component

WS72321D-4

Public Made by Adom

by adom

WILLSEMI Will Semicon Operational Amplifier, DFN1x1-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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README.md Publish 0.1.0 · Ray 4h ago
ws72321d-4-etched.glb ws72321d-4: factory component page (tier=lcsc) · Ray 4h ago
ws72321d-4-etched.step ws72321d-4: factory component page (tier=lcsc) · Ray 4h ago
ws72321d-4-hero.glb ws72321d-4: hero GLB from the etched model (keeps the MPN mark) · Ray 4h ago
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ws72321d-4.glb Publish 0.1.0 · Ray 4h ago
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WS72321D-4

WILLSEMI Will Semicon · Operational Amplifier · DFN1x1-4

WS72321D-4 from WILLSEMI Will Semicon, in a DFN1x1-4. 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 OUT output Amplifier output with rail-to-rail swing, short-circuit current 43mA source / 47mA sink and unlimited short-circuit duration.
2 -IN input Inverting input, common-mode range (V-)-0.2V to (V+)+0.2V.
3 +IN input Non-inverting input, common-mode range (V-)-0.2V to (V+)+0.2V.
4 V+ power_in Positive supply, single supply operation 1.8V to 5.5V (absolute maximum 6V between V+ and V-).
5 V- power_in Negative supply (ground in single-supply use).

Key specifications

Parameter Value
Manufacturer WILLSEMI Will Semicon
Package DFN1x1-4
Category Amplifiers/Comparators
Pins 5

CAD (KiCad official)

  • Symbol: WS72321D-4
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN1x1-4 (KiCad packages3D, STEP)
  • 3D model files: ws72321d-4-etched.step / ws72321d-4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws72321d-4.step / ws72321d-4.glb are the bare package body.

Provenance

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

  • Datasheet: WILLSEMI Will Semicon datasheet (17 pp, sha256 9712e4651a581ed5, retrieved 2026-10-09, 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