component
AD-BCP51-16
Public Made by Adomby adom
Changjing Bipolar (BJT), SOT-223. 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.
Contents
README
markdownAD-BCP51-16
Changjing · Bipolar (BJT) · SOT-223
AD-BCP51-16 from Changjing, in a SOT-223. 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 of the PNP transistor, rated for -100 mA continuous (-200 mA peak) base current and -5 V maximum emitter-base voltage. |
| 2 | COLLECTOR | passive | Collector of the PNP transistor, rated for -1 A continuous (-2 A peak) current, with -45 V VCEO and VCBO for the AD-BCP51 type. |
| 3 | EMITTER | passive | Emitter of the PNP transistor, with VEBO limited to -5 V relative to the base. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-223 |
| 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 | -45 | V | 2 | |||
| Collector-emitter voltage | VCEO | -45 | V | 2 | |||
| Emitter-base voltage | VEBO | -5 | V | 2 | |||
| Collector continuous current | IC | -1 | A | 2 | |||
| Peak pulsed collector current | ICM | -2 | A | 2 | |||
| Base continuous current | IB | -100 | mA | 2 | |||
| Peak pulsed base current | IBM | -200 | mA | 2 | |||
| Collector power dissipation | PC | 1.5 | W | Footnote 1: maximum allowed temperature Tj = 25°C | 2 | ||
| Thermal resistance from junction to ambient | RθJA | 94 | °C/W | Footnote 2: mounted on 1 inch2 FR-4 board, 1oz copper, still air, Ta = 25°C | 2 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 2 | ||
| Collector-base breakdown voltage (AD-BCP51) | V(BR)CBO | -45 | V | IC = -0.1mA, IE = 0A | 2 | ||
| Collector-emitter breakdown voltage (AD-BCP51) | V(BR)CEO | -45 | V | IC = -10mA, IB = 0A | 2 | ||
| Base-emitter breakdown voltage | V(BR)EBO | -5 | V | IE = -10µA, IC = 0A | 2 | ||
| Collector-base cut-off current | ICBO | -100 | nA | VCB = -30V, IE = 0A | 2 | ||
| DC current gain | hFE(1) | 25 | VCE = -2V, IC = -5mA | 2 | |||
| DC current gain (rank -16 range) | hFE(2) | 100 | 250 | VCE = -2V, IC = -150mA | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.5 | V | IC = -500mA, IB = -50mA | 2 | ||
| Base-emitter voltage | VBE | -1 | V | IC = -500mA, VCE = -2V | 2 | ||
| Transition frequency | fT | 100 | MHz | VCE = -10V, IC = -50mA, f = 100MHz | 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 |
|---|---|---|---|---|
| housing | PC | Peak pulsed base current IBM -200 mA Collector power dissipation PC | 2 |
CAD (KiCad official)
- Symbol:
AD-BCP51-16 - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
ad-bcp51-16-etched.step/ad-bcp51-16-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-bcp51-16.step/ad-bcp51-16.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
1eeae39641cfe66d, retrieved 2026-10-17, 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).