*R
AE **H oHS
C- AL C
Q2 O O
00 GE MP
CO N F LIA
M RE NT
PL E ,
IA &
NT
Features
■ Shielded construction
■ Inductance range: 1.2 to 390 µH
■ Heating current up to 4.8 A
■ AEC-Q200 compliant
■ RoHS compliant* and halogen free**
SRR4528A Series – Shielded Power Inductors
Inductance
@ 100 kHz / 0.1 V
DCR
(mΩ)
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Temperature Rise ................... 40 °C typ.
at rated Irms
Inductance Drop ........... 35 % typ. at Isat
MSL ......................................................1
................. N/A
L (μH)
Tol. %
SRF
(MHz)
Typ.
SRR4528A-1R2Y
1.2
± 30 %
82.0
12.3
17.0
4.82
3.04
SRR4528A-1R8Y
1.8
± 30 %
78.0
14.3
20.0
4.20
2.50
SRR4528A-2R2Y
2.2
± 30 %
76.0
17.4
23.0
3.78
2.32
SRR4528A-2R7Y
2.7
± 30 %
68.0
19.1
29.0
3.40
2.10
SRR4528A-3R3Y
3.3
± 30 %
60.0
25.6
35.0
2.93
1.82
SRR4528A-3R9Y
3.9
± 30 %
58.0
28.2
37.0
2.80
1.70
SRR4528A-4R7Y
4.7
± 30 %
54.0
29.8
40.0
2.63
1.58
SRR4528A-5R6Y
5.6
± 30 %
50.0
34.9
47.0
2.39
1.49
SRR4528A-6R8Y
6.8
± 30 %
45.0
43.2
58.0
2.25
1.37
SRR4528A-7R4Y
7.4
± 30 %
42.0
46.7
63.0
2.16
1.28
SRR4528A-8R2Y
8.2
± 30 %
38.0
51.5
70.0
2.12
1.22
SRR4528A-100M
10.0
± 20 %
35.0
64.9
88.0
1.76
1.13
SRR4528A-120M
12.0
± 20 %
28.0
74.2
100.0
1.62
0.99
SRR4528A-150M
15.0
± 20 %
24.0
87.9
119.0
1.42
0.90
SRR4528A-180M
18.0
± 20 %
23.0
104.0
136.0
1.28
0.85
Model
SRR4528A-220M
22.0
± 20 %
21.0
138.0
179.0
1.10
0.72
Value Code (see table)
SRR4528A-270M
27.0
± 20 %
20.0
152.0
197.0
1.06
0.68
SRR4528A-330M
33.0
± 20 %
18.0
184.0
239.0
0.95
0.59
SRR4528A-390M
39.0
± 20 %
16.0
218.0
272.0
0.90
0.57
SRR4528A-470M
47.0
± 20 %
15.0
240.0
300.0
0.86
0.52
SRR4528A-560M
56.0
± 20 %
14.0
278.0
348.0
0.81
0.45
SRR4528A-680M
68.0
± 20 %
12.0
361.0
452.0
0.70
0.41
SRR4528A-820M
82.0
± 20 %
11.0
442.0
552.0
0.59
0.39
SRR4528A-101M
100.0
± 20 %
10.0
487.0
609.0
0.56
0.34
SRR4528A-121M
120.0
± 20 %
9.0
547.0
700.0
0.53
0.30
SRR4528A-151M
150.0
± 20 %
8.5
724.0
905.0
0.48
0.29
SRR4528A-181M
180.0
± 20 %
7.0
903.0
1128.0
0.43
0.26
SRR4528A-221M
220.0
± 20 %
6.0
1184.0 1480.0
0.37
0.23
SRR4528A-271M
270.0
± 20 %
5.0
1290.0 1612.0
0.34
0.19
SRR4528A-331M
330.0
± 20 %
4.5
1730.0 2160.0
0.32
0.18
SRR4528A-391M
390.0
± 20 %
4.0
1910.0 2380.0
0.28
0.17
Bourns
Part Number
Typ.
Max.
I rms (A)
Typ.
I sat (A)
Typ.
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging ......... 500 pcs. per 7-inch reel
How to Order
SRP4528A - 1R2Y
Schematic
EMEA:
The Americas:
www.bourns.com
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 his document, and at www.bourns.com/docs/legal/disclaimer.pdf
SRR4528A Series – Shielded Power Inductors
Product Dimensions
Recommended Layout
5.00
MAX.
(.197)
100
2.00
(.079)
2.10
TYP.
(.083)
5.00
MAX.
(.197)
4.20
(.165)
5.20
(.205)
TY
20
6. 44)
(.2
1.60
(.063)
P.
DIMENSIONS:
2.80
MAX.
(.110)
DIMENSIONS:
MM
(INCHES)
MM
(INCHES)
Peak Temperature 260
max.
Max. Peak Temperature -5
30 sec. max.
Max. Time Above 217 : 60~150 sec. max.
Temperature
Rising Area
Preheat
Area
Reflow
Area
Forced
Cooling Area
+4.0 °C/Sec. Max.
150~200 °C / 60~120 Sec.
+3.0 °C/Sec. Max.
-(1.0~5.0) °C/Sec. Max.
Peak Temperature: 260 °C
Temperature (°C)
250
217 °C
60~150 Sec.
200
60 Sec.
Max.
150
60~120 Sec.
100
50
0
50
100
150
200
250
Time (Seconds)
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.
SRR4528A Series – Shielded Power Inductors
Inductance vs. Current and Temperature Rise vs. Current
SRR4528A-4R7Y
SRR4528A-4R7Y
120 %
100.0
80.0
L @ 25 °C
T (°C)
L/LOA
90 %
60 %
L @ 125 °C
60.0
T @ 25 °C
40.0
30 %
20.0
0%
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
1.00
2.00
3.00
4.00
5.00
1.52
1.90
1.04
1.30
IDC (A)
IDC (A)
SRR4528A-220M
SRR4528A-220M
120 %
70.0
60.0
90 %
50.0
T (°C)
L/LOA
L @ 25 °C
L @ 125 °C
60 %
40.0
T @ 25 °C
30.0
20.0
30 %
10.0
0%
0
0
0.2
0.4
0.6
0.8
1.0
1.2
0
0.38
0.76
1.14
IDC (A)
IDC (A)
SRR4528A-470M
SRR4528A-470M
80.0
120 %
L @ 25 °C
60.0
60 %
T (°C)
L/LOA
90 %
L @ 125 °C
40.0
T @ 25 °C
30 %
20.0
0%
0
0
0.2
0.4
0.6
0.8
0
0.26
IDC (A)
0.78
IDC (A)
SRR4528A-391M
SRR4528A-391M
80.0
120 %
60.0
90 %
T (°C)
L @ 25 °C
L/LOA
0.52
60 %
40.0
T @ 25 °C
L @ 125 °C
30 %
20.0
0
0%
0
0.05
0.10
0.15
IDC (A)
0.20
0.25
0.30
0
0.11
0.22
0.33
0.44
IDC (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.
SRR4528A Series – Shielded Power Inductors
178
DIA.
(7.008)
16.5
(.650)
2.0 ± 0.5
(.079 ± .020)
13
(.512)
DIA.
50 -0
(1.969 -0)
178
(7.008)
21.0 ± 0.8
DIA.
(.827 ± .031)
12
(.472)
14 +0
(.551 +0)
4.0
(.157)
8.0
(.315)
12
(.472)
100
NO COMPONENT
100
100
COMPONENTS
DIMENSIONS:
MM
(INCHES)
NO COMPONENT
400
(15.748)
200
(7.874)
USER DIRECTION OF FEED
QTY: 500 PCS PER REEL
REV. 06/18/18
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
P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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