Features
Applications
■ DC/DC converters
■ Power supplies
■ General use
■ Formerly
model
■ High resistance to heat and humidity
■ Resistance to mechanical shock and
pressure
220
■ Accurate dimensions for automatic
surface mounting
■ Wide inductance range (0.1 nH to 1000 µH)
■ RoHS compliant*
PM1812 Series SMT Chip Inductors
General Specifications
Temperature Rise ...................................................................................................................................................................... 20 ˚C max.
Ambient Temperature ............................................................................................................................................................. 100 ˚C max.
Operating Temperature....................................................................................................................................................-40 °C to +125 °C
Storage Temperature.......................................................................................................................................................-40 °C to +125 °C
Resistance to Soldering Heat.........................................................................................................................................245 ˚C, 5 seconds
Materials
Core...................................................................................................................................................................................................Ferrite
Coil Type...................................................................................................................................................................................Copper wire
Enclosure..................................................................................................................................................................................Epoxy resin
Terminal...................................................................................................................................................................................................Sn
Recommended Land Pattern Dimensions
Product Dimensions
Marking
PM1812
c
3.2
(.125)
a
b
1.2
(.047)
4.5
(.177)
Model
a
b
c
3.2 ± 0.2
(.125 ± .008)
2.4 to 2.6
5.5 to 6.0
2.0 to 3.0
PM1812
(.094 to .102)
(.217 to .236)
(.079 to .118)
1.7 ± 0.2
(.066 ± .008)
MM
(INCHES)
1.0
(.039)
1.0
(.039)
DIMENSIONS:
Soldering Profiles
275
225
175
125
75
<1> 5 seconds maximum
at +245 °C
<1> 245 °C
170 °C
183 °C
60 seconds
150 °C
Ramp Down
5 °C/second
maximum
120 -150 seconds
10 seconds minimum
Ramp Up
4 °C/second maximum
25
0
50
100
150
200
250
300
Time (Seconds)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov