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Contents

README

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RS321BKXF

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

RS321BKXF from Jiangsu RUNIC Tech, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 +IN input Positive (noninverting) input; the common-mode input range is -0.1V to +5.6V with Vs = 5.5V.
2 V- power_in Negative (lowest) power supply; single-supply operation is 2.5V to 5.5V, or dual-supply ±1.25V to ±2.75V.
3 -IN input Negative (inverting) input; the same common-mode input range of -0.1V to +5.6V applies with Vs = 5.5V.
4 OUT output Output; rail-to-rail output with 120 mA typical source current at 25°C, and continuous short-circuit to ground is permitted for one amplifier per package.
5 V+ power_in Positive (highest) power supply; absolute maximum supply voltage (V+) - (V-) is 7V.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT-23-5
Category Amplifiers/Comparators
Pins 5

CAD (KiCad official)

  • Symbol: RS321BKXF
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rs321bkxf-etched.step / rs321bkxf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs321bkxf.step / rs321bkxf.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (10 pp, sha256 9ba52bfde54620c2, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF