
Overview
The MM3Z20 is a zener Diode made by HT in a SOD-323 package with 2 pins. 1 Independent 100nA@15V 18.8V~21.2V 20V 300mW 50Ω ±5% SOD-323 Zener Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:MM3Zxx, from KiCad's library) and its footprint (Diode_SMD:D_SOD-323, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C746256).
Symbol
Footprint
Parameters
7- Diode Configuration
- 1 Independent
- Impedance(Zzt)
- 50Ω
- Pd - Power Dissipation
- 300mW
- Reverse Leakage Current (Ir)
- 100nA@15V
- Tolerance
- ±5%
- Zener Voltage(Nom)
- 20V
- Zener Voltage(Range)
- 18.8V~21.2V
Order codes
1- MM3Z20LCSC C746256
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/ht/MM3Z20" title="MM3Z20 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ht/MM3Z20.jpg" alt="MM3Z20" width="1200" height="900">[](https://pcbkit.io/parts/ht/MM3Z20)Questions
Is there a KiCad symbol and footprint for the MM3Z20?
Yes. The symbol is Diode:MM3Zxx and the footprint Diode_SMD:D_SOD-323, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MM3Z20?
SOD-323, with 2 pins. Its footprint is drawn on this page.
Where is the MM3Z20 datasheet?
HT publishes it: the Datasheet link on this page opens it.
Where can I order the MM3Z20?
JLCPCB lists it as part C746256, with 0 in stock; the sellers' links on this page open their listings.
What can replace the MM3Z20?
Parts like it in the library: the BZX384-C20 by Nexperia, the SZMM3Z20VT1GX by Nexperia, the MM3Z20 by CBI and the MM3Z20 by Shandong Jingdao Microelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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