5
7.20 ± 0.3
(.283 ± .012)
1.70 ± 0.5
(.067 ± .020)
3.00 ± 0.3
(.118 ± .012)
3.40
(.134) TYP.
4.00
(.157) MAX.
3.70
(.146)
TYP.
7.40
(.291)
TYP.
6.50 ± 0.2
(.256 ± .008)
INDUCTANCE
CODE
MARKING
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 Specifi cations
Product Dimensions
DIMENSIONS: MM
(INCHES)
Recommended Layout
Soldering Profi le
250
Temperature (°C)
050
50
200
150
100
+4.0 °C / sec. max. 150~200 °C / 60~120 sec. +3.0 °C / sec. max. -(1.0~5.0) °C / sec. max.
Temperature
Rising Area Preheat Area Reflow Area Forced Cooling Area
200
Time (Seconds)
100 150
60 ~ 150 sec.
60 sec. max.
217 °C
60 ~ 120 sec.
250
Electrical Schematic
General Specifi cations
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
Bourns Part No.
Inductance
L (μH) ±20 %
DCR
(mΩ) Max.
I rms
(A)
I sat
(A)
SRP6540-R56M 0.56 4.4 18 18
SRP6540-R68M 0.68 5.0 16.5 17
SRP6540-R82M 0.82 5.5 15 15
SRP6540-1R0M 1.0 7.2 12 13.5
SRP6540-1R5M 1.5 10.0 11 11
SRP6540-2R2M 2.2 15.5 9 9
SRP6540-3R3M 3.3 23.0 6.5 7
SRP6540-4R7M 4.7 33.5 6 6.5
SRP6540-5R6M 5.6 38.0 5.5 6
SRP6540-6R8M 6.8 49.5 5 5.5
SRP6540-8R2M 8.2 50.5 4.5 5
SRP6540-100M 10 78.5 4 4
SRP6540-150M 15 121 2.9 2.9
SRP6540-220M 22 133 2.5 2.5
SRP6540-270M 27 290 2 2
SRP6540-390M 39 322 1.8 1.8
SRP6540-470M 47 366 1.6 1.6
Peak Temperature: 250 °C max.
Time Above 245 °C: 30 sec. max.
Time Above 217 °C: 60 ~ 150 sec. max.
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing defi nition 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.
Specifi cations 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 specifi c applications.
*RoHS COMPLIANT
&
**HALOGEN FREE
SRP6540 Series - Shielded Power Inductors
Specifi cations 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 specifi c applications.
L vs. I Charts
0.0 2.0 4.0 6.0 8.0 10.0 12.00.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0
0.0 2.0 4.0 6.0 8.0 0.0 2.0 4.0 6.0 6.08.0 0.0 2.0 4.0
L ( µH )
L ( µH )
L ( µH )
L ( µH )
L ( µH )
L ( µH )
L@ 25 °C L@ 25 °C L@ 25 °C
L@ 25 °C
L@ 25 °C L@ 25 °C
L@ 25 °C L@ 25 °C
0.0
0.2
0.4
0.6
0.8
1.0
IDC (A)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
IDC (A)
0.0
0.4
0.8
1.2
1.6
2.0
2.4
IDC (A)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IDC (A)
0.0
1.0
2.0
3.0
4.0
5.0
IDC (A)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
IDC (A)
SRP6540-1R0M
SRP6540-3R3M
SRP6540-2R2M
SRP6540-1R5M
SRP6540-5R6M
SRP6540-4R7M
0.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0
L@ 25 °C
0.0 5.0 10.0 15.0 20.0 25.0 30.0
0.2
0.4
0.6
SRP6540-R56M
L ( µH )
0.0
20.0
10.0
40.0
30.0
50.0
0.0
20.0
10.0
40.0
30.0
50.0
0.0
20.0
10.0
40.0
30.0
50.0
IDC (A)
0.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0
0.2
0.8
0.6
0.5
0.3
0.9
SRP6540-R82M
L ( µH )
IDC (A)
0.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
0.2
0.6
0.4
0.8
SRP6540-R68M
L ( µH )
IDC (A)
ႤT (°C)
ႤT (°C)
ႤT (°C)
T@ 25 °C
ႤT@ 25 °C
ႤT@ 25 °C
Ⴄ
T@ 25 °C
Ⴄ
T@ 25 °C
ႤT@ 25 °C
ႤT@ 25 °C
Ⴄ
T@ 25 °C
ႤT@ 25 °C
Ⴄ
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
ႤT (°C)
ႤT (°C)
ႤT (°C)
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0
0.0 2.0 4.0 6.0 8.0 10.0 14.012.0 16.0
0.0 5.0 10.0 15.0 20.0 25.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0
ႤT (°C)
ႤT (°C)
ႤT (°C)
Specifi cations 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 specifi c applications.
3312 - 2 mm SMD Trimming Potentiometer SRP6540 Series - Shielded Power Inductors
L vs. I Charts
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
0.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
27.0
30.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
0.0
10.0
20.0
30.0
40.0
50.0
SRP6540-150M
SRP6540-390M
SRP6540-270M
SRP6540-220M
SRP6540-470M
0.0 1.0 2.0 3.0 4.0 5.0 0.0 1.0 2.0 3.0 4.0 5.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
L ( µH )
L ( µH )
L ( µH ) L ( µH )
L ( µH ) L ( µH )
L ( µH )
L ( µH )
L@ 25 °C L@ 25 °C
L@ 25 °C
L@ 25 °C
L@ 25 °C
L@ 25 °C L@ 25 °C L@ 25 °C
IDC (A) IDC (A)
IDC (A)
IDC (A)
IDC (A)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0.0 2.0 4.0 6.0
IDC (A)
0.0
2.0
4.0
6.0
8.0
10.0
0.0 2.0 4.0 6.0 0.0 1.0 2.0 3.0 4.0 5.0
IDC (A)
0.0
2.0
4.0
6.0
8.0
10.0
IDC (A)
SRP6540-6R8M SRP6540-8R2M SRP6540-100M
T
(C)
T@ 25 °C
ႤT@ 25 °C
ႤT@ 25 °C
Ⴄ
T@ 25 °C
ႤT@ 25 °C
ႤT@ 25 °C
Ⴄ
T@ 25 °C
ႤT@ 25 °C
Ⴄ
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
50.0 50.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
0.0
10.0
20.0
30.0
40.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0
10.0
20.0
30.0
40.0
50.0
0.0 2.0 4.0 6.0 8.0 10.0 12.00.0 2.0 4.0 6.0 8.0 10.0 12.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0
ႤT (°C)
ႤT (°C)
ႤT (°C)
ႤT (°C)
ႤT (°C)
ႤT (°C)
ႤT (°C)
ႤT (°C)
SRP6540 Series - Shielded Power Inductors
Packaging Specifi cations
EMBOSSED
CARRIER
EMBOSSED
CAVITY
16.0
(.630)
CARRIER TAPE WIDTH
DIMENSIONS: MM
(INCHES)
03/13
18.0 + 0
(.709 +0)
22.4
(.882)
2.0 ± 0.5
(.079 ± .020)
50.0 - 0
(1.969 - 0)
330.0
(13.00)
DIA.
13.0 ± 0.5
(.512 ± .020)DIA.
21.0 ± 0.8
(.827 ± .031)
13.0 ± 0.5
(.512 ± .020)
DIA.
12.0
(.472)END START
4.0
(.157)
5 5
5
5
USER DIRECTION OF FEED
NO COMPONENT
COMPONENTS
200
(7.874)
NO COMPONENT
400
(15.748)
1200 PIECES PER REEL
Asia-Pacifi c: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
Specifi cations 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 specifi c applications.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bourns:
SRP6540-100M SRP6540-1R0M SRP6540-1R5M SRP6540-2R2M SRP6540-3R3M SRP6540-4R7M SRP6540-
5R6M SRP6540-6R8M SRP6540-8R2M SRP6540-R56M SRP6540-R68M SRP6540-R82M SRP6540-470M
SRP6540-390M SRP6540-270M SRP6540-220M SRP6540-150M
