component
MH248ESO
Public Made by Adomby adom
MST Magnesensor Tech MST Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownMH248ESO
MST Magnesensor Tech MST · Hall Switches · SOT-23-3L
MH248ESO from MST Magnesensor Tech MST, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Supply voltage pin, operating range 2.5 V to 3.5 V (absolute maximum 5 V); no reverse-voltage protection, so a 100 Ω series resistor is recommended. |
| 2 | OUT | output | Open-drain output that switches on when |
| 3 | GND | power_in | Ground reference pin for the supply and output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MST Magnesensor Tech MST |
| Package | SOT-23-3L |
| Category | Magnetic Sensors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.5 | 3.5 | V | Operating | 3 | |
| Supply Current Awake State | IDD | 2.5 | 4 | mA | Awake State | 3 | |
| Supply Current Sleep State | IDD | 8 | 12 | μA | Sleep State | 3 | |
| Supply Current Average | IDD | 10 | 16 | μA | Average | 3 | |
| Output Leakage Current | Ioff | 1 | uA | Output off | 3 | ||
| Output Low Voltage | Vsat | 0.3 | V | IOUT=1mA | 3 | ||
| Operate Point, S pole to branded side | BOPS | 6 | 60 | Gauss | S pole to branded side, B > BOP, Vout On | 3 | |
| Operate Point, N pole to branded side | BOPN | -60 | -6 | Gauss | N pole to branded side, B > BOP, Vout On | 3 | |
| Release Point, S pole to branded side | BRPS | 5 | 59 | Gauss | S pole to branded side, B < BRP, Vout Off | 3 | |
| Release Point, N pole to branded side | BRPN | -60 | -5 | Gauss | N pole to branded side, B < BRP, Vout Off | 3 | |
| Awake mode time | Taw | 70 | uS | Operating | 3 | ||
| Sleep mode time | TSL | 70 | mS | Operating | 3 | ||
| Duty Cycle | D,C | 0.1 | % | 3 | |||
| Hysteresis | BHYS | 7 | Gauss | /BOPx - BRPx/ | 3 | ||
| Supply Voltage absolute maximum | VDD | 5 | V | 3 | |||
| Output Voltage absolute maximum | Vout | 5 | V | 3 | |||
| Reverse voltage (VDD) (VOUT) | -0.3 | V | 3 | ||||
| Output current | IOUT | 2 | mA | 3 | |||
| Operating temperature range | Ta | -40 | 85 | ℃ | 3 | ||
| Storage temperature range | Ts | -55 | 150 | ℃ | 3 | ||
| Maximum Junction Temperature | Tj | 150 | ℃ | 3 | |||
| Thermal resistance junction to ambient (SO) | θJA | 543 | ℃/W | SO package | 3 | ||
| Thermal resistance junction to case (SO) | θJC | 410 | ℃/W | SO package | 3 | ||
| Package Power Dissipation (SO) | PD | 230 | mW | SO package | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | UA:TO-92S,VK:TO-92S(4pin),VF:TO-92S(5pin),SO:SOT-23, SQ:QFN-3,ST:TSOT-23,SN:SOT-553,SF:SOT-89(5pin), | 2 |
CAD (KiCad official)
- Symbol:
MH248ESO - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
mh248eso-etched.step/mh248eso-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mh248eso.step/mh248eso.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MST Magnesensor Tech MST datasheet (6 pp, sha256
00c9d8ef70deb72a, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).