
Encoder
cukier/LoraProgrammer
Firmware ESP32 (ESP-IDF) para programar e configurar módulos de rádio LoRa, expondo a configuração através de um servidor HTTP em Wi-Fi (SoftAP/STA), acessível também via mDNS (http:// .local/).

The 10D390K is a varistor made by RUILON in a 插件 package with 2 pins. 25V 3.5J 3.7nF@1kHz 31V 35V~43V 500A 50mW 77V 插件,P=7.5mm Varistors ROHS.
PCBKit's library has its KiCad symbol (Device:Varistor, from KiCad's library) and its footprint (EasyEDA_Pro:res-th_l12.5-w5.1-p7.50-d1.2-s2.20, from EasyEDA Pro), ready for a KiCad board. 74,407 are in stock at JLCPCB (part C233185). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | — | Passive |
| 2 | — | Passive |

cukier/LoraProgrammer
Firmware ESP32 (ESP-IDF) para programar e configurar módulos de rádio LoRa, expondo a configuração através de um servidor HTTP em Wi-Fi (SoftAP/STA), acessível também via mDNS (http:// .local/).

HakanD1/24v-to-5v-50w-buck-converter-stm32
24V to 5V 50W Digital Controlled Buck Converter Hardware, Software, and Control Design. Features an STM32-based closed-loop PI regulation, 120kHz PWM, custom PCB, and a Nextion HMI display interface.
<iframe src="https://pcbkit.io/embed/parts/ruilon/10D390K" title="10D390K in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ruilon/10D390K.jpg" alt="10D390K" width="1200" height="900">[](https://pcbkit.io/parts/ruilon/10D390K)Yes. The symbol is Device:Varistor and the footprint EasyEDA_Pro:res-th_l12.5-w5.1-p7.50-d1.2-s2.20, both drawn on this page. PCBKit places them on a board for you when you design with it.
插件, with 2 pins. Its footprint is drawn on this page.
RUILON publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C233185, with 74,407 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the VDR-10D270K by VDR Varistor, the 10D390K by HEL, the STE14D820K1EN0FSB0R0 by STE and the STE14D820K1EQ0FQT0R0 by STE. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.