R68
12.4
(0.488)
10.7 ± 0.5
(0.421 ± 0.020)
11.8
(0.465)
MAX.
MAX.
2.2 ± 0.5
(0.087 ± 0.020)
2.9 ± 0.5
(0.114 ± 0.020)
4.5
(.177)
10.0 ± 0.5
(0.394 ± 0.020)
10.5
(0.413)
MAX.
4.0
(.157)
MAX.
4.2
(.165)
Features
■ Formerly model
■ Shielded construction
■ Unit height of 4.2 mm
■ Inductance range: 0.15 µH to 2.5 µH
■ Current up to 34 A
■ RoHS compliant*
PM1038S Series - Shielded Power Inductors
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
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.
General Specifi cations
Test Voltage ..................................0.25 V
Test Frequency ......................... 100 KHz
Refl ow Soldering ....230 ˚C; 50 sec max.
Operating Temperature
................................-55 °C to +150 °C
(Temperature rise included)
Storage Temperature ..............................
.................................55 °C to +150 °C
Resistance to Soldering Heat
.............................+260 °C for 10 sec.
Materials
Core .................................................. Iron
Wire ............................Enameled copper
Terminal ........................................ Cu/Sn
Rated Current ....Ind. drops 20 % at I sat
Temperature Rise ....40 ˚C at rated I rms
Packaging ....... 800 pcs. per 13-inch reel
DIMENSIONS:
MM
(INCHES)
Product Dimensions
Electrical Specifi cations
Recommended Layout
Inductance I rms I sat DCR
Bourns Part No. L (µH) (A) (A) (mΩ) max.
PM1038S-R15M-RC 0.15 34 40 1.3
PM1038S-R39M-RC 0.39 24 32 1.4
PM1038S-R50M-RC 0.50 23 32 1.9
PM1038S-R75M-RC 0.75 22 28 2.5
PM1038S-1R2M-RC 1.2 18 24 4.7
PM1038S-1R7M-RC 1.7 15 18 7.5
PM1038S-2R5M-RC 2.5 11.5 14 8.7
Soldering Profi le
Electrical Schematic
25
75
125
175
225
275
0 50 100 150 200 250 300
Time (Seconds)
Temperature (°C)
120-150 seconds
60 seconds
maximum
260 °C peak
190°C
150 °C
220 °C
Ramp Down
5 °C/second
<1> 255 °C
<1> Maximum of 10 seconds
between +255 °C and +260 °C
Ramp Up
4 °C/second maximum
10 seconds minimum
This series is currently available, but
not recommended for new designs.
The newer Model SRP1038A Series
is recommended.
