
Overview
The BZX55C20 is a zener Diode made by STMicroelectronics in a DO-35 package with 2 pins. 1 Independent 100nA 18.8V~21.2V 20V 220Ω 500mW 55Ω DO-35 Zener Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D_Zener, from KiCad's library) and its footprint (EasyEDA_Cloud:DO-35_BD2.0-L4.2-P8.20-D0.5-R-RD, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2526).
Symbol
Footprint
Parameters
7- Diode Configuration
- 1 Independent
- Impedance(Zzk)
- 220Ω
- Impedance(Zzt)
- 55Ω
- Pd - Power Dissipation
- 500mW
- Reverse Leakage Current (Ir)
- 100nA
- Zener Voltage(Nom)
- 20V
- Zener Voltage(Range)
- 18.8V~21.2V
Order codes
1- BZX55C20LCSC C2526
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/st/BZX55C20" title="BZX55C20 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/BZX55C20.jpg" alt="BZX55C20" width="1200" height="900">[](https://pcbkit.io/parts/st/BZX55C20)Questions
Is there a KiCad symbol and footprint for the BZX55C20?
Yes. The symbol is Device:D_Zener and the footprint EasyEDA_Cloud:DO-35_BD2.0-L4.2-P8.20-D0.5-R-RD, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BZX55C20?
DO-35, with 2 pins. Its footprint is drawn on this page.
Where is the BZX55C20 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the BZX55C20?
JLCPCB lists it as part C2526, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BZX55C20?
Parts like it in the library: the 1N6007A by Microchip Technology, the TC20VTB by Tak Cheong, the BZV55C20 by LGE and the MMSZ5250B by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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