3548S-2AB-502A

3548 BOURNS | Alldatasheet

Document overview

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Technical content

Features

■ Wirewound and Hybritron® elements ■ High rotational life ■ Optional 0.15 % linearity ■ Optional A/R lug ■ RoHS compliant* ■ Suitable for use under side load ■ Designed for HMI and MMI applications ■ Dual gang option ■ Servo mount option 3548 - 5-Turn Precision Potentiometer *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. Electrical Characteristics1 Wirewound Element Hybritron ® Element (whichever is greater) Dielectric Withstanding Voltage (MIL-STD-202, Method 301) Power Rating (Voltage Limited By Power Dissipation) Environmental Characteristics1 Operating Temperature Range Vibration (15 Gs, 10 Hz to 2 kHz) Shock (100 Gs, 6 ms sawtooth) Rotational Life Mechanical Characteristics1 Torque Weight Shaft Side Load (Max. Allowable) Soldering Condition 1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. For other options, please consult factory. *RoHS COMPLIANT

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 3548 - 5-Turn Precision Potentiometer Product Dimensions Single Gang, Bushing Mount Dual Gang, Bushing Mount 30 ° ± 5 ° 12.649 ± 0.254 (.498 ± .010) MOUNTING FACE 16.256 (.640) MAX. R DIA. 22.479 ± 0.812 (.885 ± .032) DIA. 6.86 ± 0.25 (.270 ± .010) 1.52 (.060) 20.643 ± 0.787 (.813 ± .031) 7.92 ± 0.381 (.312 ± .015) SHAFT DIMENSION “A” (.405 +0.00/-.002) 12.7 ± 0.254 (.500 ± .010) 6.02 ± 0.381 (.237 ± .015) 0.813 (.032) 14.351 ± 0.381 (.565 ± .015) 18.796 ± 0.381 (.740 ± .015) MOUNTING SURFACE BUSHING TYPE “B” ADJ. SLOT: WIDE X 0.813 ± .0004 (.032 ± .010) DEEP 1.499 (.059) OPTIONAL ANTI- ROTATIONAL PIN AND 7.366 (.290) RADIUS 1.016 (.040) FROM MOUNTING SURFACE ON 26.467 ± 0.762 (1.042 ± .030) 34.798 ± 0.762 (1.370 ± .030) 39.243 ± 0.762 (1.545 ± .030) 40.259 ± 0.762 (1.585 ± .030) 22 11 33 1 3 CWCCW 1 3 CW CLOCKWISE CCW WIPER2 2 30 ° ± 5 ° 12.649 ± 0.254 (.498 ± .010) MOUNTING FACE 16.256 (.640) MAX. R DIA. DIA. 22.479 ± 0.812 (.885 ± .032) 19.812 ± 0.812 (.780 ± .032) 6.86 ± 0.25 (.270 ± .010) 1.524 ± 0.254 (.060 ± .010) 20.617 ± 0.787 (.812 ± .031) 7.92 ± 0.381 (.312 ± .015) SHAFT DIMENSION “A” (.405 +0.00/-.002) 12.7 ± 0.254 (.500 ± .010) 5.715 ± 0.381 (.225 ± .015) 0.762 (.030) 0.813 (.032) 14.046 ± 0.381 (.553 ± .015) 18.446 ± 0.381 (.726 ± .015) MOUNTING SURFACE BUSHING TYPE “B” ADJUSTMENT SLOT: WIDE X 0.813 (.032) DEEP 1.499 (.059) OPTIONAL ANTI- ROTATIONAL PIN AND 7.366 (.290) RADIUS 1.016 (.040) FROM MOUNTING SURFACE ON R 2 1 3 TOLERANCES: EXCEPT WHERE NOTED DECIMALS: .XX ± .XXX ± .XXXX ± DIMENSIONS: 1 3 CW CLOCKWISE CCW

2 WIPER

.50 (.02) .127 (.005) .0127 (.0005) MM (IN) Shaft Dimension "A" 6.34 +0/-0.022 6.00 +0/-0.022 6.34 +0/-0.007 6.00 +0/-0.007 6.34 +0/-0.007 6.00 +0/-0.007 Bushing Selection Code A B C D G H Bushing Type "B" 3/8 " 32-UNEF- 2A THD. M9 X 0.75-8g 3/8 " 32-UNEF- 2A THD. M9 X 0.75-8g 3/8 " 32-UNEF- 2A THD. M9 X 0.75-8g Shaft Material Nickel Plated Brass Nickel Plated Brass Stainless Steel Stainless Steel Stainless Steel Stainless Steel Bushing Material Brass Brass Bronze Bronze Bronze Bronze

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 3548 - 5-Turn Precision Potentiometer Product Dimensions Single Gang, Servo Mount Dual Gang, Servo Mount TOLERANCES: EXCEPT WHERE NOTED DECIMALS: .XX ± .XXX ± .XXXX ± DIMENSIONS: 1 3 CW CLOCKWISE CCW .50 (.02) .127 (.005) .0127 (.0005) MM (IN) 30 ° ± 5 ° 16.256 (.640) MAX. R 22.225 ± 0.381 (.875 ± .015) DIA. 25.222 ± 0.787 (.993 ± .031) 6.858 ± 0.254 (.270 ± .010) 1.575 (.062) 1.575 (.062) 1.575 (.375 ± .031) DIA. DIA.17.526 (.690) 12.7 ± 0.254 (.500 ± .010) 11.13 ± 0.381 (.438 ± .015) 19.46 ± 0.381 (.766 ± .015) 23.86 ± 0.381 (.939 ± .015) MOUNTING SURFACE 2 1 3 30 ° ± 5 ° 16.256 (.640) MAX. R 22.225 ± 0.381 (.875 ± .015) DIA. 6.858 ± 0.254 (.270 ± .010) 1.575 (.062) 1.575 (.062) 1.575 (.375 ± .031) DIA. DIA.17.526 (.690) 12.7 ± 0.254 (.500 ± .010) 11.43 ± 0.381 (.450 ± .015) 19.76 ± 0.381 (.778 ± .015) 24.206 ± 0.381 (.953 ± .015) MOUNTING SURFACE 22 11 33 31.88 ± 0.78 (1.255 ± .031) 40.21 ± 0.78 (1.583 ± .031) 44.65 ± 0.78 (1.758 ± .031) 45.67 ± 0.78 (1.798 ± .031) 1 3 CWCCW 1 3 CW CLOCKWISE CCW WIPER2 2

“Hybritron” is a registered trademark of Bourns, Inc. Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. 3548 - 5-Turn Precision Potentiometer Panel Thickness Dimensions (For Bushing Mount Only) PANEL POT LOCKWASHER HEX NUT 2.46 - 3.81 (.097 - .150) 1.60 +.08/-.03 (.063 +.003/-.001) 10.44 ± .07 (.411 ± .003) DIA. DIA. ADDITIONAL HOLE FOR ANTI-ROTATION PIN MM (INCHES)DIMENSIONS: 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. Panel thickness and hole diameters are recommended for best fit. However, customers may adjust the dimensions to suit their specific application. TOLERANCES: ± 7.42 (.292)R 0.127 (.005) How To Order REV. 10/11 3548S-2AA-103/ 103A Code H S

Description

Hybritron® Wirewound ELEMENT TYPE Code A B 180 ° ANTI-ROTATION LUG Code 3548 NO. OF SECTIONS Code Element Type Hybritron® Hybritron® Hybritron® Wirewound Wirewound Wirewound Wirewound Wirewound Wirewound Wirewound Wirewound Resolution 0.069 0.054 0.043 0.04 0.038 0.029 0.023 0.017 RESISTANCE** Code A B 0.25 % 0.15 % INDEPENDENT LINEARITY 102 (1K ohms) 502 (5K ohms) 103 (10K ohms) 201 (200 ohms) 501 (500 ohms) 102 (1K ohms) 202 (2K ohms) 502 (5K ohms) 103 (10K ohms) 203 (20K ohms) 503 (50K ohms) ** For Single gang, use only first three digits. For Dual gang, use six digits separated by a "/". * Anti-rotation lug is not available for servo mount versions. * Not available in dual gang version. Code A B C D G H Shaft FMS 13/16 " 20.6 mm 13/16 " 20.6 mm 13/16 " 20.6 mm Shaft Material Nickel Plated Brass Nickel Plated Brass Stainless Steel Stainless Steel Stainless Steel Stainless Steel Shaft Dia. 1/4 " 6 mm 1/4 " 6 mm 1/4 " 6 mm 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*** BUSHING MOUNT Code E Shaft FMS 3/8 " Shaft Material Stainless Steel Shaft Dia. 1/8 " SERVO MOUNT