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This specialized design benefits from improved heat transfer from the element to the terminal and is optimized for power management, actuator drive, and heating applications. By limiting the temperature rise in the component hotspot, such high power density components reduce PCB space requirements and improve reliability.
Our best power density to date is provided by TT’s HPDC series’ wide-area solder terminations on aluminum nitride. By limiting the component hotspot temperatures, this solution allows our customers to reduce the size of their power conversion designs while improving assembly reliability.
The Global High power density chip resistor market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The introduction of TT Electronics’ HPDC series high power density chip resistors was announced. The improved heat transfer from the element to the terminal makes this specialized design ideal for power management, actuator drive, and heating applications.
By limiting the temperature rise in the component hotspot, the adoption of such high power density components reduces PCB space requirements and improves reliability.
The aluminum nitride (AlN) ceramic substrate used in TT’s new HPDC series chip resistors has nearly six times the thermal conductivity of alumina, the traditional substrate material for chip resistors.
Large area terminations are another feature of HPDC chip resistors for better thermal contact with a PCB. In turn, this effectively conducts heat away from the resistor element, lowering temperature rise.
With values of 2.4W in 1206 and 3.5W in 2512 footprints, HPDC resistors can now provide a high power density solution. HPDC is perfect for active capacitor bleed circuits because it improves short-term overload performance at 4.7W in 1206 and 7.7W in 2512 for five seconds.
The maximum element temperature of 155°C and the maximum termination temperature of 110°C are the only temperature limits on the power that can be applied when using these high-power resistors in temperature-controlled heating applications.
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