component
BCX53SQ-16
Public Made by Adomby adom
PJSEMI Bipolar Transistors - BJT, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 1d ago |
| viewers | 1d ago |
| bcx53sq-16-etched.glb | 1d ago |
| bcx53sq-16-etched.step | 1d ago |
| bcx53sq-16-hero.glb | 1d ago |
| bcx53sq-16-hero.overlay.json | 1d ago |
| bcx53sq-16.glb | 1d ago |
| bcx53sq-16.kicad_mod | 1d ago |
| bcx53sq-16.kicad_sym | 1d ago |
| bcx53sq-16.lbr | 1d ago |
| bcx53sq-16.step | 1d ago |
| package.json | 1d ago |
| page.json | 1d ago |
| README.md | 1d ago |
BCX53SQ-16
PJSEMI · Bipolar Transistors - BJT · SOT-89
BCX53SQ-16 from PJSEMI, in a SOT-89. 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 terminal of the PNP transistor, with VEBO limited to -5 V and hFE of 100 to 250 for the BCX53SQ-16 at VCE = -2 V, IC = -150 mA. |
| 2 | Collector | passive | Collector terminal, rated for VCBO -100 V, VCEO -80 V, continuous IC -1 A and peak ICM -1.5 A. |
| 3 | Emitter | passive | Emitter terminal of the PNP transistor, the reference for the -5 V maximum emitter-base voltage (VEBO). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| DC current gain (BCX53SQ-16 variant) | hFE | 100 | 250 | - | VCE = -2 V, IC = -150 mA | 1 | |
| DC current gain | hFE | 40 | - | VCE = -2 V, IC = -5 mA | 1 | ||
| DC current gain | hFE | 25 | - | VCE = -2 V, IC = -500 mA | 1 | ||
| Collector base cutoff current | -ICBO | 100 | nA | VCB = -30 V | 1 | ||
| Emitter base cutoff current | -IEBO | 100 | nA | VEB = -5 V | 1 | ||
| Collector base breakdown voltage | -V(BR)CBO | 100 | V | IC = -100 µA | 1 | ||
| Collector emitter breakdown voltage | -V(BR)CEO | 80 | V | IC = -1 mA | 1 | ||
| Emitter base breakdown voltage | -V(BR)EBO | 5 | V | IE = -100 µA | 1 | ||
| Collector emitter saturation voltage | -VCE(sat) | 0.5 | V | IC = -500 mA, IB = -50 mA | 1 | ||
| Base emitter voltage | -VBE | 1 | V | VCE = -2 V, IC = -500 mA | 1 | ||
| Collector base voltage | VCBO | -100 | V | Ta = 25 ℃ | 1 | ||
| Collector emitter voltage | VCEO | -80 | V | Ta = 25 ℃ | 1 | ||
| Emitter base voltage | VEBO | -5 | V | Ta = 25 ℃ | 1 | ||
| Collector current | IC | -1 | A | Ta = 25 ℃ | 1 | ||
| Peak collector current | ICM | -1.5 | A | Ta = 25 ℃ | 1 | ||
| Total power dissipation | Ptot | 0.5 | W | Note 1: FR4 PCB, single-sided copper, tin-plated, standard footprint | 1 | ||
| Total power dissipation | Ptot | 1.3 | W | Note 2: FR4 PCB, single-sided copper, tin-plated, collector mounting pad 6 cm2 | 1 | ||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BCX53SQ-16 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
bcx53sq-16-etched.step/bcx53sq-16-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bcx53sq-16.step/bcx53sq-16.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (3 pp, sha256
107f24a9039b2340, retrieved 2026-11-04, 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).