Model 7280 Series Precision Potentiometer Features: Lead-free RoHS 2 compliant 7/8 diameter 10 turn wirewound Wind vane Applications: Panel control Pedal position Test and measurement Joystick controls Medical equipment Valve control Angular position Model Styles Available 7281 1/8 shaft, 1/4 bushing 7283 1/8 shaft, servo 7284 6 mm shaft, 3/8 bushing 7286 1/4 shaft, 3/8 bushing 7288 (for heavy side load applications) 1/4 shaft, 3/8 bushing Electrical Resistance range 100 to 100K ohms Standard resistance tolerance 5% Minimum practical resistance tolerance 1% Independent linearity 0.25% Minimum practical independent linearity 0.15% (<300 ohms), 0.075% (300 ohms) Power rating 2.0 Watts at 70C, derating to 0 at 125C Dielectric strength 1,000 V rms Insulation resistance 1,000 Megohms minimum Noise 100 ohms maximum Actual electrical travel 3600 +10 -0 (>100 ohms), 3600 +10 -5 (100 ohms) End voltage Maximum 0.25% of input voltage Tap tolerance 3 TT Electronics BI Technologies General Note 413 Rood RD, Suite 7 TT Electronics reserves the right to make changes in product specificaoti n without Calexico, CA 92231 nocti e or liability. All informaoti n is subject to TT Electronics own data and is Ph: +1 714 447 2345 considered accurate at time of going to print. www.ttelectronics.com/bi -technologies TT electronics plc Issue C 04/2019 Page 1 Model 7280 Series Precision Potentiometer Mechanical Total mechanical travel 3600 +15 -0 Number of gangs 2 maximum Weight (single gang) 0.75 oz. nominal Backlash 1 maximum 7281, 7284, 7286, 7288 7283 Static stop strength Maximum 48 oz.-in. 36 oz.-in. Panel nut tightening torque Maximum 25 lb.-in. n/a Shaft end play Maximum 0.010 0.005 Shaft runout Maximum T.I.R. 0.003 0.002 Pilot diameter runout Maximum T.I.R. 0.004 0.002 Lateral runout Maximum T.I.R. 0.005 0.004 Shaft radial play Maximum 0.003 0.002 Start/run torque (per gang, ES option adds 0.5 oz. -in.) Maximum 0.8 oz.-in. 0.6 oz.-in. Environmental Operating temperature range -40C to +125C dynamic, -55C to +125C static Temperature cycling 5 cycles, -55C to +125C, maximum 5% R Shock 6 ms saw-tooth, 100 Gs, 0.1 ms maximum discontinuity Vibration 15 Gs, 10 to 2,000 Hz, maximum 5% R, 0.1 ms maximum discontinuity Moisture resistance Five 24 hour cycles, maximum 3% R High temperature exposure 1,000 hours at 125C, maximum 5% R Rotational load life (1 lb side load for 7288) 1M shaft revolutions + 900 hours at 2.0 Watts & 70C, maximum 5% R Ingress protection rating (IP Code) IP50, IP66 available as option (feature code ES) Ordering Information TT Electronics BI Technologies General Note 413 Rood RD, Suite 7 TT Electronics reserves the right to make changes in product specificaoti n without Calexico, CA 92231 nocti e or liability. All informaoti n is subject to TT Electronics own data and is Ph: +1 714 447 2345 considered accurate at time of going to print. www.ttelectronics.com/bi -technologies TT electronics plc Issue C 04/2019 Page 2