Overview
The MSD42 is a bipolar made by onsemi in a SC-59 package with 3 pins. -55℃~+150℃ 100nA 150mA 300V 40 500mV NPN SC-59 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1B_2E_3C, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SC-59, from KiCad's library), ready for a KiCad board. 1,000 are in stock at JLCPCB (part C891780).
Symbol
Footprint
Parameters
10- Collector - Emitter Voltage VCEO
- 300V
- Current - Collector Cutoff
- 100nA
- Current - Collector(Ic)
- 150mA
- DC Current Gain
- 40
- Emitter-Base Voltage(Vebo)
- 6V
- Number
- 1 NPN
- Operating Temperature
- -55℃~+150℃
- Pd - Power Dissipation
- 450mW
- Vce Saturation(VCE(sat))
- 500mV
- type
- NPN
Order codes
1- MSD42T1GLCSC C891780
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |
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<iframe src="https://pcbkit.io/embed/parts/onsemi/MSD42" title="MSD42 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/MSD42.jpg" alt="MSD42" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/MSD42)Questions
Is there a KiCad symbol and footprint for the MSD42?
Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2E_3C and the footprint Package_TO_SOT_SMD:SC-59, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MSD42?
SC-59, with 3 pins. Its footprint is drawn on this page.
Where is the MSD42 datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the MSD42?
JLCPCB lists it as part C891780, with 1,000 in stock; the sellers' links on this page open their listings.
What can replace the MSD42?
Parts like it in the library: the 2SC3837KT146N by ROHM Semiconductor and the 2SC3124(HF) by Toshiba. Check their datasheets: a part that fits the footprint may still differ in its ratings.
