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  2. PCN/PDN/NRND信息

PCN/PDN/NRND信息

PCN（产品/工艺变更通知）和PDN（生产中断通知）信息。

通知日期 通知文书 通知类型 通知信息
2023/07/22 PCN（产品规格变更通知） Increased peak reflow soldering temperature - Second source for the microphone~- A laser marking on the side of the cap will be introduced containing the~product type - SCD41 material number change
2024/09/22 PCN（产品规格变更通知） Sensirion is happy to announce that we have an improvement in the Moisture~Sensitivity Level of SCD4x sensors. This Info letter number243401 announces an~update to the MSL rating of SCD4x sensors to Moisture Sensitivity Level 1 from~Moisture Sensitivity Level 3
2025/02/10 PCN（产品规格变更通知） Supplier Notice No.:243401, Version 3
Title:
SCD4x Moisture Sensitivity Level Improvement

Change Description:
This is an updated version of Infoletter No. 243401 providing a concrete implementation date in production for
the minor change to the ESD-bag labelling and content announced previously.

Specification improvement to Moisture Sensitivity Level 1:
SCD40 (Art. Nr. 3.000.496 and 3.00.521) and SCD41 (Art. Nr. 3.000.960 and 3.000.961) sensors, originally
specified with a Moisture Sensitivity Level of 3 (MSL3), are respecified with a Moisture Sensitivity Level of 1
(MSL1) according to IPC/JEDEC J-STD-020.

Resulting minor change to the ESD-bag content & labelling:
ESD-Bags within which SCD4x sensor reels are shipped will no longer include dessicant, a humidity indicator
card, exterior MSID or caution labels in accordance with IPC/JEDEC J-STD-033.

All reels with production date on or after February 10th 2025 (Date Code 2507) will have adapted ESD-bag content
& labelling.
2025/08/11 PCN（产品规格变更通知） PCN No.:None
Change Desc.:The lead times for some of our evaluation kits are currently longer than usual due to a missing component from our cable manufacturer.

The first shipment of the affected kits is scheduled for CW33 (August 11th-15th, 2025), and from that point onward, we expect lead times to return to normal. We are actively working with our supplier to prioritize our orders as soon as the issue is resolved.
Should this impact the kickoff of a critical project, feel free to contact your local Sensirion’s representative,who will support you in identifying an appropriate solution.
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