7280 Datasheet, PDF (2/5 Pages) Bi technologies – 7/8 Diameter 10-Turn Wirewound Precision Potentiometer

ENVIRONMENTAL (MIL-R-12934)
Operating Temperature Range
Temperature Cycling
Shock, 6ms Sawtooth
Vibration
Moisture Resistance
High Temperature Exposure
Rotational Load Life
Rotational Life Model 7288 (1 pound Side Load)
MECHANICAL
Total Mechanical Travel
Number of Gangs, Maximum
Weight, Nominal (single gang)
Backlash, Maximum
Static Stop Strength
Panel Nut Tightening Torque, Maximum
Shaft End Play, Maximum
Shaft Runout, T.I.R., Maximum
Pilot Diameter Runout, T.I.R., Maximum
Lateral Runout, T.I.R., Maximum
Shaft Radial Play, Maximum
Start/Run Torque, Maximum (per gang)
Static: –55°C to +125°C
Dynamic: –40°C to +125°C
5 cycles, –55°C to +125°C (5% ∆R)
100G’s (0.1ms discontinuity max.)
15G’s, 10 to 2,000 Hz (5% ∆R, 0.1ms discontinuity max.)
Five 24 hour cycles (3% ∆R)
1,000 hours at 125°C (5% ∆R)
1 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R)
1 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R)
7281, 7284, 7286
60 oz.-in.
25 lb.-in.
.010”
.003”
.004”
.005”
.003”
0.8 oz.-in.
3600° + 15° – 0°
2
0.75 oz.
1°
7283
36 oz.-in.
N/A
.005”
.002”
.002”
.004”
.002”
0.6 oz.-in.
STANDARD RESISTANCE VALUES, OHMS
Total
Resistance
100
200
500
1K
2K
5K
10K
20K
50K
100K
Theoretical
Resolution
(% Nominal)
0.059
0.037
0.030
0.024
0.020
0.018
0.017
0.016
0.010
0.008
Tempco
of Wire
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
2-98
Model 7280 Series