The may not exist as a single official document, but the electrical, mechanical, and timing specifications are well-defined by the components that make up this ubiquitous relay module. With its opto-isolated design, jumper-selectable logic, and 10A switching capability, the YL105 is an excellent choice for hobbyist and industrial applications alike.

The YL105 datasheet also provides information about the component's thermal properties, which are crucial for ensuring reliable operation:

The YL105 datasheet includes mechanical specifications that are essential for designing and assembling electronic circuits:

The YL-105 handles these issues directly by decoupling the transceiver power rail through the dedicated AMS1117 regulator. It also includes dual SMD filtering capacitors located near the inputs and outputs to smooth out rapid transceived power transitions. Hardware Pinout Configuration

Furthermore, the inclusion of bypass capacitors on the YL-105 board addresses the "brown-out" issues that frequently plague nRF24L01 setups. These capacitors act as local energy reservoirs, smoothing out voltage dips during the module's sudden power-hungry transmission cycles. In the absence of such stabilization, communication often fails or becomes inconsistent—a frustration that many developers mitigate by manually soldering capacitors onto the module itself.