Flow Control

GF120XSD

Brooks GF-Series Mass Flow Controller

About this part

GF120XSD is a Brooks Instrument GF120 Safe Delivery System metal-sealed thermal mass flow controller identifier in the GF100/GF120/GF125 family. Official Brooks GF100 data-sheet material lists GF120XSD directly and places it in the greater-than-25 sccm to 1 slm nitrogen-equivalent full-scale flow range. Sonisys auction history shows observed GF120XSD configurations for SiCl4, PH3, and H2O service in 30, 50, 150, and 200 sccm listings; those are stored auction contexts, not universal model-wide settings

Unit-specific configuration
Observed configuration

Historical listing records identify this part as 200 SCCM. Exact gas, range, fittings, valve configuration, and communication interface must be verified from the physical unit label.

Configurations vary. Verify the exact unit before choosing a replacement.

Key Facts

ManufacturerBrooks Instrument
Part numberGF120XSD
Product familyGF100 Series
Device typeMass Flow Controller
Observed full-scale range200 SCCM
Configuration statusVerify from unit label
Application classSemiconductor/high-purity gas delivery
CategoryFlow Control

Specifications

Identification
Device typeMetal-sealed thermal mass flow controller
Series familyBrooks GF100 / GF120 / GF125 Series
GF120XSD family roleGF120 Safe Delivery System configuration within the GF-series data-sheet family
Flow
GF120XSD full-scale rangeGreater than 25 sccm to 1 slm nitrogen equivalent
Gas/range programmabilityMultiFlo gas and range programmability is supported on applicable configurations
Applications
Application domainSemiconductor, MOCVD, thin-film, and high-purity gas flow control
Performance
Flow accuracy+/-1% of set point from 35-100% and +/-0.35% full scale from 2-35%, based on factory N2 calibration
Repeatability and reproducibility+/-0.15% of set point from 5-100% and +/-0.015% full scale from 2-5%
Settling timeGF120XSD normally closed valve settling time is listed as less than 3 seconds
Control range2-100% for normally closed valve configurations
Pressure
GF120XSD maximum operating pressure100 psia maximum
GF120XSD proof/design/burst pressure140 psia proof pressure, 170 psia design pressure, and 500 psia burst pressure
Low vapor pressure gasesLow vapor pressure gas applications require inlet pressure above 100 Torr with vacuum on the outlet
Materials
Wetted path standardSEMI F20 HP compliant wetted materials
Wetted materials316L VIM/VAR, Hastelloy C-22, 316L stainless steel, 304 stainless steel, KM-45, and PCTFE on optional zero-leak-by valve configurations
Integrity
External leak integrity1 x 10^-10 atm cc/sec helium
Environmental
Operating temperature10 C to 50 C
Controls
Communication interfacesAnalog/RS-485, DeviceNet, or EtherCAT depending on configuration
Configuration
Configured-unit ruleGas, range, communication interface, valve state, fitting package, and process options vary by configured model code and should be verified from the physical unit label
Observed variants
Stored auction gas/range combinations200 SCCM (2), 150 SCCM (2), 50 SCCM (1), 30 SCCM (1)

Documentation Downloads

Local PDF copies

Part Photos

23 images

Historical archive images for identification, labels, connectors, and condition reference, not current inventory.

Historical Listings & Prices

Historical listing data, not a current offer
Archive records12Tracked historical listing records
Historical median price$249.99Based on archived listing records
Recorded price range$79.99 - $2,403.25Low to high recorded listing price
Local documents3PDF copies available from Sonisys
Recorded price context

The typical recorded price range is $113.96 to $2,199.73. Based on 12 archived listing records; not a current offer, appraisal, or confirmed sale price.

View archived listing titles
  • MFC BROOKS INSTRUMENTS GF SERIES THERMAL MASS FLOW 150 SCCM GF120XSD SiCL4
  • Brooks Instrument GF120XSD MFC Mass Flow Controller 50 SCCM PH3
  • Brooks Instrument GF120XSD Mass Flow Controller MFC SiCl4 200SCCM 0.2SLM
  • Brooks Instrument GF120XSD Mass Flow Controller MFC SiCl4 150SCCM .15SLM
  • Brooks Instrument GF120XSD Mass Flow Controller MFC SiCl4 200SCCM .20SLM
  • Brooks Instrument GFPROTO-543514 Mass Flow Controller MFC GF120XSD New Surplus

Archived listings

Other Part Numbers & Aliases

GF120XSDBrooks GF120XSDBrooks Instrument GF120XSDGF120XSD MFCGF120X-100385GFPROTO-543514GFPROTO-543865GFPROTO-543866