SM Series Chip Resistors

Ohmcrafts fine line, thick film patterning technology provides high
level of performance and stability in surface mount chip resistors.
Ultra High Stability
Resistance Values to 2,000 Gigohms
Tight Tolerances ( to 0.1% )
Low TCR ( to 10 ppm/?C )
Low VCR ( to 1 ppm/V )
Very Low noise
Custom Configurations
The usual technologies for manufacturing resistors
depend upon composite materials that have limitations.
Traditional thick-film process methods limit performance
characteristics and thin-film methods are limited in attainable
ohmic values. Ohmcrafts fine line patterning
offers the best characteristics of both methods, plus adds
many unique features. Ohmcraft resistors feature a
longer, high-aspect ratio trace of lower resistivity film.
The combination of long line, high-aspect ratio, and
higher conductivity film, give Ohmcraft resistors
Note 1: Other standard & custom case sizes are available.
Note 2: The continuous maximum voltage applied cannot exceed the maximum power rating.
SM Series
Chip Resistors
Ratings Case Size1
0402 0603 0805 1206 2010 2512
Max. Power (W) 0.040 0.060 0.200 0.330 1.000 2.000
Max. Voltage2 (V) 50 100 125 200 300 350
Resistance Range
(ohms)
1K-
20G
1K-
300G
1K-
350G
1K-
500G
10K-
1T
10K-
2.0T
unmatched design efficiency, versatility, linearity, stability
and low noise. The Ohmcraft fine line patterning methods
allow control of process parameters to very tight tolerances.
The result is chip resistors with outstanding stability and
high voltage ratings.
Leaded resistors, dividers and networks are manufactured
using the same fine line patterning technologies. For additional
information on those products, please refer to the
appropriate data sheets.
High Value Resistors:
Ohmcrafts resistors exceed resistance values available from
conventional technology due to the increased length available
with Ohmcrafts fine line patterning technologies.
Low Noise:
Ohmcraft resistors exhibit exceptional noise characteristics.
The graph on the right demonstrates the comparison of a resistor
written by Ohmcraft fine line patterning methods and an
equivalent resistor printed using a standard thick-film process.
The longer serpentine path which uses lower resistivity inks,
and the smoother edges created by writing rather than
screening combine to make one of the lowest noise generating
resistors in the market.