onsemi NJVMJD243T4G

Overview

NJVMJD243T4G from onsemi is an NPN silicon power transistor in DPAK-3 package, rated for 100 V_CEO, 4.0 A continuous collector current, and 12.5 W dissipation at T_C = 25 °C, designed for low-voltage, low-power, high-gain audio amplifier stages and switching applications in automotive and industrial systems.

For engineers reviewing the NJVMJD243T4G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q101 qualification, 40 MHz f_T, V_CE(sat) ≤ 0.6 V at 1.0 A, h_FE ≥ 15 (IC = 1.0 A), and Pb-free DPAK-3 thermal performance with R_JC = 10 °C/W.

Technical Context

This NPN bipolar junction transistor operates in linear amplification and saturated switching modes, with a maximum V_CEO of 100 V and V_CB of 100 V, supporting robust operation in low-impedance driver circuits. Its annular construction minimizes leakage, and ESD rating meets HBM Class 3B (≥8 kV).

The device delivers DC current gain from 40 to 180 (IC = 200 mA) and 15 to ? (IC = 1.0 A), with V_BE(on) ≤ 1.5 V and V_BE(sat) ≤ 1.8 V at IC/IB = 10, enabling efficient base drive in Class AB audio output stages and relay drivers.

Key Specifications

Pinout & Package

DPAK-3 (Case 369C), surface-mount plastic package with exposed collector tab for thermal and electrical connection; dimensions 6.10 × 6.54 × 2.28 mm, pitch 2.29 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MJD243T4G, NJVMJD243T4G adds AEC-Q101 qualification and site-specific control for automotive production, while MMBC4401LT1G serves fundamentally different power classes and requires full redesign due to package, voltage, and current limitations.

Availability

NJVMJD243T4G is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, and audio amplifier designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for NJVMJD243T4G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.

The MJD243 family is part of onsemi's complementary power transistor portfolio, engineered for high-reliability, low-voltage audio and switching applications where gain stability, low saturation voltage, and thermal robustness are critical.

FAQ

What is the maximum continuous collector current rating for NJVMJD243T4G?

The NJVMJD243T4G is rated for 4.0 A continuous collector current (I_C) at case temperature T_C = 25 °C. Derating applies above 25 °C at 0.1 W/°C, and safe operating area curves must be observed for pulsed or high-temperature conditions. This rating assumes proper PCB copper area (75 mm², 2 oz.) per onsemi's thermal test condition.

Is NJVMJD243T4G pin-compatible with MJD243T4G?

Yes - NJVMJD243T4G and MJD243T4G share identical DPAK-3 package (Case 369C), pinout (Base–Collector–Emitter–Collector), and all electrical specifications. The sole difference is the NJV prefix, which denotes AEC-Q101 qualification, PPAP capability, and automotive-specific process controls; no PCB layout changes are needed for substitution.

What does the "NJV" prefix signify in NJVMJD243T4G?

The "NJV" prefix in NJVMJD243T4G indicates compliance with AEC-Q101 stress testing, PPAP readiness, and unique site/control change requirements for automotive applications. It reflects dedicated manufacturing traceability, enhanced reliability screening, and documented change control - distinguishing it from standard MJD243T4G for safety-critical or Tier 1 automotive programs.

What is the typical current-gain bandwidth product (f_T) of NJVMJD243T4G?

The NJVMJD243T4G has a minimum current-gain bandwidth product (f_T) of 40 MHz, measured at I_C = 100 mA, V_CE = 10 V, and f_test = 10 MHz. This value supports stable small-signal amplification up to mid-VHF range and ensures adequate phase margin in feedback-based audio and driver circuits.

Can NJVMJD243T4G be used in switching power supplies?

Yes - NJVMJD243T4G is suitable for low-frequency (<500 kHz) switching power supplies such as buck converters and linear regulator pass elements. Its 40 MHz f_T, low V_CE(sat) (≤0.6 V), and 50 pF C_ob support efficient switching, but designers must observe SOA limits, second-breakdown boundaries, and thermal derating per Figure 2 in the datasheet.