AS-1

Semi-Precision Power Wirewound Resistor AS Series Welwyn Components • 0.25 to 10 watts • Tolerance down to ±0.5% • 0.1 ohm to 175K ohms • Resistance wire TCR ±20 ppm/°C Electrical Data Type AS-1/4 AS-1/2 AS-1 AS-1C AS-2 AS-2B AS-2C AS-3 AS-5 AS-7 AS-10 RW68V/ RW78U RW74U/ RW67U 7 10 9 14 0.1 0.1 90K 175K 1.0 3.0 45K 50K 1-90K 1-175K 0.1-90K 0.1-175K RW-69V/ RW79U 3 2 3 5 4 3 5 7 0.1 0.1 0.1 0.1 24K 18K 30K 60K 0.5 0.2 0.5 0.8 12K 7.5K 15K 30K 1-24K 1-18K 1-30K 1-60K 0.1-24K 0.1-18K 0.1-30K 0.1-60K RW70U Equivalent MIL-R-26 Style RW81 Power Rating (watts) 125°C 25°C 0.5 0.5 1 1 2 1 1 2 2 3 Commercial Range (ohms) Min. Max. 0.1 0.1 0.1 .05 0.1 1.0K 6.0K 7.5K 2K 20K Non-Inductive Range (ohms) Min. Max. * * 0.1 * 0.5 * * 3.8K * 10K Available Resistance (ohms) 0.5%, 1% 3%, 5% 1-1K 1-6K 1-7.5K 1-2K 1-20K 0.1-1K 0.1-6K 0.1-7.5K .05-2K 0.1-20K Inductance of AS-1/2 is less than 1µH at 1MHz. To order non-inductive types, add the prefix ‘N’. Example: NAS-1, NAS-2C, etc. * Typical inductance of AS-1C