ECMF04-4HSWM10Y Details of body marking,

Arun1 · ‎2025-09-22

Part Number: ECMF04-4HSWM10Y

We have received the part, and the body marking visible in the picture is 'BY3C'. Kindly provide the details of this marking.

Peter BENSCH · ‎2025-09-23

This information can be found in the data sheet, fig. 19 and section 4, where only the last digit of the year is listed and the month is given in hexadecimal.

Hope that answers your question?

Regards
/Peter

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View solution in original post

Peter BENSCH · ‎2025-09-23

This information can be found in the data sheet, fig. 19 and section 4, where only the last digit of the year is listed and the month is given in hexadecimal.

Hope that answers your question?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Arun1 · ‎2025-09-23

I am confusion for Year. You are saying about below list.

From the below details we need to consider the year.?

Peter BENSCH · ‎2025-09-23

The list you inserted has the heading Document revision history, which indicates that these are revisions of this data sheet. However, you can conclude from this list that there cannot be a date code earlier than 2019, as the device was first available in that year.

The year of manufacture indicated in the date code, ‘3’ in your photo, can therefore only be 2023 for the reasons mentioned above.

Regards
/Peter

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