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SGM811-SXKA4
Public Made by Adomby adom
SGMICRO Supervisor And Reset ICs, SOT-143. 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
markdownSGM811-SXKA4
SGMICRO · Supervisor And Reset ICs · SOT-143
SGM811-SXKA4 from SGMICRO, in a SOT-143. 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 | GND | power_in | Ground reference for the supervisor. |
| 2 | RESET | output | Active-low logic output (SGM811) that remains low while VCC is below the reset threshold or while MR is low, and stays low for at least 150 ms after VCC rises above the reset threshold; it remains valid (low) down to VCC = 1 V. |
| 3 | MR | input | Active-low manual reset input with debounce that ignores pulses of 100 ns or less (typical) and accepts pulses longer than 10 μs; leave floating when not used. |
| 4 | VCC | power_in | Power supply voltage that is monitored; the device operates from 1.2 V to 5.5 V over -40 ℃ to +125 ℃ (absolute maximum -0.3 V to 6 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | SOT-143 |
| Category | Power Management (PMIC) |
| Pins | 4 |
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), TA = 0℃ to +70℃ | 1 | 5.5 | V | TA = 0℃ to +70℃ | 3 | ||
| Supply voltage (VCC), TA = -40℃ to +125℃ | 1.2 | 5.5 | V | TA = -40℃ to +125℃ | 3 | ||
| Supply current, SGM81_R/S/T/Z/X | 13 | 25 | μA | VCC < 3.6V, SGM81_R/S/T/Z/X, TA = +25℃ | 3 | ||
| Supply current, SGM81_R/S/T/Z/X | 45 | μA | VCC < 3.6V, SGM81_R/S/T/Z/X, TA = -40℃ to +125℃ | 3 | |||
| Reset voltage threshold, SGM81_S | 2.857 | 2.93 | 3.003 | V | SGM81_S, TA = +25℃ | 3 | |
| Reset voltage threshold, SGM81_S | 2.78 | 3.08 | V | SGM81_S, TA = -40℃ to +125℃ | 3 | ||
| Reset threshold temperature coefficient | 30 | ppm/°C | 3 | ||||
| VCC to RESET/RESET delay | 20 | μs | VCC = VTH to (VTH - 100mV) | 3 | |||
| Reset active timeout period | 150 | 240 | 560 | ms | TA = -40℃ to +85℃ | 3 | |
| Reset active timeout period | 100 | 840 | ms | TA = -40℃ to +125℃ | 3 | ||
| Minimum pulse width (manual reset) | 10 | μs | 3 | ||||
| Glitch immunity (manual reset) | 100 | ns | 3 | ||||
| RESET/RESET propagation delay | 0.5 | μs | 3 | ||||
| Pull-up resistance | 1 | MΩ | 3 | ||||
| RESET/RESET output voltage, low (SGM811R/S/T/Z/X) | 0.3 | V | VCC = VTH(MIN), ISINK = 1.2mA | 4 | |||
| RESET/RESET output voltage, low (SGM811R/S/T/Z/X/L/M/J) | 0.3 | V | VCC > 1.0V, ISINK = 50μA | 4 | |||
| Terminal voltage VCC (with respect to ground) | VCC | -0.3 | 6 | V | With respect to ground | 5 | |
| Input current, VCC, MR | 20 | mA | 5 | ||||
| Output current, RESET, RESET | 20 | mA | 5 | ||||
| Power dissipation, PD (SOT-143) | PD | 0.32 | W | TA = +25℃, SOT-143 | 5 | ||
| Operating temperature range | -40 | 125 | ℃ | 5 | |||
| Junction temperature | 150 | ℃ | 5 | ||||
| Storage temperature | -65 | 150 | ℃ | 5 | |||
| Lead temperature (soldering) | 260 | ℃ | Soldering, 10s | 5 | |||
| ESD susceptibility, MM | 400 | V | MM | 5 |
CAD (KiCad official)
- Symbol:
SGM811-SXKA4 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
sgm811-sxka4-etched.step/sgm811-sxka4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sgm811-sxka4.step/sgm811-sxka4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SGMICRO datasheet (12 pp, sha256
474c8a5e58193a41, 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).