Max Operating Temperatures | Ouster Sensor Docs

Max operating temperatures were calculated through reference tests conducted in Ouster’s thermal chambers. OS0, OS1, and OS2 are tested on HEATSINK-BASE is as shown below:

The results may vary slightly depending on test conditions such as air temperature, air flow, and sensor mounting.

Rev6 and Prior Sensors with FW v2.5.x

Sensor Max Operating Temperature - Gen 1 OS1 with Legacy Cap

Sensor Part Number	Description	Convective Air	Stagnant Air
840-101xxx-03 (with Push-Pull Connector)	Start of Shot Limiting Active (Performance 100% - 70%)	T_chassis = 55ºC T_air = 50ºC	T_chassis = 56ºC T_air = 40ºC
840-101xxx-02 (with Locking Bayonet Connector)	Max Temp Sensor Shutdown	T_chassis = 65ºC T_air = 60ºC	T_chassis = 60ºC T_air = 50ºC

Max Oper. Temp. - Gen2 OS0/1 Rev C with Modular Cap & Locking Bayonet Connector

Sensor Part Number	Description	Convective Air	Stagnant Air
840-102xxx-C	Start of Shot Limiting Active (Performance 100% - 70%)	T_chassis = 52ºC T_air = 47ºC	T_chassis = 52ºC T_air = 37ºC
840-102xxx-C	Max Temp Sensor Shutdown	T_chassis = 65ºC T_air = 60ºC	T_chassis = 60ºC T_air = 45ºC

Max Oper. Temp. - Gen2 OS0/1 Rev D/05/06 with Modular Cap & Locking Bayonet Connector

Sensor Part Number	Description	Convective Air	Stagnant Air
840-102xxx-D 840-102xxx-05 840-102xxx-06	Start of Shot Limiting Active (Performance 100% - 70%)	T_chassis = 58ºC T_air = 52ºC	T_chassis = 52ºC T_air = 37ºC
840-102xxx-D 840-102xxx-05 840-102xxx-06	Max Temp Sensor Shutdown	T_chassis = 65ºC T_air = 60ºC	T_chassis = 65ºC T_air = 50ºC

Without a HEATSINK-BASE, thermal performance decreases by an estimated 4°C

Max Oper. Temp. - Gen2 OS2 Rev D/05/06 with Modular Cap & Locking Bayonet Connector

Sensor Part Number	Description	Convective Air	Stagnant Air
840-102xxx-D 840-102xxx-05 840-102xxx-06	Start of Shot Limiting Active (Performance 100% - 70%)	T_chassis = 62ºC T_air = 52ºC	T_chassis = 62ºC T_air = 50ºC
840-102xxx-D 840-102xxx-05 840-102xxx-06	Max Temp Sensor Shutdown	T_chassis = 75ºC T_air = 62ºC	T_chassis = 71ºC T_air = 60ºC

Rev7 Sensors with FW v3.1.x

Max Operating Temperature - Gen 2 OS0/1/Dome

Sensor Part Number	Description	Convective Air	Stagnant Air
860-10xxxx-07 OS-0/1	Start of Shot Limiting Active (Performance 100% - 70%)	T_chassis = 63ºC T_air = 55ºC	T_chassis = 63ºC T_air = 43ºC
860-10xxxx-07 OS-0/1	Max Temp Sensor Shutdown	T_chassis = 70ºC T_air = 62ºC	T_chassis = 70ºC T_air = 52ºC
860-10xxxx-07 OS-Dome	Start of Shot Limiting Active (Performance 100% - 70%)	T_chassis = 66ºC T_air = 56ºC	T_chassis = 64ºC T_air = 44ºC
860-10xxxx-07 OS-Dome	Max Temp Sensor Shutdown	T_chassis = 70ºC T_air = 60ºC	T_chassis = 70ºC T_air = 50ºC

During Ouster’s testing process, we observed solar load reduces the maximum operating temperature by approximately 8ºC. Please refer to Sunshade Concept Design for inspiration on possible solutions.