Managing electrical resistance at the physical connection points is a primary concern for engineers designing high-density automotive platforms.
This article introduces 0.4mm press-fit pins as a critical solution for maintaining efficient signal and power transmission within compact ECU architectures.
What is the typical contact resistance of these advanced pins?
Multi-row board-to-board connectors designed for ECUs, such as the ENNOVI-MB2B, integrate specialized 0.4mm press-fit pins.
These connectors utilize the 0.4mm miniPLXโข Press-Fit technology to achieve highly efficient electrical pathways. The typical contact resistance for these pins generally measures at low levels of less than 1 milliohm (<1 mฮฉ) per contact.
How do 0.4mm pins support dense automotive layouts?
Utilizing 0.4mm pins allows for an ultra-small footprint that conserves valuable real estate on the printed circuit board (PCB). This compact design supports dense pin-counts in a small area, which is essential for modern domain controllers and ECUs.
Despite their small size, these connectors deliver the concentrated power density and high-speed signaling required for next-generation vehicle architectures.
What level of adaptability do these solderless interfaces provide?
Solderless Press-Fit interfaces enable high adaptability, allowing multiple connector units to be physically stacked together. The proprietary modular “snap-in biscuit” design supports various pin and board spacing options, with board stacking heights ranging from 7 to 30mm. This design maintains a high current carrying capacity while providing the high layout flexibility needed for complex multi-board ECU designs.
How do low-resistance pins perform in harsh environments?
These ECU connectors are engineered to maintain their low resistance and electrical integrity under extreme automotive stress. They are tested to withstand high humidity of 80% to 100% RH (8-hour cycling), severe mechanical shocks of 35g for 5 to 10ms across 10 axes, and constant vibrations of 8 hours per axis. The pins are built to operate reliably across extreme working temperatures ranging from -40ยฐC to +150ยฐC.
Get in touch to know more
Achieving contact resistance of less than 1mฮฉ is a critical performance marker for high-density 0.4mm press-fit interconnects in EV electronics.
Contact ENNOVI today to learn more about our 0.4mm miniPLXโข technology and how our multi-row board-to-board connectors can optimize your next ECU design.