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SCV431ASN1T1G
Public Made by Adomby adom
onsemi Voltage Reference, SOT-23. 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
markdownSCV431ASN1T1G
onsemi · Voltage Reference · SOT-23
SCV431ASN1T1G from onsemi, 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 | Reference (R) | input | Reference input of the internal 1.24 V reference, with continuous reference input current rated 0.05 to 10 mA. |
| 2 | Anode (A) | passive | Anode is the second terminal of the shunt regulator, with cathode-to-anode voltage rated 18 V maximum and recommended up to 16 V. |
| 3 | Cathode (K) | passive | Cathode is the shunt output terminal, with continuous cathode current rated −20 to 25 mA and recommended operating range 0.1 to 20 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage (VKA = Vref, IK = 10 mA, TA = 25°C) | Vref | 1.228 | 1.24 | 1.252 | V | VKA = Vref, IK = 10 mA, TA = 25°C | 5 |
| Reference Voltage (TA = 40°C to 85°C) | Vref | 1.215 | 1.265 | V | VKA = Vref, IK = 10 mA, TA = 40°C to 85°C | 5 | |
| Reference Voltage (TA = 40°C to 125°C) | Vref | 1.211 | 1.265 | V | VKA = Vref, IK = 10 mA, TA = 40°C to 125°C | 5 | |
| Reference Input Voltage Deviation Over Temperature (TA = 40°C to 85°C) | Vref | 7.2 | 20 | mV | VKA = Vref, IK = 10 mA, TA = 40°C to 85°C | 5 | |
| Reference Input Voltage Deviation Over Temperature (TA = 40°C to 125°C) | Vref | 7.2 | 24 | mV | VKA = Vref, IK = 10 mA, TA = 40°C to 125°C | 5 | |
| Ratio of Reference Input Voltage Change to Cathode Voltage Change | Vref/VKA | -0.6 | -1.5 | mV/V | VKA = Vref to 16 V, IK = 10 mA | 5 | |
| Reference Terminal Current | Iref | 0.15 | 0.3 | µA | IK = 10 mA, R1 = 10 kΩ, R2 = open | 5 | |
| Reference Input Current Deviation Over Temperature (TA = 40°C to 85°C) | Iref | 0.04 | 0.08 | µA | IK = 10 mA, R1 = 10 kΩ, R2 = open, TA = 40°C to 85°C | 5 | |
| Reference Input Current Deviation Over Temperature (TA = 40°C to 125°C) | Iref | 0.1 | µA | IK = 10 mA, R1 = 10 kΩ, R2 = open, TA = 40°C to 125°C | 5 | ||
| Minimum Cathode Current for Regulation | IK(min) | 30 | 80 | µA | Figure 3 test circuit | 5 | |
| Off-State Cathode Current | IK(off) | 0.01 | 0.04 | µA | VKA = 6.0 V, Vref = 0 | 5 | |
| Off-State Cathode Current | IK(off) | 0.012 | 0.05 | µA | VKA = 16 V, Vref = 0 | 5 | |
| Dynamic Impedance | /ZKA/ | 0.25 | 0.4 | Ω | VKA = Vref, IK = 0.1 mA to 20 mA, f ≤ 1.0 kHz | 5 | |
| Cathode to Anode Voltage (recommended) | VKA | 16 | V | Printed minimum is Vref (not a numeric value) | 2 | ||
| Cathode Current (recommended) | IK | 0.1 | 20 | mA | 2 | ||
| Cathode to Anode Voltage (absolute maximum) | VKA | 18 | V | 2 | |||
| Cathode Current Range, Continuous | IK | -20 | 25 | mA | Continuous | 2 | |
| Reference Input Current Range, Continuous | Iref | 0.05 | 10 | mA | Continuous | 2 | |
| Operating Junction Temperature | TJ | 150 | °C | 2 | |||
| Operating Ambient Temperature Range (NCV431/SCV431) | TA | -40 | 125 | °C | SCV431 (SOT-23 package) variant | 2 | |
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Thermal Resistance, Junction-to-Ambient (SOT-23-3) | RθJA | 491 | °C/W | SN1 suffix, SOT-23-3 package; single printed value | 2 |
CAD (KiCad official)
- Symbol:
SCV431ASN1T1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
scv431asn1t1g-etched.step/scv431asn1t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);scv431asn1t1g.step/scv431asn1t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (20 pp, sha256
9c0939426d797c12, 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).