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BCM SENSOR bondable compensation resistors (BCR) are designed for purposes of the zero adjustment, sensitivity adjustment (or unification), and temperature compensation for zero offset and sensitivity drift (or span), for Wheatstone bridge circuit in transducer application.
According to the purpose, there are various metal foils available as option. The constantan foil which has low temperature coefficient is specially for zero and sensitivity adjustment. The balco, nickel and copper which have high temperature coefficient (*) are used for temperature compensation of zero offset and sensitivity drift.
(*): TCR (temperature coefficient of resistance) of balco is 4300ppm/°C; TCR of nickel is 5500ppm/°C; TCR of copper is 3860ppm/°C.
To realize the above-mentioned purposes, there are different resistor patterns available. Depending on the pattern design, the way to trim the resistance of the BCR can be distinguished into four categories: cutting (C), fixed (F), rubbing (R), and short circuit (S).
For a correct selection of a compensation resistor for your specific application, it is recommended to refer first to Ordering Information, so that you would have more inside view on the features of the BCR.
resistors can be cut, with fixed resistance, can be rubbed, and can be short circuited
0.2Ω, …, 200Ω
|Maximum Or Minimum Resistance After Trim||
0.5Ω, …, 50Ω
modified phenolic resin (F), modified polyimide resin (I), advanced laminated polyimide (A),