STS4xA temperature sensor includes on-board diagnosis

The STS4xA is a digital temperature sensor series specifically designed by Sensirion for automotive applications. The sensor series supports automated optical inspection and includes an on-board diagnosis system.

The digital automotive sensor is available in two versions: STS41A-AD1B and STS41A-AW1B. The latter offers optional wettable flank packaging to support automated optical inspection (AOI). The integrated on-chip heater enables on-board diagnosis (OBD), going beyond simple presence checks.

The STS4xA temperature sensors deliver a wide supply voltage range of 2.3 to 5.5V, with a typical temperature accuracy of 0.3 degrees C and a wide operating temperature range of -40 to +125 degrees C. 

Described as a cost-efficient temperature sensor, the STS4xA features an I²C interface and is supplied in a small, four-pin dual-flat no-leads (DFN) package, with dimensions of just 1.5 x 1.5 x 0.5mm. It is compact enough to be integrated into a variety of automotive applications. It also meets relevant industry standards, such as 85 degrees C / 85 per cent RH accelerated life tests.

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