
Overview
The MM1Z51 is a zener Diode made by HT in a SOD-123 package with 2 pins. 1 Independent 180Ω 1uA@39V 48V~54V 500mW 51V ±5% 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. 2,332 are in stock at JLCPCB (part C26338138).
Symbol
Footprint
Parameters
7- Diode Configuration
- 1 Independent
- Impedance(Zzt)
- 180Ω
- Pd - Power Dissipation
- 500mW
- Reverse Leakage Current (Ir)
- 1uA@39V
- Tolerance
- ±5%
- Zener Voltage(Nom)
- 51V
- Zener Voltage(Range)
- 48V~54V
Order codes
1- MM1Z51LCSC C26338138
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/MM1Z51" title="MM1Z51 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/MM1Z51.jpg" alt="MM1Z51" width="1200" height="900">[](https://pcbkit.io/parts/ht/MM1Z51)Questions
Is there a KiCad symbol and footprint for the MM1Z51?
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 MM1Z51?
SOD-123, with 2 pins. Its footprint is drawn on this page.
Where is the MM1Z51 datasheet?
HT publishes it: the Datasheet link on this page opens it.
Where can I order the MM1Z51?
JLCPCB lists it as part C26338138, with 2,332 in stock; the sellers' links on this page open their listings.
What can replace the MM1Z51?
Parts like it in the library: the MMSZ5262B by onsemi, the MM1Z51 by CBI, the LMSZ5262BT1G by Leshan Radio (LRC) and the BZT52C51 by NH. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8MMSZ5262B
SOD-123-55℃~+150℃ 1 Independent 1.1kΩ 100nA@39V 125Ω 48.45V~53.55V 500mW 51V SOD-123 Zener Diodes ROHSonsemiZener DiodesMM1Z51
SOD-1231 Independent 180Ω 1uA@39V 48V~54V 500mW 51V ±5% SOD-123 Zener Diodes ROHSCBIZener DiodesLMSZ5262BT1G
SOD-123-55℃~+150℃ 1 Independent 1.1kΩ 100nA@39V 125Ω 48.45V~53.55V 500mW 51V SOD-123 Zener Diodes ROHSLeshan Radio (LRC)Zener DiodesBZT52C51
SOD-123Zener DiodesNHMM1Z51
SOD-123-55℃~+150℃ 1 Independent 180Ω 1uA 48V~54V 500mW 51V SOD-123 Zener Diodes ROHSShandong Jingdao MicroelectronicsZener DiodesBZT52C51
SOD-1231 Independent 180Ω 1uA@39V 48V~54V 500mW 51V SOD-123 Zener Diodes ROHSShikuesZener DiodesMMSZ5262B-E3-08
SOD-123Zener DiodesVishay IntertechnologyMMSZ51VCW
SOD-1231 Independent 180Ω 376Ω 45nA@35.7V 48.45V~53.55V 500mW 51V SOD-123 Zener Diodes ROHSTak CheongZener Diodes