Features
Applications
■ Shielded construction
■ Flat wire
■ DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Laptop computers
■ Unit height of 1.2 mm
■ Inductance range: 0.22 to 1.5 μH
■ Rated current up to 9 A
■ RoHS compliant* and halogen free**
• Camcorders, HDTV, car audio
systems
• Video game consoles
R22
SRP4012 Series - Shielded Power Inductors
General Specifications
Electrical Specifications
Test Voltage..................................0.25 V
Test Frequency.........................100 KHz
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
Inductance
I rms
(A)
I sat
(A)
10
9
8
6.3
6
DCR
Bourns Part No.
SRP4012-R22M
SRP4012-R47M
SRP4012-R56M
SRP4012-1R0M
SRP4012-1R2M
SRP4012-1R5M
L (μH) ±±2 ꢀ
(mΩ) Max.
0.22
0.47
0.56
1.0
1.2
1.5
9
6.5
5.5
4.8
3
9.3
20
25
33.6
45
50
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +125 °C
Resistance to Soldering Heat
3
5.5
.............................+260 °C for 10 sec.
Materials
Core..................................................Iron
Wire ............................Enameled copper
Terminal........................................Cu/Sn
Rated Current.....Ind. drops 20 % at Isat
Temperature Rise.....40 °C at rated Irms
Packaging..... 2000 pcs. per 13-inch reel
Soldering Profile
275
260 °C peak
<1>Maximum of 10 seconds
between +255 °C and +260 °C
<1> 255 °C
220 °C
225
175
125
75
190°C
Ramp Down
5 °C/second
60 seconds
maximum
150 °C
Product Dimensions
120-150 seconds
4.7
(.185)
10 seconds minimum
MAX.
Ramp Up
4 °C/second maximum
25
0
50
100
150
200
250
300
4.0 0.2
(.157 .008)
Time (Seconds)
R22
Electrical Schematic
Recommended Layout
4.0 0.2
(.157 .008)
2.2
(.087)
0.0 - 0.3
(0.0 - .012)
1.5
(.059)
1.2
(.047)
MAX.
6.0
(.236)
0.6 0.1
(.024 .004)
Asia-Pacific: 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
1.0 0.3
(.039 .012)
MM
DIMENSIONS:
(INCHES)
*
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.
Customers should verify actual device performance in their specific applications.