MJ15004 PNP Power Transistor TO-3 Metal Case
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Prices updated: 14 Oct 2026
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About this product
The MJ15004 is a high-power PNP bipolar transistor in a TO-3 metal case, designed for power amplifier output stages and high-current switching. The metal case is mounted on a heatsink to dissipate heat. It is used in audio power and industrial power-switching designs.
Specifications
- Transistor type
- PNP
- Package
- TO-3 metal case
- Max collector-emitter voltage (Vceo)
- 140 V
- Max collector current (Ic)
- 20 A
- Max power dissipation (Ptot)
- 250 W
Frequently asked questions
Does the MJ15004 need a heatsink?
Yes, for any significant power dissipation. Mount it on a heatsink with thermal compound and an insulating washer if the case must be isolated from the chassis. Its power rating is only achievable with proper heat removal.
Is the MJ15004 a complement to the MJ15003?
Yes. The MJ15003 and MJ15004 are a complementary pair in the same family, with the MJ15003 being NPN and the MJ15004 PNP. Confirm the pairing and pinout in the datasheet before use in a push-pull output stage.
