GF125C-105871 is a configured Brooks Instrument GF125 Series metal-sealed thermal mass flow controller observed in Sonisys auction records and external surplus listings with GF125CXXC, AMAT 0190-49895 / 0190-49895-02, DeviceNet, and surface-mount fitting context. Stored listing evidence includes nitrogen, argon, and silane-related configured-unit wording, so gas and range must be verified from the physical unit label. Brooks GF100-family documentation covers GF125 and related GF-series models as high-purity and ultra-high-purity thermal mass flow controllers and meters for semiconductor, MOCVD, and other gas flow control applications
Configurations vary. Verify the exact unit before choosing a replacement.
Application classSemiconductor/high-purity gas delivery
CategoryFlow Control
Specifications
Identification
Part identifier
GF125C-105871
Device type
Metal-sealed thermal mass flow controller
Manufacturer family
Brooks Instrument GF125 Series within the GF100-family documentation set
Related model-family coverage
GF100 / GF101 / GF120 / GF120XSD / GF120XSL / GF121 / GF125 / GF126 metal-sealed mass flow controller and meter family
Observed model-code wording
GF125CXXC appears in stored and external listing descriptions for this configured part
Observed part markings
Customer/OEM part-number context
Stored and external listings associate GF125C-105871 with AMAT / Applied Materials part number 0190-49895 or 0190-49895-02
Applications
Application domain
Semiconductor, MOCVD, thin-film, and high-purity gas flow control
Flow-path context
GF100-family devices are designed for applications requiring a high-purity all-metal flow path
Flow
Observed stored-auction gases
Nitrogen / N2, argon / Ar, and silane / SiH4-related listing text appear in the archive evidence
Observed argon ranges
Stored and external listing evidence includes Ar 2000 SCCM and Ar 3000 SCCM variants
Observed silane-related range
Stored and external listing text includes SiH4 650 SCCM-style wording
Gas/range programmability
MultiFlo gas and range programmability is supported on applicable GF100-family configurations
Performance
Flow accuracy
GF100 analog and DeviceNet documentation lists +/-1% of set point from 35% to 100% full scale and +/-0.35% full scale from 2% to 35% full scale based on factory N2 calibration
Settling time
Normally closed valve response ranges from 300 ms to less than 700 ms over listed GF100 / GF125 flow bins
Pressure transient insensitivity
GF100-family documentation describes pressure transient insensitivity for more stable mass flow delivery in semiconductor gas systems
Materials
Wetted path standard
SEMI F20 HP compliant wetted materials
Sensor context
GF100-family documentation describes a corrosion-resistant Hastelloy sensor for long-term sensor stability
Gas, range, calibration basis, communication interface, valve state, fitting package, seal package, surface finish, connector style, and process options vary by configured model code and must be read from the unit label
Documents
Hosted official documentation
Sonisys hosts local copies of Brooks GF100-family data, installation, and MultiFlo documentation for reference
