3548S-2AA-502/502B

T PL IA N M CO *R oH S Features ■ Wirewound and Hybritron® elements ■ Designed for HMI and MMI applications ■ High rotational life ■ Dual gang option ■ Optional 0.15 % linearity ■ Servo mount option ■ Optional A/R lug ■ RoHS compliant* ■ Suitable for use under side load 3548 - 5-Turn Precision Potentiometer Electrical Characteristics1 Wirewound Element Hybritron® Element Standard Resistance Range..................................................................500 to 50K ohms ....................................................1K to 10K ohms Total Resistance Tolerance....................................................................±3 % .......................................................................±10 % Independent Linearity ............................................................................±0.25 % ..................................................................±0.25 % Independent Linearity (Maximum Practical) ..........................................±0.15 % ..................................................................±0.15 % Effective Electrical Angle .......................................................................1800 ° +10 °, -0 °....................................................1800 ° +10 °, -0 ° Absolute Minimum Resistance/End Voltage ..........................................1 ohm or 0.1 % maximum ......................................0.4 % maximum (whichever is greater) Noise/Output Smoothness ....................................................................100 ohms maximum ...............................................0.15 % maximum Max. Wiper Current @ 5K ohms ...........................................................20 mA .....................................................................10 mA Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Sea Level ...........................................................................................1,000 VAC minimum ..............................................1,000 VAC minimum Insulation Resistance (500 VDC) ..........................................................1,000 megohms minimum ......................................1,000 megohms minimum Resolution..............................................................................................See How to Order chart ........................................Essentially infinite Power Rating (Voltage Limited By Power Dissipation) +70 °C................................................................................................1.5 watts .................................................................1.5 watts +125 °C..............................................................................................0 watt......................................................................0 watt Environmental Characteristics1 Operating Temperature Range Dynamic .............................................................................................-40 °C to +125 °C ...................................................-40 °C to +125 °C Static ..................................................................................................-55 °C to +125 °C ...................................................-55 °C to +125 °C Temperature Coefficient (Over Static Temperature Range) ..................±50 ppm/°C ............................................................±100 ppm/°C Temperature Cycling (5 Cycles Over Static Temperature Range) .........±2 % TR shift max. .................................................±4 % TR shift max. Vibration (15 Gs, 10 Hz to 2 kHz) Wiper Bounce ....................................................................................0.1 ms max.............................................................0.1 ms max. Shock (100 Gs, 6 ms sawtooth) Wiper Bounce ....................................................................................0.1 ms max.............................................................0.1 ms max. Load Life (1,000 hours @ 70 °C)...........................................................±2 % TR shift max. .................................................±5 % TR shift max. Rotational Life No Load .............................................................................................1,000,000 shaft revolutions ...................................2,500,000 shaft revolutions Powered (MIL-PRF-12934)................................................................1,000,000 shaft revolutions ...................................2,500,000 shaft revolutions Moisture Resistance (Mil-Std-202, Method 103) ...................................±2 % TR shift max. .................................................±5 % TR shift max. IP Rating ................................................................................................IP 50 .......................................................................IP 50 Mechanical Characteristics1 Mechanical Angle ...........................................................................................................................................................................................1800 ° +10 °, -0 ° Backlash .................................................................................................................................................................................................................... 1.0 ° max. Stop Strength.......................................................................................................................................................................................53 N-cm (75 oz-in.) min. Torque Starting ........................................................................................................................................................................................0.5 N-cm (0.7 oz.-in.) max. Running .......................................................................................................................................................................................0.5 N-cm (0.7 oz.-in.) max. Clutch................................................................................................................................................................................1.0 to 4.2 N-cm (1.5 to 6.0 oz.-in.) Mounting .......................................................................................................................................................................... 170-200 N-cm (15-18 in.-lb.) max. Shaft Runout T.I.R. ..................................................................................................................................................................................... 0.08 mm (0.003 in.) Lateral Runout T.I.R.................................................................................................................................................................................... 0.13 mm (0.005 in.) Shaft End Play T.I.R. .................................................................................................................................................................................. 0.15 mm (0.006 in.) Shaft Radial Play T.I.R................................................................................................................................................................................ 0.08 mm (0.003 in.) Pilot Diameter Runout T.I.R. ....................................................................................................................................................................... 0.08 mm (0.003 in.) Weight Single .................................................................................................................................................................................................... 19 gm (0.67 oz.) typ. Dual ..................................................................................................................................................................................................... 35 gm. (1.23 oz.) typ. Shaft Side Load (Max. Allowable) Nickel Plated Brass Shaft w/Brass Bushing ................................................................................................................................................. 50 gmf (1.7 ozf) Stainless Steel Shaft w/Bronze Bushing .................................................................................................................................................... 250 gmf (8.8 ozf) Terminals .............................................................................................................................................................................................. Gold-plated solder lugs Soldering Condition Manual Soldering ........................................................... 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire, 370 °C (700 °F) max. for 3 seconds Wave Soldering ...................................................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean flux, 260 °C (500 °F) max. for 5 seconds Wash processes .......................................................................................................................................................................................Not recommended Mounting Hardware ............................................................................................. One lockwasher and one mounting nut is shipped with each potentiometer Recommended Panel Thickness (Bushing Mount) ..................................................................................................................2.46-3.81 mm (0.097-0.150 in.) Marking ...........................................................................................................................Manufacturer’s symbol, model number, product code and date code Standard Packaging ........................................................................................................................................................................... Plastic trays (5 pcs./tray) 1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. For other options, please consult factory. WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov *RoHS Directive 2015/863, Mar 31, 2015 and Annex. 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. 3548 - 5-Turn Precision Potentiometer Product Dimensions Single Gang, Bushing Mount 18.446 ± 0.381 (.726 ± .015) 2 1 Dual Gang, Bushing Mount 40.259 ± 0.762 (1.585 ± .030) MOUNTING SURFACE 14.046 ± 0.381 (.553 ± .015) 5.715 ± 0.381 (.225 ± .015) 10.287 + 0.00/-0.05 (.405 +0.00/-.002) 3 39.243 ± 0.762 (1.545 ± .030) 34.798 ± 0.762 (1.370 ± .030) 26.467 ± 0.762 (1.042 ± .030) 18.796 ± 0.381 (.740 ± .015) BUSHING TYPE “B” R 14.351 ± 0.381 (.565 ± .015) 6.02 ± 0.381 (.237 ± .015) 0.762 (.030) 2 1 3 2 1 SHAFT DIMENSION “A” 10.287 + 0.00/-0.05 (.405 +0.00/-.002) BUSHING TYPE “B” 3 ADJUSTMENT SLOT: 0.813 0.813 DEEP WIDE X (.032) (.032) SHAFT DIMENSION “A” 1.524 ± 0.254 (.060 ± .010) 7.92 ± 0.381 (.312 ± .015) 19.812 ± 0.812 (.780 ± .032) 20.617 ± 0.787 (.812 ± .031) 1.52 (.060) 7.92 ± 0.381 (.312 ± .015) 20.643 ± 0.787 (.813 ± .031) 0.813 ± .0004 0.813 WIDE X ADJ. SLOT: DEEP (.032 ± .010) (.032) 30 ° ± 5 ° OPTIONAL ANTIROTATIONAL PIN 6.86 ± 0.25 (.270 ± .010) R 16.256 (.640) MAX. MOUNTING SURFACE 12.7 ± 0.254 (.500 ± .010) 1.524 +.000/-0.127 (.060 +.000/-.005) DIA. 1.016 (.040) OPTIONAL ANTI-ROTATIONAL PIN 22.479 ± 0.812 DIA. (.885 ± .032) 2 CCW 30 ° ± 5 ° OPTIONAL ANTIROTATIONAL PIN 12.7 ± 0.254 (.500 ± .010) DIA. 12.649 ± 0.254 (.498 ± .010) MOUNTING FACE WIPER 3 1 6.86 ± 0.25 (.270 ± .010) R 16.256 (.640) MAX. CW CLOCKWISE TOLERANCES: EXCEPT WHERE NOTED .50 .127 .0127 DECIMALS: .XX ± (.02) .XXX ± (.005) .XXXX ± (.0005) MM DIMENSIONS: (IN) Bushing Selection Bushing Material Shaft Material Bushing Type "B" Shaft Dimension "A" Code 6.34 +0/-0.022 Brass Nickel Plated Brass 3/8 " 32-UNEF- 2A THD. A (0.2497 +0/-0.0009) 6.00 +0/-0.022 Brass Nickel Plated Brass M9 X 0.75-8g B (0.2362 +0/-0.0009) 6.34 +0/-0.007 Bronze Stainless Steel 3/8 " 32-UNEF- 2A THD. C (0.2497 +0/-0.0003) 6.00 +0/-0.007 Bronze Stainless Steel M9 X 0.75-8g D (0.2362 +0/-0.0003) 6.34 +0/-0.007 Bronze Stainless Steel 3/8 " 32-UNEF- 2A THD. G (0.2497 +0/-0.0003) 6.00 +0/-0.007 Bronze Stainless Steel M9 X 0.75-8g H (0.2362 +0/-0.0003) 1.524 +.000/-0.127 (.060 +.000/-.005) DIA. 1.016 (.040) OPTIONAL ANTI-ROTATIONAL PIN CCW 3 1 2 CCW 22.479 ± 0.812 DIA. (.885 ± .032) 2 CW WIPER 3 1 DIA. 12.649 ± 0.254 (.498 ± .010) MOUNTING FACE CW CLOCKWISE 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. 3548 - 5-Turn Precision Potentiometer Product Dimensions Single Gang, Servo Mount Dual Gang, Servo Mount 23.86 ± 0.381 (.939 ± .015) 19.46 ± 0.381 (.766 ± .015) 2 1 45.67 ± 0.78 (1.798 ± .031) 44.65 ± 0.78 (1.758 ± .031) 40.21 ± 0.78 (1.583 ± .031) 31.88 ± 0.78 (1.255 ± .031) 24.206 ± 0.381 (.953 ± .015) 19.76 ± 0.381 (.778 ± .015) MOUNTING SURFACE 11.13 ± 0.381 (.438 ± .015) 15.8725 + .0000/-.0127 DIA. (.6249 +.0000/-.0005) 3 17.526 DIA. (.690) DIA. 3.1699 + .0000/-.0076 (.1248 + .0000/-.0003) 2 1 3 2 1 MOUNTING SURFACE 11.43 ± 0.381 (.450 ± .015) 15.8725 + .0000/-.0127 DIA. (.6249 +.0000/-.0005) 3 17.526 DIA. (.690) DIA. 3.1699 + .0000/-.0076 (.1248 + .0000/-.0003) 1.575 (.062) 1.575 (.062) 1.575 (.062) 9.525 ± 0.787 (.375 ± .031) 25.222 ± 0.787 (.993 ± .031) 1.575 (.062) 1.575 (.062) 1.575 (.062) 30 ° ± 5 ° 6.858 ± 0.254 (.270 ± .010) R 16.256 (.640) MAX. 30 ° ± 5 ° 6.858 ± 0.254 (.270 ± .010) 12.7 ± 0.254 (.500 ± .010) R 16.256 (.640) MAX. 12.7 ± 0.254 (.500 ± .010) 22.225 ± 0.381 (.875 ± .015) DIA. 2 CCW WIPER 3 1 22.225 ± 0.381 (.875 ± .015) DIA. CW CLOCKWISE TOLERANCES: EXCEPT WHERE NOTED .50 .127 .0127 DECIMALS: .XX ± (.02) .XXX ± (.005) .XXXX ± (.0005) MM DIMENSIONS: (IN) CCW 2 CCW 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. 3 1 2 WIPER 3 1 CLOCKWISE CW CW 9.525 ± 0.787 (.375 ± .031) 3548 - 5-Turn Precision Potentiometer Panel Thickness Dimensions How To Order (For Bushing Mount Only) 3 2.46 - 3.81 (.097 - .150) 5 4 8 S - 2 A A - 1 0 3 / 1 0 3 A PANEL MODEL DESIGNATOR Code Description 3548 5-Turn HEX NUT INDEPENDENT LINEARITY Code Description A 0.25 % B 0.15 % ELEMENT TYPE Code Description H Hybritron® S Wirewound RESISTANCE** Code Element Type Resolution (%) 102 (1K ohms) — Hybritron® 502 (5K ohms) — Hybritron® 103 (10K ohms) Hybritron® — 201 (200 ohms) Wirewound 0.069 501 (500 ohms) Wirewound 0.054 102 (1K ohms) 0.043 Wirewound 202 (2K ohms) 0.044 Wirewound 502 (5K ohms) 0.038 Wirewound 103 (10K ohms) Wirewound 0.029 203 (20K ohms) Wirewound 0.023 503 (50K ohms) Wirewound 0.017 NO. OF SECTIONS Code Description 1 Single 2 Dual LOCKWASHER POT ANTI-ROTATION LUG Code Description A None B 180 ° 10.44 ± .07 DIA. (.411 ± .003) * Anti-rotation lug is not available for servo mount versions. R 7.42 (.292) ** For Single gang, use only first three digits. For Dual gang, use six digits separated by a "/". BUSHING MOUNT ADDITIONAL HOLE FOR ANTI-ROTATION PIN 1.60 +.08/-.03 DIA. (.063 +.003/-.001) Anti-rotation pin hole is shown at six o'clock position for reference only. The actual location is determined by the customer's application. Refer to the front view of the potentiometer to see the location of the optional A/R pin. Code A B C D G H Shaft FMS 13/16 ˝ 20.6 mm 13/16 ˝ 20.6 mm 13/16 ˝ 20.6 mm Code E Shaft FMS 3/8 ˝ Shaft Dia. 1/4 ˝ 6 mm 1/4 ˝ 6 mm 1/4 ˝ 6 mm Shaft Material Nickel Plated Brass Nickel Plated Brass Stainless Steel Stainless Steel Stainless Steel Stainless Steel SERVO MOUNT Shaft Dia. 1/8 ˝ Shaft Material Stainless Steel Bushing Dia. 3/8 ˝ 9 mm 3/8 ˝ 9 mm 3/8 ˝ 9 mm Bushing Material Brass Brass Bronze Bronze Bronze Bronze Slip Clutch N/A N/A N/A N/A Yes*** Yes*** *** Not available in dual gang version. Panel thickness and hole diameters are recommended for best fit. However, customers may adjust the dimensions to suit their specific application. DIMENSIONS: MM (INCHES) TOLERANCES: ± 0.127 (.005) Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com www.bourns.com REV. 10/19 “Hybritron” is a registered trademark of Bourns, Inc. 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. Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹ Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change ^P[OV\[UV[PJL