component
BC846AQ-7-F
Public Made by Adomby adom
Diodes Incorporated Bipolar Transistors - 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
markdownBC846AQ-7-F
Diodes Incorporated · Bipolar Transistors - BJT · SOT-23
BC846AQ-7-F from Diodes Incorporated, 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; the top-view pin-out drawing shows B at the bottom-left lead, and the device is an NPN transistor with VEBO of 6.0 V (BC846/BC847) or 5.0 V (BC848). |
| 2 | E | passive | Emitter; the top-view pin-out drawing shows E at the bottom-right lead, with peak emitter current IEM of 200 mA. |
| 3 | C | passive | Collector; the top-view pin-out drawing shows C as the single lead on the top side, with continuous collector current IC of 100 mA and peak ICM of 200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | Transistors |
| 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 (BC846A/B column) | BVCBO | 80 | V | IC = 10µA | 4 | ||
| Collector-Emitter Breakdown Voltage (BC846A/B column) | BVCEO | 65 | V | IC = 10mA | 4 | ||
| Emitter-Base Breakdown Voltage (BC846A/B column) | BVEBO | 6 | V | IE = 1µA | 4 | ||
| Collector Cutoff Current | ICBO | 15 | nA | VCB = 30V | 4 | ||
| Collector Cutoff Current | ICBO | 5 | µA | VCB = 30V, TJ = +150°C | 4 | ||
| Collector Emitter Cutoff Current (BC846A/B column) | ICES | 15 | nA | VCE = 80V | 4 | ||
| Emitter Base Cutoff Current | IEBO | 100 | nA | VEB = 5V | 4 | ||
| DC Current Gain (BC846A/BC847A/BC848A group) | hFE | 110 | 180 | 220 | IC = 2.0mA, VCE = 5V | 4 | |
| Collector-Emitter Saturation Voltage | VCE(sat) | 90 | 250 | mV | IC = 10mA, IB = 0.5mA | 4 | |
| Collector-Emitter Saturation Voltage | VCE(sat) | 200 | 600 | mV | IC = 100mA, IB = 5.0mA | 4 | |
| Base-Emitter Turn-On Voltage | VBE(on) | 580 | 660 | 700 | mV | IC = 2mA, VCE = 5V | 4 |
| Base-Emitter Turn-On Voltage | VBE(on) | 770 | mV | IC = 10mA, VCE = 5V | 4 | ||
| Transition Frequency | fT | 100 | 300 | MHz | VCE = 5V, IC = 10mA, f = 100MHz | 4 | |
| Noise Figure | NF | 2 | 10 | dB | VCE = 5V, IC = 200µA, RS = 2kΩ, f = 1kHz, Δf = 200Hz | 4 | |
| Collector-Base Voltage | VCBO | 80 | V | 2 | |||
| Collector-Emitter Voltage | VCEO | 65 | V | 2 | |||
| Emitter-Base Voltage | VEBO | 6 | V | 2 | |||
| Continuous Collector Current | IC | 100 | mA | 2 | |||
| Peak Collector Current | ICM | 200 | mA | 2 | |||
| Peak Emitter Current | IEM | 200 | mA | 2 | |||
| Electrostatic Discharge - Human Body Model | ESD HBM | 4000 | V | JEDEC Class 3A | 2 | ||
| Electrostatic Discharge - Machine Model | ESD MM | 400 | V | JEDEC Class C | 2 | ||
| Power Dissipation | PD | 310 | mW | Note 5 (minimum recommended pad layout, 1oz Cu, single-sided FR4) | 2 | ||
| Power Dissipation | PD | 350 | mW | Note 6 (15mm x 15mm 1oz Cu) | 2 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 403 | °C/W | Note 5 (minimum recommended pad layout, 1oz Cu) | 2 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 357 | °C/W | Note 6 (15mm x 15mm 1oz Cu) | 2 | ||
| Thermal Resistance, Junction to Leads | RθJL | 350 | °C/W | Note 7 (junction to solder point) | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 2 |
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 |
|---|---|---|---|---|
| contacts | tin | • Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 | 1 |
CAD (land: KiCad; 3D: generated from the datasheet)
- Symbol:
BC846AQ-7-F - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.9 mm, terminals on the pads, 1.025 mm tall, datasheet A, nominal). 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:
bc846aq-7-f-etched.step/bc846aq-7-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bc846aq-7-f.step/bc846aq-7-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (7 pp, sha256
4c2c7141238f9de1, retrieved 2026-11-12, tier: manufacturer) - 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: land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).