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RS8901XF

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by Ray

Jiangsu RUNIC Tech Operational Amplifier, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmprs8901xf
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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

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RS8901XF

Jiangsu RUNIC Tech · Operational Amplifier · SOT-23-5

RS8901XF from Jiangsu RUNIC Tech, in a SOT-23-5. 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 Comparator push-pull output. Drives high to V+ or low to V- depending on the sign of (IN+ - IN-). Short-circuit sink ~42mA, source ~38mA at Vs=5V.
2 V- power_in Negative supply / ground reference. Typically connected to GND in single-supply operation. Supply span V+ to V- must be 1.4V to 5.5V.
3 +IN input Non-inverting comparator input. Rail-to-rail common-mode range from (V-)-0.1V to (V+)+0.1V. Input bias current ~1pA typ; diode-clamped to supplies (limit external current to <=10mA).
4 -IN input Inverting comparator input. Rail-to-rail common-mode range from (V-)-0.1V to (V+)+0.1V. Input bias current ~1pA typ; diode-clamped to supplies (limit external current to <=10mA).
5 V+ power_in Positive supply. Operating range 1.4V to 5.5V; absolute maximum V+ to V- is 7.0V. Recommended local bypass to V-.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT-23-5
Category Op-amp/Cmp
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • RS8901XF
  • RS8901XC5

CAD (KiCad official)

  • Symbol: RS8901XF
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
rs8901xf.step 85 KB You want the bare part, or you mark your own boards.
rs8901xf-etched.step 1.9 MB You want the part with RS8901XF already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 449 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (6 pp, sha256 26736b2bd3c6beef, 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