Passives

IRC¹s High Stability Chip Resistor

13th May 2010
ES Admin
0
Providing design engineers with a high power, low resistance device for current sensing applications, TT electronics IRC has developed a highly stable low resistance chip resistor. Designated the LRF3W-MIL Series, the chip resistors utilize high reliability thick film materials and are available with screening to MIL-PRF-55342 or customer drawing. The chip resistor package includes an uninterrupted 2-pad termination on the long sides of the resistor, maximizing thermal transfer and improving reliability.
“The LRF3W-MIL resistors combine high power, excellent stability, and extremely low resistance values in a compact 1225 package,” said Gary Bleasdell, director of TT electronics IRC’s thick film business unit. “This chip resistor is an ideal solution for high current sensing applications in demanding applications such as the military and aerospace arenas.”

Resistance for the LRF3W-MIL Series chip resistors ranges from 0.003‡ to 1.0‡, with a rated power of 3W at 70°C. Absolute TCRs are to ±100ppm/°C, ±250ppm/°C, and ±500ppm/°C, while available absolute tolerances are to ±1%, ±2%, ±5% and ±10%. Operating temperature ranges from -55°C to +150°C.

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