component

JSM451

Public Made by Adom

by adom

JSMSEMI Hall Sensor, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs jsm451: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
jsm451-etched.fit.json jsm451: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
jsm451-etched.glb jsm451: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
jsm451-etched.step jsm451: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
jsm451.glb Publish 0.1.0 · Ray
jsm451.kicad_mod Publish 0.1.0 · Ray
jsm451.kicad_sym Publish 0.1.0 · Ray
jsm451.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
jsm451.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json jsm451: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md jsm451: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

JSM451

JSMSEMI · Hall Sensor · SOT-23

JSM451 from JSMSEMI, 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 VSUP power_in Supply voltage input, 3.8 V to 40 V (absolute max 60 V). Typical supply current 3.5 mA (7 mA max). Decouple with a local ceramic capacitor; add series R (100 Ω) and CP (4.7 nF) near the sensor in noisy supplies.
2 GND power_in Ground reference return for the device.
3 VOUT output Open-collector Hall switch output; requires external pull-up resistor (typ. RL = 4.7 kΩ). Sinks up to 40 mA with Vsat <= 0.4 V at 20 mA. Output goes LOW when

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package SOT-23
Category Sensor
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • JSM451SOT23
  • JSM451TO92S

CAD (KiCad official)

  • Symbol: JSM451
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: jsm451-etched.step / jsm451-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jsm451.step / jsm451.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
jsm451.step 59 KB You want the bare part, or you mark your own boards.
jsm451-etched.step 1.1 MB You want the part with JSM451 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 282 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: JSMSEMI datasheet (5 pp, sha256 0161d5bd77bcf667, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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).

Datasheet PDF