component
HFMMT718TA
Public Made by Adomby adom
HXY MOSFET Bipolar (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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Contents
README
markdownHFMMT718TA
HXY MOSFET · Bipolar (BJT) · SOT-23
HFMMT718TA from HXY MOSFET, 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 | B | input | Base of the PNP transistor; Emitter-Base voltage limit is -7 V and base current limit is -0.5 A. |
| 2 | E | passive | Emitter of the PNP transistor; Emitter-Base voltage limit is -7 V. |
| 3 | C | passive | Collector of the PNP transistor; Collector-Emitter voltage -20 V, Collector-Base voltage -20 V, collector current -1.5 A maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| 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 | -20 | V | IC=-100μA, IE=0 | 2 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -20 | V | IC= -10mA, IB=0 | 2 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -7 | V | IE= -100μA, IC=0 | 2 | ||
| Collector cut-off current | ICBO | -0.1 | μA | VCB=-15V, IE=0 | 2 | ||
| Emitter cut-off current | IEBO | -0.1 | μA | VEB= -4V, IC=0 | 2 | ||
| DC current gain | hFE(1) | 300 | VCE= -2V, IC=-10mA | 2 | |||
| DC current gain | hFE(3) | 150 | VCE=-2V, IC=-2A | 2 | |||
| DC current gain | hFE(4) | 35 | VCE=-2V, IC=-4A | 2 | |||
| Collector-emitter saturation voltage | VCE(sat) (1) | -40 | mV | IC=-0.1A, IB=-10mA | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) (2) | -200 | mV | IC=-1A, IB=-20mA | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) (3) | -220 | mV | IC=-1.5A, IB=-50mA | 2 | ||
| Base-emitter saturation voltage | VBE(sat) | -1 | V | IC=-1.5A, IB= -50mA | 2 | ||
| Base-emitter voltage | VBE(on) | -1 | V | VCE=-2V, IC=-2A | 2 | ||
| Transition frequency | fT | 150 | MHz | VCE=-10V,IC=-50mA, f=100MHZ | 2 | ||
| Collector output capacitance | Cob | 30 | pF | VCB=-10V,f=1MHZ | 2 | ||
| Turn-on Time | t(on) | 40 | ns | 2 | |||
| Turn-off Time | t(off) | 670 | ns | VCC=-10V, IC=-1A, IB1=IB2=-20mA | 2 | ||
| Collector-base voltage | VCBO | -20 | V | Ta=25℃ unless otherwise noted | 1 | ||
| Collector-emitter voltage | VCEO | -20 | V | Ta=25℃ unless otherwise noted | 1 | ||
| Emitter-base voltage | VEBO | -7 | V | Ta=25℃ unless otherwise noted | 1 | ||
| Collector current | IC | -1.5 | A | Ta=25℃ unless otherwise noted | 1 | ||
| Base current | IB | -0.5 | A | Ta=25℃ unless otherwise noted | 1 | ||
| Collector power dissipation | PC | 350 | mW | Ta=25℃ unless otherwise noted | 1 | ||
| Operation junction and storage temperature range | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal resistance from junction to ambient | RΘJA | 500 | ℃/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PC | IB Base -0.5 A PC Collector Power Dissipation 350 | 1 |
CAD (KiCad official)
- Symbol:
HFMMT718TA - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
hfmmt718ta-etched.step/hfmmt718ta-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hfmmt718ta.step/hfmmt718ta.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (5 pp, sha256
0e1ae2dc04508aa2, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).