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 as shown below:

OS0, OS1 Mounting Image — OS0, OS1 Mounting

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

Rev6 and Prior Sensors — FW v2.5.x

Gen 1 OS1 with Legacy Cap

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

Gen2 OS0/1 Rev C — Modular Cap & Locking Bayonet Connector

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

Gen2 OS0/1 Rev D/05/06 — Modular Cap & Locking Bayonet Connector

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

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

Gen2 OS2 Rev D/05/06 — Modular Cap & Locking Bayonet Connector

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

Rev7 Sensors — FW v3.x.x

Gen 2 OS0/1/Dome

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

During testing, solar load reduces the maximum operating temperature by approximately 8°C. See Sunshade Concept Design for possible solutions.