Model 7380 7/8” Diameter 3 Turn Wirewound Precision Potentiometer MODEL STYLES AVAILABLE 7381 1/8” Shaft, 1/4” Bushing 7383 1/8” Shaft, Servo 7386 1/4” Shaft, 3/8” Bushing 7388 (for heavy side load applications) 1/4” Shaft, 3/8” Bushing ELECTRICAL1 Resistance Range 100 to 30K ohms Standard Resistance Tolerance ±5% Minimum Practical Resistance Tolerance ±1% Independent Linearity2 ±0.30% (<500 ohms), ±0.25% (≥500 ohms) Minimum Practical Independent Linearity ±0.30% (<500 ohms), ±0.20% (≥500 ohms) Power Rating 1.5 Watts at 70°C, derating to 0 at 125°C Dielectric Strength 1,000 V rms Insulation Resistance 1,000 Megohms minimum Noise 100 ohms maximum Actual Electrical Travel 1080° +10° -0° (>100 ohms), 1080° +10° -5° (≤100 ohms) End Voltage maximum 0.25% of input voltage Tap Tolerance ±3° MECHANICAL Total Mechanical Travel 1080° +15° -0° Number of Gangs 2 maximum Weight (single gang) 0.75 oz. nominal Backlash 1° maximum 7381, 7386 1 2 7383 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 0.004” maximum T.I.R. 0.005” Shaft Radial Play maximum 0.003” 0.002” Start/Run Torque (per gang, ES option adds 0.5 oz.-in.) maximum 1.2 oz.-in. 0.9 oz.-in. Specifications subject to change without notice. Linearity is measured between 1% and 99% of input voltage. BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 February 19, 2015 Website: www.bitechnologies.com Model 7380 page 1 of 4 RoHS 2 Pb compliant Model 7380 ENVIRONMENTAL (MIL-PRF-12934) Operating Temperature Range -40°C to +125°C dynamic, -55°C to +125°C static Temperature Cycling 5 cycles, -55°C to +125°C, maximum 5% ΔR Shock 6 ms Saw-tooth, 100 G’s, 0.1 ms maximum discontinuity Vibration 15 G’s, 10 to 2,000 Hz, maximum 5% ΔR, 0.1 ms maximum discontinuity Moisture Resistance Five 24 hour cycles, maximum 3% ΔR High Temperature Exposure 1,000 hours at 125°C, maximum 5% ΔR Rotational Load Life (1 lb side load for 7388) 300K shaft revolutions + 900 hours at 1.5 Watts & 70°C, maximum 5% ΔR Ingress Protection Rating (IP Code) IP50, IP66 available as option (feature code ES) ORDERING INFORMATION 7386 R 10K T2 L.5 xx Model Series Optional Feature Code (see table) Resistance Prefix Linearity Resistance Value Optional Non-standard Tolerance FEATURE CODES STANDARD RESISTANCE VALUES Center Tap CT Theoretical Resolution (% nominal) Linearity Tape LT Total Resistance (Ohms) Flatted Shaft FS 100 0.059 ±20 Slotted Shaft (standard on single cup 7386 without RS feature) SS 200 0.037 ±20 Rear Shaft Extension (7381, 7386 single cup only) RS 500 0.030 ±20 Shaft Lock (7386 only) SL 1K 0.024 ±20 High Torque 2-6 oz.-in. (7386 only) HT 2K 0.020 ±20 Additional Gang 2G 5K 0.018 ±20 Gold Plated Solder Lug Terminals (see optional terminal configuration) FT 10K 0.017 ±20 20K 0.016 ±20 Seal (IP66) 7386 or 7388 only ES When multiple Feature codes are used the P/N shall be in the same sequence as listed in this table (top to bottom). Tempco of wire (ppm/°C) CIRCUIT DIAGRAM (S) (CCW) BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 February 19, 2015 Website: www.bitechnologies.com Model 7380 page 2 of 4 (CW) Model 7380 MATCHING TURNS COUNTING DIALS 7381: RBJ, 2601, 2641 7386: RB, 2126, 2606, 2606S, 2607, 2607S, 2626, 2627, 2646, 2646S, 2647, 2647S OUTLINE DRAWINGS Dim. Models 7381 & 7386 Bushing Mount with Sleeve Bearing A B C 1.125±.031 28.58±0.79 .750±.016 19.1±0.41 Slider CCW Mounting Surface Dim. A .125 Min. 3.18 .062 +.000 -.010 1.58 +0.00 -0.25 Dim. D SLIDER 1/4-32 UNEF Thread 3/8-32 UNEF Thread .281 +.000 -.002 Dia. 7.137 +0.000 -0.051 Slot: .032±.005/0.813±0.127 Wide X .032+.010-.000/0.813+0.254-0.000 Deep (Not on Rear Shaft Models) .875±.016 Dia. 22.2±0.41 .020 Thickness VIEW B .110 2.794 .060 ± .003 1.524 ± .076 .062 ± .003 1.524 ± .076 Enlarged View B Use Special Feature Code “FT” to order. BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 .625 R Max. 15.9 .312±.016 7.93±0.41 .625 R MAX 15.9 R MAX February 19, 2015 .406 +.000 -.002 Dia. 10.312 +0.000 -0.051 75° Max. Optional Terminal Configuration 40° .2500 +.0000 -.0005 Dia. 6.3500 +0.0000 -0.0127 Dim. C Chamfer .016/0.41 Max. x 45° 7386 .812±.031 20.625±0.787 .1248 +.0000 -.0003 Dia. 3.1699 +0.0000 -0.0076 Dim. B CW .080±.001 2.03±0.03 Dia. D 7381 .688±.013 17.475±0.787 Website: www.bitechnologies.com Model 7380 page 3 of 4 Dia. Model 7380 OUTLINE DRAWINGS (continued) Model 7383 Servo Mount with Ball Bearing Mounting Surface 1.250±.031 31.75±0.79 .375±.031 9.53±0.79 .875±.016 22.2±0.41 .250 6.35 CCW Min. CW Slider .875±.016 22.2±0.41 Housing Dia. .781 19.8 Dia. Max. .080±.001 2.03±0.03 Dia. +.0000 -.0003 +0.0000 Dia. 3.1699 -0.0076 .1248 +.000 .625 -.001 +0.000 Dia. 15.875 -0.025 .057 1.45 Min. .062±.005 1.58±0.13 .062±.005 1.58±0.13 .625 R. Max. 15.9 105° Max. +.005 .875 -.010 Dia. +0.13 22.2 -0.25 Chamfer .016/0.406 Max. x 45° Clamp .922 Dia. Max. 23.4 Optional Terminal Configuration 40° 105° MAX SLIDER .625 R MAX 15.9 R MAX VIEW B .020 Thickness BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 February 19, 2015 .110 2.794 .060 ± .003 1.524 ± .076 .062 ± .003 1.524 ± .076 Use Special Feature Code “FT” to order. Website: www.bitechnologies.com Model 7380 page 4 of 4 Clamp Ears Enlarged View B Dia.