Features
Applications
■ Shielded construction
■ Automotive systems:
- Driver assistant
- Information
■ Inductance range: 4.7 to 1000 µH
■ Heating current up to 8.2 A
■ AEC-Q200 qualified
- Entertainment
- Lighting
470
■ RoHS compliant* and halogen free**
■ DC/DC converters
■ Power supplies
SRR1280A Series - Shielded Power Inductors
Electrical Specifications @ 25 °C
General Specifications
Operating Temperature
Inductance
Bourns
Test
Freq.
(MHz)
SRF
(MHz)
Typ.
DCR
(mΩ)
Max.
Q
I rms
(A)
................................-40 °C to +125 °C
(Temperature rise included)
I sat
(A)
L
Tol.
Test Frequency/
Voltage
Part Number
(Ref.)
(µH) (%)
Storage Temperature
SRR1280A-4R7Y 4.7 ±±0
SRR1280A-6R8Y 6.8 ±±0
SRR1280A-8R2Y 8.2 ±±0
100 KHz/1 V
100 KHz/1 V
100 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
1 KHz/1 V
22
20
22
24
26
26
24
20
26
28
24
24
24
20
20
18
16
24
24
24
20
18
20
20
20
26
20
40
7.96
7.96
±0
22
20
17
15
1±
12
11
10
9.5
8.5
7.5
7
6.5
5
4.5
4.±
4.1
4
±.4
±.1
2.9
2.7
2.2
2
15.5
18.5
20.5
19.5
28.0
28.5
±5.0
±8.6
52.0
57.0
70.0
80.0
8.20 8.80
7.60 8.00
6.20 6.80
6.00 6.±0
5.60 6.00
5.20 5.00
4.80 4.60
4.±0 4.10
±.90 ±.70
±.50 ±.±0
±.20 ±.10
2.90 2.80
................................-40 °C to +125 °C
Resistance to Soldering Heat
.............................+245 °C for 10 sec.
Temperature Rise
7.96
SRR1280A-100M
SRR1280A-120M
SRR1280A-150M
SRR1280A-180M
SRR1280A-220M
SRR1280A-270M
SRR1280A-±±0M
SRR1280A-±90M
SRR1280A-470M
SRR1280A-560M
SRR1280A-680M
SRR1280A-820M
10 ±20
12 ±20
15 ±20
18 ±20
22 ±20
27 ±20
±± ±20
±9 ±20
47 ±20
56 ±20
68 ±20
82 ±20
2.52
......................40 °C typ. at rated I rms
Inductance Drop.......... 25 % typ. at I sat
2.52
2.52
2.52
Materials
2.52
Core..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging.................... 400 pcs. per reel
2.52
2.52
2.52
2.52
Product Dimensions
2.52
100.0 2.60 2.50
120.0 2.40 2.±0
1±0.0 2.±0 2.20
150.0 2.10 2.00
200.0 1.95 1.95
270.0 1.85 1.90
±00.0 1.75 1.88
400.0 1.60 1.70
450.0 1.20 1.60
600.0 1.10 1.40
680.0 1.00 1.40
880.0 0.90 1.25
960.0 0.80 1.15
1±00.0 0.75 0.97
1500.0 0.70 0.94
1700.0 0.68 0.80
2.52
12.5 0.3
(.492 .012)
2.52
SRR1280A-101M 100 ±20
SRR1280A-121K 120 ±10
SRR1280A-151K 150 ±10
SRR1280A-181K 180 ±10
SRR1280A-221K 220 ±10
SRR1280A-271K 270 ±10
SRR1280A-±±1K ±±0 ±10
SRR1280A-±91K ±90 ±10
SRR1280A-471K 470 ±10
SRR1280A-561K 560 ±10
SRR1280A-681K 680 ±10
SRR1280A-821K 820 ±10
SRR1280A-102K 1000 ±10
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
12.5 0.3
(.492 .012)
100
7.5 0.5
(.295 .020)
1.7
1.4
1.±
5.0 0.3
(.197 .012)
How to Order
Electrical Schematic
SRR1280A - 100M
7.0
TYP.
(.276)
Model
Value Code (see table)
Recommended Layout
5.4
2.9
(.213)
(.114)
6.8
(.268)
*
RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing definition of “halogen free” in the industry. 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.
2.9
(.114)
MM
DIMENSIONS:
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.
(INCHES)