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3D Model

Contents

Pinout
Key specifications
Ordering variants
CAD (KiCad official)
Provenance

README

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CH411SR

COSEMITECH · Hall Sensor · SOT-23-3L

CH411SR from COSEMITECH, in a SOT-23-3L. 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	VDD	power_in	Supply voltage pin. Operating range 3.5 V to 30 V (absolute max 40 V, reverse -40 V). Supply current typ 4.0 mA, max 9 mA with B<B_RP.
2	OUT	output	Open-collector digital output. Sinks up to 20 mA (abs max 50 mA), V_DSon <= 0.4 V at 15 mA. Output driven LOW when magnetic flux density B > B_OP, HIGH (open) when B < B_RP; latches previous state when field is removed. Absolute max output voltage 40 V; leakage <=10 uA at 30 V. Requires an external pull-up resistor.
3	GND	power_in	Ground reference pin. All voltages in the datasheet are referenced to GND.

Key specifications

Parameter	Value
Manufacturer	COSEMITECH
Package	SOT-23-3L
Category	Sensor
Pins	3

Ordering variants

CH411SR
CH411SRTB
CH411SRER

CAD (KiCad official)

Symbol: CH411SR
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

Datasheet: COSEMITECH datasheet (None pp, sha256 eb2e28af54511d28, retrieved 2026-08-17, tier: lcsc)
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

Symbol & Footprint

Schematic Symbol

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PCB Footprint