MKS PCA-28223 Pressure Controller | Replacement, Equivalent & Selection Guide
The MKS PCA-28223 (part numbers: 4022.436.8098.5 / 4022.437.0220, modules: UTOP1-020MX, UGRMEM-01SAKOE) is a precision pressure controller manufactured by MKS Instruments. This page provides full technical specifications, compatible replacement models, application guidance, and a structured selection guide for engineers and procurement teams sourcing original or equivalent units.
Technical Specifications
- Manufacturer: MKS Instruments
- Model / Part Number: PCA-28223
- Cross-Reference Part Numbers: 4022.436.8098.5 | 4022.437.0220
- Module Codes: UTOP1-020MX | UGRMEM-01SAKOE
- Product Type: Pressure Controller
- Series: PCA Series
- Weight: 2.6 kg
- Condition Available: New / Refurbished / Tested
- Origin: MKS Instruments (USA)
Compatible Replacement & Equivalent Models
If the MKS PCA-28223 is discontinued, out of stock, or outside budget, the following models may serve as functional equivalents depending on your system configuration. Always verify electrical and mechanical compatibility before substitution.
- MKS 250E – Pressure/Flow Controller, compatible with MKS 600-series transducers
- MKS 651C – Pressure Controller with RS-232/RS-485 interface
- MKS 252A – Exhaust Valve Controller, suitable for vacuum process control
- MKS 600 Series – Baratron-compatible pressure controllers
- Brooks Instrument 0254 – Third-party alternative for pressure regulation in semiconductor processes
Note: Replacement suitability depends on process pressure range, gas compatibility, and communication protocol. Contact Konmask for a verified cross-reference.
Why Choose the Original MKS PCA-28223
- Factory-calibrated for precise pressure regulation in demanding semiconductor and industrial vacuum processes
- Designed for seamless integration with MKS Baratron transducers and MKS valve assemblies
- Proven reliability in cleanroom and high-purity gas environments
- Full traceability with OEM part numbers 4022.436.8098.5 and 4022.437.0220
- Supported by MKS Instruments global service network
Typical Applications
- Semiconductor CVD / PVD / Etch process chambers
- Vacuum furnace pressure regulation
- Industrial gas delivery and pressure management systems
- Research & laboratory vacuum systems
- Flat panel display (FPD) manufacturing equipment
System Compatibility
- Compatible with MKS Baratron® capacitance manometers (627, 628, 631 series)
- Works with MKS throttle valves and exhaust valve assemblies
- Supports standard analog (0–10 V / 4–20 mA) and digital (RS-232, RS-485) interfaces
- Integrable with Siemens, Allen-Bradley, and other PLC/DCS platforms via signal conditioning
Selection Guide
Use the criteria below to confirm the PCA-28223 is the right choice for your application, or to identify the best alternative:
- Pressure Range: Confirm your process pressure range matches the PCA-28223 rated range
- Gas Compatibility: Verify wetted materials are compatible with your process gas
- Communication Protocol: Match RS-232 / RS-485 / analog I/O to your control system
- Power Supply: Confirm input voltage requirements (AC/DC)
- Mounting & Form Factor: Verify panel or rack-mount compatibility
- Certifications Required: CE, UL, or other regional compliance needs
Not sure which model fits? Contact our selection team with your process parameters for a free recommendation.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Functional testing performed prior to shipment
- Serialized inspection records available on request
- Packaging: anti-static, moisture-barrier, with foam protection
- Warranty: 90-day tested warranty on refurbished units; OEM warranty on new stock
How to Order
- Add the MKS PCA-28223 to your cart and proceed to checkout
- For bulk orders or custom configurations, email [email protected]
- Include your PO number, required quantity, and delivery timeline
- Our team will confirm availability and lead time within 1 business day
Replacement & Compatibility FAQ
Q: Can the MKS 651C replace the PCA-28223?
A: In many pressure control applications, yes — but verify the valve drive output and transducer input compatibility for your specific system.
Q: Is the 4022.436.8098.5 the same as 4022.437.0220?
A: These are related MKS internal part numbers for the PCA-28223 assembly. Contact us to confirm which revision applies to your equipment.
Q: Do you supply UTOP1-020MX and UGRMEM-01SAKOE modules separately?
A: Yes, sub-module availability varies by stock. Inquire directly for current inventory.
Q: What is the lead time for a new MKS PCA-28223?
A: Typically 2–8 weeks for new OEM stock; refurbished units may ship within 3–5 business days subject to availability.
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