Features
n Shielded construction
n Inductance range: 1 to 100 µH
n Heating current up to 3.6 A
n AEC-Q200 qualified
n RoHS compliant* and halogen free**
Applications
n Automotive systems:
- Driver assistant
- Infotainment
- Lighting
n DC/DC converters
n Power supplies
SRR3818A Series - Shielded Power Inductors
*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.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device
performance may vary over time.
Users should verify actual device performance in their specific applications.
Operating Temp. .......... -40 °C to +150 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +150 °C
Temperature Rise
..................... 20 °C typ. at rated Irms
1
40 °C typ. at rated Irms
2
Rated Current
............ Inductance drops 35 % at Isat
Moisture Sensitivity Level
..................... 1
ESD Classication (HBM).................N/A
Electrical Specications @ 25 °C General Specications
Core
..............................................Ferrite
Wire
............................Enameled copper
Terminal Finish
...................................Sn
Packaging
....... 1000 pcs. per 7-inch reel
Materials
Product Dimensions
DIMENSIONS:
MM
(INCHES)
Bourns
Part Number
Inductance @
100 kHz/0.1 V
SRF
(MHz)
Typ.
DCR (mW)
I rms
1
(A)
Typ.
I rms
2
(A)
Typ.
I sat
(A)
L (µH) Tol. (%) Typ. Max.
SRR3818A-1R0Y 1.0 ± 30 165 27.5 37 2.75 3.6 2.1
SRR3818A-1R5Y 1.5 ± 30 125 33 47 2.5 3.1 1.6
SRR3818A-2R2Y 2.2 ± 30 95 45.5 60 2 2.6 1.4
SRR3818A-2R7Y 2.7 ± 30 90 49.5 65 1.9 2.5 1.3
SRR3818A-3R3Y 3.3 ± 30 75 64.5 85 1.7 2.1 1.15
SRR3818A-3R9Y 3.9 ± 30 70 80 105 1.6 2 1.05
SRR3818A-4R7Y 4.7 ± 30 60 90 120 1.5 1.9 0.95
SRR3818A-6R8Y 6.8 ± 30 50 125 160 1.25 1.6 0.8
SRR3818A-100M 10 ± 20 40 180 235 1 1.3 0.65
SRR3818A-150M 15 ± 20 30 260 340 0.8 1.05 0.55
SRR3818A-220M 22 ± 20 25 395 500 0.65 0.8 0.43
SRR3818A-330M 33 ± 20 20 590 740 0.5 0.65 0.34
SRR3818A-470M 47 ± 20 15 825 1030 0.45 0.56 0.3
SRR3818A-680M 68 ± 20 13 1280 1600 0.38 0.46 0.24
SRR3818A-101M 100 ± 20 11 2040 2600 0.28 0.34 0.2
*RoHS COMPLIANT
& AEC APPROVED
*RoHS COMPLIANT
AEC APPROVED (Select Models)
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
3.80 ± 0.20
(.150 ± .008)
3.80 ± 0.20
(.150 ± .008)
1.80 ± 0.20
(.071 ± .008)
1.20 ± 0.20
(.047 ± .008)
1.30 ± 0.20
(.051 ± .008)
1.30 ± 0.20
(.051 ± .008)
Recommended Layout
Electrical Schematic
How to Order
SRR3818A - 1R0Y
Model
Value Code (see table)
4.30
(.169)
3.80 ± 0.20
(.150 ± .008)
3.80 ± 0.20
(.150 ± .008)
1.80 ± 0.20
(.071 ± .008)
1.20 ± 0.20
(.047 ± .008)
1.10
(.043)
1.30 ± 0.20
(.051 ± .008)
1.30 ± 0.20
(.051 ± .008)
1.60
(.063)
1.60
(.063)
DIMENSIONS:
MM
(INCHES)
