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1.2 Temperature

Parameter

Conditions

Value

Units

SHT33 T Accuracy1

typ.

0.48

°C

max.

See Figure 2

-

Repeatability2

high

0.04

°C

medium

0.08

°C

low

0.15

°C

Resolution4

-

0.01

°C

Specified range5

-

–40 to +125

°C

Response time10

������63%

>2

s

Long-term drift

typ.

<0.01

°C/y

Table 2. General temperature sensor specifications.

1.3 Recommended Operating Conditions

The sensor shows best performance when operated within recommended normal temperature and

humidity range of 5 °C

– 60 °C and 20 %RH – 80 %RH, respectively. Long-term exposure to

conditions outside normal range, especially at high humidity, may temporarily offset the RH signal

(e.g. +3 %RH after 60 h kept at >80 %RH). After returning into the normal temperature and humidity

range the sensor will slowly come back to calibration state by itself. Prolonged exposure to extreme

conditions may accelerate ageing. To ensure stable operation of the humidity sensor, the

conditions described in the document “SHTxx Assembly of SMD Packages” [1], section “Storage

and Handling Instructions” regarding exposure to volatile organic compounds have to be met.

Please note as well that this does apply not only to transportation and manufacturing, but also to

operation of the SHT33-DIS.

10 Temperature response time depends on heat conductivity of sensor substrate and design-in of sensor in application.

±0.0

±0.5

±1.0

±1.5

-40

-20

0

20

40

60

80

100

120

Temperature (°C)

maximal tolerance

DT (°C)

Figure 2. Maximal temperature accuracy. The green lines represent the calibration points for ISO-17025.