component
MMST5401
Public Made by Adomby adom
HT(Shenzhen Jinyu Semicon) Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownMMST5401
HT(Shenzhen Jinyu Semicon) · Bipolar (BJT) · SOT-323
MMST5401 from HT(Shenzhen Jinyu Semicon), in a SOT-323. 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 PNP transistor, with an emitter-base voltage rating of VEBO = -5 V and emitter-base breakdown of -5 V minimum at IE = -10 µA. |
| 2 | EMITTER | passive | Emitter terminal of the PNP transistor, with a maximum collector current rating of IC = -600 mA and emitter-base voltage limit of -5 V. |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor, rated for collector-base voltage VCBO = -160 V, collector-emitter voltage VCEO = -150 V, and total collector power dissipation of 200 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HT(Shenzhen Jinyu Semicon) |
| Package | SOT-323 |
| 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 | -160 | V | IC=-100µA, IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -150 | V | IC=-1mA, IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -5 | V | IE=-10µA, IC=0 | 1 | ||
| Collector cut-off current | ICBO | -50 | nA | VCB=-120V, IE=0 | 1 | ||
| Emitter cut-off current | IEBO | -50 | nA | VEB=-3V, IC=0 | 1 | ||
| DC current gain | hFE | 50 | VCE=-5V, IC=-1mA | 1 | |||
| DC current gain | hFE | 100 | 300 | VCE=-5V, IC=-10mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.5 | V | IC=-50mA, IB=-5mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.2 | V | IC=-10mA, IB=-1mA | 1 | ||
| Base-emitter saturation voltage | VBE(sat) | -1 | V | IC=-50mA, IB=-5mA | 1 | ||
| Transition frequency | fT | 100 | MHz | VCE=-10V, IC=-10mA, f=100MHz | 1 | ||
| Collector output capacitance | Cob | 6 | pF | VCB=-10V, IE=0, f=1MHz | 1 | ||
| Collector-base voltage | VCBO | -160 | V | Ta=25℃ | 1 | ||
| Collector-emitter voltage | VCEO | -150 | V | Ta=25℃ | 1 | ||
| Emitter-base voltage | VEBO | -5 | V | Ta=25℃ | 1 | ||
| Collector current | IC | -600 | mA | Ta=25℃ | 1 | ||
| Collector power dissipation | PC | 200 | mW | Ta=25℃ | 1 | ||
| Operation junction and storage temperature range | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal resistance from junction to ambient | RΘJA | 625 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
MMST5401 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
mmst5401-etched.step/mmst5401-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmst5401.step/mmst5401.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HT(Shenzhen Jinyu Semicon) datasheet (4 pp, sha256
b1e63bfdbd256f42, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).