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2SD1898G-Q-AB3-R

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UTC Unisonic Tech Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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2SD1898G-Q-AB3-R

UTC Unisonic Tech · Bipolar (BJT) · SOT-89

2SD1898G-Q-AB3-R from UTC Unisonic Tech, 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 terminal of the NPN transistor; the datasheet's absolute maximum emitter-base voltage VEBO is 5 V.
2 C passive Collector terminal of the NPN transistor; the absolute maximum collector-base voltage VCBO is 100 V and DC collector current IC is 1 A.
3 E passive Emitter terminal of the NPN transistor; the emitter-base breakdown voltage BVEBO is specified as 5 V at IE=50µA.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
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
Collector Base Breakdown Voltage BVCBO 100 V IC= 50μA 2
Collector Emitter Breakdown Voltage BVCEO 80 V IC= 1mA 2
Emitter Base Breakdown Voltage BVEBO 5 V IE=50μA 2
Collector Cut-Off Current ICBO 1 μA VCB=80V, IE=0A 2
Emitter Cut-Off Current IEBO 1 μA VEB=4V, IC=0A 2
DC Current Transfer Ratio hFE 82 390 VCE=3V, IC= 0.5A 2
DC Current Transfer Ratio, rank Q classification range hFE 120 270 2
Collector-Emitter Saturation Voltage VCE(SAT) 0.15 0.4 V IC=500mA, IB= 20mA 2
Transition Frequency fT 100 MHz VCE=10V, IE= -50mA, f=100MHz 2
Output Capacitance COB 20 pF VCB= 10V, IE= 0A, f=1MHz 2
Collector-Base Voltage VCBO 100 V TA=25°C 2
Collector-Emitter Voltage VCEO 80 V TA=25°C 2
Emitter-Base Voltage VEBO 5 V TA=25°C 2
Collector Current (DC) IC 1 A TA=25°C 2
Collector Current (PULSE) ICP 2 A Duty = 1/2, PW = 200ms (Note 2) 2
Collector Power Dissipation, SOT-89 PC 500 mW Mounted on 40×40×0.7 mm ceramic board (Note 3) 2
Junction Temperature TJ 150 °C 2
Storage Temperature TSTG -55 150 °C 2

CAD (KiCad official)

  • Symbol: 2SD1898G-Q-AB3-R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sd1898g-q-ab3-r-etched.step / 2sd1898g-q-ab3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sd1898g-q-ab3-r.step / 2sd1898g-q-ab3-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (3 pp, sha256 da9ee68c37c6267a, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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