Features n Small diameter n Wide resistance range n Good resolution n Linear tapers n Cermet element 3862 1/2 Diameter Single-Turn Panel Control 1 Initial Electrical Characteristics Standard Resistance Range 1K ohms to 1 megohm Total Resistance Tolerance (A Taper) 10 % (H Taper) 5% Independent Linearity 5 % Absolute Minimum Resistance 2 ohms maximum Effective Electrical Angle 260 10 Contact Resistance Variation 3 % or 6 ohms (whichever is greater) Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Sea Level 750 VAC minimum 70,000 Feet 350 VAC minimum Insulation Resistance (500 VDC) 1,000 megohms minimum Power Rating (Voltage Limited by Power Dissipation or 350 VAC, Whichever is Less) +70 C 1 watt +125 C 0 watt Theoretical Resolution Essentially infinite 1 Environmental Characteristics Operating Temperature Range -40 C to +125 C Storage Temperature Range -65 C to +125 C Temperature Coefficient Over Storage Temperature Range 150 ppm/C Vibration 20 G Total Resistance Shift 2 % maximum Voltage Ratio Shift 6 % maximum Shock 50 G Total Resistance Shift 2 % maximum Voltage Ratio Shift 6 % maximum Load Life 1,000 hours Total Resistance Shift 3 % maximum Rotational Life, No Load (C & N Bushings) 50,000 cycles (E & T Bushings) 1,000 cycles Total Resistance Shift 5 % maximum Contact Resistance Variation 3 % or 6 ohms (whichever is greater) Moisture Resistance (MIL-STD-202, Method 106, Condition B) Total Resistance Shift 2 % maximum Insulation Resistance (500 VDC) 100 megohms minimum Salt Spray MIL-STD-202, Method 101, Condition A IP Rating IP 40 1 Mechanical Characteristics Stop Strength 33 N-cm (3 lb -in ) maximum Mechanical Angle 295 3 Torque Starting and Running 3 53 N-cm (5 oz -in ) maximum Mounting (Torque on Bushing) 17-2 0 N-m (15-18 lb -in ) maximum Shaft Locking Torque with Locking Bushings 1412 N-cm (20 oz -in ) Weight (Single Section) 25 grams maximum Terminals Printed circuit pins or J-Hooks Soldering Condition Recommended hand soldering using Sn85/Ag5 no clean solder, 0.025 wire diameter Maximum temperature 399 C (750 F) for 3 seconds No wash process to be used with no clean flux Part can be wave soldered at 260 C (500 F) for 5 seconds, no wash process with no clean flux Marking Manufacturers trademark, wiring diagram, date code, resistance, manufacturers part number Ganging 1 cup maximum Hardware One lockwasher (H-37-1) and one mounting nut (H-38-1) is shipped with each potentiometer locking bushing versions are shipped with one additional locking nut (H-38-3) 1 ELECTRICAL SPECIFICATIONS TESTED AT 250 RPM, AT ROOM AMBIENT: +25 C NOMINAL. *RoHS Directive 2015/863, Mar 31, 2015 and Annex. WARNING Specifications are subject to change without notice. Users should verify actual device performance in their specific Cancer and Reproductive Harm applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the www.P65Warnings.ca.gov last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 3862 1/2 Diameter Single-Turn Panel Control Product Dimensions PCB LAYOUT PANEL LAYOUT 6.325 5.08 3.04 (.249) (.200) (.120) 45 2.54 (.100) 6.325 TYP. (.249) 5.08 6.731 2.438 + .127 / -0.000 (.200) (.265) (.096 + .005 / - .000) DIA. DIA. 2 PLCS. 3862E/T 15.88 3862C/N Shaft End Detail STD. (5/8) 9.53, 22.23 3862 11.51 .41 STD. (3/8, 7/8) .89 .25 11.51 .41 (.453 .016) 3.18 .03 45 15 .89 .25 (.035 .010) DIA. (.453 .016) 3.18 .03 (.125 .001) 2.31 (.035 .010) 2 PLCS. DIA. 12.07 .76 2 PLCS. 12.07 .76 (.125 .001) (.091) 2 PLCS. L .79 L (.475 .030) (.475 .030) 2.38 .79 (.031) (.094) (.031) 12.7 .41 12.7 .41 DIA. DIA. (.500 .016) (.500 .016) .25 .41 .41 (.010) 45 5 X 45 5 X 6.25 6.22 (.016) 6.25 (.016) 2 PLCS. -32 UNEF - 2A -32 UNEF - 2A (1/4) 6.35 3.3 (.245) (1/4) .79 .25 .79 .25 POSITION OF SLOTS VARIABLE OPTIONAL FLAT LONG OR (.250) (.13) (.031 .010) 2 PLCS. (.031 .010) 9.53 12.7 16.88 L = FOR BUSHING, FOR BUSHING FROM BUSHING FOR SHAFTS UNDER 32-1/2 10 (.375) (.500) (5/8) FLAT ORIENTATION C OF LUG 6.35 9.65 L L = FOR BUSHING, FOR BUSHING CCW END (.250) (.380) SLOTS ARE NOT ORIENTED PC PIN TERMINAL J-HOOK TERMINAL 1 3 2.286 CCW 4.953 3.04 REF ONLY (.195) (.09) 12.06 .762 (.12) TYP. (.475 .03) 2 2 2 POTENTIOMETER .762 3 1 3 1 (.03) 5.08 .723 TYP. 8.89 6.53 (.20) (.0285) 2.54 (.35) 2.54 MM (.250) (0.10) (0.10) DIMENSIONS: 5.08 5.08 MAX. (INCHES) (0.20) (0.20) Hardware LOCKWASHER H-37-1 NUT H-38-1 LOCKING NUT H-38-3 6.6 9.53 +0/-0.38 2.36 0.25 4.57 0.05 (.26) (.375 +0/-.015) (.093 .01) (.180 .002) 15 1 1/4-32 UNEF 7.75 1/4-32 (.305) NEF-20 12.07 0.25 0.64 0.05 30 5 11 +0/-0.43 (.475 .01) (.025 .002) TYP. 0.64 7.92 (.433 +0/-.017) (.025) (.312) Date Code Description 1.02 MM DIMENSIONS: YYWWM (.040) 30 5 (INCHES) M = COUNTRY OF MANUFACTURE (MEXICO) 3.96 WW = WEEK NUMBER (.156) YY = LAST TWO DIGITS OF YEAR MANUFACTURED Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.