component
KTA1504S-GR-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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Contents
README
markdownKTA1504S-GR-RTK
KEC Semicon · Bipolar (BJT) · SOT-23
KTA1504S-GR-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 PNP transistor, with emitter-base voltage limited to -5 V (VEBO) and collector current limited to -150 mA (IC). |
| 2 | BASE | passive | Base terminal of the PNP transistor, with base current limited to -30 mA (IB). |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor, with collector-emitter voltage rated -50 V (VCEO) and collector power dissipation of 150 mW (PC). |
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 |
|---|---|---|---|---|---|---|---|
| hFE DC current gain (GR rank) | hFE | 200 | 400 | VCE=-6V, IC=-2mA | 1 | ||
| Transition frequency | fT | 80 | MHz | VCE=-10V, IC=-1mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.1 | -0.3 | V | IC=-100mA, IB=-10mA | 1 | |
| Collector output capacitance | Cob | 4 | 7 | pF | VCB=-10V, IE=0, f=1MHz | 1 | |
| Noise figure | NF | 1 | 10 | dB | VCE=-6V, IC=-0.1mA, f=1kHz, Rg=10k | 1 | |
| Collector cut-off current | ICBO | -0.1 | μA | VCB=-50V, IE=0 | 1 | ||
| Emitter cut-off current | IEBO | -0.1 | μA | VEB=-5V, IC=0 | 1 | ||
| Collector-base voltage | VCBO | -50 | V | 1 | |||
| Collector-emitter voltage | VCEO | -50 | V | 1 | |||
| Emitter-base voltage | VEBO | -5 | V | 1 | |||
| Collector current | IC | -150 | mA | 1 | |||
| Base current | IB | -30 | mA | 1 | |||
| Collector power dissipation | PC | 150 | mW | Ta=25 C | 1 | ||
| Junction temperature | Tj | 150 | 1 | ||||
| Storage temperature range | Tstg | -55 | 150 | 1 |
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 | 1 |
CAD (KiCad official)
- Symbol:
KTA1504S-GR-RTK - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
kta1504s-gr-rtk-etched.step/kta1504s-gr-rtk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kta1504s-gr-rtk.step/kta1504s-gr-rtk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEC Semicon datasheet (3 pp, sha256
37b5efda8c23a59c, retrieved 2026-10-18, 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).