Passives

Surface-Mount Power Metal Strip Resistor from Vishay

27th June 2008
ES Admin
0
Vishay has announced a high-precision Bulk Metal surface-mount Power Metal Strip resistor that features an improved load-life stability of ±0.05% at +70°C for 2000 hours at rated power, an absolute TCR of ±15PPM/°C from -55°C to +125°C, +25°C Ref., and a tolerance of ±0.1%.
Typical current sensing resistors offer a load-life stability of ≥0.5% through a 1000-hour workload. The improved resistance stability of the CSM2512S makes it ideal for tightened-stability voltage division and precision current sensing applications in switching linear power supplies, power amplifiers, measurement instrumentation, bridge networks, and medical and test equipment. In addition, the CSM2512S complies with EEE-INST-002 (MIL-PRF 55342 and MIL-PRF 49465) for military and space applications.

The CSM2512S's all-welded construction is composed of a Bulk Metal® resistive element with plated copper terminations. The resistor element is designed to uniformly dissipate power in order to minimize hot spots, and is compatible with the lead material, resulting in a low thermal EMF of 3μV/°C.

The CSM2512S provides a 1-W power rating and maximum current up to 18A in a four-terminal Kelvin configuration for increased accuracy. Any value at any tolerance is available within the resistance range of 10mΩ to 100mΩ at no additional cost.

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