
Overview
The MMBZ5251BW is a zener Diode made by Diodes Incorporated in a SOT-323 package with 5 pins.
PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-323_SC-70, from KiCad's library), ready for a KiCad board. 35 are in stock at JLCPCB (part C5249094).
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
8- Diode Configuration
- 1 Independent
- Impedance(Zzk)
- 600Ω
- Impedance(Zzt)
- 29Ω
- Operating Junction Temperature Range
- -65℃~+150℃
- Pd - Power Dissipation
- 200mW
- Reverse Leakage Current (Ir)
- 100nA@17V
- Zener Voltage(Nom)
- 22V
- Zener Voltage(Range)
- 20.9V~23.1V
Order codes
2- MMBZ5251BW-7LCSC C3729312
- MMBZ5251BW-7-FLCSC C5249094
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<iframe src="https://pcbkit.io/embed/parts/diodes/MMBZ5251BW" title="MMBZ5251BW in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/diodes/MMBZ5251BW.jpg" alt="MMBZ5251BW" width="1200" height="900">[](https://pcbkit.io/parts/diodes/MMBZ5251BW)Questions
Is there a KiCad symbol and footprint for the MMBZ5251BW?
Yes. the footprint Package_TO_SOT_SMD:SOT-323_SC-70, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MMBZ5251BW?
SOT-323, with 5 pins. Its footprint is drawn on this page.
Where is the MMBZ5251BW datasheet?
Diodes Incorporated publishes it: the Datasheet link on this page opens it.
Where can I order the MMBZ5251BW?
JLCPCB lists it as part C5249094, with 35 in stock; the sellers' links on this page open their listings.
What can replace the MMBZ5251BW?
Parts like it in the library: the BZX84C22W by Diodes Incorporated, the BZX84W-B22F by Nexperia, the BZX84W-B22X by Nexperia and the BZX84W-C22X by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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