Overview
The MJD31 is a bipolar made by onsemi in a TO-252(DPAK) package with 3 pins. -65℃~+150℃ 1 NPN 1.2V 15W 25 3A 3MHz 40V 50uA 5V NPN TO-252(DPAK) Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1B_2C_3E, from PCBKit's generic symbols) and its footprint (EasyEDA_Cloud:TO-252-3_L6.5-W5.8-P4.58-BL, from EasyEDA), ready for a KiCad board. 12,574 are in stock at JLCPCB (part C184041).
Symbol
Footprint
Parameters
12- Collector - Emitter Voltage VCEO
- 40V
- Configuration
- Standalone
- Current - Collector Cutoff
- 50uA
- Current - Collector(Ic)
- 3A
- DC Current Gain
- 25
- Emitter-Base Voltage(Vebo)
- 5V
- Number
- 1 NPN
- Operating Temperature
- -65℃~+150℃
- Pd - Power Dissipation
- 15W
- Transition frequency(fT)
- 3MHz
- Vce Saturation(VCE(sat))
- 1.2V
- type
- NPN
Order codes
1- MJD31T4GLCSC C184041
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | C | Passive |
| 3 | E | Passive |
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<iframe src="https://pcbkit.io/embed/parts/onsemi/MJD31" title="MJD31 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/MJD31.jpg" alt="MJD31" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/MJD31)Questions
Is there a KiCad symbol and footprint for the MJD31?
Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2C_3E and the footprint EasyEDA_Cloud:TO-252-3_L6.5-W5.8-P4.58-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MJD31?
TO-252(DPAK), with 3 pins. Its footprint is drawn on this page.
Where is the MJD31 datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the MJD31?
JLCPCB lists it as part C184041, with 12,574 in stock; the sellers' links on this page open their listings.
What can replace the MJD31?
Parts like it in the library: the MJD3055T4G by onsemi and the MJE13003L-D-TN3-R by UTC. Check their datasheets: a part that fits the footprint may still differ in its ratings.
