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RS6331BXF

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

componentop-amp-cmprs6331bxf
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Contents

README

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RS6331BXF

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

RS6331BXF 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 +IN input Non-inverting analog input. Common-mode input voltage range extends from V- - 0.1V to V+ + 0.1V (rail-to-rail input) with Vs = 5.5V. Input bias current typ. 1pA.
2 V- power_in Negative supply / ground rail. Total supply range V+ to V- = 2.5V to 5.5V (7.0V absolute max). Tie to GND for single-supply operation.
3 -IN input Inverting analog input. Rail-to-rail input range; inputs are diode-clamped to the supply rails and must be current-limited to <=10mA if driven >0.5V beyond either rail.
4 OUT output Rail-to-rail amplifier output. Output swing to within 8mV of the rails with 10k load, 25mV with 2k load. Short-circuit output current typ. 55mA. Slew rate 0.5V/us.
5 V+ power_in Positive supply rail, +2.5V to +5.5V (7.0V absolute max V+ to V-). Quiescent current 58uA typ, 80uA max. Decouple locally with a 0.1uF ceramic capacitor 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.

  • RS6331BXF
  • RS6331XF
  • RS6331XK
  • RS6331XM

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage Range Vs 2.5 5.5 V TJ=25°C 3
Quiescent Current/Amplifier IQ 58 80 uA TJ=25°C 3
Input Offset Voltage Vos 0.6 3 mV Vcm=Vs/2; TJ=25°C 3
Input Bias Current IB 1 10 pA TJ=25°C 3
Input Offset Current Ios 1 10 pA TJ=25°C 3
Common-Mode Voltage Range Vcm -0.1 5.6 V Vs=5.5V; TJ=25°C 3
Supply Current in Shutdown IQ(OFF) 1 uA TJ=25°C; printed as < 1 uA 3
Shut Down (logic low) threshold VL 0.8 V Referenced to V-; TJ=25°C 3
Amplifier Is Active (logic high) threshold VH 2 V Referenced to V-; TJ=25°C 3
Input Terminals Voltage -0.5 V Referenced to supply rails; upper limit printed as (V+)+0.5V 2
Input Terminals Current -10 10 mA Input terminals, see note 2 2
Storage Temperature -65 150 °C 2
Operating Temperature -40 125 °C 2
Junction Temperature 150 °C 2
Package Thermal Resistance (SOT23-5) 200 °C/W TA=+25°C 2

CAD (KiCad official)

  • Symbol: RS6331BXF
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rs6331bxf-etched.step / rs6331bxf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs6331bxf.step / rs6331bxf.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
rs6331bxf.step 85 KB You want the bare part, or you mark your own boards.
rs6331bxf-etched.step 2.1 MB You want the part with RS6331BXF already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 498 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 (18 pp, sha256 b116c9f04b5bdc78, 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