AS-327R0 ETC1

Document overview

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Technical content

D (Lead Diameter) 0.020 (0.5) 0.020 (0.5) 0.032 (0.8) 0.032 (0.8) 0.032 (0.8) 0.040 (1.0) 0.040 (1.0) 0.040 (1.0) 0.040 (1.0) D C A 1.50 min. (38.1) B SEMI-PRECISION POWER WIREWOUND RESISTOR AS SERIES

  • • • • • 1/4 watt to 10 watts
  • •••• 0.1 ohm to 175K ohms
  • • • • • Resistance wire TCR ±20 ppm/°C SPECIFICATIONS: Inductance of AS-1/2 is less than 1µH at 1MHz. * Typical inductance of AS-1C <5 ohms is < 1µH. To order non-inductive types, add the prefix "N". Example: NAS-1, NAS-2C, etc. Lower values available upon request. DIMENSIONS (Inches and (mm)): Please note lead length dimension change on the following two items only: AS-2B 1.3 min AS-2C 1.3 min NOTE:
  • Coating and marking is resistant to normal freon degreasing. Consult factory for special requirements.
  • AS marking available in Alpha Numeric or Colorbanding - identification available. Heat conducting ceramic substrate Alpha - Digital Marking Silicone conformal coating All welded cap and lead assembly Alloy resistance wire wound to specific parameters including TCR's from ±20 to +5500 ppm/°C Equivalent MIL-R-26 Style RW81 RW70U RW-69V/ RW79U RW74U/ RW67V RW68V/ RW78U Power Rating 275°C Max. Hot Spot (watts) Commercial Range (ohms) Non-Inductive Range (ohms) Available Resistance (ohms) 125°C 0.5 0.5 25°C Min. 0.1 0.1 0.1 .05 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Max. 1.0K 6.0K 7.5K 20K 24K 18K 30K 60K 90K 175K Min. 0.1 0.5 0.5 0.2 0.5 0.8 1.0 3.0 Max. 3.8K 10K 12K 7.5K 15K 30K 45K 50K 0.5%, 1% 1-1K 1-6K 1-7.5K 1-2K 1-20K 1-24K 1-18K 1-30K 1-60K 1-90K 1-175K 3%, 5% 0.1-1K 0.1-6K 0.1-7.5K .05-2K 0.1-20K 0.1-24K 0.1-18K 0.1-30K 0.1-60K 0.1-90K 0.1-175K IRC 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 A ±0.032 0.250 (6.4) 0.312 (7.9) 0.367 (9.3) 0.256 (6.5) 0.480 (12.2) 0.540 (13.7) 0.489 (11.0) 0.687 (17.5) 0.875 (22.2) 1.250 (31.8) 1.812 (46.0) *Leads 60/40 are solder plated. AS-1C leads are copper. All others are 40% conductivity copper sheathed steel. B (max) 0.094 (2.4) 0.094 (2.4) 0.125 (3.2) 0.115 (2.9) 0.250 (6.3) 0.219 (5.6) 0.157 (4.0) 0.282 (7.2) 0.344 (8.8) 0.344 (8.8) 0.385 (9.8) C (max) 0.312 (7.9) 0.375 (9.5) 0.429 (10.9) 0.303 (7.7) 0.600 (15.2) 0.663 (16.6) 0.594 (15.1) 0.812 (20.6) 0.980 (24.9) 1.375 (35.0) 1.937 (49.2) IRC 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 WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com

AS-1/4, 1/2, 1 AS-3 AS-2A, 2C AS-2 AS-5, 10 AS-7, 25 0 40 80 120 160 200 100 150 200 250 275 AS-7, 10 AS-5 AS-2A, 2C AS-2 AS-2B AS-1/2 AS-1/4 POWER DERATING: ENVIRONMENTAL TESTING AT 25°C: HOW TO ORDER: Sample Part No.: AS-3 27R0 0.25% Type Power 3 =3 watts (See specification chart for other power ratings) Resistance Value Expressed in ohms (Standard EIA/MIL Values) Tolerance MAX ΔΔΔΔΔ R 1.0% 1.0% 0.5% 0.5% 0.5% 0.25% 0.5% 0.5% TEMPERATURE RISE @ 125°C: Ambient Temperature (°C) Percent of 125°C Power Rating Percent of 25°C Power Rating Hot Spot Temperature (°C) TEMPERATURE RISE @ 25°C: 0.1 0.2 0.5 1 2 5 10 AS-2A AS-3 AS-2 AS-2B AS-1 AS-2C AS-1/2 AS-1/4 SELECTED PULSE-HANDLING CAPABILITY @ 125°C: Resistance (ohms) Energy (watts-second) AS-3, AS-1, AS-2 AS-2B WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com 0 2 04 06 08 0 1 0 0 125 150 200 250 275 AS-7, 10 AS-5 AS-3, 2A, 2C AS-2 AS-2B AS-1/2 AS-1/4 Percent of 125°C Power Rating Hot Spot Temperature (°C) AS2A, AS2C AS-3, AS-5 0 40 80 120 160 200 AS-7, 2B