2 layers36.8 × 20.1 mm
Parallel port headphone dac
roybaer/parallel_port_headphone_dac
This is a reasonably accurate replica of the early 1990s SoundJr device by SiliconSoft.
37 parts4
MMST2222A
Diodes IncorporatedExtended
-55℃~+150℃ 1 NPN 100 10nA 200mW 300MHz 300mV 40V 600mA 6V NPN SOT-323 Bipolar (BJT) ROHS
- Part id
- diodes/MMST2222A
- Category
- Bipolar (BJT)
- Package
- SOT-323
- Pins
- 3
- In stock
- 1,582 at JLCPCB (C151829)
- Used on
- 4 open-source boards
Overview
The MMST2222A is a bipolar made by Diodes Incorporated in a SOT-323 package with 3 pins. -55℃~+150℃ 1 NPN 100 10nA 200mW 300MHz 300mV 40V 600mA 6V NPN SOT-323 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:SOT-323_SC-70, from KiCad's library), ready for a KiCad board. 1,582 are in stock at JLCPCB (part C151829). 4 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |
Open-source boards using it
4- 4 layers54.6 × 54.6 mm
- 2 layers115 × 70.6 mm
- 4 layers64.4 × 54.6 mm
Parts like it
8
SS8050
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 200 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)SS8050W-H
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 200mW 25V 400 500mV 5V NPN SOT-323 Bipolar (BJT) ROHShongjiachengBipolar (BJT)SS8050W
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 120 200mW 25V 500mV 5V NPN SOT-323 Bipolar (BJT) ROHSTWGMCBipolar (BJT)SS8550
SOT-3231 PNP 1.5A 1uA 25V 400 500mV 5V 625mW PNP SOT-23 Bipolar (BJT) ROHSYONGYUTAIBipolar (BJT)MMST5551(RANGE:100-300)
SOT-3231 NPN 100 160V 200mV 200mW 300MHz 50nA 600mA 6V NPN SOT-323 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)SS8050W
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 120 250mW 25V 500mV 5V NPN SOT-323 Bipolar (BJT) ROHSMSKSEMIBipolar (BJT)SS8550W
SOT-323-55℃~+150℃ 1 PNP 1.5A 100MHz 100nA 120 200mW 25V 500mV 5V PNP SOT-323 Bipolar (BJT) ROHSTWGMCBipolar (BJT)SS8050
SOT-3231 NPN 1.5A 1uA 25V 400 500mV 5V 625mW NPN SOT-23 Bipolar (BJT) ROHSYONGYUTAIBipolar (BJT)
Questions
Is there a KiCad symbol and footprint for the MMST2222A?
Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2E_3C and the footprint Package_TO_SOT_SMD:SOT-323_SC-70, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MMST2222A?
SOT-323, with 3 pins. Its footprint is drawn on this page.
Where is the MMST2222A datasheet?
Diodes Incorporated publishes it: the Datasheet link on this page opens it.
Where can I order the MMST2222A?
JLCPCB lists it as part C151829, with 1,582 in stock; the sellers' links on this page open their listings.
What can replace the MMST2222A?
Parts like it in the library: the SS8050 by Jiangsu Changjing Electronics Technology (CJ), the SS8050W-H by hongjiacheng, the SS8050W by TWGMC and the SS8550 by YONGYUTAI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MMST2222A?
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.