component
KTH1721TH-ST3
Public Made by Adomby adom
CONNTEK Hall Switches, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownKTH1721TH-ST3
CONNTEK · Hall Switches · SOT-23-3L
KTH1721TH-ST3 from CONNTEK, in a SOT-23-3L. 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 | VDD | power_in | Supply input, operating range 1.8 V to 5.5 V; the absolute maximum supply voltage is 6 V, and a 1 µF capacitor should be connected between VDD and GND, placed as close to the VDD pin as possible, to filter supply noise. |
| 2 | OUTPUT | output | CMOS push-pull output that goes low when the N-pole field exceeds BOP and returns high when it falls below BRP; VOL is 0.05 V typical (0.15 V max) and VOH is VDD-0.15 V min at IOUT = 1 mA, with a maximum output drive current of 5 mA. |
| 3 | GND | power_in | Ground reference pin for the supply and the output; the 1 µF VDD decoupling capacitor is connected between this pin and VDD. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CONNTEK |
| Package | SOT-23-3L |
| Category | Magnetic Sensors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
KTH1721TH-ST3 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
kth1721th-st3-etched.step/kth1721th-st3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kth1721th-st3.step/kth1721th-st3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CONNTEK datasheet (11 pp, sha256
f5b8e2504d167edf, retrieved 2026-10-09, 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: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).