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2SD1664G-R-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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2SD1664G-R-AB3-R

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

2SD1664G-R-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 gives emitter-base breakdown voltage BVEBO of 5 V and emitter cut-off current IEBO of 0.5 μA max at VEB = 4 V.
2 C passive Collector terminal of the NPN transistor; absolute maximum collector-base voltage VCBO is 40 V and DC collector current is 1 A (2 A pulse, duty 1/2, PW 20 ms).
3 E passive Emitter terminal of the NPN transistor; absolute maximum collector-emitter voltage VCEO is 32 V and emitter-base voltage VEBO is 5 V.

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-Emitter Saturation Voltage VCE(SAT) 0.15 0.4 V IC/IB=500mA /50mA 3
Collector Base Breakdown Voltage BVCBO 40 V IC= 50μA 3
Collector Emitter Breakdown Voltage BVCEO 32 V IC= 1mA 3
Emitter Base Breakdown Voltage BVEBO 5 V IE=50μA 3
Collector Cut-Off Current ICBO 0.5 μA VCB=20V 3
Emitter Cut-Off Current IEBO 0.5 μA VEB= 4V 3
DC Current Gain (rank R, per classification table) hFE 180 390 VCE= 3V, Ic= 100mA 3
Transition Frequency fT 150 MHz VCE=5V, IE=-50mA, f=100MHz 3
Output Capacitance Cob 15 pF VCB= 10V, IE= 0A, f=1MHz 3
Collector-Base Voltage VCBO 40 V 3
Collector-Emitter Voltage VCEO 32 V 3
Emitter-Base Voltage VEBO 5 V 3
Collector Current DC IC 1 A DC 3
Collector Current Pulse IC 2 A Duty=1/2, PW=20ms 3
Collector Power Dissipation (SOT-89) PC 0.5 W SOT-89 3
Junction Temperature TJ 150 °C 3
Storage Temperature TSTG -55 150 °C 3

CAD (KiCad official)

  • Symbol: 2SD1664G-R-AB3-R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sd1664g-r-ab3-r-etched.step / 2sd1664g-r-ab3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sd1664g-r-ab3-r.step / 2sd1664g-r-ab3-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (5 pp, sha256 e80e0db566df10d8, retrieved 2026-10-17, 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