1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com rev 4528 high power th ick 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 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 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% @ 25c to 0% @ 180c ambient. ohmites original power chip resistors feature our thick film on alumina substrate technology. these planar packages yield space saving, 10w/in 2 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. ohmites 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 atures ? high-temp terminal construction ? wide resistance range ? low inductance (50nh-100nh) ? high power density ? easy to install. pc-mountable characteristics serie s specific ations 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
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com rev 4528 high power th ick film alumina 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 1.90 / 48.3 2.220 / 56.39 1.170 / 29.70 ta050 50.0 1.90 / 48.3 2.220 / 56.39 2.270 / 57.60 ta100 100.0 4.10 / 104.1 4.420 / 112.27 2.270 / 57.60 *pw version of 310 and 810 are l=1.085"/27.56mm power rating: 03 = 3 w 05 = 5 07 = 7.5 10 = 10 025 = 25 050 = 50 100 = 100 ta 3 05p a4k50j e series to lerance k = 10% j = 5% f = 1% package: pa = pin terminals, std. for 3-10 w pw = wraparound, std. for 10-100 w py = high-stability wraparound resistance v alue (? ) r250 = 0.25 10 r0 = 10.0 2k 00 = 2,000 45k0 = 45,000 pin spacing (on 3-10w models only) 2 = .2" 3 = .3" 8 = .8" rohs compliant h 0.020" / 0.51 mm typ . p l 0.150" / 3.8 mm ref . 0.200" / 5.08 mm 0.050" / 1.27 mm dia. finished pins 0.070" / 1.78 mm 0.040" / 1.02 mm 0.240" / 6.10 mm 0.300" / 7.62 mm 0.195" / 4.95 mm 0.855" / 21.72 mm 0.200" / 5.08 mm 0.040" / 1.02 mm typ. 3, 5, 7.5 & 10 watt 10, 25, 50 & 100 watt pw mount py mount p l 0.07"/1.78m m h 0.17"/4.32m m 0. 10"/2.54m m 0.02" x 0.015" pins typical pc board standard part numbers for ta series ?? power chip ? thick film on alumina substrate on nfo aton tapa ohmic value tapa tapa tapa part number tapa tapa tapw tapw tapw n part no. prefi ohmic value tapa tapa tapa part number tapa tapa tapw tapw tapw n part no. prefi ohmic value tapa tapa tapa part number tapa tapa tapw tapw tapw n part no. prefi
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