts) from Tsmin to Tsmax
Ramp-up Rate (TL to Tp)
150 °C
200 °C
60-120 seconds
3 °C/second max.
Liquidous temperature (TL)
Time (tL) maintained above TL
Peak package body temperature (Tp)
60~120
Sec.
25
Profile Feature
Time 25 °C to Peak
8 Minutes Max.
Time (Seconds)
217 °C
60-150 seconds
250 °C
Time within 5 °C of Actual Peak Temperature
(tp)
Ramp-Down Rate (Tp to TL)
< 30 seconds
Time 25 °C to Peak Temperature
8 minutes max.
6 °C/second max.
REFLOW TIMES: 3 TIMES MAX.
L vs. I Charts
20
0
7.2
0
0
0
9.0
1.3
DC Current (A)
80
1.80
60
1.20
40
0.60
20
0
3.5
4.6
Inductance (μH)
2.40
2.3
3.20
80
2.40
60
1.60
40
0.80
20
0
60
2.00
40
1.00
20
3.5
0
4.4
Inductance (μH)
80
3.00
Temperature Rise (°C)
Inductance (μH)
1.2
1.0
2.0
3.1
4.1
80
3.60
60
2.40
40
1.20
20
2.2
DC Current (A)
0
5.9
3.20
80
2.40
60
1.60
40
0.80
20
1.0
2.0
2.9
3.9
0
4.9
SRN6028C-6R0M
4.80
1.4
4.8
DC Current (A)
100
0.7
3.6
100
0
0
0
5.1
6.00
0
0
2.4
4.00
SRN6028C-4R7M
4.00
DC Current (A)
20
DC Current (A)
100
2.6
40
0.40
SRN6028C-3R3M
100
SRN6028C-3R9M
1.8
0.80
DC Current (A)
0
0
5.8
5.00
0.9
60
0
0
0
6.5
4.00
DC Current (A)
0
0
5.2
80
1.20
SRN6028C-3R0Y
100
Temperature Rise (°C)
Inductance (μH)
SRN6028C-2R2M
1.2
3.9
1.60
DC Current (A)
3.00
0
2.6
Inductance (μH)
5.4
20
2.9
0
3.6
Inductance (μH)
3.6
40
0.24
Temperature Rise (°C)
1.8
0.48
Temperature Rise (°C)
0
60
Temperature Rise (°C)
40
0.24
80
0.72
100
Temperature Rise (°C)
0.48
0.96
2.00
8.00
100
6.40
80
4.80
60
3.20
40
1.60
20
0
0
0.68
1.37
2.05
2.74
Temperature Rise (°C)
60
100
Inductance (μH)
80
0.72
SRN6028C-1R5Y
1.20
Temperature Rise (°C)
0.96
Inductance (μH)
SRN6028C-1R0Y
100
Temperature Rise (°C)
Inductance (μH)
SRN6028C-R90Y
1.20
0
3.42
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 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.
SRN6028C Series – Semi-shielded Power Inductors
L vs. I Charts (continued)
40
1.60
20
0
2.74
20
0
0
0
3.42
0.65
DC Current (A)
SRN6028C-150M
60
8.00
40
4.00
20
0
1.38
1.84
Inductance (μH)
80
12.00
Temperature Rise (°C)
Inductance (μH)
16.00
0.92
64
15.00
48
10.00
32
5.00
16
0
0.36
0.72
1.08
1.44
16
0.47
60
24.00
40
12.00
20
0
1.04
Inductance (μH)
80
36.00
80
51.00
60
34.00
40
17.00
20
0.24
0.48
0.72
DC Current (A)
0
2.34
100
32.00
80
24.00
60
16.00
40
8.00
20
0
0.32
0.65
0.97
1.30
0
1.62
SRN6028C-101M
68.00
0
1.87
0
0
1.80
100
0
0
1.30
DC Current (A)
1.40
40.00
SRN6028C-680M
48.00
0.94
DC Current (A)
85.00
Temperature Rise (°C)
Inductance (μH)
32
2.40
SRN6028C-330M
0
0
2.30
100
0.78
4.80
DC Current (A)
20.00
SRN6028C-470M
0.52
48
DC Current (A)
60.00
0.26
7.20
0
0
0
3.24
80
DC Current (A)
0
2.59
25.00
100
0.46
1.94
64
SRN6028C-220M
20.00
0
1.30
80
9.60
DC Current (A)
Inductance (μH)
2.05
40
1.60
0.96
0
1.20
120.00
80
96.00
64
72.00
48
48.00
32
24.00
16
Inductance (μH)
1.37
3.20
Temperature Rise (°C)
0.68
60
Temperature Rise (°C)
0
4.80
12.00
Temperature Rise (°C)
3.20
80
Inductance (μH)
60
6.40
Temperature Rise (°C)
4.80
Inductance (μH)
80
Temperature Rise (°C)
Inductance (μH)
6.40
SRN6028C-100M
100
Temperature Rise (°C)
SRN6028C-6R8M
8.00
100
0
0
0.2
0.4
0.5
0.7
Temperature Rise (°C)
SRN6028C-6R2M
8.00
0
0.9
DC Current (A)
64
90.00
48
60.00
32
30.00
16
Inductance (μH)
80
120.00
0
0
0.2
0.3
0.5
0.6
Temperature Rise (°C)
SRN6028C-121M
150.00
0
0.8
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 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.
SRN6028C Series – Semi-shielded Power Inductors
Packaging Specifications
16.4 +2/-0
(.646 +.079/-0)
330 ± 3.0
(12.992 ± .118)
80 ± 2.0
(3.150 ± .079)
13 +0.5/-0.2
(.512 +.020/-.008)
4.0 ± 0.1
(.157 ± .004)
1.75 ± 0.1
(.069 ± .004)
2.00 ± 0.1
(.079 ± .004)
1.5 ± 0.1
DIA.
(.059 ± .004)
6.4 ± 0.1
(.252 ± .004)
7.5 ± 0.1
(.295 ± .004)
12.0 ± 0.1
(.472 ± .004)
1R0
1R0
1R0
1R0
16.0 ± 0.3
(.630 ± .012)
0.4 ± 0.1
(.016 ± .004)
3.0 ± 0.1
(.118 ± .004)
6.4 ± 0.1
(.252 ± .004)
USER DIRECTION OF FEED
QTY: 1,500 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 04/23
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.
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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