component
AP431SBRTR-G1
Public Unreviewedby Ray
Diodes Incorporated Voltage Reference, SOT-89-3. 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
markdownAP431SBRTR-G1
Diodes Incorporated · Voltage Reference · SOT-89-3
AP431SBRTR-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 / feedback input. The internal error amplifier compares this pin against the 2.5V internal reference and modulates cathode sink current to hold REF at VREF (2.500V typ.). Typically driven by a resistor divider from CATHODE to ANODE to set the regulated cathode voltage (VKA = VREF·(1 + R1/R2) + IREF·R1). IREF ≈ 0.2µA typ. |
| 2 | ANODE | power_in | Anode / ground return. The device sinks cathode current through this pin; usually tied to circuit ground in shunt-regulator use. |
| 3 | CATHODE | power_in | Cathode / regulated node. Sinks 0.1 to 100mA (recommended operating range; -100 to +150mA absolute max) when the regulation loop is active. Cathode voltage range VREF to 36V (recommended); 40V absolute max. Off-state cathode current 0.05µA typ. at VKA = 36V with VREF = 0. |
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.
AP431SBRTR-G1ARTR-G1AP431SBRTR-G1HARTR-G1AP431SBRTR-G1AP431SBRTR-G1HBRTR-G1AP431SBRTR-G1ANTR-G1AP431SBRTR-G1AN1TR-G1AP431SBRTR-G1HANTR-G1AP431SBRTR-G1HAN1TR-G1AP431SBRTR-G1BNTR-G1AP431SBRTR-G1BN1TR-G1AP431SBRTR-G1HBNTR-G1AP431SBRTR-G1HBN1TR-G1AP431SBRTR-G1AZTR-G1AP431SBRTR-G1HAZTR-G1AP431SBRTR-G1BZTR-G1AP431SBRTR-G1HBZTR-G1
CAD (KiCad official)
- Symbol:
AP431SBRTR-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 (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).