component

SS541AT

Public Made by Adom

by adom

Honeywell Hall Switches, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentmagnetic sensorsss541atfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 8d ago
viewers ss541at: viewers · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago
ss541at-etched.glb Publish 0.1.0 · Ray 8d ago
ss541at-etched.step ss541at: factory component page (tier=lcsc) · Ray 8d ago
ss541at-hero.glb ss541at: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
ss541at-hero.overlay.json Publish 0.1.0 · Ray 8d ago
ss541at.glb Publish 0.1.0 · Ray 8d ago
ss541at.kicad_mod Publish 0.1.0 · Ray 8d ago
ss541at.kicad_sym Publish 0.1.0 · Ray 8d ago
ss541at.lbr Publish 0.1.0 · Ray 8d ago
ss541at.step Publish 0.1.0 · Ray 8d ago

SS541AT

Honeywell · Hall Switches · SOT-89

SS541AT from Honeywell, in a SOT-89. 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 Vs power_in Positive supply (+) pin, operating range 3.8 Vdc to 30 Vdc (absolute max -1 V to 30 V); a capacitor between output and supply may be needed above 24 Vdc.
2 GND power_in Ground (-) pin, common return for the supply and the open-collector output.
3 OUT output Open-collector sinking output (O), rated 20 mA continuous sink and 50 mA max, Vout max 30 V, Vsat 0.4 V max at 20 mA.

Key specifications

Parameter Value
Manufacturer Honeywell
Package SOT-89
Category Magnetic Sensors
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
Supply voltage (Vs) Vs 3.8 30 Vdc 2
Rated sinking current Isink 20 mA 2
Current consumption, on (SS500 Series) 10 mA Vs = 30 Vdc, -40°C < T < 150°C, B > operate max. 2
Current consumption, off (SS500 Series) 10 mA Vs = 30 Vdc, Isink = 20 mA, -40°C < T < 150°C, B > release min. 2
Vsat (SS500 Series) Vsat 0.4 V Vs = 3.8 Vdc, B > operate max. 2
Output leakage current (SS500 Series) 10 uA Vs = 24 V, Vout = 30 V, B < release min. 2
Output switching time, rise 1.5 us Vs = 12 V, RL = 1.6 kOhm, CL = 20 pF, T = 25°C [77°F] 2
Output switching time, fall 1.5 us Vs = 12 V, RL = 1.6 kOhm, CL = 20 pF, T = 25°C [77°F] 2
Operating temperature -40 150 °C 2
Storage temperature -50 150 °C 2
Supply voltage (Vs) absolute maximum Vs -1 30 V 3
Applied output voltage (Vout), SS500 Series (off) Vout 30 V 3
Output current (Isink) Isink 50 mA Vs = -1 Vdc to 24 Vdc 3
Output current (Isink) Isink 37 mA Vs = 24 Vdc to 25 Vdc 3
Output current (Isink) Isink 33 mA Vs = 25 Vdc to 26 Vdc 3
Output current (Isink) Isink 28 mA Vs = 26 Vdc to 27 Vdc 3
Output current (Isink) Isink 24 mA Vs = 27 Vdc to 28 Vdc 3
Output current (Isink) Isink 19 mA Vs = 28 Vdc to 29 Vdc 3
Output current (Isink) Isink 15 mA Vs = 29 Vdc to 30 Vdc 3
Operate point, minimum (unipolar SS541AT) 50 Gauss -40°C [-40°F] 4
Operate point, maximum (unipolar SS541AT) 135 Gauss -40°C [-40°F] 4
Release point, minimum (unipolar SS541AT) 20 Gauss -40°C [-40°F] 4
Release point, maximum (unipolar SS541AT) 120 Gauss -40°C [-40°F] 4
Differential, minimum (unipolar SS541AT) 15 Gauss -40°C [-40°F] 4
Operate point, minimum (unipolar SS541AT) 53 Gauss 0°C [0°F] 4
Operate point, maximum (unipolar SS541AT) 117 Gauss 0°C [0°F] 4
Release point, maximum (unipolar SS541AT) 99 Gauss 0°C [0°F] 4
Operate point, minimum (unipolar SS541AT) 55 Gauss 25°C [77°F] 4
Operate point, maximum (unipolar SS541AT) 115 Gauss 25°C [77°F] 4
Release point, maximum (unipolar SS541AT) 95 Gauss 25°C [77°F] 4
Differential, minimum (unipolar SS541AT) 20 Gauss 25°C [77°F] 4
Operate point, minimum (unipolar SS541AT) 45 Gauss 85°C [185°F] 4
Operate point, maximum (unipolar SS541AT) 120 Gauss 85°C [185°F] 4
Release point, minimum (unipolar SS541AT) 15 Gauss 85°C [185°F] 4
Release point, maximum (unipolar SS541AT) 105 Gauss 85°C [185°F] 4
Operate point, minimum (unipolar SS541AT) 40 Gauss 125°C [257°F] 4
Operate point, maximum (unipolar SS541AT) 123 Gauss 125°C [257°F] 4
Release point, maximum (unipolar SS541AT) 115 Gauss 125°C [257°F] 4
Differential, minimum (unipolar SS541AT) 8 Gauss 125°C [257°F] 4
Operate point, minimum (unipolar SS541AT) 35 Gauss 150°C [302°F] 4
Operate point, maximum (unipolar SS541AT) 125 Gauss 150°C [302°F] 4
Release point, minimum (unipolar SS541AT) 10 Gauss 150°C [302°F] 4
Differential, minimum (unipolar SS541AT) 5 Gauss 150°C [302°F] 4

CAD (KiCad official)

  • Symbol: SS541AT
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: ss541at-etched.step / ss541at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ss541at.step / ss541at.glb are the bare package body.

Provenance

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

  • Datasheet: Honeywell datasheet (11 pp, sha256 5ff8b87951167aa6, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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