7283R10KT2L.25XX datasheet(2/5 Pages) BITECH

Part #	7283R10KT2L.25XX

Description	7/8 Diameter 10-Turn Wirewound Precision Potentiometer

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Manufacturer	BITECH [Bi technologies]

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2-98

Model 7280 Series

MECHANICAL

Total Mechanical Travel

3600° + 15° – 0°

Number of Gangs, Maximum

2

Weight, Nominal (single gang)

0.75 oz.

Backlash, Maximum

1°

7281, 7284, 7286

7283

Static Stop Strength

60 oz.-in.

36 oz.-in.

Panel Nut Tightening Torque, Maximum

25 lb.-in.

N/A

Shaft End Play, Maximum

.010”

.005”

Shaft Runout, T.I.R., Maximum

.003”

.002”

Pilot Diameter Runout, T.I.R., Maximum

.004”

.002”

Lateral Runout, T.I.R., Maximum

.005”

.004”

Shaft Radial Play, Maximum

.003”

.002”

Start/Run Torque, Maximum (per gang)

0.8 oz.-in.

0.6 oz.-in.

STANDARD RESISTANCE VALUES, OHMS

Theoretical

Total

Resolution

Tempco

Resistance

(% Nominal)

of Wire

100

0.059

±20 ppm/°C

200

0.037

±20 ppm/°C

500

0.030

±20 ppm/°C

1K

0.024

±20 ppm/°C

2K

0.020

±20 ppm/°C

5K

0.018

±20 ppm/°C

10K

0.017

±20 ppm/°C

20K

0.016

±20 ppm/°C

50K

0.010

±20 ppm/°C

100K

0.008

±20 ppm/°C

ENVIRONMENTAL (MIL-R-12934)

Operating Temperature Range

Static: –55°C to +125°C

Dynamic: –40°C to +125°C

Temperature Cycling

5 cycles, –55°C to +125°C (5%

∆R)

Shock, 6ms Sawtooth

100G’s (0.1ms discontinuity max.)

Vibration

15G’s, 10 to 2,000 Hz (5%

∆R, 0.1ms discontinuity max.)

Moisture Resistance

Five 24 hour cycles (3%

∆R)

High Temperature Exposure

1,000 hours at 125°C (5%

∆R)

Rotational Load Life

1 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5%

∆R)

Rotational Life Model 7288 (1 pound Side Load)

1 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5%

∆R)

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