> For the complete documentation index, see [llms.txt](https://brlabelectronics.gitbook.io/hardware-1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://brlabelectronics.gitbook.io/hardware-1/technical-specifications/absolute-maximum-ratings.md).

# Absolute Maximum Ratings

These are technical specifications for the relay shield. Please refer to the development board datasheet for specific technical details about the board you are using. 

<table><thead><tr><th width="425">Parameter</th><th width="63" align="center">Min</th><th width="69" align="center">Typ</th><th width="90" align="center">Max</th><th width="78" align="center">Unit</th></tr></thead><tbody><tr><td>Supply Input Voltage</td><td align="center"></td><td align="center"></td><td align="center">+14</td><td align="center">V</td></tr><tr><td>Battery Input Voltage</td><td align="center"></td><td align="center"></td><td align="center">+6.5</td><td align="center">V</td></tr><tr><td>Buck Converter Supply Voltage</td><td align="center"></td><td align="center"></td><td align="center">+5.5</td><td align="center">V</td></tr><tr><td>Buck Converter Supply Current</td><td align="center"></td><td align="center"></td><td align="center">3</td><td align="center">A</td></tr><tr><td>Boost Converter Supply Voltage</td><td align="center"></td><td align="center"></td><td align="center">+5.5</td><td align="center">V</td></tr><tr><td>Boost Converter Supply Current</td><td align="center"></td><td align="center"></td><td align="center">2</td><td align="center">A</td></tr><tr><td>3V3 Power Supply</td><td align="center"></td><td align="center">+3.3</td><td align="center"></td><td align="center">V</td></tr><tr><td>3V3 Supply Current</td><td align="center"></td><td align="center">1.35</td><td align="center"></td><td align="center">A</td></tr><tr><td>Power Relay Switching Voltage</td><td align="center"></td><td align="center"></td><td align="center">250, 30</td><td align="center">VAC, VDC</td></tr><tr><td>Power Relay Switching Current (Resistive Load)</td><td align="center"></td><td align="center"></td><td align="center">10</td><td align="center">A</td></tr><tr><td>Power Relay Switching Current (Inductive Load)</td><td align="center"></td><td align="center"></td><td align="center">5</td><td align="center">A</td></tr></tbody></table>

Using the board beyond the absolute maximum ratings listed above may cause permanent damage to the board and possibly the development board.