component
AD-BCX54-16
Public Made by Adomby adom
Changjing Bipolar (BJT), SOT-89-3L. 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
markdownAD-BCX54-16
Changjing · Bipolar (BJT) · SOT-89-3L
AD-BCX54-16 from Changjing, in a SOT-89-3L. 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 NPN transistor; continuous base current is rated 100 mA (peak 200 mA) and VEBO is 5 V max. |
| 2 | COLLECTOR | passive | Collector of the NPN transistor, rated 1 A continuous (2 A peak), with VCEO of 45 V for the AD-BCX54 series; also connected to the tab on the package. |
| 3 | EMITTER | passive | Emitter of the NPN transistor, with a VEBO limit of 5 V to the base. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-89-3L |
| 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 (AD-BCX54) | V(BR)CBO | 45 | V | IC = 0.1mA, IE = 0A | 2 | ||
| Collector-emitter breakdown voltage (AD-BCX54) | 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 | ||
| Emitter-base cut-off current | IEBO | 100 | nA | VEB = 5V, IC = 0A | 2 | ||
| DC current gain | hFE(1) | 40 | VCE = 2V, IC = 5mA | 2 | |||
| DC current gain, rank -16 range | hFE(2) | 100 | 250 | VCE = 2V, IC = 150mA; rank -16 (classification range 100 ~ 250) | 2 | ||
| DC current gain | hFE(3) | 25 | VCE = 2V, IC = 500mA | 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 | ||
| Collector-base voltage (AD-BCX54) | VCBO | 45 | V | 2 | |||
| Collector-emitter voltage (AD-BCX54) | VCEO | 45 | V | 2 | |||
| Emitter-base voltage | VEBO | 5 | V | 2 | |||
| Collector continuous current | IC | 1 | A | Tj = 25°C (note 1) | 2 | ||
| Peak pulsed collector current | ICM | 2 | A | 2 | |||
| Base continuous current | IB | 100 | mA | 2 | |||
| Peak pulsed base current | IBM | 200 | mA | tp < 1ms | 2 | ||
| Collector power dissipation | PC | 500 | mW | Tj = 25°C (note 1) | 2 | ||
| Thermal resistance from junction to ambient | RθJA | 250 | °C/W | Mounted on 1 inch² FR-4 board, 1oz copper, still air, Ta = 25°C (note 2) | 2 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 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 |
|---|---|---|---|---|
| housing | PC | Peak pulsed base current (tp < 1ms) IBM 200 mA Collector power dissipation PC | 2 |
CAD (KiCad official)
- Symbol:
AD-BCX54-16 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3L (KiCad packages3D, STEP)
- 3D model files:
ad-bcx54-16-etched.step/ad-bcx54-16-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-bcx54-16.step/ad-bcx54-16.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
b58adcf009a27c96, retrieved 2026-11-05, 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).