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KRC116S-RTK

Public Made by Adom

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KEC Semicon Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KRC116S-RTK

KEC Semicon · Digital Transistors · SOT-23

KRC116S-RTK from KEC Semicon, 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 EMITTER passive Emitter terminal of the built-in bias-resistor NPN transistor; the datasheet gives no separate pin limit beyond the absolute maximum ratings (output current 100 mA, power dissipation 200 mW, junction temperature 150 °C).
2 BASE input Base terminal of the transistor, with the internal bias resistors R1/R2 on the input side; the input voltage limit depends on type, from 10 V / -5 V (KRC116S) up to 40 V / -10 V (KRC122S).
3 COLLECTOR passive Collector (output) terminal rated for an output voltage of 50 V and an output current of 100 mA maximum.

Key specifications

Parameter Value
Manufacturer KEC Semicon
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
Output Cut-off Current IO(OFF) 500 nA VO=50V, VI=0 2
DC Current Gain GI 33 VO=5V, IO=5mA 2
Output Voltage VO(ON) 0.3 V IO=10mA, II=0.5mA 2
Input Voltage (ON) VI(ON) 3 V VO=0.3V, IO=20mA 2
Input Voltage (OFF) VI(OFF) 0.3 0.63 V VCC=5V, IO=100μA 2
Input Current II 7.2 mA VI=5V 2
Input Resistor R1 0.7 1 1.3 k 2
Resistor Ratio R2/R1 8 10 12 2
Input Voltage VI -5 10 V 1
Output Voltage VO 50 V 1
Output Current IO 100 mA 1
Power Dissipation PD 200 mW 1
Junction Temperature Tj 150 1
Storage Temperature Range Tstg -55 150 1

CAD (KiCad official)

  • Symbol: KRC116S-RTK
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: krc116s-rtk-etched.step / krc116s-rtk-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); krc116s-rtk.step / krc116s-rtk.glb are the bare package body.

Provenance

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

  • Datasheet: KEC Semicon datasheet (6 pp, sha256 eb45eda6a724cbc9, 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