# BC846BHE3-TP

**MCC(Micro Commercial Components)** · Bipolar (BJT) · SOT-23

BC846BHE3-TP from MCC(Micro Commercial Components), in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | B | input | Base of the NPN transistor; the Internal Structure drawing shows B at the bottom left, and the datasheet gives VEBO of 6 V maximum. |
| 2 | E | passive | Emitter of the NPN transistor; the Internal Structure drawing shows E at the bottom right, and the datasheet gives VEBO of 6 V maximum. |
| 3 | C | passive | Collector of the NPN transistor; the Internal Structure drawing shows C at the top, with IC of 100 mA maximum and VCEO of 65 V for the BC846 types. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| 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 | 80 |  |  | V | IC=10μA, IE=0 | 2 |
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 65 |  |  | V | IC=10mA, IB=0 | 2 |
| Emitter-Base Breakdown Voltage | V(BR)EBO | 6 |  |  | V | IE=10μA, IC=0 | 2 |
| Emitter Cutoff Current | IEBO |  |  | 0.1 | μA | VEB=5V, IC=0 | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | 0.25 | V | IC=100mA, IB=5mA | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | 0.5 | V | IC=10mA, IB=0.5mA | 2 |
| Base-Emitter Saturation Voltage | VBE(sat) |  | 0.9 | 1.1 | V | IC=100mA, IB=5mA | 2 |
| Base-Emitter Saturation Voltage | VBE(sat) |  |  | 0.7 | V | IC=10mA, IB=0.5mA | 2 |
| DC Current Gain | hFE | 200 |  | 450 |  | VCE=5V, IC=2mA | 2 |
| Transition Frequency | fT | 100 |  |  | MHz | VCE=5V, IC=10mA, f=100MHz | 2 |
| Collector Output Capacitance | Cob |  |  | 4.5 | pF | VCB=10V, IE=0, f=0.1MHz | 2 |
| Collector Current | IC |  |  | 100 | mA | Maximum rating @ 25°C | 1 |
| Collector Power Dissipation | PC |  |  | 225 | mW | Maximum rating @ 25°C | 1 |
| Collector-Emitter Voltage | VCEO |  |  | 65 | V | Maximum rating @ 25°C | 1 |
| Emitter-Base Voltage | VEBO |  |  | 6 | V | Maximum rating @ 25°C | 1 |
| Collector-Base Voltage | VCBO |  |  | 80 | V | Maximum rating @ 25°C | 1 |
| Operating Junction Temperature Range |  | -55 |  | 150 | ℃ |  | 1 |
| Storage Temperature Range |  | -55 |  | 150 | ℃ |  | 1 |
| Maximum Thermal Resistance Junction to Ambient |  |  |  | 556 | ℃/W | Junction to ambient | 1 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `BC846BHE3-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.92 mm, terminals on the pads, 1.0 mm tall, datasheet A, midpoint of min and max). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `bc846bhe3-tp-etched.step` / `bc846bhe3-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc846bhe3-tp.step` / `bc846bhe3-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/bc846bhe3-tp-datasheet.pdf) (4 pp, sha256 `a6b417ec8966184b`, retrieved 2026-11-12, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/bc846bhe3-tp-datasheet.pdf)