*R oH S CO M PL IA N T Features ■ Compact ■ Flexible wire leads ■ Lightweight ■ Economical ■ Long life ■ RoHS compliant* ■ Infinite resolution ■ Free shaft rotation ■ AC or DC ■ Shaft options available 3048 Linear Motion Potentiometer Specifications† Standard Electrical Travel ............................. 0.2, 0.3, 0.4, 0.5 in. (5.08, 7.62, 10.16, 12.70 mm) Standard Resistances .......... 1K ohms to 50K ohms (± 20 %) Independent Linearity ....................± 5 % Resolution.................................... Infinite Power Rating @ 70 °C (158 °F) Range 2, 3............................ 0.12 watt Range 4, 5............................ 0.25 watt Operating Temperature Range ................................-55 °C to +125 °C Temperature Coefficient ... 1000 PPM/°C Insulation Resistance ........ 50 megohms @ 500 VDC Backlash ................................. Negligible Shaft Actuating Force ............ 4 oz. max. @ 70 °F Life ..................................500,000 cycles Shock............................ 50 G for 7 msec Vibration .........................20 G, 10-2 kHz Marking .........Manufacturer’s trademark, resistance code, wiring diagram, date code, manufacturer’s model number and style Product Dimensions 13.5 (.53) 11.18 ± 0.38 (.44 ± .015) 4.6 ± 0.25 (.18 ± .010) 2 PLCS. #2-56 UNC-2A THREADED SHAFT (STANDARD). SHAFT SHOWN IN RETRACTED POSITION 2.67 ± 0.25 (.11 ± .010) 3.18 ± 0.38 2.34 (.125 ± .015) DIA. (.092) 2 MOUNTING HOLES 5.60 #2 SCREW CLEARANCE (.220) 56.39 (2.22) 7.60 FULL THREAD (.299) 31.75 (1.250) 3 ELECTRICALLY INSULATED LEADWIRES 152.40 MINIMUM LENGTH (28 AWG INSULATED CONDUCTOR) (6.00) 8.28 ± 0.38 (.326 ± .015) How to Order YELLOW 1 GREEN 3 SHAFT EXTENDED 6.99 ± 0.25 (.275 ± .010) TOLERANCES: ± .010 EXCEPT WHERE NOTED (0.25) DIMENSIONS: WIRING DIAGRAM CHAMFER: 0.25 45° X (0.10) 2.36 DIA. (.093) RED 2 WIPER 3048 L - 2 - 502 2.13 +0.02/-0.50 DIA. (.084 +.001/-.020) (THIS DIMENSION APPLIES BEYOND THE THREADED AREA TO THE FULL DIAMETER. SEE THE #2-56 THREAD NOTE ABOVE.) 2.36 +.025/-.013 (.093 +.001/-.005) 1.52 MAXIMUM FILLET (.060) Specifications are typical. Contact factory for special requirements. † Specifications applicable from 5 % to 95 % of electrical travel. Model Style Range (Travel) 2 = 0.2 ” (5.08 mm) 3 = 0.3 ” (7.62 mm) 4 = 0.4 ” (10.16 mm) 5 = 0.5 ” (12.70 mm) Resistance Value Stainless steel shaft is available upon request. 9.14 (.36) 25.4 (1.00) MM (INCHES) Standard Resistance Table Resistance (Ohms) Resistance Code 1,000 2,500 5,000 10,000 20,000 50,000 102 252 502 103 203 503 REV. 01/13 *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.