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S9018-MS

Public Made by Adom

by adom

MSKSEMI Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorss9018-msfactory-2.0.0extractor-text
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Symbol & Footprint

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Datasheet

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Contents

README

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S9018-MS

MSKSEMI · Bipolar (BJT) · SOT-23

S9018-MS from MSKSEMI, in a SOT-23. 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 BASE passive Base terminal of the NPN transistor; the datasheet gives no pin-specific limit, and the device maximum ratings are VEBO 5 V and IC 50 mA continuous.
2 EMITTER passive Emitter terminal of the NPN transistor; the datasheet gives no pin-specific limit, and the device maximum ratings are VEBO 5 V and IC 50 mA continuous.
3 COLLECTOR passive Collector terminal of the NPN transistor; the datasheet gives no pin-specific limit, and the device maximum ratings are VCBO 30 V, VCEO 15 V and IC 50 mA continuous.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOT-23
Category Transistors/Thyristors
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
Collector-base breakdown voltage V(BR)CBO 30 V IC= 100μA, IE=0 2
Collector-emitter breakdown voltage V(BR)CEO 15 V IC= 1mA, IB=0 2
Emitter-base breakdown voltage V(BR)EBO 5 V IE=100μA, IC=0 2
Collector cut-off current ICBO 0.05 μA VCB=12V, IE=0 2
Collector cut-off current ICEO 0.1 μA VCE=12V, IB=0 2
Emitter cut-off current IEBO 0.1 μA VEB= 3V, IC=0 2
DC current gain hFE(1) 70 200 VCE=5V, IC= 1mA 2
Collector-emitter saturation voltage VCE(sat) 0.5 V IC=10mA, IB= 1mA 2
Base-emitter saturation voltage VBE(sat) 1.4 V IC=10mA, IB= 1mA 2
Transition frequency fT 800 MHz VCE=5V, IC= 5mA, f=400MHz 2
Collector-base voltage VCBO 30 V 2
Collector-emitter voltage VCEO 15 V 2
Emitter-base voltage VEBO 5 V 2
Collector current -Continuous IC 50 mA 2
Collector power dissipation PC 200 mW 2
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ 2
Thermal resistance from junction to ambient RθJA 625 ℃/W 2

CAD (KiCad official)

  • Symbol: S9018-MS
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: s9018-ms-etched.step / s9018-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); s9018-ms.step / s9018-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 6ef09d3149921203, 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