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Two-wire (current output), high-voltage (up to 38V), high-precision switch

US ECCN: EAR99 US/Local Export Classification Number


Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-260C-168 HR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
SOT-23 (DBZ) | 3 3,000 | LARGE T&R -40 to 125
Package | Pins SOT-23 (DBZ) | 3
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the TMAG5124

  • Hall effect switch with 2-wire interface
  • Low-level current output options:
    • TMAG5124A/B/C/D: 3.5 mA
    • TMAG5124E/F/G/H: 6 mA
  • Magnetic sensitivity:
    • TMAG5124A/E: 4 mT (typical)
    • TMAG5124B/F: 6 mT (typical)
    • TMAG5124C/G: 10 mT (typical)
    • TMAG5124D/H: 15 mT (typical)
  • Fast sensing bandwidth: 40 kHz
  • Supports wide voltage range
    • Operating VCC range: 2.5 V to 38 V
    • No external regulator required
  • Wide operating temperature range
    • Ambient operating temperature range: –40 °C to +125 °C
  • Protection features:
    • Supports load dump up to 40 V
    • Reverse polarity protection
  • SOT-23 package option

Description for the TMAG5124

The TMAG5124 device is a high-precision Hall effect sensor that offers a 2-wire interface designed for industrial designs.

The TMAG5124 integrates a current source that switches between two levels depending on the value of the magnetic field applied to the part. While the high value is fixed, the low value can be selected from two ranges. This type of interface enables robust communication between sensor and controller, allow long distance transmissions, helps detect disconnections, and limits the number of wires to two.

The device is available in a 3-pin SOT-23 package. While 3 pins are available on the package, the device only requires the VCC and GND pin to operate. The current can be measured from either of those 2 pins, creating either a high-side or low-side configuration.

Different product variants enable selection of different levels of magnetic sensitivity to match application specific requirements.

The wide operating voltage range and reverse polarity protection of the TMAG5124 is designed for a variety of industrial applications.




Qty Price (USD)
1-99 0.778
100-249 0.599
250-999 0.441
1,000+ 0.315