component
RS432AYSF3
Public Made by Adomby adom
Jiangsu RUNIC Tech Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, 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
markdownRS432AYSF3
Jiangsu RUNIC Tech · Voltage Reference · SOT-23-3
RS432AYSF3 from Jiangsu RUNIC Tech, in a SOT-23-3. 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 | Ref | passive | Threshold (reference) input relative to the common anode, with reference input current rated from -0.05 mA to +10 mA absolute maximum. |
| 2 | Cathode | passive | Shunt current/voltage input, operated with cathode voltage from VREF to 36 V and continuous cathode current from 0.5 mA to 100 mA (absolute maximum cathode voltage 37 V). |
| 3 | Anode | passive | Common pin, normally connected to ground; all voltages are specified with respect to the GND pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reference Input Voltage (0.5% grade) | VREF | 2.488 | 2.5 | 2.512 | V | VKA=VREF, IKA=10mA | 8 |
| Deviation of Reference Input Voltage over temperature | ΔVREF | 20 | 60 | mV | VKA=VREF, IKA=10mA, TA= -40°C ~ +125°C | 8 | |
| Ratio of change in reference input voltage to change in cathode voltage (ΔVKA=10V~VREF) | ΔVREF/ΔVKA | -1.2 | -2 | mV/V | IKA=10mA, ΔVKA=10V~VREF | 8 | |
| Ratio of change in reference input voltage to change in cathode voltage (ΔVKA=36V~10V) | ΔVREF/ΔVKA | -1.5 | -2 | mV/V | IKA=10mA, ΔVKA=36V~10V | 8 | |
| Reference Input Current | IREF | 1.7 | 4 | uA | IKA=10mA, R1=10kΩ, R2=∞ | 8 | |
| Deviation of Reference Input Current over full temperature range | ΔIREF | 2 | 5 | uA | IKA=10mA, R1=10kΩ, R2=∞, TA= -40°C ~ +125°C | 8 | |
| Minimum cathode current for regulation | IKA (min) | 0.3 | 0.5 | mA | VKA=VREF | 8 | |
| Off-state Cathode Current | IKA (OFF) | 0.05 | 0.5 | uA | VKA=36V, VREF=0V | 8 | |
| Dynamic Impedance | ZKA | 0.2 | 0.5 | Ω | VKA=VREF, IKA=1mA to 100mA, f≤1.0KHz | 8 | |
| Cathode Voltage (recommended) | VKA | 36 | V | Recommended operating conditions; minimum printed as VREF (approximately 2.5 V) | 6 | ||
| Cathode Current Range (Continuous, recommended) | IKA | 0.5 | 100 | mA | Continuous | 6 | |
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | Over operating free-air temperature range | 6 | |
| Cathode Voltage | VKA | -0.3 | 37 | V | Referenced to GND pin | 6 | |
| Cathode Current Range (Continuous) | IKA | -100 | 155 | mA | Continuous | 6 | |
| Reference Input Current Range | IREF | -0.05 | 10 | mA | 6 | ||
| Operating junction temperature | Topr | -40 | 150 | °C | 6 | ||
| Power Dissipation | PD | 370 | mW | 6 | |||
| Storage temperature | Tstg | -55 | 150 | °C | 6 | ||
| Junction-to-ambient thermal resistance | RθJA | 185.6 | °C/W | Single printed value; thermal resistance varies with operating conditions | 7 | ||
| Junction-to-case (top) thermal resistance | RθJC (top) | 104.3 | °C/W | Single printed value | 7 | ||
| Junction-to-board thermal resistance | RθJB | 54.5 | °C/W | Single printed value | 7 | ||
| Junction-to-top characterization parameter | ψJT | 31 | °C/W | Single printed value | 7 | ||
| Junction-to-board characterization parameter | ψJB | 54.5 | °C/W | Single printed value | 7 |
CAD (KiCad official)
- Symbol:
RS432AYSF3 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
rs432aysf3-etched.step/rs432aysf3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rs432aysf3.step/rs432aysf3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jiangsu RUNIC Tech datasheet (14 pp, sha256
a1f11e8f179b83ac, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).