component
2SC3904
Public Made by Adomby adom
Slkor(SLKORMICRO Elec.) Bipolar (BJT), SOT-89. 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
markdown2SC3904
Slkor(SLKORMICRO Elec.) · Bipolar (BJT) · SOT-89
2SC3904 from Slkor(SLKORMICRO Elec.), in a SOT-89. 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 | Base | input | Base of the NPN transistor; VEBO max 6 V and base-emitter saturation voltage max 0.85 V at IC=10 mA, IB=1 mA. |
| 2 | Collector | passive | Collector of the NPN transistor; VCBO 60 V, VCEO 40 V, IC max 200 mA. |
| 3 | Emitter | passive | Emitter of the NPN transistor; reference terminal for VCEO 40 V and VEBO 6 V ratings. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | SOT-89 |
| 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 Base Voltage | VCBO | 60 | V | 1 | |||
| Collector Emitter Voltage | VCEO | 40 | V | 1 | |||
| Emitter Base Voltage | VEBO | 6 | V | 1 | |||
| Collector Current | IC | 200 | mA | 1 | |||
| Maximum Power Dissipation | PD | 500 | mW | 1 | |||
| Junction Temperature | TJ | 150 | ℃ | 1 | |||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 | ||
| DC Current Gain | HFE | 40 | VCE = 1 V, IC = 0.1 mA | 2 | |||
| DC Current Gain | HFE | 70 | VCE = 1 V, IC = 1 mA | 2 | |||
| DC Current Gain | HFE | 100 | 300 | VCE = 1 V, IC = 10 mA | 2 | ||
| DC Current Gain | HFE | 60 | VCE = 1 V, IC = 50 mA | 2 | |||
| DC Current Gain | HFE | 30 | VCE = 1 V, IC = 100 mA | 2 | |||
| Collector Base Cutoff Current | ICBO | 50 | nA | VCB = 30V | 2 | ||
| Emitter Base Cutoff Current | IEBO | 50 | nA | VEB = 6 V | 2 | ||
| Collector Base Breakdown Voltage | V(BR)CBO | 60 | V | IC = 10 μA | 2 | ||
| Collector Emitter Breakdown Voltage | V(BR)CEO | 40 | V | IC = 1 mA | 2 | ||
| Emitter Base Breakdown Voltage | V(BR)EBO | 6 | V | IE = 10 μA | 2 | ||
| Collector Emitter Saturation Voltage | VCE(sat) | 0.2 | V | IC = 10 mA, IB = 1 mA | 2 | ||
| Collector Emitter Saturation Voltage | VCE(sat) | 0.3 | V | IC = 50 mA, IB = 5 mA | 2 | ||
| Base Emitter Saturation Voltage | VBE(sat) | 0.85 | V | IC = 10 mA, IB = 1 mA | 2 | ||
| Base Emitter Saturation Voltage | VBE(sat) | 0.95 | V | IC = 50 mA, IB = 5 mA | 2 | ||
| Transition Frequency | FT | 300 | MHz | VCE = 20 V, IC = 10 mA, f = 100 MHz | 2 | ||
| Output Capacitance | Cob | 4 | pF | VCB = 5 V, f = 1 KHz | 2 |
CAD (KiCad official)
- Symbol:
2SC3904 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
2sc3904-etched.step/2sc3904-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sc3904.step/2sc3904.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor(SLKORMICRO Elec.) datasheet (5 pp, sha256
ca9e77525500f86f, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).