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BC33725TA

Public Made by Adom

by adom

onsemi Bipolar Transistors - BJT, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BC33725TA

onsemi · Bipolar Transistors - BJT · TO-92-3

BC33725TA from onsemi, in a TO-92-3. 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 Collector passive Collector of the NPN transistor; VCEO 45 V (BC337), IC up to 800 mA DC.
2 Base passive Base of the NPN transistor; emitter-base voltage VEBO max 5 V.
3 Emitter passive Emitter of the NPN transistor; emitter-base breakdown voltage 5 V at IE = 0.1 mA.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-92-3
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
Collector-Emitter Breakdown Voltage BVCEO 45 V IC = 10 mA, IB = 0 (BC337) 3
Collector-Emitter Breakdown Voltage BVCES 50 V IC = 0.1 mA, VBE = 0 (BC337) 3
Emitter-Base Breakdown Voltage BVEBO 5 V IE = 0.1 mA, IC = 0 3
Collector Cut-Off Current ICES 2 100 nA VCE = 45 V, IB = 0 (BC337) 3
DC Current Gain (grade 25) hFE1 160 400 VCE = 1 V, IC = 100 mA 3
DC Current Gain (grade 25) hFE2 100 VCE = 1 V, IC = 300 mA 3
Collector-Emitter Saturation Voltage VCE(sat) 0.7 V IC = 500 mA, IB = 50 mA 3
Base-Emitter On Voltage VBE(on) 1.2 V VCE = 1 V, IC = 300 mA 3
Current Gain Bandwidth Product fT 100 MHz VCE = 5 V, IC = 10 mA, f = 50 MHz 3
Output Capacitance Cob 12 pF VCB = 10 V, IE = 0, f = 1 MHz 3
Collector-Emitter Voltage VCES 50 V BC337, TA = 25°C 2
Collector-Emitter Voltage VCEO 45 V BC337, TA = 25°C 2
Emitter-Base Voltage VEBO 5 V TA = 25°C 2
Collector Current (DC) IC 800 mA TA = 25°C 2
Junction Temperature TJ 150 °C 2
Storage Temperature TSTG -55 150 °C 2
Power Dissipation PD 625 mW TA = 25°C, FR-4 PCB 76 mm x 114 mm x 1.57 mm, minimum land pattern 3
Thermal Resistance, Junction-to-Ambient RθJA 200 °C/W FR-4 PCB 76 mm x 114 mm x 1.57 mm, minimum land pattern 3

CAD (KiCad official)

  • Symbol: BC33725TA
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: bc33725ta-etched.step / bc33725ta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc33725ta.step / bc33725ta.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 458c4e685dcea574, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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