Overview: TA Series
Power Chip Resistors Thick Film on Alumina Substrate
® 3, 5, 7.5 & 10 watt
H typical PC board 0.07"/1.78mm P L 0.02" x 0.015" Pins 0.17"/4.32mm 0.10"/2.54mm 25, 50 & 100 watt 0.040" / 1.02 mm L H 0.240" / 6.10 mm 0.300" / 7.62 mm 0.020" / 0.51 mm typ. 0.150" / 3.8 mm ref. P 0.200" / 5.08 mm 0.070" / 1.78 mm 0.040" / 1.02 mm typ. Ohmite’s original Power Chip resistors are designed from 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.
