* Pictures are placed for illustration purpose only. Appearance of real component may differ
single, single-turn adjustable resistors with circular movement of the moving-contact assembly.
Intended for operation in direct and alternating current circuits in continuous and pulse modes.
Depending on the design, resistors are produced:
- SP3-19A, SP3-19V in a cylindrical casing,
- SP3-19B in a rectangular casing.
Manufactured in all-climate version [W] (world-wide) and versions for temperate and cold climates [NF] (temperate, frigid).
Intermediate values of the nominal resistance correspond to the E6 series with tolerances ±10; ±20%.
Functional characteristic - linear A.
Main technical parameters
- Range of the nominal resistance values 47 Ohm – 1.0 MOhm;
- Rated power 0.5 W;
- Maximum operating voltage 150 V;
- Level of inherent noise, not more than 10 µV/V;
- Minimum resistance, not more than 2.0 Ohm;
- Wear resistance, at least 500 cycles;
- Relative air humidity at temperature +35 °C 98 %;
- Environment temperature -60... +125 °С;
- Minimum lifetime, not lower than 20000 hours;
- Storage shelf-life, not lower than 15 years;
- Resistor mass, not more than 1.6 g.
Main technical specifications
| Type of resistor | Rated power | Range of nominal resistance values | Permissible deviations | Maximum operating voltage | Insulation resistance | Temperature coefficient of resistance | Functional characteristic | Environment temperature |
| W | Ohm | % | V | MOhm | TCR×10-6 1/°С | °С | ||
| SP3-19A, SP3-19АV | 0.5 W | 47 Ohm -1.0 MOhm | ±10; ±20 | 150 | > 1000 | ±250; ±500 | A | -60… +125 |
| SP3-19B, SP3-19BV | 0.5 W | 47 Ohm -1.0 MOhm | ±10; ±20 | 150 | > 1000 | ±250; ±500 | А | -60… +125 |
| SP3-19V, SP3-1VV | 0.5 W | 47 Ohm -1.0 MOhm | ±10; ±20 | 150 | > 1000 | ±250; ±500 | А | -60… +125 |
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