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SCV431ASN1T1G

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onsemi Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SCV431ASN1T1G

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); scv431asn1t1g.step / scv431asn1t1g.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF