component

KTC3875-Y

Public Made by Adom

by adom

Foshan Blue Rocket Elec Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KTC3875-Y

Foshan Blue Rocket Elec · Bipolar (BJT) · SOT-23

KTC3875-Y from Foshan Blue Rocket Elec, in a SOT-23. 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 Base input Base terminal of the NPN transistor; absolute maximum base current is 30 mA.
2 Emitter passive Emitter terminal of the NPN transistor; absolute maximum emitter-to-base voltage VEBO is 5.0 V.
3 Collector passive Collector terminal of the NPN transistor; absolute maximum ratings are 50 V VCEO and 150 mA collector current.

Key specifications

Parameter Value
Manufacturer Foshan Blue Rocket Elec
Package SOT-23
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 (hFE, all grades) hFE 70 700 VCE=6.0V IC=2.0mA 2
DC Current Gain hFE classification Y range hFE 120 240 1
Collector to Emitter Breakdown Voltage (row symbol printed as VCBO) VCBO 60 V IC=100μA IE=0 2
Collector to Base Breakdown Voltage (row symbol printed as VCEO) VCEO 50 V IC=500μA IB=0 2
Emitter to Base Breakdown Voltage VEBO 5 V IE=100μA IC=0 2
Collector Cut-Off Current ICBO 0.1 μA VCB=60V IE=0 2
Emitter Cut-Off Current IEBO 0.1 μA VEB=5.0V IC=0 2
Collector to Emitter Saturation Voltage VCE(sat) 0.1 0.25 V IC=100mA IB=1.0mA 2
Transition Frequency fT 80 MHz VCE=10V IC=1.0mA 2
Collector output capacitance Cob 2 3.5 pF VCB=10V f=1.0MHz IE=0 2
Noise Figure NF 1 10 dB VCB=6.0V f=1KHz IC=0.1mA Rg=10KΩ 2
Collector to Base Voltage VCBO 60 V Ta=25℃ 2
Collector to Emitter Voltage VCEO 50 V Ta=25℃ 2
Emitter to Base Voltage VEBO 5 V Ta=25℃ 2
Collector Current IC 150 mA Ta=25℃ 2
Base Current IB 30 mA Ta=25℃ 2
Collector Power Dissipation PC 150 mW Ta=25℃ 2
Junction Temperature Tj 150 ℃ Ta=25℃ 2
Storage Temperature Range Tstg -55 150 ℃ Ta=25℃ 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
housing PC Base Current IB 30 mA Collector Power Dissipation PC 150 mW 2

CAD (KiCad official)

  • Symbol: KTC3875-Y
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ktc3875-y-etched.step / ktc3875-y-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ktc3875-y.step / ktc3875-y.glb are the bare package body.

Provenance

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

  • Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256 0fc50cb999333b2b, 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