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RS3112-1.25XSF3

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by Ray

Jiangsu RUNIC Tech Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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RS3112-1.25XSF3

Jiangsu RUNIC Tech · Voltage Reference · SOT-23

RS3112-1.25XSF3 from Jiangsu RUNIC Tech, 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 VIN power_in Input supply voltage. Recommended range VOUT+0.3 V to 5.5 V (min 2.45 V for the 1.25 V option). Absolute max 5.5 V. Bypass with 1 uF to 10 uF to GND.
2 OUT output Reference output voltage (1.25 V nominal for RS3112-1.25XSF3). Sinks or sources up to ±10 mA (30 mA short-circuit). Capable of driving 1 uF to 50 uF capacitive loads; 200 us settling to 0.1% with CL=1 uF.
3 GND power_in Ground reference. All voltages are referenced to this pin.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • RS3112-1.25XSF3
  • RS3112-1.25XSF3XK

CAD (KiCad official)

  • Symbol: RS3112-1.25XSF3
  • 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: Jiangsu RUNIC Tech datasheet (18 pp, sha256 fac1883cc990e756, 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