Yl105 Datasheet < COMPLETE >

| Sensor | Type | Key Difference | |--------|------|----------------| | A3144 | Unipolar Hall | Very common, similar to YL105’s IC | | SS495A | Linear Hall | Analog output, measures field strength | | US5881 | Unipolar Hall | Lower power consumption | | KY-024 | Module with analog output | Includes both DO and AO | | TLE4905 | Unipolar Hall | Higher temperature range |

The 49E sensor is reasonably linear from -500G to +500G. However, the typical YL-105 datasheet glosses over the fact that near saturation (±1000G), linearity drops to ±5-10%. If you need high precision, you'll need to calibrate each unit individually. yl105 datasheet

| Parameter | Min | Typ | Max | Unit | |-----------|-----|-----|-----|------| | Supply Current | 3 | 5 | 10 | mA | | Output Low Voltage | – | 0.2 | 0.4 | V | | Output Leakage (High) | – | 0.1 | 10 | µA | | Rise Time | – | 0.5 | – | µs | | Fall Time | – | 0.5 | – | µs | | Sensor | Type | Key Difference |

The relationship between the sensor output and water quality is non-linear but predictable. | Parameter | Min | Typ | Max

6-pin male header for connecting to a microcontroller (VCC, GND, and the SPI lines). Instructables Typical Pinout (Microcontroller Side)

| Parameter | Value | |-----------|-------| | Operate Point (Bop) | 10–30 mT (South pole facing marked side) | | Release Point (Brp) | 2–15 mT | | Hysteresis | 5–12 mT |