MJD148-QJ

Single Bipolar Transistors Overview

The MJD148-Q is an NPN high power bipolar transistor designed for surface-mount applications in a DPAK (SOT428C) plastic package. It supports a collector-emitter voltage of 45 V and a continuous collector current of 4 A, with a peak pulse current capability of 7 A. The device features a low collector-emitter saturation voltage and fast switching speeds, ensuring high energy efficiency through reduced heat generation. Qualified to the AEC-Q101 standard, it operates within a junction temperature range up to 150 °C and an ambient temperature range from -55 °C to 150 °C.

Single Bipolar Transistors Feature Summary

• AEC-Q101 qualified for automotive reliability
• High thermal power dissipation capability
• Low collector-emitter saturation voltage
• Fast switching speeds

Single Bipolar Transistors Applications

• Power management
• Load switch
• Linear mode voltage regulator
• Constant current drive backlighting application
• Motor drive

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and marking codes. Confirm that the component meets the required AEC-Q101 qualification standards for your intended automotive or industrial environment. Ensure design parameters remain within the absolute maximum ratings defined in the datasheet to prevent permanent damage.

Single Bipolar Transistors Selection Notes

Select this component when a robust NPN transistor with high current handling and automotive-grade reliability is required. The DPAK package offers a balance between power dissipation and PCB space efficiency. Consider the thermal resistance characteristics and derating curves when designing for high ambient temperatures or continuous load conditions.

Single Bipolar Transistors Part Context

This part belongs to Nexperia's portfolio of high-power discrete semiconductors. It is electrically similar to the popular MJD148 series but includes specific automotive qualification. The device is housed in a single-ended surface-mounted plastic package with a mounting base connected to the collector for efficient heat transfer.

Single Bipolar Transistors Replacement Considerations

The datasheet notes electrical similarity to the MJD148 series. Verify pinout compatibility and thermal performance before substituting other NPN transistors in existing designs.

Single Bipolar Transistors FAQ

What is the maximum peak collector current?

The maximum peak collector current is 7 A for a single pulse with a duration of 1 ms or less.

How is the mounting base connected?

The mounting base (mb) is electrically connected to the collector terminal.

What is the marking code for this device?

The marking code for the MJD148-Q is 'MJD148A'.