Nexperia Shrinks Designs With BJTs in Compact CFP15 Packages

In high-density electronics, managing power and heat within shrinking board space is no small task. As systems get faster and more complex, engineers must rethink how much space and performance they can afford to dedicate to each discrete component. Traditional packages like DPAK are starting to show their age in designs where every millimeter matters and thermal performance can’t be an afterthought.

Nexperia’s new MJPE series brings 12 MJD-style BJTs into the compact clip-bonded CFP15B package, offering the same electrical and thermal performance as DPAK devices while cutting board space by over 50%. The lineup includes both NPN and PNP variants with VCEO ratings of 50 V, 80 V, and 100 V and collector currents of 2 A, 3 A, and 8 A. With six automotive-qualified parts and six for industrial use, the series targets applications like load switches, motor drives, backlighting, and relay replacement.

Space-saving BJTs in CFP15B packages deliver DPAK-level performance for compact, heat-sensitive automotive and industrial designs. Image used courtesy of Nexperia

The MJPE Series Provides Compact Power

The CFP15B package is a surface-mounted, flat-lead form factor that’s 53% smaller in soldering footprint than DPAK. Beyond its size advantage, the clip-bonded design enables excellent heat dissipation and mechanical strength. Rated for up to 175°C operation, these BJTs are engineered for reliability under sustained power loads in multilayer PCB environments.

Whether for electric vehicle subsystems or industrial motor control, the MJPE series brings packaging efficiency without cutting corners on performance. Since the CFP footprint is already in use across Nexperia’s diode and rectifier families, engineers can simplify their layouts and supply chains using a common package across multiple discrete categories.

MJPE31C-Q Efficiency for Automotive Power Systems

The MJPE31C-Q is a 100 V, 3 A NPN BJT built with automotive environments in mind. It’s qualified to meet AEC-Q101 standards and gives designers a smaller, more efficient alternative to the long-used MJD31 family. Strong thermal dissipation and a low collector-emitter saturation voltage help cut down on heat and power loss, which matters in modern, energy-efficient vehicles.

Compact 100 V BJT ideal for automotive power switching in space-limited systems like BMS and onboard chargers. Image used courtesy of Nexperia

Applications include linear voltage regulators, backlighting circuits, and general-purpose power switching. Its smaller size makes it especially well-suited for space-constrained areas like battery management systems and onboard chargers. The MJPE31C-Q also has a complementary PNP counterpart, the MJPE32C-Q, for balanced circuit designs.

MJPE44H11 High-Current Power in a Smaller Package

On the industrial side, the MJPE44H11 offers an 80 V, 8 A NPN BJT for higher-current applications. It delivers performance on par with the MJD44H series but within the tighter confines of the CFP15B footprint. Its low saturation voltage helps improve overall system efficiency, particularly in designs where continuous high-current flow is the norm.