The HS/HSN Series offers greater power capacity (100 and 250 watts) in the same design format as Ohmite’s 89 Series. HS/HSN Series maintains the same construction, materials, and manufacturing techniques as the 89 Series. As a made-to-order product, it is recommended for higher volume applications. Features • Standard winding (Model HS) • Non-inductive winding (Model HSN) • Molded construction for total environmental protection • Complete welded construction • Mounts on chassis to utilize heat-sink effect • High stability at conventional power ratings • Flat marking surface for easy identification • RoHS compliant; add “E” suffix to part number to specify. D C A Material E J 100 & 250 watt D C A E I H BF L K J nickel-plated brass nut, stainless steel stud Power Rating (Watts) 100 100 250 250 Series HS100 HSN100 HS250 HSN250 Resistance Range (Ohms) .05 - 29.4K 1.0 - 14.7K .10 - 35.7K 1.0 - 17.4K Max. Working Voltage 1900 1350 2300 1625 D e r at i n g C u r v e HS250 / HSN250 250 watt 3.875 ± .010 (98.425 ± .254) 2.5 ± .010 (63.50 ± .254) 4.5 ± .031 (114.30 ± .787) 6.73 ± .093 (170.94 ± 2.36) 2.125 ± .031 (53.98 ± .787) 3.0 ± .031 (76.20 ± .787) 2.188 ± .031 (55.58 ± .787) 0.250 ± .031 (6.35 ± .787) 0.955 ± .015 (24.26 ± .381) 0.312 ± .031 (7.92 ± .787) 0.188 ± .010 (4.78 ± .254) 0.25 ± .031 (6.35 ± .787) 1/4 - 20 UNC - 2A THD 1.25 ± .031 (31.75 ± .787) 100 80 Percent Rated Watts in. (mm) Dim. A Dim. B Dim. C Dim. D Dim. E Dim. F Dim. G Dim. H Dim. I Dim. J Dim. K Dim. L Dim. M Dim. N G N M dimensions HS100 / HSN100 100 watt 2.75 ± .010 (69.85 ± .254) 2.25 ± .010 (57.15 ± .254) 3.50 ± .031 (88.90 ± .787) 5.478 ± .093 (139.14 ± 2.36) 1.812 ± .031 (46.02 ± .787) 2.812 ± .031 (71.42 ± .787) 1.75 ± .031 (44.45 ± .787) 1.88 ± .031 (4.78 ± .787) 0.770 ± .015 (19.56 ± .381) 0.375 ± .031 (9.52 ± .787) 0.188 ± .010 (4.78 ± .254) 0.219 ± .031 (5.56 ± .787) 12 - 24 UNC - 2A THD 0.989 ± .031 (25.12 ± .787) BF Aluminum Housed Axial Terminal K M Wirewound, Industrial/Commercial Grade L Electrical Tolerance: ±1% and ±5% (other tolerances available). Power rating: Rating is based on chassis mounting area and temperature stability. Proper heat sink: 12” x 12” x 0.125 Aluminum panel. Maximum ohmic values: See chart. Overload: 5 times rated wattage for 5 seconds. Temperature coefficient: Under 1Ω: ±90 ppm/°C 1 to 9.99Ω: ±50 ppm/°C 10Ω and over: ±30 ppm/°C. Dielectric withstanding voltage: 4500VAC. I H HS/HSN Series S p e cific a t i o n s Housing: Aluminum with hard anodic coating. Internal Coating: Silicone. Core: Ceramic. Terminals: Solder-coated axial Derating: Linearly from 100% @ +25°C to 0% @ +275°C. G N Mounted to aluminum chassis 60 40 Unmounted 20 0 0 25 50 75 100 125 150 175 200 225 250 275 Ambient Temperature, °C OR D ERING IN F ORMATION Non-Inductive Winding Optional (blank = std. winding) HSN100JR05E Series Wattage Tolerance Ohms F = 1% 100 R05 = J = 5% 250 1R0 = K=10% 10R = 100 = 10K = 14K7 = RoHS 0.05Ω Compliant 1.0Ω 10Ω 100Ω 10,000Ω 14,700Ω Check product availability at www.ohmite.com To see the latest in resistor technology click on the “What’s New” tab at ohmite.com Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 27