component
KTC1027-Y-AT
Public Made by Adomby adom
KEC Semicon Bipolar (BJT), TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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KTC1027-Y-AT
KEC Semicon · Bipolar (BJT) · TO-92-3
KTC1027-Y-AT from KEC Semicon, in a TO-92-3. 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 | EMITTER | passive | Emitter; VEBO max 5 V and emitter current IE max -800 mA. |
| 2 | COLLECTOR | passive | Collector; VCBO and VCEO max 120 V, IC max 800 mA. |
| 3 | BASE | passive | Base; VCE(sat) max 1.0 V at IC=500 mA, IB=50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | TO-92-3 |
| 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 | 120 | V | 1 | |||
| Collector-Emitter Voltage | VCEO | 120 | V | 1 | |||
| Emitter-Base Voltage | VEBO | 5 | V | 1 | |||
| Collector Current | IC | 800 | mA | 1 | |||
| Emitter Current | IE | -800 | mA | 1 | |||
| Collector Power Dissipation | PC | 1 | W | 1 | |||
| Junction Temperature | Tj | 150 | °C | 1 | |||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 120 | V | IC=10mA, IB=0 | 1 | ||
| Emitter-Base Breakdown Voltage | V(BR)EBO | 5 | V | IE=1mA, IC=0 | 1 | ||
| Collector Cut-off Current | ICBO | 100 | nA | VCB=120V, IE=0 | 1 | ||
| Emitter Cut-off Current | IEBO | 100 | nA | VEB=5V, IC=0 | 1 | ||
| DC Current Gain (Y classification) | hFE | 120 | 240 | VCE=5V, IC=100mA | 1 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 1 | V | IC=500mA, IB=50mA | 1 | ||
| Base-Emitter Voltage | VBE | 1 | V | VCE=5V, IC=500mA | 1 | ||
| Collector Output Capacitance | Cob | 30 | pF | VCB=10V, IE=0, f=1MHz | 1 |
CAD (KiCad official)
- Symbol:
KTC1027-Y-AT - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
ktc1027-y-at-etched.step/ktc1027-y-at-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ktc1027-y-at.step/ktc1027-y-at.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEC Semicon datasheet (2 pp, sha256
0a54d7f950caa4b3, retrieved 2026-10-17, 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).
# KTC1027-Y-AT
**KEC Semicon** · Bipolar (BJT) · TO-92-3
KTC1027-Y-AT from KEC Semicon, in a TO-92-3. 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 | EMITTER | passive | Emitter; VEBO max 5 V and emitter current IE max -800 mA. |
| 2 | COLLECTOR | passive | Collector; VCBO and VCEO max 120 V, IC max 800 mA. |
| 3 | BASE | passive | Base; VCE(sat) max 1.0 V at IC=500 mA, IB=50 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | TO-92-3 |
| 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 | | | 120 | V | | 1 |
| Collector-Emitter Voltage | VCEO | | | 120 | V | | 1 |
| Emitter-Base Voltage | VEBO | | | 5 | V | | 1 |
| Collector Current | IC | | | 800 | mA | | 1 |
| Emitter Current | IE | -800 | | | mA | | 1 |
| Collector Power Dissipation | PC | | | 1 | W | | 1 |
| Junction Temperature | Tj | | | 150 | °C | | 1 |
| Storage Temperature Range | Tstg | -55 | | 150 | °C | | 1 |
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 120 | | | V | IC=10mA, IB=0 | 1 |
| Emitter-Base Breakdown Voltage | V(BR)EBO | 5 | | | V | IE=1mA, IC=0 | 1 |
| Collector Cut-off Current | ICBO | | | 100 | nA | VCB=120V, IE=0 | 1 |
| Emitter Cut-off Current | IEBO | | | 100 | nA | VEB=5V, IC=0 | 1 |
| DC Current Gain (Y classification) | hFE | 120 | | 240 | | VCE=5V, IC=100mA | 1 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | | 1 | V | IC=500mA, IB=50mA | 1 |
| Base-Emitter Voltage | VBE | | | 1 | V | VCE=5V, IC=500mA | 1 |
| Collector Output Capacitance | Cob | | | 30 | pF | VCB=10V, IE=0, f=1MHz | 1 |
## CAD (KiCad official)
- Symbol: `KTC1027-Y-AT`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files: `ktc1027-y-at-etched.step` / `ktc1027-y-at-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ktc1027-y-at.step` / `ktc1027-y-at.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [KEC Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588895067234426880) (2 pp, sha256 `0a54d7f950caa4b3`, retrieved 2026-10-17, 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/ktc1027-y-at-datasheet.pdf)