component
AS431HMBNTR-G1
Public Made by Adomby adom
Diodes Incorporated Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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Contents
README
markdownAS431HMBNTR-G1
Diodes Incorporated · Voltage Reference · SOT-23
AS431HMBNTR-G1 from Diodes Incorporated, 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 | CATHODE | passive | Shunt regulator cathode. Sinks 0.5 mA to 100 mA, absolute-max cathode voltage 40 V (recommended max 36 V). Dynamic impedance ~0.15 Ω typ. In the mirror pin-out (AS431HM...), pin 1 is CATHODE (vs. REF in the normal pin-out). |
| 2 | REF | input | Reference (feedback) input. Internally compared against the 2.495 V bandgap reference; tie via a resistor divider from cathode to set the regulated cathode voltage between VREF and 36 V. Reference input current ~0.7 µA typ (4 µA max), IREF absolute max 10 mA. |
| 3 | ANODE | passive | Shunt regulator anode (return / ground for the shunt current path). Cathode current returns through this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
AS431HMBNTR-G1AS431HMBNTR-G1MANTR-G1AS431HMBNTR-G1ANTR-G1AS431HMBNTR-G1AZTR-G1AS431HMBNTR-G1BZTR-G1
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 Voltage (1.0% tolerance) | VREF | 2.47 | 2.495 | 2.52 | V | VKA = VREF, IKA = 10mA | 5 |
| Deviation of Reference Voltage Over Full Temperature Range | ΔVREF | 5 | 8 | mV | VKA = VREF, IKA = 10mA, 0 to +70°C | 5 | |
| Deviation of Reference Voltage Over Full Temperature Range | ΔVREF | 5 | 14 | mV | VKA = VREF, IKA = 10mA, -40 to +85°C | 5 | |
| Deviation of Reference Voltage Over Full Temperature Range | ΔVREF | 5 | 16 | mV | VKA = VREF, IKA = 10mA, -40 to +125°C | 5 | |
| Ratio of Change in Reference Voltage to Change in Cathode Voltage | 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 | ΔVREF/ΔVKA | -0.5 | -2 | mV/V | IKA = 10mA, ΔVKA = 36V to 10V | 5 | |
| Reference Current | IREF | 0.7 | 4 | µA | IKA = 10mA, R1 = 10kΩ, R2 = ∞ | 5 | |
| Deviation of Reference Current Over Full Temperature Range | ΔIREF | 0.4 | 1.2 | µA | IKA = 10mA, R1 = 10kΩ, R2 = ∞, TA = -40 to +125°C | 5 | |
| Minimum Cathode Current for Regulation | IKA(Min) | 0.35 | 0.5 | mA | VKA = VREF | 5 | |
| Off-state Cathode Current | IKA(Off) | 0.002 | 0.5 | µA | VKA = 36V, VREF = 0 | 5 | |
| Dynamic Impedance | ZKA | 0.15 | 0.5 | Ω | VKA = VREF, IKA = 0.5 to 100mA, f ≤ 1.0KHz | 5 | |
| Cathode Voltage (absolute maximum) | VKA | 40 | V | 4 | |||
| Cathode Current Range (Continuous) (absolute maximum) | IKA | -100 | 150 | mA | Continuous | 4 | |
| Reference Input Current Range (absolute maximum) | IREF | 10 | mA | 4 | |||
| Junction Temperature (absolute maximum) | TJ | 150 | °C | 4 | |||
| Storage Temperature Range (absolute maximum) | TSTG | -65 | 150 | °C | 4 | ||
| ESD Human Body Model (absolute maximum) | ESD | 2000 | V | Human Body Model | 4 | ||
| Cathode Voltage (recommended operating) | VKA | 36 | V | Min printed as VREF | 4 | ||
| Cathode Current (recommended operating) | IKA | 0.5 | 100 | mA | 4 | ||
| Operating Ambient Temperature Range (recommended operating) | TA | -40 | 125 | °C | 4 | ||
| Thermal Resistance Junction-to-Ambient, SOT23 (absolute maximum table) | θJA | 380 | °C/W | SOT23 | 4 | ||
| Thermal Resistance Junction-to-Case, SOT23 | θJC | 136 | °C/W | SOT23 | 5 |
CAD (KiCad official)
- Symbol:
AS431HMBNTR-G1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
as431hmbntr-g1-etched.step/as431hmbntr-g1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);as431hmbntr-g1.step/as431hmbntr-g1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (None pp, sha256
53df2842f0c152f0, 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).