Features
Applications
nꢀ Shieldedꢀconstruction
nꢀ Automotiveꢀsystems:ꢀ
ꢀ
-ꢀꢀDriverꢀassistantꢀꢀꢀꢀꢀꢀ-ꢀꢀEntertainmentꢀ
-ꢀꢀInformationꢀ ꢀꢀꢀꢀꢀ-ꢀꢀLighting
nꢀꢀInductanceꢀrange:ꢀ10ꢀtoꢀ1000ꢀμH
nꢀꢀHeatingꢀcurrentꢀupꢀtoꢀ2.1ꢀA
nꢀꢀDimensions:ꢀ7.3ꢀxꢀ7.3ꢀxꢀ4.5ꢀmm
nꢀ AEC-Q200ꢀqualified
ꢀ
nꢀ DC/DCꢀconverters
nꢀ Powerꢀsupplies
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
ꢀ ꢀꢀ
SRR0745AꢀSeriesꢀ-ꢀShieldedꢀPowerꢀInductors
Electrical Specifications @ 25 °C
General Specifications
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Inductance
@ 1 kHz / 1 V
DCR
(W)
Max.
I rms
(A)
Bourns
Part Number
I sat
(A)
***K-
Factor
L (µH)
Tol. (%)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Solder Heat
.............................+250 °C for 10 sec.
Temperature Rise
.......................40 °C typ. at rated Irms
Inductance drop...................25 % at Isat
SRR0745A-100M
SRR0745A-120M
SRR0745A-150M
SRR0745A-180M
SRR0745A-220M
SRR0745A-270M
SRR0745A-330M
SRR0745A-390M
SRR0745A-470M
SRR0745A-560M
SRR0745A-680M
SRR0745A-820M
SRR0745A-101M
SRR0745A-121M
SRR0745A-151M
SRR0745A-181M
SRR0745A-221M
SRR0745A-271M
SRR0745A-331M
SRR0745A-391M
SRR0745A-471M
SRR0745A-561M
SRR0745A-681M
SRR0745A-821M
SRR0745A-102M
10
12
15
18
22
27
33
39
47
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
±20
0.052
0.062
0.075
0.09
0.096
0.13
0.15
0.19
0.21
0.24
0.3
2.1
2.0
1.9
2.5
2.3
2.1
1.95
1.75
1.62
1.45
1.3
1.2
1.1
0.96
0.9
0.78
0.7
0.58
0.54
0.5
0.46
0.4
0.36
0.34
0.3
0.28
0.26
0.24
112
98
88
83
72
66
59
55
50
47
41
38
34
32
29
26
23
22
20
18
16
15
13
12
11
1.8
1.65
1.45
1.35
1.17
1.05
0.95
0.86
0.78
0.7
Materials
56
68
82
Core..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging..................1000 pcs. per reel
0.4
100
120
150
180
220
270
330
390
470
560
680
820
1000
0.45
0.55
0.76
0.82
0.95
1.2
1.5
1.85
2.2
2.6
2.8
3.5
4.1
0.6
0.48
0.46
0.42
0.38
0.34
0.32
0.29
0.26
0.24
0.22
0.2
Product Dimensions
7.30 0.ꢀ
(.ꢀ87 .008ꢁ
7.30 0.ꢀ
(.ꢀ87 .008ꢁ
***K-Factor: To calculate core flux density, Bp-p (gauss) = K x L(µH) x Δ I (peak-to-peak ripple current,
A), determine core loss from Core Loss vs. Flux Density plot.
Core Loss vs. Flux Density
10000
4.60
(.181ꢁ
4.50 0.ꢀ
(.177 .008ꢁ
TYP.
ꢀ.00
(.079ꢁ
TYP.
1000
100
10
800 KHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
10 KHz
Recommended Layout
ꢀ.40
(.094ꢁ
1
0.1
1.50
1.50
(.059ꢁ
(.059ꢁ
4.80
(.189ꢁ
0.01
100
1000
10000
ꢀ
MM
(INCHES)
DIMENSIONS:
ꢀ
Flux Density Bp-p (gauss)
*ꢀ RoHSꢀDirectiveꢀ2002/95/ECꢀJan.ꢀ27,ꢀ2003ꢀincludingꢀannexꢀandꢀRoHSꢀRecastꢀ2011/65/EUꢀJuneꢀ8,ꢀ2011.ꢀ
**ꢀ Bournsꢀfollowsꢀtheꢀprevailingꢀdefinitionꢀofꢀ“halogenꢀfree”ꢀinꢀtheꢀindustry.ꢀꢀBournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀꢀ
ꢀꢀꢀꢀꢀꢀ(b)ꢀtheꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀandꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Theꢀdeviceꢀcharacteristicsꢀandꢀparametersꢀinꢀthisꢀdataꢀsheetꢀcanꢀandꢀdoꢀvaryꢀinꢀdifferentꢀapplicationsꢀandꢀactualꢀdeviceꢀperformanceꢀmayꢀvaryꢀoverꢀtime.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.