MVR21
Resistors
Chip trimmer potentiometers
MVR21
Features
1) Extremely small size and light weight facilitate the assembly of light, thinner, and smaller equipment.
2) Close match between wiper and resistive element reduces wiper noise.
3) Ruthenium oxide resistor material, with superb stability and resistance to humidity and the elements, offers the same
outstanding reliability of our existing product (MVR22).
4) Open design for reflow soldering.
5) Cross groove for easy adjustment.
6) ROHM resistors have approved ISO-9001 / ISO/TS 16949 certification.
Ratings
Design and specifications are subject to change without notice. Carefully check the specification sheet supplied with the
product before using or ordering it.
Item
Rated power
Conditions
Specifications
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70˚C.
0.15W (3 / 20W) / element
at 70˚C
POWER LOAD (%)
100
80
60
40
20
0
– 55
0
70
100
125
155
AMBIENT TEMPERATURE ( ˚C)
Fig.1
Rated voltage
The voltage rating is calculated by the following equation. If the value
obtained exceeds the maximum operating voltage, the voltage rating
is equal to the maximum operating voltage.
E : Rated voltage (V)
E= P×R
P : Rated power (W)
R : Nominal resistance (Ω)
Max. operating voltage
Nominal total
resistance range
100 to 2.2MΩ
Total
resistance tolerance
±25%
Resistance
variation
B (linear) characteristics
Operating temperature
50V
−55˚C to +155˚C
(recommended resistance value : E3 series)
(applicable resistance value : E6 series)
Rev.A
1/3
