component
AS431IBNTR-G1
Public Made by Adomby adom
Diodes Incorporated Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownAS431IBNTR-G1
Diodes Incorporated · Voltage Reference · SOT-23
AS431IBNTR-G1 from Diodes Incorporated, in a SOT-23. 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 | input | Reference input of the shunt regulator, set to VREF (2.5 V typical) relative to the anode, with reference input current limited to 10 mA maximum per the absolute maximum ratings. |
| 2 | ANODE | passive | Anode terminal, typically tied to ground in the shunt regulator applications shown; the datasheet gives no separate anode rating beyond the cathode-to-anode operating limits. |
| 3 | CATHODE | passive | Cathode terminal, which the regulator shunts; the recommended cathode voltage is VREF to 36 V and the recommended cathode current is 0.05 mA to 100 mA, with continuous cathode current rated -100 mA to 150 mA absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Cathode Voltage | VKA | 40 | V | 4 | |||
| Cathode Current Range (Continuous) | IKA | -100 | 150 | mA | 4 | ||
| Reference Input Current Range | IREF | 10 | mA | 4 | |||
| Power Dissipation (SOT-23) | PD | 370 | mW | SOT-23 package | 4 | ||
| ESD (Human Body Model) | ESD | 2000 | V | 4 | |||
| Junction Temperature | TJ | 150 | ºC | 4 | |||
| Storage Temperature Range | TSTG | -65 | 150 | ºC | 4 | ||
| Cathode Voltage | VKA | 36 | V | Minimum printed as VREF (not numeric) | 4 | ||
| Cathode Current | IKA | 0.05 | 100 | mA | 4 | ||
| Operating Ambient Temperature Range | TA | -40 | 125 | ºC | 4 | ||
| Reference Voltage (1.0% grade) | VREF | 2.475 | 2.5 | 2.525 | V | VKA = VREF, IKA = 10mA, TA = +25ºC | 5 |
| Deviation of Reference Voltage Over Full Temperature Range (0 to +70°C) | ΔVREF | 4.5 | 8 | mV | VKA = VREF, IKA = 10mA, 0 to +70°C | 5 | |
| Deviation of Reference Voltage Over Full Temperature Range (-40 to +85°C) | ΔVREF | 4.5 | 10 | mV | VKA = VREF, IKA = 10mA, -40 to +85°C | 5 | |
| Deviation of Reference Voltage Over Full Temperature Range (-40 to +125°C) | ΔVREF | 4.5 | 16 | mV | VKA = VREF, IKA = 10mA, -40 to +125°C | 5 | |
| Ratio of Change in Reference Voltage to Change in Cathode Voltage (ΔVKA = 10V to VREF) | ΔVREF/ΔVKA | -1 | -2.7 | mV/V | IKA = 10mA, ΔVKA = 10V to VREF | 5 | |
| Ratio of Change in Reference Voltage to Change in Cathode Voltage (ΔVKA = 36V to 10V) | ΔVREF/ΔVKA | -0.5 | -2 | mV/V | IKA = 10mA, ΔVKA = 36V to 10V | 5 | |
| Reference Current | IREF | 0.035 | 0.5 | µA | IKA = 10mA, R1 = 10kΩ, R2 = ∞ | 5 | |
| Deviation of Reference Current Over Full Temperature Range | ΔIREF | 0.03 | 0.3 | µA | IKA = 10mA, R1 = 10kΩ, R2 = ∞, TA = -40 to +125°C | 5 | |
| Minimum Cathode Current for Regulation | IKA(Min) | 10 | 50 | µA | VKA = VREF | 5 | |
| Off-state Cathode Current | IKA(Off) | 0.05 | 1 | µA | VKA = 36V, VREF = 0 | 5 | |
| Dynamic Impedance | ZKA | 0.15 | 0.5 | Ω | VKA = VREF, IKA = 1 to 100mA, f ≤ 1.0kHz | 5 | |
| Thermal Resistance Junction-to-Case (SOT-23) | θJC | 113 | °C/W | SOT-23 package | 5 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs | ESD ESD (Human Body Model) 2000 V Note 4: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and | 4 |
CAD (KiCad official)
- Symbol:
AS431IBNTR-G1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
as431ibntr-g1-etched.step/as431ibntr-g1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);as431ibntr-g1.step/as431ibntr-g1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (17 pp, sha256
7798d8aa0644ba76, retrieved 2026-10-19, 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).