MJ15004G

MJ15004G is a high-power PNP silicon transistor, part of the classic MJ15003/MJ15004 complementary pair used in power audio amplifiers. The “G” suffix usually denotes a RoHS/green variant or a specific package from manufacturers.
Typical ratings (variant dependent): Vceo ~140 V, Ic up to about 8 A, and Ptot ~40–50 W, with maximum junction temperature around 150°C. Commonly offered in metal can styles such as TO-3.
Typical uses: output devices in Class AB audio power amplifiers or other high-voltage, high-current switching applications that require a complementary pair.
Note: exact specs and package for your MJ15004G can vary by vendor, so always consult the specific datasheet for the device you have.

Do you mean electrical/pin-compatible replacements for the MJ15004G power transistor? If so, please specify the required parameters (Vce, Ic, package, gain) or the application (audio output, switching, etc.), and I’ll list direct equivalents and common substitutes.

MJ15004G features:
- PNP silicon power transistor, complementary to MJ15003 (NPN)
- High-voltage, high-current ratings (Vceo ≈ 100–140 V; Ic ≈ 12–16 A)
- TO-3 metal package for excellent heat sinking
- G suffix = lead-free, RoHS-compliant
- Intended for audio power amplifier output stages (Class AB) with wide safe operating area
- Rugged, reliable device suitable for push-pull complementary pairs
- Commonly used in high-power audio and other high-current applications

The MJ15004G is a 3‑lead NPN power transistor. Its pins are: Base (control), Collector (power input — usually tied to the metal case/heatsink), and Emitter (output/reference). Function: high‑voltage, high‑current switching/amplification in power supplies and audio/amplifier circuits. Pin order can vary by package (e.g., TO‑3P/TO‑247: pin 1 = Base, pin 2 = Collector, pin 3 = Emitter), so confirm the exact package datasheet for pin‑out and mounting details.

Manufacturer: onsemi (ON Semiconductor).
What kind of company: onsemi is a global semiconductor manufacturer (an integrated device manufacturer) that designs and produces power transistors, discrete semiconductors, analog and power-management ICs and related components. The MJ15004 series was originally a Motorola product; onsemi now supplies many of those legacy power-transistor parts.

MJ15004G is a high‑power transistor (complementary to MJ15003) used mainly in audio power stages. Common applications include:
- Power amplifier output devices (Class AB hi‑fi and PA systems)
- Power switching/regulation in DC‑DC converters and SMPS
- Linear regulator pass elements for high‑current supplies
- Motor control and servo driver circuits
- General high‑voltage, high‑current switching in power inverters and UPS circuits
Note: typically used as part of a complementary pair in high‑power, classical discrete transistor designs.

The MJ15004G is a high-power NPN transistor supplied in a TO-3P (plastic power) package; the "G" suffix denotes the RoHS/lead‑free (green) version.