
IR Schreib Lesekopf RS232 Neu
ju6ge/volkszaehler_ir_pcbs_kicad
Converted Volkszaehler PCB Layouts to KiCAD

The MMSZ4689 is a zener Diode made by Jiangsu Changjing Electronics Technology (CJ) in a SOD-123 package with 2 pins. -65℃~+150℃ 1 Independent 10uA@3V 350mW 4.85V~5.36V 5.1V SOD-123 Zener Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D_Zener, from KiCad's library) and its footprint (Diode_SMD:D_SOD-123, from KiCad's library), ready for a KiCad board. 25,409 are in stock at JLCPCB (part C21509). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |

ju6ge/volkszaehler_ir_pcbs_kicad
Converted Volkszaehler PCB Layouts to KiCAD

greenMikeEU/shrdzm
SHRDZM (just a name, not an acronym) is an ESP8285/ESP8266 based sensor and actor integration platform.
<iframe src="https://pcbkit.io/embed/parts/cj/MMSZ4689" title="MMSZ4689 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/MMSZ4689.jpg" alt="MMSZ4689" width="1200" height="900">[](https://pcbkit.io/parts/cj/MMSZ4689)Yes. The symbol is Device:D_Zener and the footprint Diode_SMD:D_SOD-123, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOD-123, with 2 pins. Its footprint is drawn on this page.
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C21509, with 25,409 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the BZT52B5V1 by hongjiacheng, the BZT52C5V1 by hongjiacheng, the BZT52C5V1 by MDD and the BZT52C5V1 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.