component
S9018
Public Made by Adomby adom
hongjiacheng 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
markdownS9018
hongjiacheng · Bipolar (BJT) · SOT-23
S9018 from hongjiacheng, 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 | B | passive | Base terminal of the S9018 NPN transistor; the datasheet's function diagram labels this pin B. Base-emitter saturation voltage is specified at IC=10mA, IB=1mA, with a maximum of 1.4 V. |
| 2 | E | passive | Emitter terminal of the S9018 NPN transistor; the datasheet's function diagram labels this pin E. Emitter-base breakdown voltage is 5.0 V minimum at IE=100μA. |
| 3 | C | passive | Collector terminal of the S9018 NPN transistor; the datasheet's function diagram labels this pin C. Collector-base breakdown voltage is 30 V minimum and collector current is rated at 50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
S9018 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
s9018-etched.step/s9018-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s9018.step/s9018.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (3 pp, sha256
87f4583e6652db41, retrieved 2026-10-09, 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).