
Overview
The MM1Z20 is a zener Diode made by STMicroelectronics in a SOD-123 package with 2 pins. 1 Independent 100nA 18.8V~21.2V 20V 500mW 50Ω 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. 1,174 are in stock at JLCPCB (part C107583).
Symbol
Footprint
Parameters
6- Diode Configuration
- 1 Independent
- Impedance(Zzt)
- 50Ω
- Pd - Power Dissipation
- 500mW
- Reverse Leakage Current (Ir)
- 100nA
- Zener Voltage(Nom)
- 20V
- Zener Voltage(Range)
- 18.8V~21.2V
Order codes
1- MM1Z20LCSC C107583
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/st/MM1Z20" title="MM1Z20 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/MM1Z20.jpg" alt="MM1Z20" width="1200" height="900">[](https://pcbkit.io/parts/st/MM1Z20)Questions
Is there a KiCad symbol and footprint for the MM1Z20?
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.
What package is the MM1Z20?
SOD-123, with 2 pins. Its footprint is drawn on this page.
Where is the MM1Z20 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the MM1Z20?
JLCPCB lists it as part C107583, with 1,174 in stock; the sellers' links on this page open their listings.
What can replace the MM1Z20?
Parts like it in the library: the MMSZ5250B by hongjiacheng, the MM1W20 by hongjiacheng, the MMSZ4707 by onsemi and the MMSZ5250B by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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