PL IA NT Features CO M ■ *R oH S ■ ■ ■ ■ ■ Compact Lightweight Long life Infinite resolution Free shaft rotation AC or DC ■ ■ ■ ■ Shaft options available Flexible wire leads Economical RoHS compliant* 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) 25.4 (1.00) 4.6 ± 0.25 (.18 ± .010) 2 PLCS. MAXIMUM FILLET 2.13 + 0.02/ – 0.50 DIA. (.084 + .001/ – .020) 1.52 (.060) 3 ELECTRICALLY INSULATED LEADWIRES 152.40 MINIMUM LENGTH (28 AWG INSULATED CONDUCTOR) (6.00) 8.28 ± 0.38 (.326 ± .015) Model Style SHAFT EXTENDED GREEN 3 CHAMFER: 6.99 ± 0.25 45° X 0.25 (0.10) (.275 ± .010) 2.36 DIA. (.093) RED 2 WIPER YELLOW 1 TOLERANCES: ± .010 EXCEPT WHERE NOTED (0.25) WIRING DIAGRAM DIMENSIONS ARE: Resistance Value Standard Resistance Table Resistance (Ohms) 1,000 2,500 5,000 10,000 20,000 50,000 5.60 7.60 (.220) (.299) FULL THREAD 31.75 (1.250) How to Order 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) #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 #2 SCREW CLEARANCE 56.39 (2.22) Specifications are typical. Contact factory for special requirements. † Specifications applicable from 5 % to 95 % of electrical travel. 3048 L - 2 - 502 9.14 (.36) Resistance Code 102 252 502 103 203 503 REV. 09/04 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify device performance in their specific applications. MM (INCHES)