Potentiometer/Trimmer Selector Guide| Potentiometers - Single Turn | | Series | SPRU/RV8NAY | 149 | 249 | 357 |  |  |  |  | | Shaft Diameter | .125 (3.2) | .125 (3.17), .250 (6.35) | .125 (3.17), .250 (6.35) | .2497 (6.34) | | Element Type | Carbon | Cermet | Cermet | Conductive Plastic | | Resistance Range | 100 Ohms to 2.5 Meg Ohms | 100 Ohms to 2 Meg Ohms | 100 Ohms to 1 Meg Ohms | 1K Ohms to 50K Ohms | | Resistance Tolerance | ±10% | ±10% | ±10% | ±20% | | Linearity | - | ±5% | ±5% | ±2% | | TC PPM/°C | - | ±150% | ±100% | ±600% | | Power Rating | 1/2W @ +70°C | 1W @ +85°C | 1W @ +70°C | 1W @ +70°C | | Mechanical Rotation | 295° | 295° | 295° | 360° (Continuous) | | Temperature Range | -65° to +125°C | -55° to +150°C | -55° to +125°C | -55° to +125°C | | Rotation Life | 25,000 Cycles | 25,000 Cycles | 25,000 Cycles | 2,000,000 Revolutions |
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