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Contents

README

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JSM503

JSMSEMI · Hall Switches · TO-92S

JSM503 from JSMSEMI, in a TO-92S. 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 VCC power_in Supply voltage pin, operating from 2.7 V to 30 V with built-in reverse-voltage protection, and an absolute maximum of 20 V for t < 1000 h.
2 GND power_in Ground reference; all voltages in the datasheet are referenced to GND.
3 Vout output Open-drain output of the 3-wire device, driven low by a magnetic south pole on the branded side, with a recommended maximum of 30 V and 25 mA (absolute maximum 65 mA).

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package TO-92S
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 VCC 20 V t < 1000 h 11
Supply voltage VCC 34 V t < 96 h 11
Supply voltage VCC 36 V t < 5 min 11
Supply voltage VCC 40 V t < 5 x 400 ms; with series resistor RV > 100 11
Output voltage VOUT -0.5 V t < 1000 h 11
Output voltage VOUT 34 V t < 96 h 11
Output voltage VOUT 36 V t < 5 min 11
Output voltage VOUT 40 V t < 5 x 400 ms; with series resistor RL > 100 11
Output current IO 65 mA 11
Reverse output current IOR 50 mA 11
Ambient temperature range TA -40 170 °C t < 96 h 11
Maximum latch-up free current at any pin Ilatch -100 100 mA AEC Q100-004, class 1 11
Human body model ESD VHBM 12 kV AEC Q100-002 11
Supply voltage VCC 2.7 30 V 3-wire 12
Ambient temperature range TA -40 150 °C 12
Output voltage VOUT 30 V 12
Output current IOUT 25 mA 12
Supply current Icc 2.5 3.2 mA 3-wire 12
Reverse current IccR 1 mA for Vcc = -18 V 12
Port low output voltage Vol 0.13 0.4 V IO = 20 mA 12
Port low output voltage Vol 0.5 V IO = 25 mA 12
Output fall time tf 1 µs Vcc = 12V; RL = 820 ; CL = 20 pF 12
Output rise time tr 1 µs 12
Effective noise of magnetic switching points Bnoise 0.1 mT For square wave signal with 1 kHz 12
Output jitter tj 0.5 µs For square wave signal with 1 kHz 12
Delay time td 16 µs 12
Output refresh period tsamp 1.6 2 2.66 µs 12
Enable time of output after settling of Vcc ten 50 µs VCC = 12V 12
Operate point (on point) BON 5.5 mT TA = -40 °C to 150 °C, VCC = 3.0 V to 30 V; typical at TA = 25 °C 13
Release point (off point) BOFF 3.5 mT TA = -40 °C to 150 °C, VCC = 3.0 V to 30 V; typical at TA = 25 °C 13
Hysteresis BHYS 2 mT TA = -40 °C to 150 °C, VCC = 3.0 V to 30 V; typical at TA = 25 °C 13
Temp. coeff. of magnetic thresh. TC 1000 ppm/K TA = -40 °C to 150 °C, VCC = 3.0 V to 30 V; typical at TA = 25 °C 13

CAD (KiCad official)

  • Symbol: JSM503
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92S (KiCad packages3D, STEP)
  • 3D model files: jsm503-etched.step / jsm503-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jsm503.step / jsm503.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (15 pp, sha256 605f4b6ca0dfb404, retrieved 2026-10-18, 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