PCN-Number / Rev / Date 45448 / 2 / 06.09.2024

Category / change type ACEL active components / PDN Discontinuation / MAJOR


Summary Availability of Control Unit ESX.3xm is limited


Motivation, trigger Status of ESX.3xm is changed to discontinued


The ESX.3xm has already been successful on the market for several

years. Manufacturers of main components for the ESX.3xm such as

transceivers, switches and flashes have issued PTNs (Product Termination Notification).


The main reason, however, is the discontinuation of the μC TC1798 controller from Infineon.

The status of the ESX.3xm will therefore be changed to ‘discontinued’.


At the same time, STW is announcing the ESX.4xm, an almost pin compatible

successor to the ESX.3xm in the same housing, which

contains a 32-bit AURIX controller and additional optimizations.


Delivery of the ESX.4xm samples is planned for end of 2025.

The start of series production (SSOP) is scheduled for mid of 2027.

STW supports you in porting your applications to the ESX.4xm or

other current controllers. Our sales and software departments look forward to

supporting you with this changeover.


You can familiarize yourself with the development environment

immediately by using another 4th generation controller, such as the ESX.4cl-ag.


If you require additional ESX.3xm devices as part of a Last Time Buy

(LTB), please also contact your local sales representative.

Due to the additional procurement costs for components (e.g.

material price, storage costs and qualification costs for the

components), the price for ESX.3xm may increase.


In addition, the warranty period may be limited in the future due to

the delivery conditions of the component manufacturers.


Details of change

Alert impact PDN of a sub-component (supplier of STW)

Company STW TECHNIC, LP

EOS end of sales (LTB) 31.08.2025

LTD Last time delivery 31.03.2027

EOSR end of service and repair 31.12.2030


If you need further assistance, you may also contact your local sales representative or our sales department.

STW shall not be held liable if this notification is not correctly distributed within your organization.


Affected Product - STW part number - Customer part number

ESX-3XM Dummyhousing 49253 n.a.

Controller ESX-3XM 54603 n.a.

Controller ESX-3XM 54604 n.a.

Controller ESX-3XM 56114 n.a.

Controller ESX-3XM 56404 n.a.

Controller ESX-3XM 58274 n.a.

Controller ESX-3XM 58437 n.a.

Controller ESX-3XM 58691 n.a.

Controller ESX-3XM 59616 n.a.

Controller ESX-3XM 59870 n.a.

Controller ESX-3XM 61045 n.a.

Controller ESX-3XM 61098 n.a.

Controller ESX-3XM 61261 n.a.

Controller ESX-3XM 61874 n.a.

Controller ESX-3XM 61902 n.a.

Controller ESX-3XM 62172 n.a.

Controller ESX-3XM 62231 n.a.

Controller ESX-3XM 62243 n.a.

Controller ESX-3XM 62244 n.a.

Controller ESX-3XM 62480 n.a.

Controller ESX-3XM 62499 n.a.

Controller ESX-3XM 62909 n.a.

Controller ESX-3XM 62968 n.a.

Controller ESX-3XM 62969 n.a.

Controller ESX-3XM 63012 n.a.

Controller ESX-3XM 64170 n.a.

Controller ESX-3XM 64185 n.a.

Controller ESX-3XM 64528 n.a.

Controller ESX-3XM 64571 n.a.

Controller ESX-3XM 65745 n.a.

Controller ESX-3XM 65779 n.a.

Controller ESX-3XM 67130 n.a.

Controller ESX-3XM 67219 n.a.

Controller ESX-3XM 67348 n.a.

Controller ESX-3XM 68161 n.a.

Controller ESX-3XM 68165 n.a.

Controller ESX-3XM 68216 n.a.

Controller ESX-3XM 69387 n.a.

Controller ESX-3XM 69919 n.a.

Controller ESX-3XM 69979 n.a.

Controller ESX-3XM 69985 n.a.

Controller ESX-3XM 70007 n.a.

Controller ESX-3XM 70221 n.a.

Controller ESX-3XM 70373 n.a.

Controller ESX-3XM 72509 n.a.

Controller ESX-3XM 73787 n.a.

Controller ESX-3XM 74119 n.a.

Controller ESX-3XM 75794 n.a.

Controller ESX-3XM 76081 n.a.

Controller ESX-3XM 77480 n.a.

Controller ESX-3XM 77568 n.a.

Controller ESX-3XM 78229 n.a.

Controller ESX-3XM 79184 n.a.

Controller ESX-3XM 80989 n.a.

Controller ESX-3XM 81010 n.a.

Controller ESX-3XM 82333 n.a.

Controller ESX-3XM 82705 n.a.

Controller ESX-3XM 83031 n.a.

Controller ESX-3XM 83038 n.a.

Controller ESX-3XM 83373 n.a.

Controller ESX-3XM 86895 n.a.

Controller ESX-3XM 92412 n.a.

Controller ESX-3XM 92421 n.a.

Controller ESX-3XM 92857 n.a.

Controller ESX-3XM 93549 n.a.

Controller ESX-3XM 94317 n.a.

Controller ESX-3XM 107886 n.a.

Controller ESX-3XM 64109 100632372

Controller ESX-3XM 60331 100813965

Controller ESX-3XM 82701 100913351

Controller ESX-3XM 107758 101076471

Controller ESX-3XM 105789 101076524

Controller ESX-3XM 104870 101085590

Controller ESX-3XM 57522 57522

Controller ESX-3XM 57633 57633

Controller ESX-3XM 58013 58013

Controller ESX-3XM 60527 60527

Controller ESX-3XM 79255 713587