HS/HSN Series Aluminum Housed Axial Terminal Wirewound, Industrial/Commercial Grade F e at u r e s •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. 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. S ERIE S S P ECI F ICATI O N S Series HS100 HSN100 HS250 HSN250 Power Rating (Watts) 100 100 250 250 Resistance Range (Ohms) 0.05 - 29.4K 1.0 - 14.7K 0.10 - 35.7K 1.0 - 17.4K Max. Working Voltage 1900 1350 2300 1625 characteristics Housing Aluminum with hard anodic coating Derating Curve Internal Coating Silicone 100 Core Ceramic Terminals Solder-coated axial 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 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 80 Percent Rated Watts Derating Linearly from 100% @ +25°C to 0% @ +275°C. Mounted to aluminum chassis 60 40 Unmounted 20 0 0 25 Dielectric withstanding voltage 4500VAC 50 75 100 125 150 175 200 225 250 275 Ambient Temperature, °C (continued) 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 131 HS/HSN Series 25 & 50 watt D G N I Aluminum HousedAC Axial Terminal H Wirewound, Industrial/Commercial Grade E L K J in. (mm) BF DIMENSIONS M 100 & 250 watt D C A G N I H M E BF L J K HS100 / HSN100 100 watt HS250 / HSN250 250 watt Dim. A 2.75 ± .010 (69.85 ± .254) 3.875 ± .010 (98.425 ± .254) Dim. C 3.50 ± .031 (88.90 ± .787) 4.5 ± .031 (114.30 ± .787) Dim. B 2.25 ± .010 (57.15 ± .254) Dim. D 5.478 ± .093 (139.14 ± 2.36) Dim. F 2.812 ± .031 (71.42 ± .787) Dim. E 1.812 ± .031 (46.02 ± .787) Dim. G nickel-plated brass nut, stainless steel stud 2.125 ± .031 (53.98 ± .787) 3.0 ± .031 (76.20 ± .787) 2.188 ± .031 (55.58 ± .787) Dim. I 0.770 ± .015 (19.56 ± .381) 0.955 ± .015 (24.26 ± .381) Dim. K 0.188 ± .010 (4.78 ± .254) 0.188 ± .010 (4.78 ± .254) Dim. H 1.88 ± .031 (4.78 ± .787) 0.375 ± .031 (9.52 ± .787) Dim. L Dim. M Dim. N 0.219 ± .031 (5.56 ± .787) 12 - 24 UNC - 2A THD 0.989 ± .031 (25.12 ± .787) O R D ERI N G I N F O R M ATI O N Non-Inductive Winding Optional (blank = std. winding) HSN100JR05E 132 6.73 ± .093 (170.94 ± 2.36) 1.75 ± .031 (44.45 ± .787) Dim. J Series 2.5 ± .010 (63.50 ± .254) 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 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 0.250 ± .031 (6.35 ± .787) 0.312 ± .031 (7.92 ± .787) 0.25 ± .031 (6.35 ± .787) 1/4 - 20 UNC - 2A THD 1.25 ± .031 (31.75 ± .787)