www.sensirion.com

Version 3 – May 2014

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Command MSB

Command LSB

Figure 8 Command access communication sequence. The example shows a soft reset command. Clear blocks are controlled by the

microcontroller, grey blocks by the SHTC1.

6 Quality

6.1 Environmental Stability

Qualification of the SHTC1 is performed based on the

JEDEC JESD47 qualification test method.

6.2 Material Contents

The device is fully RoHS and WEEE compliant, e.g. free of

Pb, Cd, and Hg.

7 Packaging and Traceability

SHTC1 sensors are provided in a DFN package with an

DFN stands for dual flat no leads. The humidity sensor

opening is centered on the top side of the package.

The sensor chip is made of silicon and is mounted to a

lead frame. The latter is made of Cu plated with Ni/Pd/Au.

Chip and lead frame are overmolded by a green epoxy-

based mold compound. Please note that the side walls of

sensor are diced and therefore these diced lead frame

surfaces are not covered with the respective plating.

The Moisture Sensitivity Level classification of the STSC1

is MSL1, according to IPC/JEDEC J-STD-020.

All SHTC1 sensors are laser marked for easy identification

and traceability. The marking on the sensor consists of two

lines and a pin-1 indicator. The top line contains the

sensor type (SHTC1), the bottom line contains a 5-digit,

alphanumeric tracking code. The pin-1 indicator is located

in the top left corner. See Figure 9

Figure 9 Laser marking on SHTC1, the top line with the pin-1

indicator and the sensor type, the bottom line with the 5-digit

alphanumeric tracking code.

Reels are also labeled and provide additional traceability

information.

8 Ordering Information

The SHTC1 can be ordered in tape and reel packaging

with different sizes, see Table 14. The reels are sealed into

antistatic ESD bags. A drawing of the packaging tape with

sensor orientation is shown in Figure 12.

Quantity Packaging

Reel Diameter

Order Number

1’000

Tape & Reel 180 mm (7 inch) 1-101110-01

10’000

Tape & Reel 330 mm (13 inch) 1-100925-01

Table 14 SHTC1 ordering options.

SHTC1

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