Vishay Power Metal Strip ® Resistor New Features for Increased Measurement Accuracy and Reduced TCR

source: Vishay news

Vishay Intertechnology announces a new surface-mount Power Metal Strip current sense resistor in
the compact 1206 case size that combines an extended power rating to 0.5 W with a Kelvin 4-
terminal connection that reduces TCR and enables tight tolerances down to 0.1 % for increased
measurement accuracy. To minimize excess power dissipation, the Vishay Dale WSK1206…18 High
Power offers low resistance values down to 0.01 Ω.

• Offers twice the power of standard resistors in the 1206 footprint
• Saves board space and reduces costs by allowing designers to utilize fewer and smaller components
• Reduces system errors while eliminating the need for system calibration during manufacturing or
  in the field
• Further reduces costs and improves end product performance
• Advanced construction incorporates a solid metal nickel chrome or manganese-copper resistive element with low TCR (< 20 ppm/°C)
• Proprietary processing technique produces extremely low resistance values

Product Benefits:
Compact 1206 case size
High 0.5 W power rating
Kelvin 4-terminal connection
TCR down to 35 ppm
Tight tolerances down to 0.1 %
Low resistance values down to 0.01Ω
All-welded construction
Low thermal EMF (< 3 μV/°C)
Temperature range from 65 °C to +170 °C
RoHS-compliant, halogen-free, and Vishay Green

Market Applications:
Current sensing, voltage division, and pulse applications
Power management for cell phones
DC/DC converters for servers,
VRMs for laptops, and Li-Ion battery safety and management
Industrial instrumentation
Automotive electronic control such as engine, transmission, anti-lock brakes, audio, and climate controls