onsemi NJVMJD47T4G

Overview

NJVMJD47T4G from onsemi is an NPN silicon power transistor in DPAK (Case 369C) package, rated for 250 V_CEO, 1 A continuous collector current, and 15 W power dissipation at T_C = 25°C. It delivers h_FE = 30–150 at I_C = 0.3 A, V_CE = 10 V, and V_CE(sat) ≤ 1 V at I_C = 1 A, I_B = 0.2 A - designed for line-operated audio output amplifiers and switchmode power supply drivers.

For engineers reviewing the NJVMJD47T4G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q101 qualification, 250 V blocking capability, DPAK thermal performance (R_JC = 8.33°C/W), and compatibility with legacy TIP47-based designs requiring automotive-grade reliability and Pb-free compliance.

Technical Context

This device operates as a high-voltage, medium-power NPN switching transistor with f_T = 10 MHz and typical h_fe = 25 at 1 kHz, enabling stable gain in audio and SMPS driver stages. Its safe operating area (SOA) is defined up to 250 V and 1 A under DC and pulsed conditions, with second-breakdown limits validated per Figure 6 of the datasheet.

The NJVMJD47T4G features electrically similar characteristics to TIP47 but adds AEC-Q101 qualification, PPAP capability, and automotive-specific process controls via the NJV prefix. Its V_BE(on) = 1.5 V max at I_C = 1 A supports predictable base drive design in linear and saturated switching modes.

Key Specifications

Pinout & Package

DPAK-3 (Case 369C) surface-mount package with exposed drain pad (pin 2 and 4 tied to collector), 6.10 × 6.54 × 2.28 mm footprint, UL 94 V-0 compliant epoxy, Pb-free (G suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MJD47T4G and TIP47, the NJVMJD47T4G provides identical switching performance in a surface-mount DPAK package while adding AEC-Q101 qualification, PPAP support, and guaranteed Pb-free compliance - making it the sole option for new automotive designs requiring documented process control and supply chain traceability.

Availability

NJVMJD47T4G is available at Aetrix Electronics and suitable for automotive lighting ballasts, industrial SMPS drivers, line-operated audio amplifiers, and motor control stages requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for NJVMJD47T4G 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, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The NJVMJD47T4G belongs to onsemi's high-voltage NPN power transistor family, engineered for robust switching in line-powered audio, SMPS, and automotive subsystems where reliability, thermal efficiency, and qualification rigor are critical.

FAQ

What is the maximum collector-emitter voltage rating for NJVMJD47T4G?

The NJVMJD47T4G has a maximum collector-emitter sustaining voltage (V_CEO(sus)) of 250 Vdc at I_C = 30 mA and I_B = 0. This rating is verified per the onsemi datasheet and defines the absolute upper limit for DC or repetitive peak voltage applied between collector and emitter before breakdown occurs. Exceeding this value risks permanent device failure.

Is NJVMJD47T4G pin-compatible with MJD47T4G?

Yes, NJVMJD47T4G is pin-compatible with MJD47T4G - both use identical DPAK-3 (Case 369C) packaging with base-collector-emitter-collector pinout (pins 1–4). The only functional difference is the NJV prefix denoting AEC-Q101 qualification and PPAP capability; all electrical, thermal, and mechanical specifications match exactly per the shared datasheet.

Does NJVMJD47T4G require a heatsink in normal operation?

Yes, NJVMJD47T4G requires a heatsink when dissipating more than ~1.5 W continuously at ambient temperatures above 25°C. Its R_JA = 80°C/W (surface-mounted on minimum pad size) means even at 1 W dissipation, junction temperature rises ~80°C above ambient - exceeding safe limits without thermal management. For 15 W operation, a low-R_JC heatsink interface is mandatory.

What does the "NJV" prefix signify in NJVMJD47T4G?

The "NJV" prefix in NJVMJD47T4G indicates automotive-grade manufacturing with unique site and process controls, AEC-Q101 qualification, and PPAP capability. It guarantees compliance with automotive reliability standards, including extended temperature operation (−65°C to +150°C), ESD robustness (HBM Class 3B), and full traceability - distinguishing it from commercial-grade MJD47T4G.

Can NJVMJD47T4G replace TIP47 in existing designs?

NJVMJD47T4G can replace TIP47 in functionally equivalent circuits, but not as a drop-in mechanical replacement: TIP47 uses TO-220 packaging while NJVMJD47T4G uses DPAK-3. Electrical parameters (V_CEO, I_C, h_FE, V_CE(sat)) match closely, but PCB layout must be updated for surface-mount assembly, thermal pad routing, and revised base drive due to DPAK's lower R_JC.