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Contents

README

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KSC2690AYSTU

onsemi · Audio Amplifiers · TO-126-3

KSC2690AYSTU from onsemi, in a TO-126-3. 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 Emitter passive Emitter terminal of the NPN transistor; the datasheet lists the emitter-base voltage rating as 5 V (VEBO).
2 Collector passive Collector terminal of the NPN transistor; the datasheet rates collector current at 1.2 A DC and 2.5 A pulsed, with collector-base and collector-emitter voltage of 120 V (KSC2690) or 160 V (KSC2690A).
3 Base passive Base terminal of the NPN transistor; the datasheet rates base current at 0.3 A DC.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-126-3
Category Amplifiers/Comparators
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 Voltage (KSC2690A column) VCBO 160 V 2
Collector-Emitter Voltage (KSC2690A column) VCEO 160 V 2
Emitter-Base Voltage VEBO 5 V 2
Collector Current (DC) IC 1.2 A 2
Collector Current (Pulse) ICP 2.5 A PW≤10ms, Duty Cycle≤50% 2
Base Current (DC) IB 0.3 A 2
Collector Dissipation PC 1.2 W Ta=25°C 2
Collector Dissipation PC 20 W TC=25°C 2
Junction Temperature TJ 150 °C 2
Storage Temperature TSTG -55 150 °C 2
Collector Cut-off Current ICBO 1 µA VCB = 120V, IE = 0 2
Emitter Cut-off Current IEBO 1 µA VEB = 3V, IC= 0 2
DC Current Gain (hFE1) hFE1 35 105 VCE = 5V, IC = 5mA 2
DC Current Gain (hFE2) hFE2 60 140 320 VCE = 5V, IC = 0.3A 2
Collector-Emitter Saturation Voltage VCE(sat) 0.4 0.7 V IC = 1A, IB = 0.2A 2
Base-Emitter Saturation Voltage VBE(sat) 1 1.3 V IC = 1A, IB = 0.2A 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 IB Base Current(DC) 0.3 A PC Collector Dissipation (Ta=25°C) 1.2 W 2

CAD (KiCad official)

  • Symbol: KSC2690AYSTU
  • Footprint: Package_TO_SOT_THT:TO-126-3_Vertical
  • 3D model: TO-126-3 (KiCad packages3D, STEP)
  • 3D model files: ksc2690aystu-etched.step / ksc2690aystu-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ksc2690aystu.step / ksc2690aystu.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 cd613eddeffc8c9a, retrieved 2026-10-18, 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