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| TC Series (R) This product has been DISCONTINUED PECOS Resistors Thick Film on Porcelainized Steel Substrate C PECOS(R) stands for Porcelain Enamel Coating on Steel. It is a plate resistor system utilizing thick film ruthenium oxide on a porcelain coated steel substrate. Copper plated silver conductors are employed and the resistive element is protected by a glass passivation layer. These resistors offer low inductance (50nh @1MHz) and very high power densities (15W/in2). Being PC-board mountable, they are economic to install and best suited for applications under 200V operating. SPECIFICATIONS Material Substrate: PECOS(R) (Porcelain Enamel Coating on Steel) Resistor: Ruthenium Oxide Coating: Glass Terminals: Solder Plated Phosphor Bronze, riveted in place and electrically connected with high temperature solder. Thermal Conductivity: 60 Watts/ Meter/C, x-y direction Temperature Coefficient: 150 ppm/C 1 Electrical Ohmic Range: 1-2500 Tolerance: 1-5% to 20% Power Rating: Based on 25C free air Maximum Operating Voltage: 200 VDC Overload: Five times rated power, as long as the one second average dissipation does not exceed the wattage rating. R: 2%, 2000 hours 0.28"/7.11mm typical A E B D 0.41"/10.41mm FEATURES * 15W/in2 Power Density * Low Inductance * Easy to Install T Terminal Detail: 0.2"/5.08mm (0.1"/2.54mm for 10 watt) 0.2"/5.08mm 0.04" diam. Pins (corner pins can be omitted at customer request) DERATING CURVE Percent Rated Watts Series TC010PA TC020PA TC025PA TC050PA TC100PA Watts 10 A 0.300 / 7.62 B Dimensions (in. / mm) C D 100 E 80 60 40 20 0 25 50 100 150 200 250 300 Ambient Temperature, C 350 0.55 / 13.97 1.25 / 31.75 0.29 / 7.37 0.50 / 12.70 1.40 / 35.56 0.37 / 9.40 1.00 / 25.40 1.25 / 31.75 0.37 / 9.40 1.40 / 35.56 2.50 / 63.50 0.37 / 9.40 1.40 / 35.56 3.35 / 85.09 0.37 / 9.40 1.70 / 43.18 20 0.600 / 15.24 1.10 / 27.94 25 1.000 / 25.40 1.60 / 40.64 50 1.000 / 25.40 1.75 / 44.45 100 1.300 / 33.02 2.55/ 64.77 O R D E R I N G I N F O R M AT I O N E = RoHS compliant Available Jan. 2006 Series Power Rating Package PA = standard Resistance () 5R00 = 5.0 50R0 = 50.0 Tolerance J = 5% K = 10% L* = 20% *20% Values are not laser trimmed and offer enhanced surge handling. 2 Ohmite Manufacturing Company 3601 Howard St., Skokie, IL 60076 * Tel. 847-675-2600 * Fax 847-675-1505 * www.ohmite.com * info@ohmite.com |
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