Friday, March 1, 2024

Enhanced Thermal Management With New TMJ Series Surface Mount Thermal Jumper Chips

By Akanksha Sondhi Gaur

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Discover how this innovative electrically isolated jumper, featuring outstanding thermal conductivity, low capacitance, and high insulation resistance, leverages an aluminium nitride substrate to ensure exceptional heat dissipation and component isolation.

In a world where today’s power supplies, amplifiers, and servers are pushing the boundaries of performance, concerns over thermal management have risen. The heightened performance levels can significantly increase temperature, potentially surpassing the recommended operating limits for specific components.

Enter Stackpole’s TMJ series – an innovative solution to these thermal challenges. The TMJ series offers an electrically isolated jumper that excels in thermal conductivity and maintains low capacitance and high insulation resistance between its terminals. This unique component leverages an aluminium nitride substrate to deliver exceptional thermal conductance, reaching up to 216 mW / deg C, all while ensuring isolation for components that cannot be electrically grounded. The features include:

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  • Chip size from 0603 to 2512 
  • Operating Temperature Range (°C)-55ºC to +155°C
  • Storage Temperature Range (°C) -55ºC to +155°C
  • RoHS compliant 
  • REACH compliant 

The substrate material, aluminium nitride (AIN), boasts an impressive thermal conductivity of 170 W/mK. This attribute enables efficient heat dissipation and contributes to its low capacitance, ensuring minimal electrical interference. Furthermore, the AIN substrate exhibits high insulation resistance between its terminals, promoting reliable performance. Importantly, it adheres to eco-friendly standards by being halogen-free and lead-free, aligning with environmentally conscious practices. Pricing for the series varies depending on the size and tolerance required and falls within the range of $0.35 to $0.90 each when purchased in total package quantities.


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