MagicGlow smart key tray annular PCB with dual WS2812B rings, ESP32-C6 control, HX711 load-cell interface, USB-C power/UART access, buzzer, and button.

800-mA Linear Charger for 1- to 4-Cell Supercapacitor, 40-V load-dump tolerant to support charging backup supercapacitor, 3-V to 18-V operating Integrated fault protection – 18-V IN overvoltage protection – 1000-mA overcurrent protection – 125°C thermal regulation; 150°C thermal shutdown protection – ISET pin short protection

The L293 and L293D, manufactured by Texas Instruments, are quadruple high-current half-H drivers designed to drive inductive loads such as relays, solenoids, DC, and bipolar stepping motors, among other high-current/high-voltage loads in positive-supply applications. These components cater to a wide supply-voltage range from 4.5 V to 36 V. The L293 can provide bidirectional drive currents of up to 1 A, whereas the L293D variant supports up to 600 mA, incorporating output clamp diodes for inductive transient suppression. With separate input-logic supply, their internal architecture enables high noise immunity and low power dissipation. These drivers are enabled in pairs, with the enable input controlling the state of the drivers, which are designed to work in high-impedance states when disabled. Markedly, the L293D is distinctively packaged with internal ESD protection and a thermal shutdown feature to safeguard against excessive heat and electric static discharge, ensuring reliability and stability in operation. Collectively, the L293 and L293D are functionally similar to SGS L293 and L293D and are characterized for operation from 0℃ to 70°C, structured to meet a broad array of motor driving requirements with their robust design and advanced features.

Coconut power supply board is a power management board designed to deliver stable and reliable power supply to your industrial loads.

The NJM4565 is a high-gain, wide-bandwidth, dual low noise operational amplifier capable of driving 20V peak-to-peak into 400Ω loads. The NJM4565 is good characteristics compared to the NJM4560.