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NCV431AIDR2G

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onsemi Voltage Reference, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ncv431aidr2gfactory-2.0.0extractor-text

Verified NCV431AIDR2G

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: NCV431AIDR2G · SOIC-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 22-page datasheet
  • ✓distributor: lcsc C463603, digikey 488-NCV431AIDR2GTR-ND, mouser 863-NCV431AIDR2G
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-6_hye04l/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.19)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ncv431aidr2g.kicad_sym✓ ncv431aidr2g.kicad_mod✓ ncv431aidr2g.step
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Ray Publish 0.1.0 d1e7262 7d ago

NCV431AIDR2G

onsemi · Voltage Reference · SOIC-8

NCV431AIDR2G from onsemi, in a SOIC-8. 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 Cathode passive Cathode (K) of the shunt regulator; sinks 1.0 mA to 100 mA with VKA from Vref up to 36 V.
2 Anode power_in Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8.
3 Anode power_in Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8.
4 N/C unconnected No connection.
5 N/C unconnected No connection.
6 Anode power_in Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8.
7 Anode power_in Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8.
8 Reference input Reference (R) input of the programmable shunt regulator, set with two external resistors; Iref is rated -0.05 to +10 mA.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Power Management (PMIC)
Pins 8

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 input voltage Vref, TA = 25°C Vref 2.47 2.495 2.52 V VKA = Vref, IK = 10 mA, TA = 25°C 4
Reference input voltage Vref, TA = Tlow to Thigh Vref 2.44 2.55 V VKA = Vref, IK = 10 mA, TA = Tlow to Thigh 4
Reference input voltage deviation over temperature range Vref 7 30 mV VKA = Vref, IK = 10 mA 4
Ratio of change in reference input voltage to change in cathode-anode voltage (VKA 10 V to Vref) Vref/VKA -1.4 -2.7 mV/V IK = 10 mA, VKA = 10 V to Vref 4
Ratio of change in reference input voltage to change in cathode-anode voltage (VKA 36 V to 10 V) Vref/VKA -1 -2 mV/V IK = 10 mA, VKA = 36 V to 10 V 4
Reference input current, TA = 25°C Iref 1.8 4 uA IK = 10 mA, R1 = 10 k, R2 = ∞, TA = 25°C 4
Reference input current, TA = Tlow to Thigh Iref 6.5 uA IK = 10 mA, R1 = 10 k, R2 = ∞, TA = Tlow to Thigh 4
Reference input current deviation over temperature range Iref 0.8 2.5 uA IK = 10 mA, R1 = 10 k, R2 = ∞ 4
Minimum cathode current for regulation Imin 0.5 1 mA VKA = Vref 4
Off-state cathode current Ioff 20 1000 nA VKA = 36 V, Vref = 0 V 4
Dynamic impedance /ZKA/ 0.22 0.5 ohm VKA = Vref, IK = 1.0 mA to 100 mA, f ≤ 1.0 kHz 4
Cathode to anode voltage (absolute maximum) VKA 37 V 2
Cathode current range, continuous IK -100 150 mA 2
Reference input current range, continuous Iref -0.05 10 mA 2
Operating junction temperature TJ 150 °C 2
Operating ambient temperature range (NCV431AI row) TA -40 125 °C NCV431AI, NCV431B, TL431BV, SCV431AI row 2
Storage temperature range Tstg -65 150 °C 2
Total power dissipation, D package PD 0.7 W TA = 25°C, D, LP suffix plastic package 2
Total power dissipation, D package PD 1.5 W TC = 25°C, D, LP suffix plastic package 2
ESD Human Body Model HBM 2000 V JEDEC JESD22-A114F; printed as >2000 2
ESD Machine Model MM 200 V JEDEC JESD22-A115C; printed as >200 2
ESD Charged Device Model CDM 500 V JEDEC JESD22-C101E; printed as >500 2
Cathode to anode voltage (recommended operating) VKA 36 V 2
Cathode current (recommended operating) IK 1 100 mA 2
Thermal resistance, junction-to-ambient, D package RJA 178 °C/W D, LP suffix package 3
Thermal resistance, junction-to-case, D package RJC 83 °C/W D, LP suffix package 3

CAD (KiCad official)

  • Symbol: NCV431AIDR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ncv431aidr2g-etched.step / ncv431aidr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncv431aidr2g.step / ncv431aidr2g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (22 pp, sha256 c82bb95655b732ca, retrieved 2026-10-30, tier: manufacturer)
  • 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