PL
IA
N
Features
■
Semi-shielded construction
Applications
■
DC/DC converters
■
Notebook computers
■
Digital video cameras
■
HDDs
■
Cell phones
■
Televisions, LCD displays
CO
M
T
4R7
*R
oH
S
■
Miniature size
■
Low profile - 1.8 mm max.
■
Inductance range: 0.82 to 220 µH
■
High rated current - up to 4.0 A
■
RoHS compliant* and halogen free**
SRN4018 Series - Semi-shielded Power Inductors
Operating Temperature
................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature (Component)
................................. -40 °C to +125 °C
Resistance to Solder Heat
...............................+260 °C for 10 sec.
Temperature Rise .....40 °C at rated Irms
Rated Current
............ Inductance drops 30 % at Isat
Moisture Sensitivity Level .....................1
................. N/A
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ........................Sn/Ag/Cu
Coating .................Magnetic epoxy resin
Packaging ..... 3000 pcs. per 13-inch reel
How to Order
Inductance
@ 100 KHz/1 V
Bourns Part No.
SRN4018-R82Y
SRN4018-1R0Y
SRN4018-1R2Y
SRN4018-1R5Y
SRN4018-2R2M
SRN4018-2R7M
SRN4018-3R3M
SRN4018-4R7M
SRN4018-6R8M
SRN4018-100M
SRN4018-150M
SRN4018-220M
SRN4018-330M
SRN4018-470M
SRN4018-680M
SRN4018-101M
SRN4018-151M
SRN4018-221M
SRN4018-331M
L (μH)
Tol. %
Q
(Ref.)
Test
Freq.
(MHz)
SRF
(MHz)
Typ.
DCR
(Ω)
Max.
Irms
(A)
Isat
(A)
0.82
1.0
1.2
1.5
2.2
2.7
3.3
4.7
6.8
10
15
22
33
47
68
100
150
220
330
30
30
30
30
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9
9
9
9
9
9
9
9
9
11
11
11
11
11
11
23
23
30
30
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
0.796
0.796
0.796
0.796
100
90
80
70
60
52
45
35
30
25
18
15
12
10
8
6
5
3
6
0.019
0.023
0.025
0.032
0.044
0.052
0.066
0.084
0.118
0.180
0.264
0.348
0.552
0.780
1.128
1.596
2.400
3.552
6.36
4.0
3.7
3.5
3.1
2.9
2.3
2.2
1.9
1.5
1.3
1.0
0.9
0.7
0.6
0.5
0.42
0.32
0.28
0.2
4.7
4.2
4.0
3.5
3.0
2.4
2.3
2.0
1.6
1.4
1.1
0.95
0.75
0.62
0.50
0.45
0.35
0.30
0.21
SRN4018 - 100M
Model
Value Code (see table)
Electrical Schematic
Recommended Layout
4.55
(.179)
Product Dimensions
4.0 ± 0.2
(.157 ± .008)
4R7
3.6
(.142)
4.0 ± 0.2
(.157 ± .008)
1.5
(.059)
1.5
(.059)
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
DIMENSIONS:
MM
(INCHES)
1.8
(.071)
MAX.
SRF0504 Series -- Line Filter
SRN4018 Series Semi-shielded Power Inductors
Temperature
Rising Area
+4.0 °C/Sec. Max.
Preheat
Area
150~200 °C / 60~120 Sec.
Reflow
Area
+3.0 °C/Sec. Max.
Forced
Cooling Area
-(1.0~5.0) °C/Sec. Max.
250
Peak Temperature: 260 °C
217 °C
Temperature (°C)
200
150
100
50
60~120 Sec.
60~150 Sec.
60 Sec.
Max.
Reflow
Peak Temp.
Max. Peak Temp. -5
30 sec. max.
Max. Time Above 217
60~150 sec. max.
:
0
50
100
150
200
250
Time (Seconds)
330
DIA.
(12.992)
2.0
±
0.5
(.079
±
.020)
17.2
(.677)
13.5 ± 0.5
(.531 ± .020)
DIA.
99.5
(3.917)
21.0
±
0.8
(.827
±
.031)
13.5 ± 0.5
DIA.
(.531 ± .020)
12.6
(.496)
4.0
(.157)
0.3
(.012)
2.0 ± 0.05
(.079 ± .002)
1.5 +0.1/-0.0
DIA.
(.059 +.004/-.000)
1.75
(.069)
5.5
(.217)
4R7
4R7
12.0
(.472)
1.5
(.059)
4.35
(.171)
1.9
(.075)
4.5
(.177)
NO COMPONENT
8.0
(.315)
DIA.
NO COMPONENT
COMPONENTS
200
(7.874)
400
(15.748)
USER DIRECTION OF FEED
DIMENSIONS:
QTY: 3000 PCS. PER REEL
REV. 11/17
MM
(INCHES)
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
Unless otherwise expressly indicated in writing, Bourns
®
products and data sheets relating thereto are subject to change
and complete before placing orders for Bourns
®
products.
The characteristics and parameters of a Bourns
®
product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns
®
®
product with other components
the actual performance of the Bourns
®
®
®
product as meeting the requirements of a particular industry
®
of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
®
Bourns
®
on a case-by-case basis, use of any Bourns
®
®
®
®
®
Bourns
®
®
standard products that are suitable for use in aircraft
®
standard
the user’s sole risk.
®
and the user for which such Bourns
®
®
custom products shall be negotiated on a case-by-case basis by Bourns
®
also apply to such Bourns custom products.
Users shall not sell, transfer, export or re-export any Bourns
®
Bourns
®
standard products shall
products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns
®
products may not, without
®
bilingual versions are available at:
Web Page:
http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF:
http://www.bourns.com/docs/Legal/disclaimer.pdf
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bourns
:
SRN4018-101M SRN4018-221M SRN4018-330M SRN4018-1R2Y SRN4018-R82Y SRN4018-680M SRN4018-
220M SRN4018-4R7M SRN4018-470M SRN4018-6R8M SRN4018-1R5Y SRN4018-3R3M SRN4018-1R0Y
SRN4018-150M SRN4018-2R2M SRN4018-151M SRN4018-2R7M SRN4018-100M SRN4018A-100M SRN4018A-
101M SRN4018A-150M SRN4018A-220M SRN4018A-330M SRN4018A-470M SRN4018A-4R7M SRN4018A-6R8M
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