Datasheet

Features
■ Shielded construction
■ Metal alloy powder core
■ High saturation current
■ Low buzz noise
■ Flat wire
■ AEC-Q200 compliant
■ RoHS compliant* and halogen free**
SRP4018FA Series – Shielded Power Inductors
Operating Temperature
................................-55 °C to +155 °C
(Temperature rise included)
Storage Temperature (Component)
................................-55 °C to +155 °C
Rated Current
Inductance drops 10, 20 or 30 % at Isat
Temperature Rise
................... 20 or 40 °C at rated Irms
1
MSL ......................................................1
ESD Classification (HBM).................N/A
Note 1: Circuit design, component, PCB trace size and
thickness, airflow and other cooling provisions all can
affect the part temperature. Part temperature should be
verified in the end application.
Electrical Specifications @ 25 °C
General Specifications
Core ..........................Metal alloy powder
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging ..... 3000 pcs. per 13-inch reel
Materials
Typical Part Marking
* 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
R68
YYWW
INDUCTANCE
CODE
DATE CODE:
YY = LAST TWO DIGITS OF YEAR
WW = WEEK NUMBER
1R0
1933
*RoHS COMPLIANT,
**HALOGEN FREE &
AEC-Q200 COMPLIANT
Bourns
Part Number
Inductance
@ 100 kHz / 0.1 V
Q
Min.
@ 100
kHz
SRF
(MHz)
Typ.
DCR
(mΩ)
Typ.
DCR
(mΩ)
Max.
I rms (A)
Typ.
I sat (A)
Typ.
L (μH) Tol. %
20 °C
Temp. Rise
40 °C
Temp. Rise
10 % L
Drop
20 % L
Drop
30 % L
Drop
SRP4018FA-R33M 0.33 ± 20 % 15 92 4.7 5.2 11 15 8.0 11.5 15
SRP4018FA-R47M 0.47 ± 20 % 15 90 6.0 6.8 9.8 13.2 7.0 10.0 14
SRP4018FA-R60M 0.60 ± 20 % 15 85 6.9 7.8 9.4 12.4 5.8 8.8 12.8
SRP4018FA-R68M 0.68 ± 20 % 15 73 7.3 8.2 9.2 12 5.2 8.0 11.6
SRP4018FA-R82M 0.82 ± 20 % 15 62 8.6 9.5 8.5 11.5 4.8 6.5 10.2
SRP4018FA-1R0M 1.00 ± 20 % 15 56 10.6 11.7 8.0 11 4.5 5.4 9.2
SRP4018FA-1R2M 1.20 ± 20 % 15 53 12.2 13.4 7.2 9.5 4.3 5.0 8.6
R68
1933
4.1 ± 0.2
(.161 ± .008)
3.4 ± 0.3
(.134 ± .012)
1.8 ± 0.2
(.071 ± .008)
0.88 ± 0.2
(.035 ± .008)
4.1 ± 0.2
(.161 ± .008)
1.6 ± 0.25
(.063 ± .010)
Product Dimensions
DIMENSIONS:
MM
INCHES
How to Order
SRP4018FA - 1R0M
Model
Value Code (see table)
Schematic
3.8
(.150)
REF.
REF.
REF.
3.4
(.134)
1.4
(.055)
Recommended Layout