TA Series Power Chip Thick Film on Alumina Substrate 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 450 ppm/C Temperature Coefficient 1 ohm: 1 to 100: 100 ppm/C 101 and up: 50 ppm/C Tolerance 1%, 5% and 10% Power Rating Based on 25C 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, not to exceed power rating Overload Five times rated power, as long as the one second average dissipation does not exceed the wattage rating. R: 2%, 2000 hours Test Condition Test MILR83401 Specification Life (Rated 40C, rated power, 90 Power) min ON 30 min OFF, 1000 hrs. R ( 1.0% + 0.05) Life 60C, 90 - 95% RH, (Moisture rated power, 90 min Load) ON 30 min OFF, 1000 hrs. R ( 1.0% + 0.05) Temperature Room temp > -55C Cycling 30 min > RT 10 min 120C 30 min > RT10 min 5 cycles R ( 0.25% + 0.05) Flammability UL94V-O rated (not recognized) Soldering 350C Solderpot, 3 Heat secs. Insulation DC 100V, 1 min Resistance R ( 0.25% + 0.05) Over 1000M ohm Derating 100% @ 25C to 0% @ 180C ambient. Equivalent Parallel Capacitance 1.0pf (100 MHz) Withstanding Voltage 5000V thru back side Operating Temperature Range -55C to +180C Overload Current 20 x rated current up to 8 ms (R 0.5%) 102 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com (continued) rev 6/18-1 TA Series Power Chip Thick Film on Alumina Substrate DIMENSIONS (.020 in. / .508mm) Series L PA 3, 5, 7.5 & 10 watt 0.045" +.002/-.004 (0.040" thru-hole) H typical PC board 0.07"/1.78mm 0.17"/4.32mm P 0.10"/2.54mm 0.02" x 0.015" Pins PW 10, 25, 50 & 100 watt L+0.08"/2mm max. L 0.040" / 1.02 mm 0.150" / 3.8 mm min. 0.300" / 7.62 mm 0.020" / 0.51 mm typ. 0.070" / 1.78 mm P 0.040" / 1.02 mm typ. 0.200" / 5.08 mm Length L Height H 0.50 / 12.70 0.60 / 15.24 TA303PA 3.0 0.300 / 7.62 0.50 / 12.70 0.60 / 15.24 TA205PA 5.0 0.200 / 5.08 0.50 / 12.70 1.00 / 25.40 TA305PA 5.0 0.300 / 7.62 0.50 / 12.70 1.00 / 25.40 TA605PA 5.0 0.600 / 15.24 1.00 / 25.40 0.50 / 12.70 TA805PA 5.0 0.800 / 20.32 1.00 / 25.40 0.50 / 12.70 TA207PA 7.5 0.200 / 5.08 0.75 / 19.05 1.00 / 25.40 TA307PA 7.5 0.300 / 7.62 0.75 / 19.05 1.00 / 25.40 TA810PA 10.0 0.800 / 20.32 1.00 / 25.40 1.00 / 25.40 TA810PW* 10.0 0.800 / 20.32 1.085 / 27.56 1.00 / 25.40 0.240" / 6.10 mm H P 3.0 0.200 / 5.08 TA310PA 10.0 0.300 / 7.62 1.00 / 25.40 1.00 / 25.40 TA310PW* 10.0 0.300 / 7.62 1.085 / 27.56 1.00 / 25.40 PY mount 0.150" / 3.8 mm min. Wattage TA203PA 0.855" / 21.72 mm TA025PA 25.0 TA025PY* 25.0 1.90 / 48.3 1.90 / 48.3 2.220 / 56.39 1.170 / 29.70 2.220 / 56.39 1.170 / 29.70 TA050PA 50.0 TA050PY* 50.0 1.90 / 48.3 1.90 / 48.3 2.220 / 56.39 2.270 / 57.60 2.220 / 56.39 2.270 / 57.60 TA100PA 100.0 4.10 / 104.1 4.420 / 112.27 2.270 / 57.60 TA100PY* 100.0 4.10 / 104.1 4.420 / 112.27 2.270 / 57.60 *10-100 watts available in PW,PA, and PY packages. 0.195" / 4.95 mm 0.075" / 1.91 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 () R250 = 0.25 10R0 = 10.0 2K00 = 2,000 45K0 = 45,000 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com 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 75,000.00 100,000 150,000 200,000 103 ---2K50J ---3K00J ---4K00J ---4K70J ---5K00J ---5K10J ---7K50J ---10K0J ---15K0J ---18K0J ---20K0J ---30K0J ---39K0J ---50K0J ---75K0J ---100KJ ---150KJ ---200KJ TA100PW TA050PW TA025PW TA810PW TA310PA TA207PA TA205PA TA305PA TA303PA = Most popular standard values, = Stock values Part No. Prefix Suffix TA203PA ---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 TA303PA TA305PA TA203PA 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 Ohmic value Part Number Part No. Prefix Suffix Ohmic value Standard part numbers for TA series