& *R
AE oH
C- S C
Q2 O
00 MP
QU LI
AL ANT
IF
IE
D
Features
■
Shielded construction
■
Inductance range: 10 to 1000
μH
■
Heating current up to 2.1 A
AP *Ro
PR HS
OV C
ED OM
(S P L
el IAN
ec T
tM
od
el
s)
■
Dimensions: 7.3 x 7.3 x 4.5 mm
■
AEC-Q200 qualified
■
RoHS compliant* and halogen free**
AE
C
SRR0745A Series - Shielded Power Inductors
Inductance
@ 1 kHz / 1 V
L (µH)
Tol. (%)
DCR
(Ω)
Max.
Bourns
Part Number
I rms
(A)
I sat
(A)
***K-
Factor
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
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
±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
0.4
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
2.1
2.0
1.9
1.8
1.65
1.45
1.35
1.17
1.05
0.95
0.86
0.78
0.7
0.6
0.48
0.46
0.42
0.38
0.34
0.32
0.29
0.26
0.24
0.22
0.2
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
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Solder Heat
............................. +250 °C for 10 sec.
Temperature Rise
.......................40 °C typ. at rated
I
rms
Inductance drop ...................25 % at Isat
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging .................. 1000 pcs. per reel
Product
7.30 ± 0.2
(.287 ± .008)
Dimensions
7.30 ± 0.2
(.287 ± .008)
7.30 ± 0.2
(.287 ± .008)
7.30 ± 0.2
(.287 ± .008)
Δ
I (peak-to-peak ripple current,
A), determine core loss from
Core Loss vs. Flux Density
plot.
Core Loss vs. Flux Density
10000
TYP.
4.60
(.181)
4.50 ± 0.2
(.177 ± .008)
4.50 ± 0.2
(.177 ± .008)
2.00
TYP.
(.079) TYP. 4.60
(.181)
2.00
TYP.
(.079)
1000
Core Loss (mW)
100
800 KHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
10 KHz
10
Recommended Layout
2.40
(.094)
2.40
(.094)
1.50
(.059)
1.50
(.059)
1.50
(.059)
1
0.1
4.80
(.189)
4.80
DIMENSIONS:
(.189)
0.01
100
1000
10000
1.50
(.059)
Flux Density Bp-p (gauss)
MM
(INCHES)
* 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.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
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.
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C1753 05/17/18R
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