component
BCX56-16U
Public Made by Adomby adom
ST Semtech Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| bcx56-16u-etched.glb | 16d ago |
| bcx56-16u-etched.step | 16d ago |
| bcx56-16u-hero.glb | 16d ago |
| bcx56-16u-hero.overlay.json | 16d ago |
| bcx56-16u.glb | 16d ago |
| bcx56-16u.kicad_mod | 16d ago |
| bcx56-16u.kicad_sym | 16d ago |
| bcx56-16u.lbr | 16d ago |
| bcx56-16u.step | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| README.md | 16d ago |
BCX56-16U
ST Semtech · Bipolar (BJT) · SOT-89
BCX56-16U from ST Semtech, in a SOT-89. 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; drives the transistor, with VEBO max 5 V and IEBO max 100 nA at VEB = 5 V. |
| 2 | C | passive | Collector; VCEO 80 V, VCBO 100 V, IC 1 A continuous and 1.5 A peak, and connected to the SOT-89 tab/mounting pad (6 cm2 collector pad gives Ptot 1.3 W). |
| 3 | E | passive | Emitter; current return terminal of the NPN transistor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| DC Current Gain (at VCE = 2 V, IC = 150 mA) | hFE | 100 | 250 | VCE = 2 V, IC = 150 mA | 1 | ||
| Collector Base Cutoff Current | ICBO | 100 | nA | VCB = 30 V | 1 | ||
| Emitter Base Cutoff Current | IEBO | 100 | nA | VEB = 5 V | 1 | ||
| Collector Base Breakdown Voltage | V(BR)CBO | 100 | V | IC = 100 µA | 1 | ||
| Collector Emitter Breakdown Voltage | V(BR)CEO | 80 | V | IC = 1 mA | 1 | ||
| Emitter Base Breakdown Voltage | V(BR)EBO | 5 | V | IE = 100 µA | 1 | ||
| Collector Emitter Saturation Voltage | VCE(sat) | 0.5 | V | IC = 500 mA, IB = 50 mA | 1 | ||
| Base Emitter Voltage | VBE | 1 | V | VCE = 2 V, IC = 500 mA | 1 | ||
| Transition Frequency | fT | 100 | MHz | VCE = 5 V, IC = 50 mA, f = 100 MHz | 1 | ||
| Collector Emitter Voltage (absolute maximum) | VCEO | 80 | V | 1 | |||
| Collector Base Voltage (absolute maximum) | VCBO | 100 | V | 1 | |||
| Emitter Base Voltage (absolute maximum) | VEBO | 5 | V | 1 | |||
| Collector Current | IC | 1 | A | 1 | |||
| Peak Collector Current | ICM | 1.5 | A | 1 | |||
| Total Power Dissipation | Ptot | 0.5 | W | Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint (note 1) | 1 | ||
| Total Power Dissipation | Ptot | 1.3 | W | Device mounted on FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 6 cm2 (note 2) | 1 | ||
| Junction Temperature | Tj | 150 | ℃ | 1 | |||
| Storage Temperature Range | Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BCX56-16U - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
bcx56-16u-etched.step/bcx56-16u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bcx56-16u.step/bcx56-16u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST Semtech datasheet (3 pp, sha256
5e5cbb18f054103e, 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).