RS721PXF
Public Unreviewedby Ray
Jiangsu RUNIC Tech Operational Amplifier, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownRS721PXF
Jiangsu RUNIC Tech · Operational Amplifier · SOT-23-5
RS721PXF 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 | Op-amp output. Rail-to-rail; short-circuit current typically bounded to ±150 mA per absolute maximum notes (output diode-clamped to supply rails). |
| 2 | V- | power_in | Negative (lowest) power supply. Tie to GND for single-supply operation or to the negative rail for dual-supply. Total supply Vs = (V+) − (V−) between 2.5 V and 5.5 V (abs max 7 V). |
| 3 | +IN | input | Noninverting analog input. Rail-to-rail input range; internally diode-clamped to the supply rails, so signals beyond (V−)−0.5 V or (V+)+0.5 V must be current-limited to ±10 mA. |
| 4 | -IN | input | Inverting analog input. Rail-to-rail input range; internally diode-clamped to the supply rails, so signals beyond (V−)−0.5 V or (V+)+0.5 V must be current-limited to ±10 mA. |
| 5 | V+ | power_in | Positive (highest) power supply. Total supply Vs = (V+) − (V−) between 2.5 V and 5.5 V (abs max 7 V). Bypass with a 0.1 µF ceramic close to the pin per layout guideline. |
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.
RS721PXF
CAD (KiCad official)
- Symbol:
RS721PXF - 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 |
|---|---|---|
rs721pxf.step |
85 KB | You want the bare part, or you mark your own boards. |
rs721pxf-etched.step |
1.5 MB | You want the part with RS721PXF already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 369 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 (25 pp, sha256
65cd4a62f7986265, 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).