component
LR431APHLT1G
Public Made by Adomby adom
LRC Voltage Reference, SOT-23. 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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README
markdownLR431APHLT1G
LRC · Voltage Reference · SOT-23
LR431APHLT1G from LRC, in a SOT-23. 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 | Reference input of the shunt regulator, which regulates to Vref of about 2.495 V (2.483 V to 2.507 V over 0 °C to 70 °C for the ±0.5% grade). |
| 2 | CATHODE | passive | Cathode (K) is the programmable output of the shunt regulator; its current is limited by the cathode current range given in the absolute maximum ratings. |
| 3 | ANODE | passive | Anode (A) is the common return terminal of the shunt regulator, through which the cathode current flows. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| 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 input voltage | VREF | 2.483 | 2.495 | 2.507 | V | VKA=VREF, IKA=1mA (as extracted); over ambient temperature range 0°C≤Ta≤70°C | 2 |
| Reference voltage tolerance (LR431A grade) | -0.5 | 0.5 | % | 2 |
CAD (KiCad official)
- Symbol:
LR431APHLT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lr431aphlt1g-etched.step/lr431aphlt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lr431aphlt1g.step/lr431aphlt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
6d46db76c927c0ff, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).