component
2SC3357U
Public Made by Adomby adom
CBI Bipolar Transistors - BJT, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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2SC3357U
CBI · Bipolar Transistors - BJT · SOT-89
2SC3357U from CBI, 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 | B | input | Base of the NPN transistor; VEBO max 3.0 V, and collector current is rated up to 100 mA. |
| 2 | C | passive | Collector (also the tab) of the NPN transistor; VCBO max 20 V, VCEO max 12 V, IC max 100 mA. |
| 3 | E | passive | Emitter of the NPN transistor; VEBO max 3.0 V relative to the base. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOT-89 |
| Category | Triode/MOS Tube/Transistor |
| 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 to Base Voltage | VCBO | 20 | V | TA = 25 °C | 1 | ||
| Collector to Emitter Voltage | VCEO | 12 | V | TA = 25 °C | 1 | ||
| Emitter to Base Voltage | VEBO | 3 | V | TA = 25 °C | 1 | ||
| Collector Current | IC | 100 | mA | TA = 25 °C | 1 | ||
| Total Power Dissipation | PT | 1.2 | W | TA = 25 °C; mounted on 16 cm2 × 0.7 mm Ceramic Substrate | 1 | ||
| Thermal Resistance, junction to ambient | Rth(j-a) | 62.5 | °C/W | mounted on 16 cm2 × 0.7 mm Ceramic Substrate | 1 | ||
| Junction Temperature | Tj | 150 | °C | TA = 25 °C | 1 | ||
| Storage Temperature | Tstg | -65 | 150 | °C | TA = 25 °C | 1 |
CAD (KiCad official)
- Symbol:
2SC3357U - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
2sc3357u-etched.step/2sc3357u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sc3357u.step/2sc3357u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CBI datasheet (4 pp, sha256
0f4be873ecbd2b47, retrieved 2026-11-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# 2SC3357U
**CBI** · Bipolar Transistors - BJT · SOT-89
2SC3357U from CBI, 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 | B | input | Base of the NPN transistor; VEBO max 3.0 V, and collector current is rated up to 100 mA. |
| 2 | C | passive | Collector (also the tab) of the NPN transistor; VCBO max 20 V, VCEO max 12 V, IC max 100 mA. |
| 3 | E | passive | Emitter of the NPN transistor; VEBO max 3.0 V relative to the base. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOT-89 |
| Category | Triode/MOS Tube/Transistor |
| 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 to Base Voltage | VCBO | | | 20 | V | TA = 25 °C | 1 |
| Collector to Emitter Voltage | VCEO | | | 12 | V | TA = 25 °C | 1 |
| Emitter to Base Voltage | VEBO | | | 3 | V | TA = 25 °C | 1 |
| Collector Current | IC | | | 100 | mA | TA = 25 °C | 1 |
| Total Power Dissipation | PT | | | 1.2 | W | TA = 25 °C; mounted on 16 cm2 × 0.7 mm Ceramic Substrate | 1 |
| Thermal Resistance, junction to ambient | Rth(j-a) | | | 62.5 | °C/W | mounted on 16 cm2 × 0.7 mm Ceramic Substrate | 1 |
| Junction Temperature | Tj | | | 150 | °C | TA = 25 °C | 1 |
| Storage Temperature | Tstg | -65 | | 150 | °C | TA = 25 °C | 1 |
## CAD (KiCad official)
- Symbol: `2SC3357U`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `2sc3357u-etched.step` / `2sc3357u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc3357u.step` / `2sc3357u.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [CBI datasheet](docs/2sc3357u-datasheet.pdf) (4 pp, sha256 `0f4be873ecbd2b47`, retrieved 2026-11-05, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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](docs/2sc3357u-datasheet.pdf)