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Contents

README

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KIA7027AF-RTF

KEC Semicon · Supervisor And Reset ICs · SOT-89-3

KIA7027AF-RTF from KEC Semicon, in a SOT-89-3. 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 input, absolute maximum -0.3 to +15.0 V; detecting voltage for KIA7027 is 2.7V typ. (2.55 to 2.85 V).
2 GND power_in Ground pin; the SOT-89 heat sink (tab) is common to pin 2 (GND).
3 OUT output Reset output (open-collector NPN), low-level output voltage 0.4 V max with RL=200 ohm and output leakage 0.1 uA max at VCC=15V.

Key specifications

Parameter Value
Manufacturer KEC Semicon
Package SOT-89-3
Category Power Management (PMIC)
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 -0.3 15 V 2
Power Dissipation (Package Limitation), KIA7019AF to KIA7045AF PD 500 mW Package limitation 2
Operating Temperature Topr -30 85 °C 2
Storage Temperature Tstg -55 150 °C 2
Detecting Voltage (KIA7027) VS 2.55 2.7 2.85 V RL=200, VOL 0.4V 2
Low-Level Output Voltage VOL 0.4 V RL=200 2
Output Leakage Current IOH 0.1 μA VCC=15V 2
Hysteresis Voltage Vs 30 50 100 mV RL=200 2
Detecting Voltage Temperature Coefficient Vs/ T -0.01 0.01 %/ RL=200 2
Circuit Current at on Time IccL 300 500 μA VCC=Vsmin.-0.05V 2
Circuit Current at off Time IccH 30 50 μA VCC=5.25V 2
Output Current at on Time I IoL I 20 mA VCC=Vsmin.-0.05V, Tc=25 2
Output Current at on Time II IoL II 16 mA VCC=Vsmin.-0.05V, Tc=-30 +75 2

CAD (KiCad official)

  • Symbol: KIA7027AF-RTF
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: kia7027af-rtf-etched.step / kia7027af-rtf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kia7027af-rtf.step / kia7027af-rtf.glb are the bare package body.

Provenance

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

  • Datasheet: KEC Semicon datasheet (4 pp, sha256 ee964c11be24fd17, 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