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Contents

README

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BCX5210TA

Diodes Incorporated · Bipolar Transistors - BJT · SOT-89

BCX5210TA from Diodes Incorporated, 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; the datasheet's top-view pin-out shows it as the bottom lead, with IB rated -100 mA continuous and -200 mA peak, and VEBO of -5 V.
2 C passive Collector (centre lead, also connected to the exposed collector tab); the datasheet rates IC at -1 A continuous and -2 A peak, with VCEO of -45 V for BCX51, -60 V for BCX52 and -80 V for BCX53.
3 E passive Emitter; the datasheet's top-view pin-out shows it as the top lead, with VEBO of -5 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-89
Category Triode/MOS Tube/Transistor
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 (BCX52) BVCBO -60 V IC = -100µA 4
Collector-Emitter Breakdown Voltage (BCX52) BVCEO -60 V IC = -10mA 4
Emitter-Base Breakdown Voltage BVEBO -5 V IE = -10µA 4
Collector Cut-Off Current ICBO -0.1 μA VCB = -30V 4
Collector Cut-Off Current (TJ = +150°C) ICBO -20 μA VCB = -30V, TJ = +150°C 4
Emitter Cut-Off Current IEBO -20 nA VEB = -5V 4
DC Current Gain (all versions) hFE 25 IC = -5mA, VCE = -2V 4
DC Current Gain (all versions) hFE 40 IC = -150mA, VCE = -2V 4
DC Current Gain (gain group 10) hFE 63 160 IC = -150mA, VCE = -2V 4
Collector-Emitter Saturation Voltage VCE(sat) -0.5 V IC = -500mA, IB = -50mA 4
Base-Emitter Turn-On Voltage VBE(on) -1 V IC = -500mA, VCE = -2V 4
Transition Frequency fT 150 MHz IC = -50mA, VCE = -10V, f = 100MHz 4
Output Capacitance Cobo 25 pF VCB = -10V, f = 1MHz 4
Collector-Base Voltage (BCX52) VCBO -60 V 2
Collector-Emitter Voltage (BCX52) VCEO -60 V 2
Emitter-Base Voltage VEBO -5 V 2
Continuous Collector Current IC -1 A 2
Peak Pulse Collector Current (Single pulse) ICM -2 A Single pulse 2
Continuous Base Current IB -100 mA 2
Peak Pulse Base Current (Single pulse) IBM -200 mA Single pulse 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 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 (Note 5) PD 1 W Note 5: 15mm x 15mm 1oz copper, single-sided FR4, still air 2
Power Dissipation (Note 6) PD 1.5 W Note 6: 25mm x 25mm 1oz copper, still air 2
Power Dissipation (Note 7) PD 2 W Note 7: 50mm x 50mm 1oz copper, still air 2
Thermal Resistance, Junction to Ambient (Note 5) RθJA 125 °C/W Note 5: 15mm x 15mm 1oz copper, still air 2
Thermal Resistance, Junction to Ambient (Note 6) RθJA 83 °C/W Note 6: 25mm x 25mm 1oz copper, still air 2
Thermal Resistance, Junction to Ambient (Note 7) RθJA 60 °C/W Note 7: 50mm x 50mm 1oz copper, still air 2
Thermal Resistance, Junction to Lead (Note 8) RθJL 13 °C/W Junction to solder-point on exposed collector pad 2
Thermal Resistance, Junction to Case (Note 9) RθJC 27 °C/W Junction to top of case 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: Matte Tin Finish Leads; Solderable per MIL-STD-202 Method 208 1

CAD (KiCad official)

  • Symbol: BCX5210TA
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: bcx5210ta-etched.step / bcx5210ta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcx5210ta.step / bcx5210ta.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 80b759302f17b3af, retrieved 2026-10-25, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF