component
2SD1138
Public Made by Adomby adom
Changjing Bipolar Transistors - BJT, TO-220-3L. 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
markdown2SD1138
Changjing · Bipolar Transistors - BJT · TO-220-3L
2SD1138 from Changjing, in a TO-220-3L. 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 terminal of the NPN transistor; VEBO max 6 V, with IEBO of 1 μA max at VEB=5V. |
| 2 | COLLECTOR | passive | Collector terminal; VCBO 200 V, VCEO 150 V, IC max 2 A. |
| 3 | EMITTER | passive | Emitter terminal of the NPN transistor; VEBO max 6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-220-3L |
| 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 Voltage | VCBO | 200 | V | Ta=25℃ | 1 | ||
| Collector-Emitter Voltage | VCEO | 150 | V | Ta=25℃ | 1 | ||
| Emitter-Base Voltage | VEBO | 6 | V | Ta=25℃ | 1 | ||
| Collector Current | IC | 2 | A | Ta=25℃ | 1 | ||
| Collector Power Dissipation | PC | 1.8 | W | Ta=25℃ | 1 | ||
| Operation Junction and Storage Temperature Range | Tj,Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance from Junction to Ambient | RθJA | 69 | ℃/W | 1 | |||
| Collector-base breakdown voltage | V(BR)CBO | 200 | V | IC=5mA, IE=0 | 2 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 150 | V | IC=50mA,IB=0 | 2 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 6 | V | IE=5mA,IC=0 | 2 | ||
| Collector cut-off current | ICBO | 1 | μA | VCB=120V,IE=0 | 2 | ||
| Emitter cut-off current | IEBO | 1 | μA | VEB=5V,IC=0 | 2 | ||
| DC current gain (1) | hFE(1) | 60 | 200 | VCE=4V, IC=50mA | 2 | ||
| DC current gain (2) | hFE(2) | 60 | VCE=10V, IC=500mA | 2 | |||
| Collector-emitter saturation voltage | VCE(sat) | 3 | V | IC=500mA,IB=50mA | 2 | ||
| Base-emitter voltage | VBE | 1 | V | VCE=4V, IC=50mA | 2 | ||
| Collector output capacitance | Cob | 30 | pF | VCB=10V,IE=0, f=1MHz | 2 |
CAD (KiCad official)
- Symbol:
2SD1138 - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220-3L (KiCad packages3D, STEP)
- 3D model files:
2sd1138-etched.step/2sd1138-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sd1138.step/2sd1138.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
c61b230b0377e00f, retrieved 2026-10-23, 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).