AMAT 0190-37519 MKS CDN491R Analog I/O PCB

Description

Product Introduction

Applied Materials 0190-37519 is identified by multiple semiconductor-equipment parts sources as an MKS CDN491R Analog I/O PCB, with the associated MKS identifier AS01491-AB. A specialist repair listing explicitly maps the AMAT number to “CDN491R BOARD, MKS AS01491-AB,” while SemiStar lists AMAT CDN491R, MKS AS01491-AB-1, 0190-37519 REV 04.

This makes the CDN491R identification considerably better supported than several generic online descriptions that label 0190-37519 as a servo-drive interface, RF interface, or DC power supply. Those descriptions conflict with the direct board-level identification and should not be copied into a technical datasheet without further verification.

For maintenance and procurement purposes, the correct approach is to treat 0190-37519 / CDN491R / AS01491-AB as the primary identification chain and then verify the physical PCB revision.

 

Identification Cross-Reference

The following identifiers are particularly useful when sourcing this board:

• AMAT P/N: 0190-37519
• MKS board: CDN491R
• MKS P/N: AS01491-AB
• Related listing: AS01491-AB-1
• Example revision: REV 04

The AMAT repair listing directly states MKS AS01491-AB, 0190-37519, while another inventory source lists , MKS -1, 0190-37519 REV 04.

 

Technical Specifications

Specification	Verified Information
AMAT Part Number	0190-37519
MKS Model
MKS Part Number
Board Function	Analog I/O PCB
Board Manufacturer	MKS Instruments
OEM Equipment Brand	Applied Materials
Example Revision	REV 04 reported in secondary inventory
Board Condition Examples	Pre-owned, parts, refurbished/repair-market
Reported Weight	Approximately 0.2 kg
Installation Environment	Applied Materials semiconductor equipment
Exact Channel Count	Not reliably verified
Exact Input/Output Ranges	Not reliably verified
Exact Supply Voltage	Not reliably verified

Specification Integrity Warning

I would not publish a channel count, voltage range, current range, ADC/DAC resolution, communication protocol, connector pinout, or power consumption for 0190-37519 based on current reseller pages.

Several websites publish highly specific values, but the descriptions contradict each other. For example, one source calls it a multi-axis motion-control module, another calls it an RF interface, and another calls it a DC power supply.

The board-level / identification, by contrast, appears repeatedly and is therefore the defensible specification.

 

Functional Role

The available evidence categorizes CDN491R as an Analog I/O PCB used in Applied Materials equipment. A semiconductor-equipment parts catalog specifically lists 0190-37519 MKS CDN491R Analog IO PCB, alongside other MKS CDN-series I/O boards.

At the equipment level, an analog I/O board can sit between process instrumentation and the equipment control architecture.

Depending on the specific AMAT tool configuration, the board may participate in acquisition or distribution of analog process signals. However, the exact signal assignment must be established from the equipment documentation or the installed board configuration rather than assumed from the part number alone.

This distinction matters when troubleshooting. A board identified simply as an “I/O card” may be responsible for several process signals, and a single channel failure can produce an equipment alarm that initially appears unrelated to the electronics.

Field Troubleshooting

1. Establish Whether the Fault Is Local

Before replacing the 0190-37519, determine whether the problem affects:

• One analog channel
• Several channels
• The entire board
• Multiple boards in the same subsystem
• The upstream controller

If several unrelated signals fail simultaneously, investigate the board, rack/backplane, power distribution, or communication path.

2. Compare the Signal at the Source and Board

For an analog measurement problem, compare the signal upstream of the board with the value recognized by the equipment controller.

This helps separate:

Process sensor problem → wiring problem → I/O channel problem → controller/software problem.

Replacing the PCB before making this distinction can create unnecessary downtime.

3. Inspect Connectors

Check for:

• Loose connectors
• Bent pins
• Oxidation
• Contamination
• Damaged cable assemblies
• Intermittent contacts

In legacy semiconductor equipment, connector and cable faults are particularly easy to mistake for PCB failures.

4. Compare Against a Known-Good Spare

If a validated spare is available, a controlled A/B substitution can be useful.

Before substitution, record:

• Installed board revision
• Cable positions
• Connector orientation
• Equipment alarms
• Measured signal values
• Configuration information

This creates a baseline before disturbing the system.

 

Incoming Inspection and QA SOP

For an incoming 0190-37519, use the following inspection checklist:

Inspection Item	Acceptance Criteria
AMAT P/N	Clearly identified as 0190-37519
MKS model
MKS P/N	AS01491-AB or documented approved variant
Revision	Recorded and compared with installed unit
PCB condition	No cracks, burns, corrosion, or missing components
Connectors	No bent or damaged contacts
Component condition	No obvious overheating or physical damage
ESD packaging	Proper ESD protection
Functional test	Preferably performed in compatible AMAT equipment
Signal test	Required channels verified where test capability exists
Condition classification	New Surplus / Used Tested / Refurbished / Untested
Warranty	Written terms confirmed

A supplier describing a board as “parts” does not mean it is a production-ready spare. J316Gallery currently has listings for 0190-37519 in parts condition and explicitly states that such units are untested, sold as-is, and without warranty.

 

⚠️ Veteran’s Tech Trap Guide

Trap 1 — Trusting the First Search Result

The same AMAT number is currently associated online with several incompatible descriptions:

• Servo/motion-control module
• RF interface module
• DC power supply
• Chamber control PCB
• CDN491R analog I/O PCB

That is a major procurement warning.

The / identification has the strongest direct board-level evidence.

Trap 2 — Assuming All CDN491R Boards Are Interchangeable

Do not stop at “CDN491R.”

Compare:

AMAT P/N → MKS P/N → board revision → installed tool → equipment configuration.

SemiStar, for example, records a unit as -1 / REV 04, showing that revision-level information exists within the field population.

Trap 3 — Publishing Unverified Electrical Specifications

Do not copy claims such as:

• ±10 V analog output
• 24 VDC I/O
• specific ADC resolution
• specific channel count
• specific power rails

unless they are confirmed from the physical board or an authoritative technical document.

Trap 4 — Calling an Untested Board “Tested”

A board that passes visual inspection is not a tested board.

For critical AMAT inventory, functional testing under a compatible equipment configuration is substantially more useful than a simple power-on check.

 

Spare-Inventory Strategy

If 0190-37519 is installed in a production-critical AMAT tool, classify it as a configuration-specific electronics spare.

Recommended inventory fields include:

• AMAT P/N
• MKS P/N
• CDN model
• PCB revision
• Serial number
• Compatible tool/platform
• Functional-test date
• Test method
• Condition
• Warranty expiration
• Storage location

For a single critical tool, maintaining at least one validated spare is often more defensible than relying on an untested board that can only be qualified after a production failure.

For multiple tools, do not pool these boards until revision and configuration compatibility have been confirmed.

 

New Surplus vs. Used vs. Refurbished

New Surplus

Look for:

• Correct AMAT label
• Correct MKS identifier
• Matching revision
• Original or suitable ESD packaging
• No evidence of prior installation

Used Tested

A tested used board can be a practical legacy-equipment spare.

Ask for the actual test scope rather than accepting “tested” as a generic condition.

Refurbished

Determine whether refurbishment included:

• Component replacement
• Connector repair
• Solder rework
• Calibration
• Functional testing
• Burn-in

Untested / Parts

Treat these as repair candidates.

A current J316Gallery listing explicitly identifies a 0190-37519 unit as components missing/damaged, while another listing describes the board as PCB damaged.

 

Frequently Asked Questions

What is AMAT 0190-37519?

The strongest available identification is MKS CDN491R Analog I/O PCB, AS01491-AB, used as an Applied Materials equipment board.

Is 0190-37519 a servo drive?

Available evidence does not support identifying it as a generic servo drive. One reseller describes it that way, but multiple board-level sources identify it as a CDN491R analog I/O PCB.

What is the MKS part number?

The primary MKS identifier is . Some inventory records show .

What is the CDN491R?

CDN491R is the MKS board designation associated with AMAT 0190-37519. It is listed as an Analog I/O PCB in semiconductor-equipment inventories.

Can I use any 0190-37519 board as a replacement?

No. Verify the MKS identifier, revision, physical configuration, and AMAT equipment compatibility before installation.

Is New Surplus 0190-37519 preferable?

If authentic and correctly matched, New Surplus can be an attractive option for legacy equipment. However, a tested used unit with documented functional verification may be preferable to an untested board.

Does every supplier provide a warranty?

No. Warranty depends on condition and supplier. Some current listings explicitly sell 0190-37519 boards as untested, as-is, and without warranty.

 

Bottom Line

AMAT 0190-37519 is best identified as an MKS CDN491R Analog I/O PCB, associated with MKS P/N AS01491-AB. This identification is supported by multiple independent semiconductor-equipment sources, including direct board listings and inventory records.

The exact electrical specifications remain configuration-dependent or insufficiently documented in reliable public sources. For procurement, the safest identification chain is:

AMAT 0190-37519 → MKS CDN491R → AS01491-AB → verify PCB revision.

Do not substitute the conflicting servo, RF, or power-supply specifications currently appearing on some reseller pages without physical-unit or OEM documentation.