Features
Applications
■ Shielded construction
■ Carbonyl powder core
■ High saturation current
■ Inductance range: 1 to 100 µH
■ AEC-Q200 qualified
■ Automotive systems:
- Driver assistant
- Information
- Entertainment
- Lighting
■ DC/DC converters
■ Power supplies
■ RoHS compliant* and halogen free**
SRP1770TA Series - Shielded Power Inductors
Electrical Specifications @ 25 °C
General Specifications
Operating Temperature
Inductance
@ 100 KHz
................................-40 °C to +150 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Rated Current
......... Inductance drops 20 % at Isat1,
30 % at Isat2
Temperature Rise.....40 °C at rated Irms
/ 1 V
Q (Min.)
SRF
DCR DCR
Irms
(A)
Bourns
Part Number
Tol. @100 KHz (MHz) (mΩ) (mΩ)
Isat1 Isat2 Terminal
L (μH) (%)
± 20
/ 1 V
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Typ.
35
30
22
17
15
12
11
10
8
7
5
4
4
3
3
2
2
Typ. Max.
(A)
60
52
(A)
70
65
62
54
50
45
39
31
29
27
23
20
18
16
15
13
12
Type
SRP1770TA-1R0M
SRP1770TA-1R5M
SRP1770TA-2R2M
SRP1770TA-3R3M
SRP1770TA-4R7M
SRP1770TA-5R6M
SRP1770TA-6R8M
SRP1770TA-8R2M
SRP1770TA-100M
SRP1770TA-150M
SRP1770TA-220M
SRP1770TA-330M
SRP1770TA-390M
SRP1770TA-470M
SRP1770TA-560M
SRP1770TA-680M
SRP1770TA-101M
1
1.6
2
2
2.5
52
47
1.5 ± 20
2.2 ± 20
3.3 ± 20
4.7 ± 20
5.6 ± 20
6.8 ± 20
8.2 ± 20
2.4
3.5
4.8
5.8
8.4
9.6
11.8
2.7 43.5 47
3.9
5.5
7.05
9.2
10.8
13
28
25
21
19
18
45
41
40
32
25
Materials
Core.............................Carbonyl powder
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging....... 300 pcs. per 13-inch reel
Lead
10
15
22
33
39
47
56
68
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
16.5 24
Frame
17.8 20.5 12.5 23
25.1 26.5 12 18
10.7 15
9.2 11
8.7 9.5
Product Dimensions
Lead Frame Terminal
38
40
44
48
48
55
17.6 0.ꢀ
(.693 .016)
54
62
7.8
7
5.3 6.5
9
8
68
80
16.9 0.3
(.666 .012)
100 ± 20
102
118
Soldering Profile
101
1510
Preheating
Soldering
Natural Cooling
T
(260 °C / 10 Sec. Max.)
P
0 ~+ 0.25
(0 ~+ .010)
t
(245 °C, 20~40 Sec.)
p
16.9 0.3
(.666 .012)
6.7 0.3
(.26ꢀ .012)
217 °C
2.1 0.3
(.083 .012)
200 °C
150°C
60~150 Sec.
2.3 0.3
(.091 .012)
60~180
Sec.
480 Sec. Max.
25
Time (Seconds)
Reflow Times: 3 Times Max.
11.9 0.3
(.ꢀ69 .012)
Schematic
How to Order
Recommended Layout
SRP1770TA - 220 M
18.5
Model
(.728)
Value Code (see table)
Tolerance Code
12.5
(.ꢀ92)
12.2
(.ꢀ80)
* 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.
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.
MM
(INCHES)
DIMENSIONS: