The model 248/249 is a value priced panel control and has proven high performance characteristics in a cost effective package. They are designed to become the choice when seeking high quality, inexpensive panel or PCB mounting potentiometers. The model 248 is conductive plastic with ±20% resistance tolerance and the 249 is cermet with ±10% tolerance. The 248 is 0.5 watts at 70°C with a temperature coefficient of 1000 ppm/°C. The 249 is 1.0 watts at 70°C with a temperature coefficient of 100 ppm/°C. Both have 295° (±5°) mechanical rotation with 265° (±5°) electrical rotation. Rotational Life: 50,000 cycles. Shaft: Plated brass. The housing and rear lid are flame-retardant plastic. Terminals: Phosphor bronze with solder plated. Operating Temperature: –55°C to +125°C. Load Life: 1000 hours at 70°C.
| Allied Electronics, Inc. | |
|---|---|
| Product Category | Potentiometers, Rheostats, and Trimmers |
| Product Number | 70219117 |
| Product Name | Pot;Cermet;Rest 1 Kilohms;PCB;1 Turn;Linear;Pwr-Rtg 1W;Shaft Dia 0.25in |
| Technology / Construction | Cermet |
| Mounting / Packaging | ThroughHole; PCB |
| Potentiometer Type | Standard Potentiometer |
| Configuration | Single Turn |
