
Overview
The ZMM18B is a zener Diode made by MSKSEMI in a LL-34 package with 2 pins.
PCBKit's library has its KiCad symbol (Diode:ZMMxx, from KiCad's library) and its footprint (Diode_SMD:D_MiniMELF, from KiCad's library), ready for a KiCad board. 1,688 are in stock at JLCPCB (part C5359987).
Symbol
Footprint
Parameters
7- Diode Configuration
- 1 Independent
- Impedance(Zzk)
- 170Ω
- Impedance(Zzt)
- 50Ω
- Pd - Power Dissipation
- 500mW
- Reverse Leakage Current (Ir)
- 100nA
- Zener Voltage(Nom)
- 18V
- Zener Voltage(Range)
- 17.64V~18.36V
Order codes
1- ZMM18BLCSC C5359987
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/msksemi/ZMM18B" title="ZMM18B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/msksemi/ZMM18B.jpg" alt="ZMM18B" width="1200" height="900">[](https://pcbkit.io/parts/msksemi/ZMM18B)Questions
Is there a KiCad symbol and footprint for the ZMM18B?
Yes. The symbol is Diode:ZMMxx and the footprint Diode_SMD:D_MiniMELF, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ZMM18B?
LL-34, with 2 pins. Its footprint is drawn on this page.
Where is the ZMM18B datasheet?
MSKSEMI publishes it: the Datasheet link on this page opens it.
Where can I order the ZMM18B?
JLCPCB lists it as part C5359987, with 1,688 in stock; the sellers' links on this page open their listings.
What can replace the ZMM18B?
Parts like it in the library: the ZMM18V by YONGYUTAI, the BZV55C18 by LGE, the ZMM18V by HXY MOSFET and the ZMM18V by JSMSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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