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MT9103A

Public Made by Adom

by adom

Magn Tek Linear Hall Sensors, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Contents

README

markdown

MT9103A

Magn Tek · Linear Hall Sensors · TO-92S

MT9103A from Magn Tek, in a TO-92S. 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 VCC power_in Power supply input operating from 3.0V to 5.5V (absolute maximum 30V).
2 GND power_in Ground reference pin.
3 OUT output Ratiometric analog output that sits at 1/2 VCC with no field, is linear with flux density, and is rated for up to ±1.5mA with a load of at least 4.7kΩ.

Key specifications

Parameter Value
Manufacturer Magn Tek
Package TO-92S
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 VCC 3 5.5 V 5
Supply Current (VCC=5V) ICC 6.7 8.6 mA VCC=5V; B=0 5
Supply Current (VCC=3.3V) ICC 6 7 mA VCC=3.3V; B=0 5
Power on Time TPO 30 us dVCC/dt≥5V/us 5
Sink Current ISINK -1.5 mA B=0; VOUT=VCC 5
Source Current ISOURCE 1.5 mA B=0; VOUT=0 5
Bandwidth BW 20 30 KHz 5
Noise Density IND 1.9 2.6 mG/√Hz Input-referenced noise density; TA=25°C, B=0, CL=1nF 5
Output Resistance ROUT 2 4 Ω IOUT<=±1.5mA; VOUT=2.5V 5
Output Loading Resistance RL 4.7 KΩ IOUT<=1.5mA; Output to GND or to VCC 5
Output Loading Capacitance CL 10 nF IOUT<=±1.5mA; Output to GND 5
Sensitivity (MT9103, 5V) SNST 3.162 3.4 3.638 mV/Gs TA=25℃; Vcc=5V 6
Sensitivity (MT9103, 3.3V) SNST 2 2.15 2.3 mV/Gs TA=25℃; Vcc=3.3V 6
Linearity LIN -1.5 1.5 % 6
Quiescent Voltage (VCC=5V) VOQ 2.475 2.5 2.525 V VCC=5V; B=0; TA=25℃ 6
Quiescent Voltage (VCC=3.3V) VOQ 1.63 1.65 1.67 V VCC=3.3V; B=0; TA=25℃ 6
Ratiometry, VOQ VOQ_rat -1.5 1.5 % 6
Ratiometry, SNST SNST_rat -2.5 2.5 % 6
VOQ Variation Over Temperature VOQ (T) -1.5 1.5 % 6
Temperature coefficient of Sensitivity SNST (TC) -800 0 800 ppm/℃ 6
Supply Voltage VCC 30 V 4
Reverse Battery Voltage VRCC -0.2 V 4
Output Voltage VOUT 30 V 4
Continuous Output Current IOUT -5 5 mA 4
Operating Ambient Temperature TA -40 150 ℃ 4
Storage Temperature TS -40 150 ℃ 4
Junction Temperature TJ 165 ℃ 4
Magnetic Field Range (VCC=5V) B 650 Gs TA=25℃; Vcc=5V 6
Magnetic Field Range (VCC=3.3V) B 630 Gs TA=25℃; Vcc=3.3V 6
Thermal Resistance, Flat TO-92 RTH 230 ℃/W Flat TO-92 5

CAD (KiCad official)

  • Symbol: MT9103A
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92S (KiCad packages3D, STEP)
  • 3D model files: mt9103a-etched.step / mt9103a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mt9103a.step / mt9103a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Magn Tek datasheet (12 pp, sha256 a002ba99c385ccb1, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF