Features
■ Formerly model
■ Available in E6 values
■ Current rating to 2.78 amps
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
PM74SH Series - Shielded SMD 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.
Customers should verify actual device performance in their specifi c applications.
General Specifi cations
Test Voltage ....................................0.5 V
Refl ow Soldering .. 230 °C, 50 sec. max.
Operating Temperature -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Resistance to Soldering Heat
............................... 260 °C for 10 sec.
Materials
Core ...........................Ferrite DR and RI
Wire ............ Enameled copper wire 130
Terminal ....................................Cu/Ni/Sn
Rated Current
...................Ind. drop 10 % typ. at Isat
(-2R7M through -221M)
...................Ind. drop 25 % typ. at Isat
(-271M through -102M)
Temperature Rise ................. 30 °C max.
at rated Irms
Packaging .................. 1000 pcs. per reel
DIMENSIONS:
MM
(INCHES)
Product Dimensions
Electrical Specifi cations
Recommended Layout
Inductance 100 kHz Test SRF RDC I rms I sat
Q Frequency Min. Max.
Max. Typ.
Bourns Part No. (µH) Tol. % Typ. (MHz) (MHz) (Ω) (A) (A)
PM74SH-2R7M-RC 2.7 ± 20 10 7.96 60 0.027 2.78 3.10
PM74SH-3R9M-RC 3.9 ± 20 10 7.96 40 0.028 2.71 2.43
PM74SH-4R7M-RC 4.7 ± 20 10 7.96 35 0.030 2.64 2.20
PM74SH-5R6M-RC 5.6 ± 20 10 7.96 33 0.036 2.38 2.00
PM74SH-6R3M-RC 6.3 ± 20 10 7.96 30 0.038 2.33 1.85
PM74SH-100M-RC 10 ± 20 30 2.52 25 0.042 2.00 1.70
PM74SH-120M-RC 12 ±20 27 2.52 23 0.050 1.85 1.40
PM74SH-150M-RC 15 ± 20 31 2.52 24 0.062 1.60 1.35
PM74SH-180M-RC 18 ±20 29 2.52 21 0.070 1.50 1.15
PM74SH-220M-RC 22 ± 20 26 2.52 18 0.082 1.35 1.10
PM74SH-270M-RC 27 ±20 25 2.52 18 0.110 1.25 1.00
PM74SH-330M-RC 33 ± 20 25 2.52 12 0.115 1.15 0.90
PM74SH-390M-RC 39 ±20 26 2.52 13 0.130 1.10 0.80
PM74SH-470M-RC 47 ± 20 29 2.52 11 0.150 0.95 0.78
PM74SH-560M-RC 56 ±20 21 2.52 11 0.200 0.85 0.65
PM74SH-680M-RC 68 ± 20 22 2.52 10 0.210 0.77 0.60
PM74SH-820M-RC 82 ± 20 22 2.52 9 0.280 0.70 0.60
PM74SH-101M-RC 100 ± 20 40 0.796 8 0.300 0.65 0.50
PM74SH-121M-RC 120 ±20 30 0.796 7 0.420 0.60 0.45
PM74SH-151M-RC 150 ± 20 51 0.796 7 0.480 0.53 0.41
PM74SH-181M-RC 180 ±20 52 0.796 5 0.660 0.475 0.375
PM74SH-221M-RC 220 ± 20 44 0.796 5 0.700 0.45 0.36
PM74SH-271M-RC 270 ±20 30 0.796 5 0.840 0.40 0.275
PM74SH-331M-RC 330 ± 20 65 0.796 4 0.730 0.40 0.25
PM74SH-391M-RC 390 ±20 27 0.796 5 1.200 0.35 0.225
PM74SH-471M-RC 470 ± 20 80 0.796 3 1.100 0.32 0.22
PM74SH-561M-RC 560 ±20 27 0.796 4 1.600 0.30 0.20
PM74SH-681M-RC 680 ± 20 65 0.796 3 1.600 0.27 0.20
PM74SH-821M-RC 820 ±20 26 0.796 3 2.200 0.25 0.175
PM74SH-102M-RC 1000 ± 20 90 0.252 3 2.400 0.25 0.15
Electrical Schematic
2.4
(.094)
REF.
7.80
(.307)
1.8
(.071)
REF.
1.8
(.071)
REF.
4.2
(.165)
REF.
REF.
220
2.0
(.079)
TYP.
4.50 ± 0.3
(.177 ± .012)
7.0 ± 0.3
(.276 ± .012)
7.0 ± 0.3
(.276 ± .012)
1.5
(.059)
TYP.
4.0
(.157)
TYP.
