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FMMT491-TP

Public Made by Adom

by adom

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

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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FMMT491-TP

MCC Micro Commercial Components · Bipolar (BJT) · SOT-23

FMMT491-TP from MCC Micro Commercial Components, 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 rates the emitter-base voltage VEBO at 5 V maximum.
2 EMITTER passive Emitter terminal of the NPN transistor; the datasheet rates the emitter-base voltage VEBO at 5 V maximum.
3 COLLECTOR passive Collector terminal of the NPN transistor; the datasheet rates VCBO at 80 V, VCEO at 60 V, and continuous collector current IC at 1 A.

Key specifications

Parameter Value
Manufacturer MCC Micro Commercial Components
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 80 V IC=100µA, IE=0 2
Collector-Emitter Breakdown Voltage V(BR)CEO 60 V IC=10mA, IB=0 2
Emitter-Base Breakdown Voltage V(BR)EBO 5 V IE=100µA, IC=0 2
Collector-Emitter Saturation Voltage VCE(sat) 0.25 V IC=500mA, IB=50mA 2
Collector-Emitter Saturation Voltage VCE(sat) 0.5 V IC=1A, IB=100mA 2
Base-Emitter Saturation Voltage VBE(sat) 1.1 V IC=1A, IB=100mA 2
DC Current Gain hFE(1) 100 VCE=5V, IC=1mA 2
DC Current Gain hFE(2) 100 300 VCE=5V, IC=500mA 2
DC Current Gain hFE(3) 80 VCE=5V, IC=1A 2
DC Current Gain hFE(4) 30 VCE=5V, IC=2A 2
Transition Frequency fT 150 MHz VCE=10V, IC=50mA, f=100MHz 2
Collector-Base Cutoff Current ICBO 0.1 µA VCB=60V, IE=0 2
Emitter-Base Cutoff Current IEBO 0.1 µA VEB=4V, IC=0 2
Output Capacitance Cob 10 pF VCB=10V, IE=0, f=1MHz 2
Collector-Base Voltage VCBO 80 V 1
Collector-Emitter Voltage VCEO 60 V 1
Emitter-Base Voltage VEBO 5 V 1
Continuous Collector Current IC 1 A 1
Power Dissipation PD 500 mW 1
Storage Temperature Range -55 150 ℃ 1
Operating Junction Temperature Range -55 150 ℃ 1
Thermal Resistance, Junction to Ambient 250 ℃/W Junction to ambient 1

CAD (KiCad official)

  • Symbol: FMMT491-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: fmmt491-tp-etched.step / fmmt491-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fmmt491-tp.step / fmmt491-tp.glb are the bare package body.

Provenance

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

  • Datasheet: MCC Micro Commercial Components datasheet (4 pp, sha256 0281cc762bfc2b54, retrieved 2026-10-17, 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