The SMBJ20A is an ESD And Surge Protection made by MDD in a DO-214AA(SMB) package with 2 pins. -65℃~+150℃ 18.6A 1uA 20V 24.5V 32.4V 600W TVS Unidirectional DO-214AA(SMB) ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (Diode_SMD:D_SMB, from KiCad's library), ready for a KiCad board. 179,631 are in stock at JLCPCB (part C364296). 18 open-source boards in 15 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
zeodotdev/zeo-boards
ESP32-S3 development board with onboard BME280 (temperature, humidity, pressure) and LSM6DS3 (6-axis IMU) sensors. This repo contains the designs, ESP-IDF firmware, and a Python plotter for visualization.
MG-5/buck-converter-automotive
12V-to-5V buck converter for automotive purposes
kocer/direct-sampling-sdr
Direct-sampling SDR transceiver with four phase-coherent channels, and a class-A power amplifier for 1.8 to 54 MHz.
Rivercraft911/R-01_Raster_Laser_Projector
Red, blue and green lasers combine through two dichroc mirrors and bounce off a spinning polygon mirror, which each mirror facet makes one scanline.
AtlasAutoware/carv2
Atlas Autoware car v2: drive board (ESC, BMS, USB-C charging), Jetson carrier, printed kit
JoeyStrandnes/AutoTiller
Open source DIY device for steering boats with tillers
Arrow-air/project-caribou
Project Caribou documentation, designs, and project artifacts.
<iframe src="https://pcbkit.io/embed/parts/mdd/SMBJ20A" title="SMBJ20A in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/mdd/SMBJ20A.jpg" alt="SMBJ20A" width="1200" height="900">[](https://pcbkit.io/parts/mdd/SMBJ20A)Yes. The symbol is Device:D_TVS and the footprint Diode_SMD:D_SMB, both drawn on this page. PCBKit places them on a board for you when you design with it.
DO-214AA(SMB), with 2 pins. Its footprint is drawn on this page.
MDD publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C364296, with 179,631 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SMBJ20A by BORN, the SMBJ20A by GOODWORK, the SMBJ20CA by GOODWORK and the SMBJ20A by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
18 boards in 15 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
