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TA305 Datasheet(PDF) 1 Page - Ohmite Mfg. Co. |
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TA305 Datasheet(HTML) 1 Page - Ohmite Mfg. Co. |
1 / 2 page 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com THick Film AluminA TA Series Power Chip® Thick Film on Alumina Substrate Series Wattage TA203 3.0 TA303 3.0 Substrate Alumina Resistor Thick Film Coating Glass Terminals Solder Plated Phosphor Bronze Thermal Conductivity 20 Watts/Meter/°C Temperature Coefficient 1 ohm: 450 ppm/°C 1 to 100Ω: 100 ppm/°C 101Ω and up: 50 ppm/°C Tolerance ±1%, ±5% and ±10% Power Rating Based on 25°C free air Resistance Range 0.25 ohm to 10M ohm. Consult factory for other values Maximum Operating Voltage 350 VAC, 500 VDC through glass, 1000 VAC, 1500 VDC through substrate Overload Five times rated power, as long as the one second average dissipation does not exceed the wattage rat- ing. ∆R: ±2%, 2000 hours Derating 100% @ 25°C to 0% @ 180°C ambient. Ohmite’s original Power Chip resistors feature our thick film on alumina substrate technology. These planar packages yield space saving, 10W/in2 power densities that require over 50% less board space than other radial packages. Convection cooling is maximized by the planar package configuration which dissipates heat well above board level. Ohmite’s power chip resistors have a 125% higher operating temperature range than competitive prod- uct of similar design. High temperature solder and in-process plating keep terminations secure under self-heating effects by preventing re-flow from full power operation. Flexible packaging schemes make these resistors ideal for power supplies, audio amplifiers, video fly- back, and other power control applications. Fe A T ure S • High-Temp Terminal Construction • Wide Resistance Range • Low Inductance (50nH-100nH) • High Power Density • Easy to install. PC-mountable ch A r A c T eri ST ic S S erie S SP eci F ic AT i ONS Series Wattage TA205 5.0 TA305 5.0 TA605 5.0 TA805 5.0 Series Wattage TA207 7.5 TA307 7.5 Series Wattage TA310 10.0 TA810 10.0 Series Wattage TA025 25.0 TA050 50.0 TA100 100.0 |
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