CONNTEK KTM1331MD-ST3

KTM1331 is a digital latch magnetic switch integrating tunnel magnetoresistance (TMR) technology with CMOS process, designed for industrial and consumer switching applications. The device incorporates a TMR bridge, a voltage regulator operating from 1.8V to 5.5V, a digital logic control block, a threshold adjustment block, a Schmitt trigger, and a push-pull output. When the magnetic flux density parallel to the branded surface of the device exceeds the operate point, the output turns on; when it falls below the release point, the output turns off. The device operates in latch mode. The KTM1331 series offers multiple package options: SOT-23-3L for SMT and TO-92S flat package for through-hole mounting. All packages are RoHS compliant.

• TMR+CMOS monolithic structure
• Low power consumption
• 50Hz version: 160nA@3.0V (typical)
• 1.6KHz version: 600nA@3.0V (typical)
• Continuous version: 1.9uA@3.0V (typical)
• Supply voltage: 1.8V ~ 5.5V
• High magnetic sensitivity
• BOP = 45Gs, BRP = -45Gs
• BOP = 30Gs, BRP = -30Gs
• BOP = 17Gs, BRP = -17Gs
• BOP = 9Gs, BRP = -9Gs
• BOP = 5Gs, BRP = -5Gs
• Latching TMR switch
• Push-pull output mode
• Package: SOT-23-3L (MSL1), TO-92S
• Operating temperature: -40℃ ~ 125℃
• High ESD rating: HBM 8KV
• RoHS compliant

• Water, electricity, and gas meters
• Door, cover, and tray position switches
• Level, proximity, and position switches
• Speed detection