Thick Film Alumina TA Series 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 product 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 flyback, and other power control applications. F e at u r e s • High-Temp Terminal Construction • Wide Resistance Range • Low Inductance (50nH-100nH) • High Power Density • Easy to install. PC-mountable S ERIE S S P ECI F IC A T I O N S Series TA203 TA303 Wattage 3.0 3.0 Series TA205 TA305 TA605 TA805 Wattage 5.0 5.0 5.0 5.0 Series TA207 TA307 Wattage 7.5 7.5 Series TA310 TA810 Wattage 10.0 10.0 Series TA025 TA050 TA100 Wattage 25.0 50.0 100.0 c h a r a c t e r i st i c s Substrate Alumina Resistor Thick Film Coating Glass Terminals Solder Plated Phosphor Bronze Thermal Conductivity 20 Watts/Meter/°C 450 ppm/°C Temperature Coefficient 1 ohm: 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 rating. ∆R: ±2%, 2000 hours Derating 100% @ 25°C to 0% @ 180°C ambient. REV 4528 High power Power Chip® Thick Film on Alumina Substrate 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] Thick Film Alumina Power Chip® Thick Film on Alumina Substrate DIMENSIONS (±.020 in. / ±.508mm) 3, 5, 7.5 & 10 watt H typical PC board 0.17"/4.32mm 0.07"/1.78mm P L 0.10"/2.54mm 0.02" x 0.015" Pins 10, 25, 50 & 100 watt 0.040" / 1.02 mm L 0.240" / 6.10 mm H PY mount PW mount 0.200" / 5.08 mm 0.300" / 7.62 mm 0.020" / 0.51 mm typ. 0.070" / 1.78 mm P 0.150" / 3.8 mm ref. 0.040" / 1.02 mm typ. Series Wattage P Length L Height H TA203 3.0 0.200 / 5.08 0.50 / 12.70 0.60 / 15.24 TA303 3.0 0.300 / 7.62 0.50 / 12.70 0.60 / 15.24 TA205 5.0 0.200 / 5.08 0.50 / 12.70 1.00 / 25.40 TA305 5.0 0.300 / 7.62 0.50 / 12.70 1.00 / 25.40 TA605 5.0 0.600 / 15.24 1.00 / 25.40 0.50 / 12.70 TA805 5.0 0.800 / 20.32 1.00 / 25.40 0.50 / 12.70 TA207 7.5 0.200 / 5.08 0.75 / 19.05 1.00 / 25.40 TA307 7.5 0.300 / 7.62 0.75 / 19.05 1.00 / 25.40 TA310* 10.0 0.300 / 7.62 1.00 / 25.40 1.00 / 25.40 TA810* 10.0 0.800 / 20.32 1.00 / 25.40 1.00 / 25.40 TA025 25.0 TA050 50.0 TA100 100.0 1.90 / 48.3 2.220 / 56.39 1.170 / 29.70 1.90 / 48.3 2.220 / 56.39 2.270 / 57.60 4.10 / 104.1 4.420 / 112.27 2.270 / 57.60 *PW version of 310 and 810 are L=1.085"/27.56mm 0.855" / 21.72 mm 0.195" / 4.95 mm 0.200" / 5.08 mm 0.050" / 1.27 mm dia. finished pins O R D ERI N G I N F O R M A T I O N Pin spacing (on 3-10W models only) 2 = .2" 3 = .3" 8 = .8" Tolerance K = 10% J = 5% F = 1% RoHS compliant TA305PA4K50JE Series Power Rating: 03 = 3 W 05 = 5 07 = 7.5 10 = 10 025 = 25 050 = 50 100 = 100 Package: PA = pin terminals, std. for 3-10 W PW = wraparound, std. for 10-100 W PY = high-stability wraparound Resistance Value (Ω) R250 = 0.25 10R0 = 10.0 2K00 = 2,000 45K0 = 45,000 Standard part numbers for ta series 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] –––2K50J –––3K00J –––4K00J –––4K70J –––5K00J –––5K10J –––7K50J –––10K0J –––15K0J –––18K0J –––20K0J –––30K0J –––39K0J –––50K0J –––75K0J –––100KJ –––150KJ –––200KJ REV 4528 2,500.00 3,000.00 4,000.00 4,700.00 5,000.00 5,100.00 7,500.00 10,000.00 15,000.00 18,000.00 20,000.00 30,000.00 39,000.00 50,000.00 75,000.00 100,000 150,000 200,000 TA100PW TA050PW TA025PW TA810PW TA310PA TA207PA TA205PA TA305PA TA303PA Part No. Prefix Suffix TA203PA = Most popular standard values, = Stock values Ohmic value –––50R0J –––62R0J –––68R0J –––75R0J –––100RJ –––150RJ –––200RJ –––250RJ –––270RJ –––300RJ –––470RJ –––560 –––620RJ –––680RJ –––1K00J –––1K50J –––1K80J –––2K00J TA100PW 50.00 62.00 68.00 75.00 100.00 150.00 200.00 250.00 270.00 300.00 470.00 500.00 620.00 680.00 1,000.00 1,500.00 1,800.00 2,000.00 TA050PW TA025PW Ohmic value TA810PW TA100PW TA310PA TA050PW TA207PA TA025PW TA205PA TA810PW TA305PA TA310PA TA303PA TA207PA TA203PA TA205PA TA305PA TA303PA Part Number –––R250J –––1R00J –––1R50J –––2R00J –––4R70J –––5R00J –––5R10J –––7R50J –––8R20J –––10ROJ –––11R0J –––12R0J –––15R0J –––20R0J –––24R0J –––27R0J –––33R0J –––47R0J Part Number Part No. Prefix Suffix 0.25 1.00 1.50 2.00 4.70 5.00 5.10 7.50 8.20 10.00 11.00 12.00 15.00 20.00 24.00 27.00 33.00 47.00 Part No. Prefix Suffix TA203PA Part Number Ohmic value High power TA Series