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R3111N302A-TR-FE

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by Ray

Ricoh Elec Devices Supervisor and Reset ICs, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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R3111N302A-TR-FE

Ricoh Elec Devices · Supervisor and Reset ICs · SOT-23

R3111N302A-TR-FE from Ricoh Elec Devices, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT output Nch open-drain detector output. Pulls low when VDD falls below -VDET (3.0 V typ.); requires an external pull-up resistor (e.g., 470 kΩ to VDD or system rail up to 12 V max). Output current capability up to 70 mA absolute max.
2 GND power_in Ground / VSS reference for the IC.
3 VDD power_in Supply voltage and monitored input. Operating range 0.7 V to 10.0 V (12 V absolute max). Detector threshold -VDET is measured on this pin; supply current typically 1.0 µA.

Key specifications

Parameter Value
Manufacturer Ricoh Elec Devices
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • R3111N302A-TR-FE
  • R3111N302A-TR-FEN30xA-TR-FE (Nxx2A output A)
  • R3111N302A-TR-FEN30xC-TR-FE (Nxx2C CMOS)
  • R3111N302A-TR-FENxx1A-TR-FE
  • R3111N302A-TR-FENxx1B-TR-FE
  • R3111N302A-TR-FENxx1C-TR-FE
  • R3111N302A-TR-FEHxx1A-T1-FE
  • R3111N302A-TR-FEHxx1C-T1-FE
  • R3111N302A-TR-FEExx1A-TZ-F
  • R3111N302A-TR-FEExx1C-TZ-F
  • R3111N302A-TR-FEQxx1A-TR-FE
  • R3111N302A-TR-FEQxx1B-TR-FE
  • R3111N302A-TR-FEQxx1C-TR-FE
  • R3111N302A-TR-FEQxx2A-TR-FE
  • R3111N302A-TR-FEQxx2B-TR-FE
  • R3111N302A-TR-FEQxx2C-TR-FE
  • R3111N302A-TR-FEDxx1A-TR-FE
  • R3111N302A-TR-FEDxx1B-TR-FE
  • R3111N302A-TR-FEDxx1C-TR-FE

CAD (KiCad official)

  • Symbol: R3111N302A-TR-FE
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Ricoh Elec Devices datasheet (43 pp, sha256 168b14150a956584, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF