component
A1308LLHLX-05-T
Public Made by Adomby adom
Allegro MicroSystems, LLC Magnetic Sensors, SOT-23W. 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
markdownA1308LLHLX-05-T
Allegro MicroSystems, LLC · Magnetic Sensors · SOT-23W
A1308LLHLX-05-T from Allegro MicroSystems, LLC, in a SOT-23W. 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 | Input power supply; tie to GND with a bypass capacitor. |
| 2 | VOUT | output | Analog output signal, ratiometric to VCC and proportional to the applied magnetic field. |
| 3 | GND | power_in | Ground reference for the supply and output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Allegro MicroSystems, LLC |
| Package | SOT-23W |
| Category | 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 | 4.5 | 5 | 5.5 | V | 4 | |
| Undervoltage Threshold (power on) | VUVLOHI | 3 | V | L temp. option tested at TA = 25°C to 150°C (device powers on) | 4 | ||
| Undervoltage Threshold (power off) | VUVLOLO | 2.5 | V | L temp. option tested at TA = 25°C to 150°C (device powers off) | 4 | ||
| Supply Current | ICC | 9 | 11.5 | mA | No load on VOUT | 4 | |
| VCC Ramp Time | tVCC | 0.005 | 100 | ms | TA = 25°C | 4 | |
| VCC Off Level | VCCOFF | 0 | 0.55 | V | TA = 25°C | 4 | |
| Supply Zener Clamp Voltage | VZ | 6 | 7.3 | V | TA = 25°C, ICC = 14.5 mA | 4 | |
| Output Load Resistance | RL | 4.7 | kΩ | VOUT to GND | 4 | ||
| Output Load Capacitance | CL | 10 | nF | VOUT to GND | 4 | ||
| Output Voltage Clamp (high) | VCLPHIGH | 4.35 | 4.5 | 4.65 | V | TA = 25°C, RL=10kΩ (VOUT to GND) | 4 |
| Output Voltage Clamp (low) | VCLPLOW | 0.4 | 0.55 | 0.7 | V | TA = 25°C, RL=10kΩ (VOUT to VCC) | 4 |
| Quiescent Voltage Output | VOUT(Q) | 2.488 | 2.5 | 2.512 | V | TA = 25°C | 5 |
| Sensitivity Temperature Coefficient | TCSens | 0.08 | 0.12 | 0.16 | %/°C | Programmed at TA = 150°C (L temp. option), calculated relative to Sens at 25°C | 5 |
| Linearity Sensitivity Error | LinERR | -1.5 | 1.5 | % | 5 | ||
| Symmetry Sensitivity Error | SymERR | -1.5 | 1.5 | % | 5 | ||
| Ratiometry Quiescent Voltage Output Error | RatVOUT(Q) | -1.5 | 1.5 | % | Across supply voltage range (relative to VCC = 5 V) | 5 | |
| Ratiometry Sensitivity Error | RatSens | -1.5 | 1.5 | % | Across supply voltage range (relative to VCC = 5 V) | 5 | |
| Ratiometry Clamp Error | RatVOUTCLP | -1.5 | 1.5 | % | TA = 25°C, across supply voltage range (relative to VCC = 5 V) | 5 | |
| Typical Quiescent Voltage Output Drift Across Temperature Range (A1308LLHLX-05-T) | ΔVOUT(Q) | -15 | 0 | 15 | mV | TA = 150°C | 5 |
| Sensitivity Drift Due to Package Hysteresis | ΔSensPKG | -2 | 2 | % | TA = 25°C, after temperature cycling | 5 | |
| Forward Supply Voltage | VCC | 8 | V | 2 | |||
| Reverse Supply Voltage | VRCC | -0.1 | V | 2 | |||
| Forward Output Voltage | VOUT | 7 | V | 2 | |||
| Reverse Output Voltage | VROUT | -0.1 | V | 2 | |||
| Output Source Current | IOUT(SOURCE) | 2 | mA | VOUT to GND | 2 | ||
| Output Sink Current | IOUT(SINK) | 10 | mA | VCC to VOUT | 2 | ||
| Operating Ambient Temperature Range L | TA | -40 | 150 | °C | Range L (this part's L temperature option) | 2 | |
| Maximum Junction Temperature | TJ(max) | 165 | °C | 2 | |||
| Storage Temperature | Tstg | -65 | 170 | °C | 2 | ||
| Package Thermal Resistance (LH, 1-layer PCB) | RθJA | 228 | °C/W | Package LH, 1-layer PCB with copper limited to solder pads | 3 | ||
| Package Thermal Resistance (LH, 2-layer PCB) | RθJA | 110 | °C/W | Package LH, 2-layer PCB with 0.463 in.2 of copper area each side connected by thermal vias | 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 | lead (Pb) free, with 100% matte-tin leadframe plating. Linear Hall-Effect Sensor ICs with Analog Output | 2 |
CAD (KiCad official)
- Symbol:
A1308LLHLX-05-T - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23W (KiCad packages3D, STEP)
- 3D model files:
a1308llhlx-05-t-etched.step/a1308llhlx-05-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);a1308llhlx-05-t.step/a1308llhlx-05-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Allegro MicroSystems, LLC datasheet (12 pp, sha256
2be7d3212555cfb1, retrieved 2026-11-05, 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).