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AP431SARTR-G1
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Diodes Incorporated Voltage Reference, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+59@@ -0,0 +1,59 @@+# AP431SARTR-G1++**Diodes Incorporated** · Voltage Reference · SOT-89-3++AP431SARTR-G1 from Diodes Incorporated, in a SOT-89-3. 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 pin. Feedback sense input compared against the internal 2.500V (AP431SA/B) / 2.495V (AP431SHA/B) bandgap reference by the internal error amplifier. Typical reference input current 0.2µA (0.5µA max) at IKA=1mA, R1=10kΩ. Absolute maximum IREF = 10mA. |+| 2 | ANODE | power_in | Anode terminal (device return/ground). Emitter of the internal shunt transistor and low-side of the internal amplifier - typically connected to circuit ground in a shunt regulator configuration. |+| 3 | CATHODE | power_in | Cathode terminal (shunt regulation node). Sinks current from the regulated node when VKA rises above the programmed threshold. Recommended operating VKA range: VREF to 36V; IKA range 0.1mA to 100mA. Absolute maximum VKA = 40V; continuous IKA = -100 to 150mA. Dynamic impedance 0.1Ω typ. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated |+| Package | SOT-89-3 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `AP431SARTR-G1`+- `AP431SARTR-G1HAR`+- `AP431SARTR-G1BR`+- `AP431SARTR-G1HBR`+- `AP431SARTR-G1AN`+- `AP431SARTR-G1AN1`+- `AP431SARTR-G1HAN`+- `AP431SARTR-G1HAN1`+- `AP431SARTR-G1BN`+- `AP431SARTR-G1BN1`+- `AP431SARTR-G1HBN`+- `AP431SARTR-G1HBN1`+- `AP431SARTR-G1AZ`+- `AP431SARTR-G1HAZ`+- `AP431SARTR-G1BZ`+- `AP431SARTR-G1HBZ`++## CAD (KiCad official)++- Symbol: `AP431SARTR-G1`+- Footprint: `Package_TO_SOT_SMD:SOT-89-3`+- 3D model: SOT-89-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560088301572562944) (None pp, sha256 `770b9144c5e6fc10`, 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](docs/ap431sartr-g1-datasheet.pdf)
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