component
KTC8550S-D-RTK
Public Made by Adomby adom
KEC Semicon Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownKTC8550S-D-RTK
KEC Semicon · Bipolar (BJT) · SOT-23
KTC8550S-D-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 | E | passive | Emitter of the PNP transistor; the datasheet rates emitter current IE at 800 mA maximum. |
| 2 | B | passive | Base of the PNP transistor; the emitter-base voltage VEBO is rated at -5 V. |
| 3 | C | passive | Collector of the PNP transistor; rated at VCBO -35 V, VCEO -30 V, collector current IC -800 mA, and collector power dissipation PC 350 mW (package mounted on 99.5% alumina). |
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 |
|---|---|---|---|---|---|---|---|
| Collector Cut-off Current | ICBO | -50 | nA | VCB=-15V, IE=0 | 1 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | -35 | V | IC=-0.5mA, IE=0 | 1 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | -30 | V | IC=-1mA, IB=0 | 1 | ||
| DC Current Gain hFE(1) | hFE(1) | 100 | 300 | VCE=-1V, IC=-50mA | 1 | ||
| DC Current Gain hFE(2) | hFE(2) | 60 | VCE=-1V, IC=-350mA | 1 | |||
| Collector-Emitter Saturation Voltage | VCE(sat) | -0.5 | V | IC=-500mA, IB=-50mA | 1 | ||
| Base-Emitter Voltage | VBE | -1.2 | V | VCE=-1V, IC=-500mA | 1 | ||
| Collector-Base Voltage | VCBO | -35 | V | 1 | |||
| Collector-Emitter Voltage | VCEO | -30 | V | 1 | |||
| Emitter-Base Voltage | VEBO | -5 | V | 1 | |||
| Collector Current | IC | -800 | mA | 1 | |||
| Emitter Current | IE | 800 | mA | 1 | |||
| Collector Power Dissipation | PC | 350 | mW | Package mounted on 99.5% Alumina (10x8x0.6 mm) | 1 | ||
| Junction Temperature | Tj | 150 | °C | 1 | |||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
KTC8550S-D-RTK - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ktc8550s-d-rtk-etched.step/ktc8550s-d-rtk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ktc8550s-d-rtk.step/ktc8550s-d-rtk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEC Semicon datasheet (2 pp, sha256
b0205e52c268cfd1, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).