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SGM811-SXKA4

Public Made by Adom

by adom

SGMICRO Supervisor And Reset ICs, SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SGM811-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm811-sxka4.step / sgm811-sxka4.glb are 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, 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