component
RS422AYSF3
Public Made by Adomby adom
Jiangsu RUNIC Tech Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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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README
markdownRS422AYSF3
Jiangsu RUNIC Tech · Voltage Reference · SOT-23
RS422AYSF3 from Jiangsu RUNIC Tech, in a SOT-23. 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 | REF | input | Reference input. Threshold input relative to the common anode; internal error amplifier regulates the cathode current so that VREF = 1.18V (typ) appears between REF and ANODE. Typical input bias current 0.4µA (max 1.2µA). |
| 2 | CATHODE | power_in | Shunt current/voltage input (K). Sinks 0.5mA to 100mA of regulation current from the external load resistor; recommended VKA range VREF to 36V, absolute max 37V. Dynamic impedance 0.1Ω typ at 1kHz. |
| 3 | ANODE | power_in | Common pin (A), normally connected to ground. All voltages in the datasheet are referenced to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
RS422AYSF3
CAD (KiCad official)
- Symbol:
RS422AYSF3 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
rs422aysf3-etched.step/rs422aysf3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rs422aysf3.step/rs422aysf3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jiangsu RUNIC Tech datasheet (11 pp, sha256
5330799985f35142, 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).