component
FMMT489
Public Made by Adomby adom
Slkor(SLKORMICRO Elec.) Bipolar Transistors - BJT, SOT-23. 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
markdownFMMT489
Slkor(SLKORMICRO Elec.) · Bipolar Transistors - BJT · SOT-23
FMMT489 from Slkor(SLKORMICRO Elec.), 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 | input | Base terminal of the NPN transistor; base current rating IB is 200 mA max, and VEBO is 5 V max. |
| 2 | Emitter | passive | Emitter terminal of the transistor; emitter-base voltage VEBO is 5 V max. |
| 3 | Collector | passive | Collector terminal of the transistor; VCBO 50 V, VCEO 30 V, IC 1 A continuous and 4 A peak (ICM). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 | 50 | V | IC=100µA | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 30 | V | IC=10mA | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 5 | V | IE=100µA | 1 | ||
| Collector cutoff current | ICBO | 100 | nA | VCB=30V | 1 | ||
| Emitter cut-off current | IEBO | 100 | nA | VEB=4V | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.3 | V | IC=1A,IB=100mA | 1 | ||
| Base-emitter voltage | VBE(ON) | 1 | V | IC=1A,VCE=2V | 1 | ||
| Static forward current transfer ratio | hFE | 100 | IC=1mA,VCE=2V | 1 | |||
| Static forward current transfer ratio | hFE | 100 | 300 | IC=1A,VCE=2V | 1 | ||
| Static forward current transfer ratio | hFE | 60 | IC=2A,VCE=2V | 1 | |||
| Static forward current transfer ratio | hFE | 20 | IC=4A,VCE=2V | 1 | |||
| Current-gain-bandwidth product | fT | 150 | MHz | IC=50mA,VCE=10V,f=100MHz | 1 | ||
| Output capacitance | Cobo | 10 | pF | VCB=10V,f=1MHz | 1 | ||
| Collector-base voltage | VCBO | 50 | V | Ta = 25 | 1 | ||
| Collector-emitter voltage | VCEO | 30 | V | Ta = 25 | 1 | ||
| Emitter-base voltage | VEBO | 5 | V | Ta = 25 | 1 | ||
| Peak collector current | ICM | 4 | A | Ta = 25 | 1 | ||
| Collector current | IC | 1 | A | Ta = 25 | 1 | ||
| Base current | IB | 200 | mA | Ta = 25 | 1 | ||
| Power dissipation | Ptot | 500 | mW | Ta = 25 | 1 | ||
| Operating and storage temperature range | Tj,Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
FMMT489 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
fmmt489-etched.step/fmmt489-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fmmt489.step/fmmt489.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor(SLKORMICRO Elec.) datasheet (1 pp, sha256
8dd87b19af2fc793, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).