Compact and cost-efficient alternative for clip-bonded packaging to bipolar junction transistors

Nexperia has expanded its bipolar junction transistor (BJTs) portfolio by introducing 12 new MJD-style BJTs in clip-bonded FlatPower (CFP15B) packaging. This latest offering, released as MJPE-series, meets the ongoing industry demand for more power-efficient and cost-effective designs in industrial and automotive applications. Compared to conventional DPAK-packaged MJD transistors, MJPE-parts in CFP15B deliver notable board space savings and cost advantages without compromising performance.

The new portfolio includes six automotive-qualified (e.g., MJPE31C-Q) and six industrial-grade types (e.g. MJPE44H11), with VCEO ratings of 50V, 80V, and 100V, and collector currents (IC) of 2A, 3A, and 8A. NPN and PNP variants are available. These BJTs complement the company's extensive CFP portfolio, which already incorporates a wide range of Schottky and recovery rectifier power diodes—another step toward standardising footprints across multiple product categories, streamlining PCB design and simplifying supply chains.

Used in diverse applications such as power supplies for BMS, onboard chargers in EVs, and backlighting for video displays, the BJTs maintain equivalent thermal performance (up to 175C operation for automotive applications) while offering a 53% smaller soldering footprint. Additionally, the clip technology of the CFP15B package provides excellent mechanical robustness while enhancing the electrical and thermal performance of these devices.

"As the industry transitions to multilayer PCBs, a trend driven by the increasing popularity of high-performance microcontrollers, packaging has become a crucial part of the thermal system," according to Frank Matschullat, product group manager of Power Bipolar Discretes at Nexperia. "Modern CFP packaging technology, designed for multilayer PCBs, offers equal electrical performance in a considerably smaller footprint, helping to reduce part and overall system costs. Nexperia has substantially expanded its capacity to meet the increasing demand for CFP-packaged products that are essential for future-proofing automotive and industrial applications, including the MJPE series of BJTs."