Features
■ Shielded construction
■ Inductance range: 1 to 47 µH
■ Heating current up to 5.1 A
■ AEC-Q200 qualified
■ RoHS compliant* and halogen free**
SRR4818A Series - Shielded Power Inductors
Operating Temp. ......... -40 °C to +150 °C
(Temperature rise included)
1
2
Inductance @
100 kHz/0.1 V
I rms
(A)
I rms
(A)
I sat
(A)
Typ.
SRF
(MHz)
Typ.
DCR (mΩ)
Bourns
Part Number
Storage Temperature .. -40 °C to +150 °C
Temperature Rise
L (μH) Tol. (%)
Typ.
Max.
Typ.
Typ.
1
SRR4818A-1R0Y
SRR4818A-1R5Y
SRR4818A-2R2Y
SRR4818A-3R3Y
SRR4818A-3R9Y
SRR4818A-4R7Y
SRR4818A-5R6Y
SRR4818A-6R8Y
SRR4818A-8R2Y
SRR4818A-100M
SRR4818A-120M
SRR4818A-150M
SRR4818A-180M
SRR4818A-220M
SRR4818A-270M
SRR4818A-330M
SRR4818A-390M
SRR4818A-470M
1.0
1.5
2.2
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
± 30
± 30
± 30
± 30
± 30
± 30
± 30
± 30
± 30
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
140
105
90
70
65
55
50
45
43
40
37
30
28
25
22
20
17
16
19.2
25.2
25.0
35.0
4.00
3.75
2.70
2.50
2.20
2.00
1.75
1.65
1.55
1.45
1.30
1.25
1.10
1.00
0.90
0.70
0.63
0.60
5.10
4.70
3.50
3.10
2.70
2.60
2.30
2.20
1.90
1.80
1.60
1.50
1.40
1.25
1.15
0.90
0.80
0.75
3.60
3.00
2.43
2.10
1.90
1.50
1.35
1.25
1.15
1.05
0.95
0.87
0.79
0.72
0.63
0.56
0.53
0.47
..................... 20 °C typ. at rated Irms
2
40 °C typ. at rated Irms
33.7
45.0
Rated Current
42.8
55.0
............ Inductance drops 35 % at Isat
Moisture Sensitivity Level.....................1
.................N/A
54.5
70.0
59.4
80.0
74.3
90.0
82.1
97.7
100.0
130.0
140.0
170.0
220.0
280.0
360.0
400.0
500.0
540.0
630.0
Materials
Core..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging......... 800 pcs. per 7-inch reel
109.8
132.2
176.7
214.8
280.3
317.6
399.1
439.3
504.1
Product Dimensions
4.80 ± 0.20
(.189 ± .008)
MARKED LINE
INDICATES
WINDING
STARTING
TERMINAL
4.80 ± 0.20
How to Order
Electrical Schematic
(.189 ± .008)
SRR4818A - 1R0Y
Model
Value Code (see table)
1.80 ± 0.20
(.071 ± .008)
Recommended Layout
1.98
4.20
(.078)
(.165)
1.60 ± 0.20
(.063 ± .008)
1.60 ± 0.20
(.063 ± .008)
1.17
(.046)
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
1.60 ± 0.20
(.063 ± .008)
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
1.98
(.078)
MM
(INCHES)
MM
(INCHES)
DIMENSIONS:
DIMENSIONS:
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
* 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.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov