2 layers52.8 × 30 mm
Overview
The MMBZ5231B is a zener Diode made by Jiangsu Changjing Electronics Technology (CJ) in a SOT-23 package with 3 pins. 1 Independent 17Ω 300mW 4.85V~5.36V 5.1V 5uA@2V SOT-23 Zener Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:MMBZxx, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 5,224 are in stock at JLCPCB (part C193734). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
8- Diode Configuration
- 1 Independent
- Impedance(Zzk)
- 1.6kΩ
- Impedance(Zzt)
- 17Ω
- Operating Junction Temperature Range
- -55℃~+150℃
- Pd - Power Dissipation
- 300mW
- Reverse Leakage Current (Ir)
- 5uA@2V
- Zener Voltage(Nom)
- 5.1V
- Zener Voltage(Range)
- 4.85V~5.36V
Order codes
1- MMBZ5231BLCSC C193734
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | K | Passive |
| 3 | A | Passive |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/cj/MMBZ5231B" title="MMBZ5231B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/MMBZ5231B.jpg" alt="MMBZ5231B" width="1200" height="900">[](https://pcbkit.io/parts/cj/MMBZ5231B)Questions
Is there a KiCad symbol and footprint for the MMBZ5231B?
Yes. The symbol is Diode:MMBZxx and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MMBZ5231B?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the MMBZ5231B datasheet?
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
Where can I order the MMBZ5231B?
JLCPCB lists it as part C193734, with 5,224 in stock; the sellers' links on this page open their listings.
What can replace the MMBZ5231B?
Parts like it in the library: the BZB84-B5V1 by Nexperia, the BZX84C5V1-7-F by Diodes Incorporated, the BZX84C5V1 by hongjiacheng and the BZX84C5V1 by HXY MOSFET. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MMBZ5231B?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
BZB84-B5V1
SOT-231 Pair Common Anode 2uA@2V 300mW 5.1V 5V~5.2V 60Ω SOT-23 Zener Diodes ROHSNexperiaZener DiodesBZX84C5V1-7-F
SOT-23-65℃~+150℃ 1 Independent 2uA@2V 350mW 4.8V~5.4V 480Ω 5.1V 60Ω SOT-23 Zener Diodes ROHSDiodes IncorporatedZener DiodesBZX84C5V1
SOT-23Zener DiodeshongjiachengBZX84C5V1
SOT-23-40℃~+125℃ 1 Independent 2uA@2V 300mW 4.8V~5.4V 480Ω 5.1V 60Ω SOT-23 Zener Diodes ROHSHXY MOSFETZener DiodesLBZX84C5V1LT1G
SOT-23-55℃~+150℃ 1 Independent 2uA 300mW 4.8V~5.4V 5.1V 60Ω SOT-23 Zener Diodes ROHSLeshan Radio (LRC)Zener DiodesBZX84C5V1
TO-236-65℃~+150℃ 1 Independent 2uA@2V 350mW 4.8V~5.4V 5.1V 60Ω TO-236 Zener Diodes ROHSSTMicroelectronicsZener DiodesMMBZ5231BLT1G
SOT-23-55℃~+150℃ 1 Independent 2uA@2V 300mW 4.85V~5.36V 5.1V 60Ω SOT-23 Zener Diodes ROHSFUXINSEMIZener DiodesBZX84C5V1
SOT-23-65℃~+150℃ 1 Independent 20uA@2V 350mW 4.8V~5.4V 480Ω 5.1V 60Ω SOT-23 Zener Diodes ROHSGuangdong HottechZener Diodes