MCR18_1 Datasheet, PDF (1/6 Pages) Rohm – Thick film rectangular

Resistors
Thick film rectangular
MCR18 (1206 size: 1 / 4W)
MCR18
zFeatures
1) Power rating of 1 / 4W
2) Highly reliable chip resistor Ruthenium oxide dielectric offers superior resistance to the elements.
3) Electrodes not corroded by soldering
Thick film makes the electrodes very strong.
4) Leading the world in development and mass production.
Since start of production in 1976 (first in the wold), this component has established a solid reputation as a
general–purpose chip resistor.
5) ROHM resistors have approved ISO–9001 certification.
Design and specifications are subject to change without notice. Carefully check the specification sheet before using or
ordering it.
zRatings
Item
Rated power
Conditions
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C.
100
80
60
40
20
0 _−55
0
70 100
155
AMBIENT TEMPERATURE (°C)
Fig.1
Specifications
0.25W (1 / 4W)
at 70°C
Rated voltage
The voltage rating is calculated by the following equation.
If the value obtained exceeds the limiting element voltage,
the voltage rating is equal to the maximum operating voltage.
E= P×R
Nominal resistance See Table 1.
Operating temperature
E: Rated voltage (V)
P: Rated power (W)
R: Nominal resistance (Ω)
Limiting element voltage
−55°C to +155°C
200V
Rev.C
1/5