TA203PA4K50KE OHMITE | Alldatasheet

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Technical content

Standard part numberS for ta SerieS

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Part No. Prefix  Suffix TA305PA Ohmic value TA203PA TA303PA TA205PA Part Number TA207PA TA310PA TA025PW TA050PW TA100PW TA810PW Part No. Prefix  Suffix TA305PA Ohmic value TA203PA TA303PA TA205PA Part Number TA207PA TA310PA TA025PW TA050PW TA100PW TA810PW Part No. Prefix  Suffix TA Series Power Chip® Thick Film on Alumina Substrate Dimensions (±.020 in. / ±.508mm) Series Wattage P Length L Height H 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 0.040" / 1.02 mm typ. Solder-coated phosphor bronze 3, 5, 7.5 & 10 watt 10, 25, 50 & 100 watt P L 0.07"/1.78mm H 0.17"/4.32mm 0.10"/2.54mm 0.02" x 0.015" Pins typical PC board Ohmite’s original Power Chip resistors feature our thick film on alumina substrate technol- ogy. These planar packages yield space saving, 10W/in2 power densities that require over 50% less board space than other radial packages. Convection cooling is maxi- mized by the planar package configuration which dissipates heat well above board level. Ohmite’s power chip resis- tors have a 125% higher oper- ating temperature range than competitive product of similar design. High temperature solder and in-process plat- ing 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 ampli- fiers, video fly-back, and other power control applications.

FeATureS

  • High-Temp Terminal Construction
  • Wide Resistance Range
  • Low Inductance (50nH-100nH)
  • High Power Density
  • Easy to install. PC-mountable SPeCiFiCATiONS 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 100Ω 100 ppm/°C 101Ω and up 50 ppm/°C Electrical 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 aver- age dissipation does not exceed the wattage rating. ∆R: ±2%, 2000 hours Derating: Power Rating: 03 = 3 W 05 = 5 07 = 7.5 10 = 10 025 = 25 050 = 50 100 = 100 Series Tolerance K = 10% J = 5% F = 1% Package: PA = pin terminals, std. for 3-10 W PW = wraparound, std. for 25-100 W Resistance Value (Ω) R250 = 0.25 10R0 = 10.0 2K00 = 2,000 45K0 = 45,000 Pin spacing (on 3-10W models only) 2 = .2" 3 = .3" 8 = .8" RoHS compliant  = Most popular standard values,  = Stock values,  = Non-standard values subject to minimum handling charge per item Check product availability at www.ohmite.com