The 6ES7443-1EX20-0XE0: Rated: mature. For a shutdown planner or MRO buyer, that means the part is still on the manufacturer's active list — no LTB clock is ticking. The typical lead time window is 1–10 working days, so it lands inside a planned outage window without a rush surcharge.

Siemens 6ES7443-1EX20-0XE0 SIMATIC S7-400 CP, mature lifecyc
Siemens SIMATIC S7-400 Communications Processor, 6ES7443-1EX20-0XE0, mature lifecycle, 10 kg shipping weight.
Specifications
| Parameter | Value |
|---|---|
| Shipping weight | 10 Kg |
| Manufacturer | Siemens |
| Estimated lead time | Usually ships in 1-10 working days. |
Product details
Frequently asked questions
What is the lead time for this part?
The estimated lead time is usually 1–10 working days. That is the window we quote against an RFQ; a firm date is confirmed at order placement.
Will the 6ES7443-1EX20-0XE0 replace a 6ES7138-4DB030?
No. The 6ES7138-4DB030 is an ET 200S electronics module — a completely different platform, form factor, and backplane interface. The 6ES7443-1EX20-0XE0 is an S7-400 communications processor and will not drop into a panel wired for ET 200S without a full redesign.