Description
Product Overview
The Bosch Rexroth VT-TSPD-1-1X/V0/0 R900208591 is identified as an extension board associated with digital valve amplifier equipment. Its role is within the electronics assembly used in electrohydraulic control applications, where valve amplifier electronics process command and feedback signals to regulate proportional valve operation. The R900208591 material number is associated with the VT-TSPD-1-1X/V0/0 designation in product identification records. This distinction matters when sourcing a replacement: the part should be treated as an electronic board assembly, not as a complete hydraulic valve or a standalone amplifier module.
For maintenance and procurement teams, the main challenge is confirming the exact board configuration and its relationship to the installed amplifier. A similar-looking Rexroth board may have a different electrical layout, mounting arrangement, or application. The VT-TSPD-1-1X/V0/0 R900208591 should therefore be matched by its material number, printed board designation, connector layout, and any revision markings. Product records describe it as a stand-off-mounted extension board for a digital valve amplifier card, but do not provide a verified pinout or complete electrical specification.
Before installation, compare the replacement with the original assembly and consult the applicable Rexroth wiring and service documentation. Check connector condition, board damage, contamination, mounting hardware, and evidence of previous repair. Do not assume that another VT-series amplifier board is electrically interchangeable. A correct material-number match and a documented inspection are more useful than relying on a broad product-family description.
Product Introduction
A small extension board can create a significant commissioning problem if its connector arrangement or electrical assignment differs from the original. In a hydraulic control cabinet, an incorrect board substitution may affect the amplifier assembly even when the replacement appears mechanically compatible.
For R900208591, verify the material number and the full VT-TSPD-1-1X/V0/0 designation. Obtain clear photographs of both board sides and the installed connector arrangement before approving a replacement.
Key Technical Specifications
| Parameter | Verified information |
|---|---|
| Manufacturer | Bosch Rexroth |
| Material Number | R900208591 |
| Model Designation | VT-TSPD-1-1X/V0/0 |
| Product Type | Extension board |
| Associated Equipment | Digital valve amplifier card |
| Mounting Description | Stand-off mount |
| Product Category | Electronic control board |
| Supply Voltage | Not verified |
| Input / Output Signals | Not verified |
| Connector Pinout | Not verified |
| Compatible Amplifier Models | Not verified |
| Operating Temperature | Not verified |
| Protection Rating | Not verified |
| Dimensions | Not verified |
| Lifecycle | Listed as discontinued in secondary product records |
Identification caution: Some third-party descriptions incorrectly associate the R900208591 number with unrelated hydraulic valve characteristics. Those specifications—including flow rate, operating pressure, spool response time, and hydraulic seals—should not be attributed to this extension board.

VT-TSPD-1-1XV00-R900208591
Major Features and Advantages
Extension-board configuration
is identified as an extension board used with digital valve amplifier equipment. Its function should be understood in the context of the complete amplifier assembly rather than as an independent hydraulic control device.
Defined material-number identification
The Bosch Rexroth material number provides a useful procurement reference. Matching is an important first step, but the printed model designation and revision markings should also be checked.
Stand-off mounting arrangement
Product records describe the board as a stand-off-mounted component. During inspection, check mounting posts, fasteners, board alignment, and any signs of mechanical stress around the mounting points.
Legacy equipment support
The part is listed as discontinued in secondary records. Maintaining an installed system may therefore require careful evaluation of available spare stock, repair feasibility, and the condition of any replacement board.
Reduced replacement uncertainty
Photographs of the original board, connector locations, and markings can help identify a correct replacement before shipment. This is particularly important where the original amplifier documentation or assembly history is incomplete.
Related Products
These are related Rexroth amplifier products or equipment references for identification purposes, not confirmed direct substitutes for .
- VT-TSPD-1-10/V0/0 — A separately listed VT-TSPD board designation; confirm material number and assembly compatibility.
- VT-SWKD-1-13C/V0/0 — Another Rexroth board designation appearing in product listings; not established as interchangeable.
- VT-VSPD-1-1X/V0/0 — Digital valve amplifier family; a different designation from VT-TSPD.
- VT-VSPD-1-2X/V0/0-0-1 — Later-series digital valve amplifier; electrical differences from the 1X version are documented.
- VT 3002-2X/48F — Card-holder designation appearing in an associated product listing; confirm the actual assembly configuration.
Frequently Asked Questions
Q1: What is Bosch Rexroth ?
It is identified as the VT-TSPD-1-1X/V0/0 extension board for a digital valve amplifier card.
Q2: Is a complete proportional valve?
No. The available identification records describe it as an electronic extension board, not a hydraulic valve.
Q3: Is VT-TSPD-1-1XV00 the same designation as VT-/V0/0?
The supplied string appears to omit separators from the catalog designation. Confirm the printed board marking and material number before treating them as identical.
Q4: Can be replaced by another Rexroth VT-series board?
Do not assume compatibility based on the VT prefix. Compare the material number, board revision, connector arrangement, mounting points, and amplifier documentation.
Q5: Can this board be hot-swapped?
Hot-swapping is not verified. Isolate the equipment and follow the manufacturer’s service procedure before removing or installing the board.
Q6: Does support firmware v3.1?
No verified firmware compatibility information is available for this extension board. Check the associated amplifier model and its documentation for software or configuration requirements.
Q7: What should be checked before purchasing a used ?
Request photographs of both sides of the PCB, the complete material-number label, revision markings, connectors, and mounting hardware. Ask for an inspection or test report identifying the amplifier assembly in which the board was evaluated.
Procurement and Replacement Checklist
Before ordering, verify:
- Material number:
- Full designation: VT-/V0/0
- PCB revision and additional identification markings
- Connector count, type, and pin arrangement
- Board dimensions and stand-off mounting positions
- Compatibility with the installed amplifier assembly
- Condition: new, unused surplus, refurbished, or repaired
- Inspection evidence and warranty terms
Procurement recommendation: Do not approve this part based solely on the abbreviated model string. The safest identification package is a photograph of the original board label, both PCB sides, and the amplifier assembly where it is installed.
