The Texas Instruments DRV5021A1QDBZT is a unipolar Hall-effect switch in a SOT-23-3 surface-mount package. It switches when a south pole of sufficient strength is present, with a typical operate point of 4.4 mT and a release point of 0.4 mT — the hysteresis keeps the output clean in a vibrating assembly. Runs on a 2.5 V supply rail and draws 2.8 mA typical, with an open-drain output rated for 30 mA continuous.
DRV5021A1QDBZT TI Hall Switch, 2.5V, SOT-23-3
MPNDRV5021A1QDBZT
Active
Texas Instruments DRV5021A1QDBZT unipolar Hall-effect switch, 2.5 V supply, open-drain output, SOT-23-3, 4.4 mT trip / 0.4 mT release, -40°C to 125°C.
$0.37Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Operating temperature high | -40°C to 125°C(TA) |
| Feature_list | Temperature Compensated |
| Package_type | Tape & Reel (TR); Cut Tape (CT) |
| Polarization | South Pole |
| Output signal | Open Drain |
| Test condition | -40°C to 125°C |
| Status | Active |
| Timing_function | Unipolar Switch |
| Supply voltage | 2.5 |
| Switching current | 0.0028 |
| Output current max | 0.03 |
| Sensing distance max | 4.4mT Trip, 0.4mT Release |
Product details
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