
Monthly Linear Power Supply DC DC
PSU-PEAC/Monthly_Linear_Power_Supply_DC-DC
A 30V / 5A Linear DC to DC converter with full Voltage and Current Regulation. MJ4502 PNP output.

The MJ4502 is a bipolar made by SPTECH in a TO-3 package with 4 pins. 1 PNP 100 1mA 200W 2MHz 30A 4V 800mV 90V PNP Standalone TO-3 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_PNP_1B_2E_3C_4C, from PCBKit's generic symbols) and its footprint (EasyEDA_Cloud:TO-3_L39.4-W26.7-P10.92-BL, from EasyEDA), ready for a KiCad board. 25 are in stock at JLCPCB (part C2907950). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |
| 4 | C | Passive |

PSU-PEAC/Monthly_Linear_Power_Supply_DC-DC
A 30V / 5A Linear DC to DC converter with full Voltage and Current Regulation. MJ4502 PNP output.
<iframe src="https://pcbkit.io/embed/parts/sptech/MJ4502" title="MJ4502 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/sptech/MJ4502.jpg" alt="MJ4502" width="1200" height="900">[](https://pcbkit.io/parts/sptech/MJ4502)Yes. The symbol is Pinmap_Generic:Q_PNP_1B_2E_3C_4C and the footprint EasyEDA_Cloud:TO-3_L39.4-W26.7-P10.92-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
TO-3, with 4 pins. Its footprint is drawn on this page.
SPTECH publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2907950, with 25 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the 2N5686 by SPTECH, the 2N4399 by SPTECH, the 2N5684 by SPTECH and the 2SC3058 by SPTECH. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.