oH V SC AV ER OM AI SIO PL LA N IA BL S NT E *R Features ■ ■ ■ ■ ■ Small diameter Wide resistance range Good resolution Linear tapers Cermet element 3862 - 1/2 ” Diameter Single-Turn Panel Control Initial Electrical Characteristics1 Standard Resistance Range..................................................................................................................................................................100 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 % of total resistance 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 Environmental Characteristics1 Operating Temperature Range..........................................................................................................................................................................-1 °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 (C & N Bushing) No Load ..............................................................................................................................................................50,000 cycles Total Resistance Shift ....................................................................................................................................................................................±5 % maximum Contact Resistance Variation..........................................................................................................................................................................................±3 % 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 Mechanical Characteristics1 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) ......................................................................................................................................1.7-2.0 N-m (15-18 lb.-in.) maximum Shaft Locking Torque with Locking Bushings ....................................................................................................................................14.12 N-cm (20 oz.-in.) Weight (Single Section) ................................................................................................................................................................................25 grams maximum (Each Additional Section) ........................................................................................................................................................................................................ 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..................................................................................Manufacturer’s trademark, wiring diagram, date code, resistance, manufacturer’s part number Ganging..............................................................................................................................................................................................................1 cup maximum Hardware ............................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number. 1 AT ROOM AMBIENT: +25 °C NOMINAL AND 50 % RELATIVE HUMIDITY NOMINAL, EXCEPT AS NOTED. *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 3862 - 1/2 ” Diameter Single-Turn Panel Control Product Dimensions PCB LAYOUT 5.08 (.200) PANEL LAYOUT 6.22 (.245) 3.04 (.120) 2.54 (.100) TYP. 45 ° 6.22 (.245) 5.08 (.200) 3862E/T 15.88 3862C/N STD. (5/8) .89 ± .25 11.51 ± .41 3.18 ± .03 (.035 ± .010) (.453 ± .016) DIA. 2 PLCS. (.125 ± .001) 12.07 ± .76 L .79 (.475 ± .030) (.031) 11.51 ± .41 (.453 ± .016) 12.07 ± .76 (.475 ± .030) 6.73 (.265) DIA. 2.44 ± .13 (.096 + .005/ - .000) DIA. 2 PLCS. Shaft End Detail 3862 9.53, 22.23 STD. (3/8, 7/8) .89 ± .25 3.18 ± .03 (.035 ± .010) DIA. (.125 ± .001) 2 PLCS. L .79 2.38 (.031) (.094) 12.7 ± .41 DIA. (.500 ± .016) 45 ° ± 15 ° DIA. 12.7 ± .41 (.500 ± .016) .41 .41 45 ° ± 5 ° X 45 ° ± 5 ° X 6.25 6.25 (.016) (.016) -32 UNEF - 2A -32 UNEF 2A (1/4) 6.35 3.3 .79 ± .25 (1/4) .79 ± .25 POSITION OF SLOTS VARIABLE OPTIONAL FLAT LONG OR (.250) (.13) 16.88(.031 ± .010) (.031 ± .010) 9.53 12.7 L= FOR "T" BUSHING, FOR "E" BUSHING FROM BUSHING FOR SHAFTS UNDER (5/8) (.375) (.500) 6.35 9.65 L= FOR "C" BUSHING, FOR "N" BUSHING (.250) (.380) PC PIN TERMINAL 3.04 (.12) 12.06 ± .762 (.475 ± .03) 2 3 5.08 (.20) 5.08 (0.20) J-HOOK TERMINAL 3 .723 (.0285) CL OF LUG 32-1/2 ° ± 10 ° FLAT ORIENTATION @ CCW END SLOTS ARE NOT ORIENTED MM (INCHES) 2 1 2.54 (0.10) .25 (.010) 2 PLCS. 6.22 (.245) 2 PLCS. DIMENSIONS ARE: 2.286 (.09) TYP. 4.953 REF ONLY (.195) 2.31 2 PLCS. (.091) 8.89 (.35) 5.08 (0.20) .762 (.03) TYP. 1 2.54 (0.10) 6.53 (.250) MAX. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. How to Order 3862 Series Panel Controls 3862 12 16 20 28 C - SHAFT TYPE (FMS) & DIAMETER 3/8 (9.53 mm) L X 1/8 (3.18 mm) D 1/2 (12.7 mm) L x 1/8 (3.18 mm) D 5/8 ” (15.88 mm) L x 1/8 ” (3.18 mm) D 7/8 ” (22.20 mm) L X 1/8 ” (3.18 mm) D 28 2 - 102 BUSHINGS C C C, E, N, T C, E, N, T Consult factory for lengths not shown. C E N T BUSHING Plain 1/4 (6.35 mm) D x 1/4 (6.35 mm) L Locking 1/4 ” (6.35 mm) D x 1/2 ” (12.7 mm) L Plain 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L Locking 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L MODEL 3862 1/2 (12.7 mm) D Single-Turn Cermet 1 2 3 5 6 7 TERMINAL STYLE AND SHAFT TYPE Solder Lugs, Plain End Solder Lugs, Slotted End Solder Lugs, Flatted Shaft PC Pins, Plain End PC Pins, Slotted End PC Pins, Flatted End Boldface features are Bourns standard options. All others are available with higher minimum order quantities. REV. 06/06 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. A L RESISTANCE CODE/VALUE (IN OHMS) (101) 100 (251) 250 (501) 500 (102) 1K (252) 2.5 K (502) 5K (103) 10 K (253) 25 K (503) 50 K (104) 100 K (254) 250 K (504) 500 K (105) 1M A H TERMINALS L RoHS Compliant Blank Standard ELEMENT TAPER/TOLERANCE Linear –10 % Linear ±5 %