Flow Control
GF125C-204731
Brooks Instrument GF125C Mass Flow Controller
About this part
GF125C-204731 is a configured Brooks Instrument GF125C pressure transient insensitive metal-sealed thermal mass flow controller observed in Sonisys auction history and exact external listings as an N2 860 SCCM unit. Exact listing context also associates the part with GF125CXXC model wording, AMAT 0190-49894 lot context, and surface-mount fitting. Brooks GF125 documentation identifies the GF125 platform as a pressure transient insensitive MFC series for high-purity semiconductor and thin-film gas delivery, with documented 3 sccm to 30 slm N2-equivalent PTI flow ranges across GF125 standard configurations
Unit-specific configuration
Observed configuration
Historical listing records identify this part as N2 at 860 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 numberGF125C-204731
Product familyGF100 Series
Device typeMass Flow Controller
Observed gasN2
Observed full-scale range860 SCCM
Configuration statusVerify from unit label
Application classSemiconductor/high-purity gas delivery
CategoryFlow Control
Specifications
Identification
| Configured part number | GF125C-204731 |
| Device type | Pressure transient insensitive metal-sealed thermal mass flow controller |
| Series family | Brooks GF100 / GF120 / GF125 high-purity and ultra-high-purity digital mass flow controller family |
| GF125C context | GF125C-204731 is a configured GF125C/GF125-family unit identifier; stored and external listings also include GF125CXXC and AMAT 0190-49894 contexts |
Observed configuration
| Observed gas/range context | Stored auction titles and exact external listing evidence include N2 860 SCCM for GF125C-204731 |
| Observed fitting context | Exact external listing context identifies surface-mount fitting for at least one GF125C-204731 listing |
| Observed customer/OEM context | AMAT 0190-49894 appears in external surplus lot context for GF125C-204731 |
Configuration
| Configured-unit rule | Gas, full-scale range, SH configuration, communication interface, fitting package, valve state, calibration reference, and customer/OEM suffix details vary by full configured model code |
Applications
| Application domain | Semiconductor, thin-film, MOCVD, etch, deposition, and high-purity gas delivery applications requiring a metal-sealed flow path |
Performance
| Pressure transient insensitivity | GF125 PTI technology is documented as reducing the effect of upstream and downstream pressure fluctuations on gas flow |
| Documented PTI flow range | The GF125 product configuration sheet lists PTI flow ranges from 3 sccm to 30 slm N2 equivalent across SH40 through SH48 configurations |
| 860 SCCM configuration context | 860 SCCM is within the documented GF125 SH44 range of 281 to 860 sccm N2 equivalent |
| Typical setpoint response | GF125 documentation lists typical setpoint response of 300 milliseconds from command to desired flow output within the recommended operating range |
| Settling time by flow bin | GF125 documentation lists settling times of 300 msec for SH40-SH44, 400 msec for SH45-SH46, and 500 msec for SH47-SH48 |
| Standard accuracy | GF125 documentation lists standard accuracy as +/-0.35% full scale from 5-35% and +/-1.0% set point from 35-100% |
| Repeatability and reproducibility | GF125 documentation lists repeatability and reproducibility as +/-0.15% of set point |
Materials
| Wetted path standard | GF125 documentation lists a surface-passivated SEMI F20 compliant wetted flow path |
| Flow path surface finish | GF125 documentation lists 4 microinch Ra surface finish |
Pressure
| External leak integrity | GF125 documentation lists external leak integrity of 1 x 10^-11 atm cc/sec helium |
| Proof pressure | GF125 documentation lists 140 psia maximum proof pressure |
Controls
| Gas/range programmability | GF125 Multi-Gas/Multi-Range configurability supports gas and calibration-curve configuration; documented range scaling can change full-scale flow up to 3:1 where supported |
| Communication interfaces | GF125 documentation lists DeviceNet via 5-pin M8 connector and Analog/RS-485 via 9-pin D connector; exact interface for GF125C-204731 should be verified from the label because listing evidence varies |
| Diagnostic/service port | GF125 documentation lists an independent RS485 diagnostic port via 2.5 mm jack |
Electrical
| Power consumption | GF125 documentation lists 545 mA maximum at 11 VDC, 250 mA maximum at 24 VDC, and 6 W maximum at +/-15 VDC |
Operating environment
| Temperature range | GF125 documentation lists 10 C to 50 C operating temperature range |
Documentation Downloads
Local PDF copies
Brooks GF125 Mass Flow Controllers Data Sheet
Local PDF download
PDF805 KB
Brooks GF100 Series Analog and DeviceNet Data Sheet
Local PDF download
PDF4.2 MB
Brooks GF100 Series Installation and Operation Manual
Local PDF download
PDF6.1 MB
Brooks MultiFlo Configurator Quick Start Guide
Local PDF download
PDF3.2 MB
Part Photos
10 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerArchive records3Tracked historical listing records
Historical median price$1,208.24Based on archived listing records
Recorded price range$398.00 - $2,002.26Low to high recorded listing price
Local documents4PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $560.05 to $1,843.46. Based on 3 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- New Brooks GF125CXXC Mass Flow Controller MFC GF125C-204731 N2, 860 SCCM
- Brooks Instrument GF125C-204731 Mass Flow Controller MFC 860 SCCM N2 New
- Brooks Instrument GF125C-204731 Mass Flow Controller MFC Lot of 2 New
Archived listings
Other Part Numbers & Aliases
GF125C-204731Brooks GF125C-204731Brooks Instrument GF125C-204731Brooks Instruments GF125C-204731