component
BCX56SQ-16
Public Made by Adomby adom
PJSEMI Bipolar (BJT), SOT-89. 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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README
markdownBCX56SQ-16
PJSEMI · Bipolar (BJT) · SOT-89
BCX56SQ-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 | B | input | Base; emitter-base voltage VEBO max 5 V, with hFE 100 to 250 at VCE = 2 V, IC = 150 mA for the -16 grade. |
| 2 | C | passive | Collector (also the tab); VCBO 100 V, VCEO 80 V, IC 1 A continuous and 1.5 A peak. |
| 3 | E | passive | Emitter; junction temperature up to 150 ℃ and VCE(sat) max 0.5 V at IC = 500 mA, IB = 50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| DC current gain (BCX56SQ-16 group) | hFE | 40 | VCE = 2 V, IC = 5 mA | 1 | |||
| DC current gain (BCX56SQ-16 group) | hFE | 100 | 250 | VCE = 2 V, IC = 150 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 | ||
| Transition Frequency | fT | 100 | MHz | VCE = 5 V, IC = 50 mA, f = 100 MHz | 1 | ||
| Collector Base Voltage | VCBO | 100 | V | 1 | |||
| Collector Emitter Voltage | VCEO | 80 | V | 1 | |||
| Emitter Base Voltage | VEBO | 5 | V | 1 | |||
| Collector Current | IC | 1 | A | 1 | |||
| Peak Collector Current | ICM | 1.5 | A | 1 | |||
| Total Power Dissipation | Ptot | 0.5 | W | FR4 PCB, single-sided copper, standard footprint (note 1) | 1 | ||
| Total Power Dissipation | Ptot | 1.3 | W | FR4 PCB, single-sided copper, 6 cm2 collector mounting pad (note 2) | 1 | ||
| Junction Temperature | TJ | 150 | ℃ | 1 | |||
| Storage Temperature Range | Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BCX56SQ-16 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
bcx56sq-16-etched.step/bcx56sq-16-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bcx56sq-16.step/bcx56sq-16.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (3 pp, sha256
723216686fdb441b, 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).