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SGAS701

Obsolete

Trace Hydrogen Gas Sensor

Overview

The SGAS701 is a solid-state chemiresistor sensor designed to detect hydrogen in air. The sensor uses an integrated heater with highly sensitive MOx material tailored for detection of hydrogen.

SGAS701 Product Photo (w/ Cap and Capless)
SGAS701 Product Photo (w/ Cap and Capless)
  • High sensitivity to low hydrogen concentrations (10 to 1000 ppm)
  • Fast response time (15 seconds at 100 ppm)
  • Environmental temperature range of -20°C to 50°C
  • Environmental humidity range of 0% to 90% RH, non‑condensing
  • Low dependence on flow rate

Documentation

Featured Documentation
Type Title Date
Datasheet
SGAS701 Datasheet
PDF 823 KB
End Of Life Notice
PLC# : 230006 - End-of-Life (EOL) process on select part numbers
PDF 1.07 MB
Application Note
AN-989 Analog Front-End Reference Design for SGAS Sensors
PDF 132 KB
Application Note
AN-992 - Digital Interface for SGAS7xx Sensors
PDF 429 KB
Application Note
AN-988 Resistance Measuring Circuits for SGAS Sensors
PDF 581 KB
5 items

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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  1. SGAS701 footprint

    In the datasheet for the sensor there is an outline drawing but no footprint information. Are there simply 4 pin in a square pattern at 5,08mm pitch (like the classic TO-39) or is it different? Also, figure 2 with the pin assigment is seen from above, right?

    Jul 1, 2022