# BCX56-16TF

**Nexperia** · Bipolar (BJT) · SOT-89-3

BCX56-16TF from Nexperia, in a SOT-89-3. 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 | E | passive | Emitter terminal of the NPN transistor; the datasheet gives an emitter-base breakdown voltage of 5 V minimum and a VEBO rating of 5 V maximum (open collector). |
| 2 | C | passive | Collector terminal of the NPN transistor; the limits are IC of 1 A maximum and ICM of 2 A peak for single pulses with tp ≤ 1 ms, with VCEO of 80 V maximum (open base). |
| 3 | B | passive | Base terminal of the NPN transistor; the limits are IB of 200 mA maximum and IBM of 300 mA peak for single pulses with tp ≤ 1 ms. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-89-3 |
| 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 voltage | VCBO |  |  | 100 | V | open emitter | 3 |
| Collector-emitter voltage | VCEO |  |  | 80 | V | open base | 3 |
| Emitter-base voltage | VEBO |  |  | 5 | V | open collector | 3 |
| Collector current | IC |  |  | 1 | A |  | 3 |
| Peak collector current | ICM |  |  | 2 | A | single pulse; tp ≤ 1 ms | 3 |
| Base current | IB |  |  | 200 | mA |  | 3 |
| Peak base current | IBM |  |  | 300 | mA | single pulse; tp ≤ 1 ms | 3 |
| Total power dissipation | Ptot |  |  | 500 | mW | Tamb ≤ 25 °C; FR4 PCB, single-sided copper, tin-plated, standard footprint [1] | 3 |
| Total power dissipation | Ptot |  |  | 800 | mW | Tamb ≤ 25 °C; FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm2 [2] | 3 |
| Total power dissipation | Ptot |  |  | 1100 | mW | Tamb ≤ 25 °C; FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 6 cm2 [3] | 3 |
| Junction temperature | Tj |  |  | 150 | °C |  | 3 |
| Ambient temperature | Tamb | -55 |  | 150 | °C |  | 3 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 3 |
| Thermal resistance from junction to ambient in free air | Rth(j-a) |  |  | 250 | K/W | FR4 PCB, single-sided copper, tin-plated, standard footprint [1] | 4 |
| Thermal resistance from junction to ambient in free air | Rth(j-a) |  |  | 157 | K/W | FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm2 [2] | 4 |
| Thermal resistance from junction to ambient in free air | Rth(j-a) |  |  | 114 | K/W | FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 6 cm2 [3] | 4 |
| Collector-base breakdown voltage | V(BR)CBO | 100 |  |  | V | IC = 100 µA; IE = 0 A | 5 |
| Collector-emitter breakdown voltage | V(BR)CEO | 80 |  |  | V | IC = 2 mA; IE = 0 A | 5 |
| Emitter-base breakdown voltage | V(BR)EBO | 5 |  |  | V | IE = 100 µA; IC = 0 A | 5 |
| Collector-base cut-off current | ICBO |  |  | 100 | nA | VCB = 30 V; IE = 0 A | 5 |
| Collector-base cut-off current | ICBO |  |  | 10 | µA | VCB = 30 V; IE = 0 A; Tj = 150 °C | 5 |
| Emitter-base cut-off current | IEBO |  |  | 100 | nA | VEB = 5 V; IC = 0 A | 5 |
| DC current gain | hFE | 63 |  |  |  | VCE = 2 V; IC = 5 mA (BCX56T, -10T, -16T) | 5 |
| DC current gain | hFE | 40 |  |  |  | VCE = 2 V; IC = 500 mA [1] | 5 |
| DC current gain | hFE | 100 |  | 250 |  | VCE = 2 V; IC = 150 mA [1] (BCX56-16T) | 5 |
| Collector-emitter saturation voltage | VCEsat |  |  | 500 | mV | IC = 500 mA; IB = 50 mA [1] | 5 |
| Base-emitter voltage | VBE |  |  | 1 | V | VCE = 2 V; IC = 500 mA [1] | 5 |

## CAD (KiCad official)

- Symbol: `BCX56-16TF`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `bcx56-16tf-etched.step` / `bcx56-16tf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bcx56-16tf.step` / `bcx56-16tf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588913028675358720) (12 pp, sha256 `84b4b88c2fc85dd4`, retrieved 2026-10-09, 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](docs/bcx56-16tf-datasheet.pdf)