Axiohm Series Centohm Coated Axial Lead Wirewound Resistors 1.5 / 38.1 A B C Ohmite's Axiohm resistors are Centohm coated for maximum reliability. These all-welded units are characterized by their low temperature coefficients and resistance to thermal shock, making them ideal for a wide range of electrical and electronic applications. D Watt Rating Form 1C 2C 3C 4C 5C 7C 10C Resistance Range Standard Dielectric Maximum () Resistance Withstanding Voltage A B 1/32" Min. Max. Tolerance Voltage Rating 1/16" 5/161/32 3/32 0.1 4K 5% 500 100 3/8 7/32 0.1 10K 5% 500 300 1/2 7/32 0.1 20K 5% 500 450 11 7/32 0.1 30K 5% 500 600 /16 15/16 7/32 0.1 40K 5% 500 800 5/16 0.1 50K 5% 500 875 1 5/16 0.1 90K 5% 500 1600 19/16 SPECIFICATIONS Leads: Tinned Copperweld Derating Linearly from 100% @ +25C to 0% @ +350C. Electrical Tolerance: 5% (Std) down to 0.1% available. Power rating: Based on 25C free air rating (other wattages available). Material Coating: Flameproof proprietary Centohm Core: Ceramic Element: Copper-nickel alloy or nickel-chrome alloy depending on resistance value End Cap: Stainless steel ORDERING INFORMATION Non-Inductive Option (Add N) 5NCJ10K Wattage 14 Coating "C" for Standard Centohm Tolerance J = 5% (standard) H = 3% F = 1% D = .5% Q = .25% B = .1% Example: Std 3 watt, 10K 5% = 3CJ10K Resistance () use "K" for 1000 multiplier; use "R" for decimal point D C max clean B&S lead to (dia.) clean lead 13/32 #24 (.020") 15/32 #20 (.032") 19/32 #20 (.032") 13/16 #20 (.032") #20 (.032") 11/16 #20 (.032") 11/8 11 #20 (.032") 1 /16 FEATURES * Welded construction * Inorganic and non-hygroscopic, Centohm coating seals and protects the resistance wire. * Centohm coating is flameproof and withstands temperatures in excess of 2000F. * Exceeds MIL-R-26 moisture requirements * Centohm Resistors are designed to meet and exceed performance characteristics of vitreous enamel resistors. * Centohm is more cost effective than vitreous enamel. * 5% resistance tolerance OPTIONS Overload: Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times rated wattage for 5 seconds. Temperature coefficient: 0 30ppm /C above 10 0 100ppm/C 1 to 10 0 200ppm/C below 1 Noninductive Resistors: These specially designed versions are wound using the Ayrton-Perry method. Controlled or Limited Inductance Resistors: Using special single windings, these versions limit the inductance to a specified value. Resistance Tolerances: Options include 5%, 1%, 0.5%, 0.25%, and 0.1% resistors. Lead Sizes: Alternate lead diameters available. Tape and Reel: Resistors taped for automatic insertion. Call the factory for size, quantity and ordering information ENVIRONMENTAL PERFORMANCE Test Maximum Temperature Coefficient 30ppm/C above 10 100ppm/C 1 to 10 200ppm/C below 1 Thermal Shock Short Time Overload Dielectric Low Temperature Storage High Temperature Exposure Moisture Resistance Shock Vibration Load Life Terminal Strength (2% + .05)R (2% + .05)R (0.1% + .05)R (2% + .05)R (2% + .05)R (2% + .05)R (2% + .05)R (2% + .05)R (3% + .05)R (1% + .05)R R values are maximums based on MIL-R-26 testing requirements at 350C. Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 * Tel. 1-866-9-OHMITE * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com