Features Multifinger wiper for better contact resistance Arrow and graduations for repeatable settings "O" ring seal for solvent and aqueous washing IC style pins for easier board insertion Solid end stop Specifications Electrical Effective Travel: 25 turns nom Resistance Range: 10 Ohms to 2 Meg Ohm Resistance Tolerance: ±10% End Resistance: Less than 2 Ohms Temperature Coefficient of Resistance:       100ppm/°C. 100 Ohms to 2 Meg Ohms       0 to +250ppm/°C. below 100 Ohms Power Rating: 1/2W @ +70°C derated to 0W @ +125°C Dielectric Withstanding Voltage:       1000V AC at sea level       250V AC at 80,000 feet (24,400 meters) Insulation Resistance: 1000 Meg Ohms min Contract Resistance Variation: 2% or 20 Ohms, whichever is greater Mechanical Stop: Contact idles at stop Operating Torque: 3mNm nom Resistance Element: Cermet 2-Terminal Adjustability: 0.05% RT 3-Terminal Adjustability: 0.01% of applied voltage Environmental Operating Temperature: -55° to +125°C Electrical Endurance: 1000 hr. Mechanical Life: 200 cycles

Part Numbering

NTE Part No.	Value Ohms	Adjust	Diag. No.
500-0240	10	Top	T8
500-0241	20	Top	T8
500-0242	50	Top	T8
500-0243	100	Top	T8
500-0244	200	Top	T8
500-0245	500	Top	T8
500-0246	1K	Top	T8
500-0247	2K	Top	T8
500-0248	5K	Top	T8
500-0249	10K	Top	T8
500-0250	20K	Top	T8
500-0251	25K	Top	T8
500-0252	50K	Top	T8
500-0253	100K	Top	T8
500-0254	200K	Top	T8
500-0255	250K	Top	T8
500-0256	500K	Top	T8
500-0257	1M	Top	T8
500-0258	2M	Top	T8

Dimensional Drawing

T8

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