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ME431ATG

Public Made by Adom

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MICRONE Voltage References, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ME431ATG

MICRONE · Voltage References · TO-92-3

ME431ATG from MICRONE, in a TO-92-3. 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 REF input The REF pin is the reference input, which the device holds at VREF of 2.5 V typical with reference current IREF of 3 μA typical.
2 ANODE power_in The ANODE pin is the common terminal of the shunt regulator and is connected to the lowest potential of the circuit.
3 CATHODE passive The CATHODE pin sinks cathode current from 1.0 mA to 100 mA with cathode voltage from VREF up to 36 V.

Key specifications

Parameter Value
Manufacturer MICRONE
Package TO-92-3
Category Power Management ICs
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
Reference voltage (0.4% grade) VREF 2.49 2.5 2.51 V VKA=VREF, IKA=10mA 3
Reference voltage (1.0% grade) VREF 2.475 2.5 2.525 V VKA=VREF, IKA=10mA 3
Deviation of reference voltage over-temperature (0 to 70℃) ΔVREF 3 10 mV VKA=VREF, IKA=10mA, 0 to 70℃ 3
Deviation of reference voltage over-temperature (-40 to 150℃) ΔVREF 3 15 mV VKA=VREF, IKA=10mA, -40 to 150℃ 3
Dynamic impedance KA / Z / 0.15 0.5 Ω VKA=VREF, IKA=1 to 100mA, f≤1.0KHz 3
Minimum cathode current for regulation IKA (MIN) 0.4 1 mA VKA=VREF 3
Ratio of change in reference voltage to change in cathode voltage (10V to VREF) ΔVREF/ΔVKA -0.8 -2.5 mV/V IKA=10mA, ΔVKA=10V to VREF 3
Ratio of change in reference voltage to change in cathode voltage (36V to 10V) ΔVREF/ΔVKA -0.6 -1.5 mV/V IKA=10mA, ΔVKA=36V to 10V 3
Reference current IREF 0.7 3 μA IKA=10mA, R1=10KΩ, R2=∝ 3
Deviation of reference current over full temperature range ΔIREF 0.1 1.2 μA IKA=10mA, R1=10KΩ, R2=∝, TA=40 to 150℃ 3
Off-state cathode current IKA (OFF) 0.03 0.3 μA VKA=36V, VREF=0 3
Cathode voltage VKA 36 V Minimum is VREF 3
Cathode current IKA 1 100 mA 3
Operating ambient temperature range TA -40 125 ℃ 3
Cathode voltage VKA 40 V 2
Cathode current range (continuous) IKA -100 130 mA continuous 2
Reference input current range IREF 10 mA 2
Power dissipation PD 770 mW TO-92 package 2
Junction temperature TJ 160 ℃ 2
Storage temperature range TSTG -65 150 ℃ 2
Package thermal impedance θJA 150 ℃/W TO-92 package 2

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
housing ppa body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Nanjing Micro 11

CAD (KiCad official)

  • Symbol: ME431ATG
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: me431atg-etched.step / me431atg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); me431atg.step / me431atg.glb are the bare package body.

Provenance

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

  • Datasheet: MICRONE datasheet (11 pp, sha256 30305689f87e8f4e, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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