Features
Applications
nꢀ Shieldedꢀconstruction
nꢀꢀInductanceꢀrange:ꢀ1ꢀtoꢀ47ꢀµH
nꢀꢀHeatingꢀcurrentꢀupꢀtoꢀ5.1ꢀA
nꢀꢀAEC-Q200ꢀqualified
nꢀ Automotiveꢀsystems:ꢀ
ꢀ
ꢀ
ꢀ
-ꢀꢀDriverꢀassistantꢀ
-ꢀꢀInfotainmentꢀ
-ꢀꢀLighting
nꢀ DC/DCꢀconverters
nꢀ Powerꢀsupplies
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
SRR4818AꢀSeriesꢀ-ꢀShieldedꢀPowerꢀInductors
ꢀꢀ
ꢀ
Electrical Specifications @ 25 °C
General Specifications
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 (mW)
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
ESD Classification (HBM).................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)
1.60 0.20
(.063 .008)
1.98
(.078)
ꢀ
MM
(INCHES)
ꢀ
MM
(INCHES)
DIMENSIONS:
ꢀ
DIMENSIONS:
ꢀ
*RoHSꢀDirectiveꢀ2015/863,ꢀMarꢀ31,ꢀ2015ꢀandꢀAnnex.ꢀ
**Bournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀtheꢀꢀ
Chlorineꢀ(Cl)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀandꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Theꢀdeviceꢀcharacteristicsꢀandꢀparametersꢀinꢀthisꢀdataꢀsheetꢀcanꢀandꢀdoꢀvaryꢀinꢀdifferentꢀapplicationsꢀandꢀactualꢀdeviceꢀ
performanceꢀmayꢀvaryꢀoverꢀtime.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.