Original Siemens Braking Board /Absorption Board /Surge Protection Board A5E002268102 A5EOO22681O2

Siemens A5E002268102 | Industrial Drive and Automation Spare Part PCB — A5E Series, Germany

Part Number: A5E002268102

Manufacturer: Siemens AG (Germany)

Product Type: Spare Part PCB — A5E Series

Part Series: A5E (Siemens internal spare part component numbering)

Application: Siemens industrial drives, CNC, and automation systems

Country of Origin: Germany

Overview

The A5E002268102 is a Siemens spare part printed circuit board identified under Siemens' A5E internal component numbering system.

The A5E designation is Siemens' structured reference for replacement and spare-part components that are used across its industrial drive, CNC, automation, and power electronics product lines — spanning SINAMICS, SIMOVERT MASTERDRIVES, SIMODRIVE, MICROMASTER, SIMOREG, and associated automation platforms.

Each board or electronic sub-assembly within a Siemens drive or automation product carries a unique A5E reference number, documented in the equipment's spare parts list. The A5E002268102 is the identifier for one specific replaceable board assembly within its host Siemens system.

It serves a defined function — whether as a control board, gate driver assembly, power supply, interface board, or functional sub-assembly — within the drive or automation product for which it is specified.

Siemens manufactures A5E spare parts to the same component standards and production processes as the original boards fitted in manufactured equipment.

Replacement with the correct A5E part number restores the system to the same specification as new, using a board built to the same quality requirements as the original.

Key Specifications

A5E Series — Siemens' Structured Spare Parts System

Siemens' A5E numbering system provides a single, unambiguous identifier for every replaceable electronic component in its industrial product portfolio. When a drive or automation system requires a board replacement, the relevant A5E number — found in the product's service manual spare parts list or on the installed board's label — is the definitive ordering reference.

The system eliminates ambiguity: one number, one board, regardless of which Siemens product it supports.

The A5E002268102 follows this convention.

The number on the board's label identifies it uniquely. It corresponds to one specific board assembly in Siemens' manufacturing system.

The service documentation for the equipment in which this board is installed will list this number in the spare parts table, cross-referenced to the board's physical location and function within that equipment.

For maintenance teams managing Siemens drive or automation installations, recording the A5E numbers of critical replaceable boards in each installed unit — drawn from the unit's service manual — is good maintenance practice.

When a fault occurs, the board's A5E number is immediately available for ordering without the need to first identify the board type during an active failure event.

Quality and Authenticity — Why A5E Part Numbers Matter

The A5E system also serves as an authentication mechanism. Authentic Siemens A5E spare parts are produced on Siemens' validated production lines using qualified components, tested to the same outgoing quality standards as original equipment boards.

The A5E number on the board label allows Siemens and authorised service providers to verify that the board is a genuine Siemens spare, not a counterfeit or generic substitute.

Generic substitutes may superficially resemble the original — similar physical size, similar connector layout — but may use lower-grade components that do not meet the original's thermal, electrical, or reliability specifications.

In the environment of a high-power drive, where temperatures cycle, switching noise is significant, and reliability is critical, the difference between an authentic A5E spare part and a substitute can be measured in years of service life.

For production-critical applications where unplanned downtime is costly, using authentic Siemens A5E spare parts is the safest approach.

The A5E002268102 ordered through Siemens' supply chain or a qualified Siemens distributor carries the traceability and quality assurance that the A5E number implies.

Practical Guidance — Identifying and Ordering A5E Boards

To confirm that the A5E002268102 is the correct spare for a specific piece of equipment, locate the board in question within the drive or automation cabinet and read the part number from the board's label.

If the label shows A5E002268102, this is the correct ordering reference. Cross-reference against the spare parts section of the equipment's service manual or maintenance instructions to confirm.

If the board label is not legible or the board is not physically accessible, the service manual's spare parts list — typically organised by board location within the equipment — will identify the A5E number for each replaceable sub-assembly.

Siemens' online spare parts portal also allows A5E number verification by equipment type.

ESD Handling — Protecting a Sensitive PCB

The A5E002268102 board contains components that are sensitive to electrostatic discharge. A single ESD event during board handling may not cause an immediate failure but can create a latent defect — a weak gate oxide or a reversed-biased junction that operates initially but fails prematurely in service.

Prevent this by always handling the board with an approved ESD wrist strap connected to an appropriate ground point. 

Work on a conductive or dissipative work surface. Keep the board in its original conductive anti-static packaging until installation.

During removal of the failed board and installation of the replacement, avoid touching the board's component side or any exposed connector pins directly. Handle by the edges of the PCB.

Even in environments where ESD awareness is well established, it is worth reinforcing this practice — board-level ESD damage is common and routinely misattributed to other causes.

FAQ

Q1: How do I confirm that A5E002268102 is the correct board for my specific Siemens drive without risking an incorrect order?

Locate the service manual or spare parts documentation for the specific drive model and serial number. The spare parts list identifies each replaceable board by its A5E number and its location within the drive.

Cross-reference the installed board's label with the spare parts list entry. If both show A5E002268102 for the same board position, the part is confirmed correct. 

If the drive's documentation is not available, Siemens' technical support can confirm the correct A5E number using the drive's type designation and serial number.

Q2: The board was damaged during a fault event — a supply surge. The A5E002268102 will be replaced. Should any other boards be inspected before returning the drive to service?

A supply surge severe enough to damage one board may have stressed adjacent boards and components as well. After replacing the A5E002268102, inspect other boards in the drive for signs of surge damage — discoloration, burn marks on components, or bulging capacitors.

If the surge was significant, check the DC bus capacitors (measure capacitance and ESR) and inspect any other boards that are directly connected to the supply rails.

Also investigate and if necessary improve the surge protection at the supply input to the drive cabinet.

Q3: Is the A5E002268102 available as a new part or only as a refurbished spare?

Availability depends on the lifecycle status of the Siemens product platform that uses this board. If the host platform is still in active production, the A5E002268102 may be available new from Siemens or authorised distributors.

For discontinued platforms, new old stock and tested refurbished boards are available from the industrial electronics aftermarket.

Refurbished boards from reputable specialist suppliers are functionally equivalent to new and represent a cost-effective option when new stock is not available.

Q4: What causes A5E series boards to fail in normal industrial service, excluding surge events?

The most common natural failure modes in drive control boards are: electrolytic capacitor degradation (the capacitor dries out over years of thermal cycling, losing capacitance and increasing ESR); solder joint fatigue (thermal cycling causes micro-cracks in through-hole and SMD solder joints, eventually producing intermittent or permanent open circuits); and CMOS component latch-up or oxide degradation caused by cumulative ESD exposure during maintenance over many years.

Board failures attributed to "sudden death" are often the result of these slow degradation processes reaching a threshold — the board appeared fine until it didn't.

Q5: Can the A5E002268102 be repaired at component level rather than replaced if only one component is visibly damaged?

Board-level repair is technically possible for some A5E boards — a failed electrolytic capacitor, a blown discrete transistor, or a failed varistor can be replaced by a skilled electronics technician with the right equipment.

However, component-level repair requires schematic access (often restricted), specific component sourcing, and the ability to rework fine-pitch SMD components without damaging adjacent devices. 

For most maintenance teams, full board replacement with A5E002268102 is more practical and gives a known-good result.

Component repair may be worth pursuing if the board is on a long lead time, if the failure mode is clearly identified, or if a specialist drive repair service is available.