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 fly-back, and other power control applications. Power Chip(R) Thick Film on Alumina Substrate 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 0.300" / 7.62 mm 0.020" / 0.51 mm typ. 0.070" / 1.78 mm P 0.150" / 3.8 mm ref. 0.200" / 5.08 mm 0.040" / 1.02 mm typ. F e at u r e s Solder-coated phosphor bronze 0.050" / 1.27 mm dia. finished pins * High-Temp Terminal Construction * Wide Resistance Range * Low Inductance (50nH-100nH) * High Power Density * Easy to install. PC-mountable Dimensions (.020 in. / .508mm) Length L Height H Series Wattage P TA203 TA303 TA205 TA305 TA605 TA805 TA207 TA307 TA310 TA810 TA025 TA050 TA100 3.0 3.0 5.0 5.0 5.0 5.0 7.5 7.5 10.0 10.0 25.0 50.0 100.0 0.200 / 5.08 0.300 / 7.62 0.200 / 5.08 0.300 / 7.62 0.600 / 15.24 0.800 / 20.32 0.200 / 5.08 0.300 / 7.62 0.300 / 7.62 0.800 / 20.32 1.90 / 48.3 1.90 / 48.3 4.10 / 104.1 0.50 / 12.70 0.50 / 12.70 0.50 / 12.70 0.50 / 12.70 1.00 / 25.40 1.00 / 25.40 0.75 / 19.05 0.75 / 19.05 1.00 / 25.40 1.00 / 25.40 2.220 / 56.39 2.220 / 56.39 4.420 / 112.27 0.60 / 15.24 0.60 / 15.24 1.00 / 25.40 1.00 / 25.40 0.50 / 12.70 0.50 / 12.70 1.00 / 25.40 1.00 / 25.40 1.00 / 25.40 1.00 / 25.40 1.170 / 29.70 2.270 / 57.60 2.270 / 57.60 S p e c i f i cat i ons Material 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 100 100 ppm/C 101 and up 50 ppm/C Electrical 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 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% @ 25C to 0% @ 180C ambient. ORDERIN G INFORMATION Pin spacing (on 3-10W models only) 2 = .2" 3 = .3" 8 = .8" Tolerance K = 10% J = 5% F = 1% RoHS compliant TA305PA4K50JE Series Resistance Value () Power Rating: Package: PA = pin terminals, R250 = 0.25 03 = 3 W std. for 3-10 W 10R0 = 10.0 05 = 5 PW = wraparound, 2K00 = 2,000 07 = 7.5 std. for 10-100 W 45K0 = 45,000 10 = 10 025 = 25 050 = 50 Check product availability at 100 = 100 www.ohmite.com = Most popular standard values, = Stock values, = 54 Ohmite Mfg. Co. 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 ---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 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 S ta n d a r d pa rt n u m b e r s f o r ta s e r i e s Non-standard values subject to minimum handling charge per item 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com