Overview
The MMBTA42 is an uncategorised made by SALLTECH in a SOT-23 package with 3 pins.
PCBKit's library has its KiCad symbol (Transistor_BJT:MMBTA42, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3027105).
Symbol
Footprint
Parameters
10- Collector - Emitter Voltage VCEO
- 300V
- Current - Collector Cutoff
- 250nA
- Current - Collector(Ic)
- 300mA
- DC Current Gain
- 100~200
- Emitter-Base Voltage(Vebo)
- 5V
- Number
- 1 NPN
- Pd - Power Dissipation
- 350mW
- Transition frequency(fT)
- 50MHz
- Vce Saturation(VCE(sat))
- 200mV
- type
- NPN
Order codes
1- MMBTA42LCSC C3027105
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |
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Is there a KiCad symbol and footprint for the MMBTA42?
Yes. The symbol is Transistor_BJT:MMBTA42 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MMBTA42?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where can I order the MMBTA42?
JLCPCB lists it as part C3027105, with 0 in stock; the sellers' links on this page open their listings.
What can replace the MMBTA42?
Parts like it in the library: the CMN2922A by Cmos, the SI2318CDS by FUXINSEMI, the MMBT4401 by Galaxy Microelectronics and the MMBT4403 by Galaxy Microelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
