Sensor Cooling & Dark Current Calculator

Estimate dark current at any temperature or find the temperature needed for a target dark current.

Forward: Temperature → Dark Current

Room-temp dark current

Room temperature

Target temperature

Halving constant?

Integration time

Dark Current at Target Temperature

Dark current

0.0013e⁻/p/s

Dark charge

in 10 s

0.0135e⁻

Dark noise

0.1161e⁻ rms

Temperature drop

105.0°C

Number of halvings

17.500

Dark Current vs. Temperature

25 °C

250.0e⁻/p/s

0 °C

13.920e⁻/p/s

-20 °C

1.381e⁻/p/s

-40 °C

0.1370e⁻/p/s

-60 °C

0.0136e⁻/p/s

-80 °C

1.35e-3e⁻/p/s

-100 °C

1.34e-4e⁻/p/s

-120 °C

1.33e-5e⁻/p/s

Abridged Optics — Sensor Cooling Calculator v1.0I_d(T₂) = I_d(T₁) × 2^(−(T₁−T₂)/T_d). T_d ≈ 5–7 °C for silicon.