onsemi NJVMJD2955T4G

Overview

NJVMJD2955T4G from onsemi is a PNP silicon power transistor in DPAK (TO-252) package, rated for 60 V_CEO, 10 A_C, and 20 W at T_C = 25 °C, designed for low-speed switching and linear amplifier applications in automotive-grade power supplies and motor control circuits.

For engineers reviewing the NJVMJD2955T4G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q101 qualification, 6.25 °C/W junction-to-case thermal resistance, guaranteed h_FE ≥ 20 at I_C = 4 A, and Pb-free DPAK surface-mount compatibility with standard reflow profiles.

Technical Context

This device operates as a complementary PNP counterpart to the NPN MJD3055, sharing identical DPAK-3 mechanical outline (Case 369C), thermal performance, and safe operating area curves. Its design targets robustness in thermally constrained PCB layouts where junction temperature must remain ≤150 °C under pulsed or DC loads.

The NJVMJD2955T4G delivers verified V_CE(sat) ≤ 1.1 V at I_C = 4 A / I_B = 0.4 A and f_T ≥ 2 MHz, enabling stable operation in Class-A/B audio stages and relay drivers where gain-bandwidth trade-offs impact distortion and turn-off speed.

Key Specifications

Pinout & Package

DPAK-3 (Case 369C) surface-mount package: 6.10 mm × 6.54 mm × 2.28 mm body with exposed drain pad (pin 2 & 4) for thermal conduction and mechanical anchoring.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP power transistor applications.

Compared with MJD2955T4G and BD249C, the NJVMJD2955T4G uniquely combines AEC-Q101 compliance, DPAK thermal efficiency, and 60 V blocking capability-making it the only option qualified for new automotive designs requiring PPAP and high-reliability surface-mount assembly.

Availability

NJVMJD2955T4G is available at Aetrix Electronics and suitable for automotive power regulation, industrial relay driving, and DC motor control applications requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for NJVMJD2955T4G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, and consumer markets.

The NJVMJD2955T4G belongs to onsemi's complementary power transistor family designed specifically for rugged, high-current linear and switching applications in harsh-environment systems requiring AEC-Q101 validation.

FAQ

What is the maximum junction temperature specification for the NJVMJD2955T4G?

The NJVMJD2955T4G has an operating junction temperature range of −55 °C to +150 °C, with thermal derating applied above 25 °C case temperature. Its R_JC of 6.25 °C/W allows precise thermal modeling when mounted to heatsinks or internal PCB copper layers, ensuring reliable operation within this full range under validated test conditions.

Is the NJVMJD2955T4G pin-compatible with the MJD2955T4G?

Yes-the NJVMJD2955T4G shares identical DPAK-3 pinout (pin 1: Base, pins 2 & 4: Collector, pin 3: Emitter), mechanical dimensions, and electrical specifications with the MJD2955T4G. The only functional difference is the NJV prefix denoting AEC-Q101 qualification, unique site controls, and PPAP capability-not physical or electrical incompatibility.

Does the NJVMJD2955T4G require a heatsink in typical 4 A switching applications?

In a typical 4 A, 12 V switching application with 50% duty cycle, the NJVMJD2955T4G dissipates ~2.2 W average power. With R_JA = 71.4 °C/W (minimum pad size), junction rise would be ~157 °C-exceeding 150 °C. Therefore, a heatsink or ≥ 2 in² internal copper pour is required to maintain safe operation, leveraging its 6.25 °C/W R_JC for effective thermal transfer.

What does the "NJV" prefix signify on the NJVMJD2955T4G?

The "NJV" prefix on the NJVMJD2955T4G indicates automotive-specific manufacturing controls, including dedicated wafer fabrication and assembly sites, enhanced process monitoring, and full AEC-Q101 qualification. It also confirms PPAP capability-enabling documentation for Tier 1 automotive suppliers-and distinguishes it from commercial-grade MJD2955 variants.

Can the NJVMJD2955T4G be used in linear amplifier configurations?

Yes-the NJVMJD2955T4G is explicitly designed for general-purpose amplifier applications per its datasheet. With h_FE ≥ 20 at I_C = 4 A and f_T ≥ 2 MHz, it supports stable Class-A/B audio output stages and precision linear regulators where gain linearity and thermal stability are critical, provided proper biasing and heatsinking are implemented.