SRP6540 Datasheet, PDF (1/4 Pages) Bourns Electronic Solutions – Shielded Power Inductors

*RoHS**CHOAML&POLGIAENNTFREE
Features
■ Shielded construction
■ Iron powder core
■ High saturation current
■ Inductance range: 0.56 to 47 µH
■ Rated current up to 18 A
■ RoHS compliant* and halogen free**
Applications
■ DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Laptop computers
• Camcorders, HDTV, car audio systems
• Video game consoles
SRP6540 Series - Shielded Power Inductors
Electrical Specifications
Bourns Part No.
SRP6540-R56M
SRP6540-R68M
SRP6540-R82M
SRP6540-1R0M
SRP6540-1R5M
SRP6540-2R2M
SRP6540-3R3M
SRP6540-4R7M
SRP6540-5R6M
SRP6540-6R8M
SRP6540-8R2M
SRP6540-100M
SRP6540-150M
SRP6540-220M
SRP6540-270M
SRP6540-390M
SRP6540-470M
Inductance
L (μH) ±20 %
0.56
0.68
0.82
1.0
1.5
2.2
3.3
4.7
5.6
6.8
8.2
10
15
22
27
39
47
DCR
(mΩ) Max.
4.4
5.0
5.5
7.2
10.0
15.5
23.0
33.5
38.0
49.5
50.5
78.5
121
133
290
322
366
I rms
(A)
18
16.5
15
12
11
9
6.5
6
5.5
5
4.5
4
2.9
2.5
2
1.8
1.6
I sat
(A)
18
17
15
13.5
11
9
7
6.5
6
5.5
5
4
2.9
2.5
2
1.8
1.6
Soldering Profile
Temperature
Rising Area
+4.0 °C / sec. max.
Peak Temperature:
Time Above 245 °C:
Time Above 217 °C:
250 °C max.
30 sec. max.
60 ~ 150 sec. max.
Preheat Area
150~200 °C / 60~120 sec.
Reflow Area Forced Cooling Area
+3.0 °C / sec. max. -(1.0~5.0) °C / sec. max.
250
200
60 ~ 150 sec.
60 sec. max.
217 °C
150
60 ~ 120 sec.
100
50
0
50
100
150
200
250
Time (Seconds)
* 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.
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.
General Specifications
Test Voltage ..................................0.25 V
Test Frequency ......................... 100 KHz
Operating Temperature
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +125 °C
Resistance to Soldering Heat
............................. +250 °C for 10 sec.
Materials
Core.....................................Iron powder
Wire ............................Enameled copper
Terminal ....................................Cu/Ni/Sn
Rated Current .........Ind. drops 20 % typ.
at Isat
Temperature Rise ................... 40 °C typ.
at rated Irms
Packaging..... 1200 pcs. per 13-inch reel
Product Dimensions
7.20 ± 0.3
(.283 ± .012)
3.00 ± 0.3
(.118 ± .012)
6.50 ± 0.2
(.256 ± .008)
INDUCTANCE
CODE
MARKING
1.70 ± 0.5
4.00
(.157)
MAX.
(.067 ± .020)
Recommended Layout
3.70
(.146)
TYP.
3.40
(.134)
TYP.
7.40
(.291)
TYP.
DIMENSIONS:
MM
(INCHES)
Electrical Schematic