Japanese connector manufacturer Hirose Electric has unveiled its TB4 series of two-piece FPC/FFC-to-board connectors, aimed at meeting the demanding requirements of next-generation automotive applications.
The TB4 series is engineered to withstand operating temperatures of up to 125°C, allowing it to be positioned close to engine compartments and other high-heat zones. The connectors are USCAR-2 compliant, meeting stringent automotive reliability standards.
Hirose said the TB4’s design improves assembly efficiency by allowing the flexible printed circuit (FPC) or flexible flat cable (FFC) to be inserted directly into the plug housing and locked with a retainer. The retainer provides additional mechanical stability and terminal assurance while simplifying installation and reducing component complexity.
By eliminating traditional terminals, the TB4 series achieves notable weight and space savings, while maintaining connection integrity. With a 1.0 mm pitch and a low mated height of just 4.5 mm, the connector is suited for compact automotive and industrial designs where space efficiency is critical.
A guide key mechanism ensures accurate alignment during mating, reducing the risk of damage from incorrect insertion. Safety has also been prioritised: the receptacle includes a finger protection feature to prevent accidental contact with live components, while the plug’s protective guide structure minimises the risk of electric shock and further improves reliability.
Potential applications include battery management systems, ADAS-ECUs, combination lamps, construction machinery batteries, storage battery modules, industrial robots, and other power systems.
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