AS SERIES SEMI-PRECISION POWER WIREWOUND RESISTOR Alloy resistance wire wound 1/4 watt to 10 watts to specic parameters including TCR s from 5%, 3%, 1%, .5% tolerance Alpha - All welded Digital 0.1 ohm to 175K ohms cap Marking and lead Resistance wire TCR 20 ppm/C Silicone conformal RoHS-compliant version available coating Heat conducting ceramic SPECIFICATIONS: Commercial Range Non-Inductive Range Available Resistance Power Rating 275C Similar (ohms) (ohms) (ohms) Max. Hot Spot MIL-R-26 0.5%, 1% 3%, 5% Max. 125C 25C Min. Max. Min. IRC Type Style RW81 * 0.5 1 0.1 1.0K * AS-1/4 1-1K 0.1-1K * 0.5 1 0.1 6.0K * AS-1/2 1-6K 0.1-6K 3.8K 1 2 0.1 7.5K 0.1 AS-1 RW70U 1-7.5K 0.1-7.5K * 1 2 .05 2K * AS-1C 1-2K .05-2K RW79U 10K 2 3 0.1 20K 0.5 AS-2 1-20K 0.1-20K 12K 3 4 0.1 24K 0.5 AS-2B 1-24K 0.1-24K 7.5K 2 3 0.1 18K 0.2 AS-2C 1-18K 0.1-18K 15K 3 5 0.1 30K 0.5 AS-3 1-30K 0.1-30K RW74U/ 30K 5 7 0.1 60K 0.8 AS-5 1-60K 0.1-60K 45K 7 9 0.1 90K 1.0 AS-7 1-90K 0.1-90K 50K RW78U 10 14 0.1 175K 3.0 AS-10 1-175K 0.1-175K Inductance of AS-1/2 is less than 1H at 1MHz. * Typical inductance of AS-1C <5 ohms is < 1H. To order non-inductive types, add the prex. Example: NAS-1, NAS-2C, etc. Lower values available upon request. DIMENSIONS (Inches and (mm)): Please note lead NOTE: length dimension Coating and marking is resistant to normal degreasing. change on the Consult factory for special requirements. following two items only: AS-2B 1.3 min AS-2C 1.3 min A0.032 B (max) C (max) D (Lead Diameter) IRC Type 0.250 (6.4) 0.094 (2.4) 0.312 (7.9) 0.020 (0.5) AS-1/4 0.312 (7.9) 0.094 (2.4) 0.375 (9.5) 0.020 (0.5) AS-1/2 0.367 (9.3) 0.125 (3.2) 0.429 (10.9) 0.020 (0.5) 0.025 (0.64) AS-1 0.256 (6.5) 0.115 (2.9) 0.303 (7.7) 0.025 (0.64) 0.032 (0.8) AS-1C 0.480 (12.2) 0.250 (6.3) 0.600 (15.2) 0.032 (0.8) AS-2 0.540 (13.7) 0.219 (5.6) 0.663 (16.6) 0.032 (0.8) AS-2B 0.489 (11.0) 0.157 (4.0) 0.594 (15.1) 0.032 (0.8) AS-2C 0.687 (17.5) 0.282 (7.2) 0.812 (20.6) 0.040 (1.0) AS-3 0.875 (22.2) 0.344 (8.8) 0.980 (24.9) 0.040 (1.0) AS-5 1.250 (31.8) 0.344 (8.8) 1.375 (35.0) 0.040 (1.0) AS-7 1.812 (46.0) 0.385 (9.8) 1.937 (49.2) 0.040 (1.0) AS-10 General Note IRC reserves the right to make changes in product specication without notice or liability. All information is subject to IRCs own data and is considered accurate at time of going to print. WIREWOUND AND FILM TECHNOLOGIES DIVISION A subsidiary of TT electronics 1005 736 Greenway Road Boone, North Carolina 28607-1860 Tel: 828-264-8861 Fax: 828-264-8866 www.irctt.comSELECTED PULSE-HANDLING POWER DERATING: CAPABILITY 125C: 2 A , 1 C , 2 2 C 5 , 1 0 2 B 1 Ambient Temperature (C) Resistance (ohms) ENVIRONMENTAL TESTING AT 25C: TEST CONDITION MAX R Load Life 1000 hours 1.0% Moisture Resistance 1.0% Temperature Cycle 0.5% Short Time Overload 0.5% Low Temperature Operation 0.5% Solder Heat 0.25% Shock 0.5% Vibration 0.5% HOW TO ORDER: Sample Part No.: AS - 3 27R0 1% LF Type Power 3 =3 watts (See specication chart for other power ratings) Resistance Value Expressed in ohms (Standard EIA/MIL Values) Tolerance 5%, 3%, 1%, 0.5% Lead Free Construction WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road Boone, North Carolina 28607-1860 Tel: 828-264-8861 Fax: 828-264-8866 www.irctt.com A subsidiary of TT electronics 1005 Percent of 125C Power Rating Energy (watts-second)