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RS8901XF

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Jiangsu RUNIC Tech Operational Amplifier, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs rs8901xf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers rs8901xf: viewers · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
page.json rs8901xf: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray 12d ago
README.md rs8901xf: specified limits as data (metadata.characteristics, 31 rows from the datasheet) · Ray 21d ago
rs8901xf-etched.fit.json rs8901xf: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
rs8901xf-etched.glb rs8901xf: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray 12d ago
rs8901xf-etched.step rs8901xf: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray 12d ago
rs8901xf.glb Publish 0.1.0 · Ray 2mo ago
rs8901xf.kicad_mod Publish 0.1.0 · Ray 2mo ago
rs8901xf.kicad_sym Publish 0.1.0 · Ray 2mo ago
rs8901xf.lbr Publish 0.1.0 · Ray 2mo ago
rs8901xf.step Publish 0.1.0 · Ray 2mo ago

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Vs Operating Voltage Range Vs 1.4 5.5 V 3
Input Offset Voltage Vos -3 1 3 mV VCM =Vs/2 3
Input Bias Current IB 1 10 pA 3
Common-Mode Voltage Range VCM -0.1 0.1 V TA = –40°C to 125°C; printed as (V-)-0.1 min and (V+)+0.1 max (rail-referenced) 3
Output Swing From Upper Rail VOH 70 75 mV Vs=1.4V,Io=0.1mA 3
Output Swing From Upper Rail VOH 140 170 mV Vs=5.0V,Io=2.5mA 3
Output Swing From Lower Rail VOL 35 40 mV Vs=1.4V,Io=-0.1mA 3
Output Swing From Lower Rail VOL 85 115 mV Vs=5.0V,Io=-2.5mA 3
Quiescent Current IQ 400 1500 nA 3
Input Terminals Voltage -0.5 0.5 V Printed as –0.5 to (V+) + 0.5V (rail-referenced) 2
Input Terminals Current -10 10 mA ±10mA 2
Storage Temperature -65 150 °C 2
Operating Temperature -40 125 °C 2
Junction Temperature 150 °C 2
Lead Temperature (Soldering) 260 °C 10s 2
ESD Susceptibility MM 400 V MM 2
Power-Supply Rejection Ratio PSRR 70 dB Vs=1.4V to 5.5V, VCM=(V)+0.5V 3
Input Offset Voltage Drift ΔVos/ΔT 2 µV/°C VCM =Vs/2, -40°C ≤ TA ≤125°C 3
Common-Mode Rejection Ratio CMRR 70 dB Vs=5.5V, VCM =-0.1 to 5.6V 3
Short Circuit Sink Current ISC 42 mA Vs=5.0V 3
Short Circuit Source Current ISC 38 mA Vs=5.0V 3
Propagation Delay High to Low TPHL 13 µs Vs = 5.0 V, Overdrive = 10 mV 3
Propagation Delay High to Low TPHL 9 µs Vs = 5.0 V, Overdrive = 100 mV 3
Propagation Delay High to Low TPHL 12 µs Vs = 2.5 V, Overdrive = 10 mV 3
Propagation Delay High to Low TPHL 8 µs Vs = 2.5 V, Overdrive = 100 mV 3
Propagation Delay Low to High TPLH 30 µs Vs = 5.0 V, Overdrive = 10 mV 3
Propagation Delay Low to High TPLH 40 µs Vs = 5.0 V, Overdrive = 100 mV 3
Propagation Delay Low to High TPLH 22 µs Vs = 2.5 V, Overdrive = 10 mV 3
Propagation Delay Low to High TPLH 35 µs Vs = 2.5 V, Overdrive = 100 mV 3
Rise Time TR 240 ns Overdrive = 100 mV 3
Fall Time TF 260 ns Overdrive = 100 mV 3

CAD (KiCad official)

  • Symbol: RS8901XF
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rs8901xf-etched.step / rs8901xf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs8901xf.step / rs8901xf.glb are the bare package body.

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