component
2SC1766
Public Made by Adomby adom
Changjing Bipolar Transistors - BJT, SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdown2SC1766
Changjing · Bipolar Transistors - BJT · SOT-89-3L
2SC1766 from Changjing, in a SOT-89-3L. 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 5 V and VBE(sat) max 1.2 V at IC=1A, IB=50mA. |
| 2 | COLLECTOR | passive | Collector of the NPN transistor; VCBO and VCEO max 50 V, IC max 2 A, PC 500 mW. |
| 3 | EMITTER | passive | Emitter of the NPN transistor; VEBO max 5 V relative to base. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-89-3L |
| 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-base breakdown voltage | V(BR)CBO | 50 | V | IC=100µA,IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | V | IC=1mA,IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 5 | V | IE=100µA,IC=0 | 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 | ||
| DC current gain | hFE(1) | 82 | 390 | VCE=2V, IC=0.5A | 1 | ||
| DC current gain | hFE(2) | 20 | VCE=2V, IC=2A | 1 | |||
| Collector-emitter saturation voltage | VCE(sat) | 0.5 | V | IC=1A,IB=50mA | 1 | ||
| Base-emitter saturation voltage | VBE(sat) | 1.2 | V | IC=1A,IB=50mA | 1 | ||
| Collector-Base Voltage | VCBO | 50 | V | Ta=25℃ | 1 | ||
| Collector-Emitter Voltage | VCEO | 50 | V | Ta=25℃ | 1 | ||
| Emitter-Base Voltage | VEBO | 5 | V | Ta=25℃ | 1 | ||
| Collector Current | IC | 2 | A | Ta=25℃ | 1 | ||
| Collector Power Dissipation | PC | 500 | mW | Ta=25℃ | 1 | ||
| Operation Junction and Storage Temperature Range | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance From Junction To Ambient | RθJA | 250 | ℃/W | 1 | |||
| Transition frequency | fT | 120 | MHz | VCE=2V,IC=0.5A,f=100MHz | 1 |
CAD (KiCad official)
- Symbol:
2SC1766 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3L (KiCad packages3D, STEP)
- 3D model files:
2sc1766-etched.step/2sc1766-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sc1766.step/2sc1766.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
970baa3514f57e49, 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).