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LMBT6427LT1G
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LRC Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LMBT6427LT1G
LRC · Bipolar (BJT) · SOT-23
LMBT6427LT1G from LRC, in a SOT-23. 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 Darlington transistor, with emitter-base voltage rated at 12 Vdc maximum (VEBO). |
| 2 | EMITTER | passive | Emitter of the NPN Darlington transistor, which is rated for a collector-emitter voltage of 40 Vdc (VCEO) and a continuous collector current of 500 mAdc. |
| 3 | COLLECTOR | passive | Collector of the NPN Darlington transistor, with collector-base voltage rated at 40 Vdc (VCBO) and continuous collector current of 500 mAdc. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| 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-Emitter Breakdown Voltage | V (BR)CEO | 40 | Vdc | IC = 10 mAdc, VBE = 0 | 1 | ||
| Collector-Base Breakdown Voltage | V (BR)CBO | 40 | Vdc | IC = 100 µAdc, IE = 0 | 1 | ||
| Emitter-Base Breakdown Voltage | V (BR)EBO | 12 | Vdc | IE = 10 µAdc, IC = 0 | 1 | ||
| Collector Cutoff Current | ICES | 1 | µAdc | VCE = 25 Vdc, IB = 0 | 1 | ||
| Collector Cutoff Current | ICBO | 50 | nAdc | VCB = 30 Vdc, IE = 0 | 1 | ||
| Emitter Cutoff Current | IEBO | 50 | nAdc | VEB = 10 Vdc, IC = 0 | 1 | ||
| DC Current Gain | hFE | 10000 | 100000 | IC = 10 mAdc, VCE = 5.0 Vdc | 2 | ||
| DC Current Gain | hFE | 20000 | 200000 | IC = 100 mAdc, VCE = 5.0 Vdc | 2 | ||
| DC Current Gain | hFE | 14000 | 140000 | IC = 500 mAdc, VCE = 5.0 Vdc | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 1.2 | Vdc | IC = 50 mAdc, IB = 0.5 mAdc | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 1.5 | Vdc | IC = 500 mAdc, IB = 0.5 mAdc | 2 | ||
| Base-Emitter Saturation Voltage | VBE(sat) | 2 | Vdc | IC = 500 mAdc, IB = 0.5 mAdc | 2 | ||
| Base-Emitter On Voltage | VBE(on) | 1.75 | Vdc | IC = 50 mAdc, VCE = 5.0 Vdc | 2 | ||
| Output Capacitance | Cobo | 7 | pF | VCB = 10 Vdc, IE = 0, f = 1.0 MHz | 2 | ||
| Input Capacitance | Cibo | 15 | pF | VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz | 2 | ||
| Current Gain-High Frequency | /hfe/ | 1.3 | Vdc | VCE = 5.0 Vdc, IC = 10 mAdc, f = 100 MHz | 2 | ||
| Noise Figure | NF | 10 | dB | VCE = 5.0 Vdc, IC = 1.0 mAdc, RS = 100 kΩ, f = 1.0 kHz | 2 | ||
| Collector-Emitter Voltage | VCEO | 40 | Vdc | 1 | |||
| Collector-Base Voltage | VCBO | 40 | Vdc | 1 | |||
| Emitter-Base Voltage | VEBO | 12 | Vdc | 1 | |||
| Collector Current, Continuous | IC | 500 | mAdc | 1 | |||
| Junction and Storage Temperature | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Total Device Dissipation | PD | 225 | mW | FR-5 board, TA = 25°C | 1 | ||
| Total Device Dissipation | PD | 300 | mW | Alumina substrate, TA = 25°C | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 556 | °C/W | FR-5 board | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 417 | °C/W | Alumina substrate | 1 |
CAD (KiCad official)
- Symbol:
LMBT6427LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lmbt6427lt1g-etched.step/lmbt6427lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmbt6427lt1g.step/lmbt6427lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
4a3c1f4c0270e295, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# LMBT6427LT1G
**LRC** · Bipolar (BJT) · SOT-23
LMBT6427LT1G from LRC, in a SOT-23. 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 Darlington transistor, with emitter-base voltage rated at 12 Vdc maximum (VEBO). |
| 2 | EMITTER | passive | Emitter of the NPN Darlington transistor, which is rated for a collector-emitter voltage of 40 Vdc (VCEO) and a continuous collector current of 500 mAdc. |
| 3 | COLLECTOR | passive | Collector of the NPN Darlington transistor, with collector-base voltage rated at 40 Vdc (VCBO) and continuous collector current of 500 mAdc. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| 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-Emitter Breakdown Voltage | V (BR)CEO | 40 | | | Vdc | IC = 10 mAdc, VBE = 0 | 1 |
| Collector-Base Breakdown Voltage | V (BR)CBO | 40 | | | Vdc | IC = 100 µAdc, IE = 0 | 1 |
| Emitter-Base Breakdown Voltage | V (BR)EBO | 12 | | | Vdc | IE = 10 µAdc, IC = 0 | 1 |
| Collector Cutoff Current | ICES | | | 1 | µAdc | VCE = 25 Vdc, IB = 0 | 1 |
| Collector Cutoff Current | ICBO | | | 50 | nAdc | VCB = 30 Vdc, IE = 0 | 1 |
| Emitter Cutoff Current | IEBO | | | 50 | nAdc | VEB = 10 Vdc, IC = 0 | 1 |
| DC Current Gain | hFE | 10000 | | 100000 | | IC = 10 mAdc, VCE = 5.0 Vdc | 2 |
| DC Current Gain | hFE | 20000 | | 200000 | | IC = 100 mAdc, VCE = 5.0 Vdc | 2 |
| DC Current Gain | hFE | 14000 | | 140000 | | IC = 500 mAdc, VCE = 5.0 Vdc | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | | 1.2 | Vdc | IC = 50 mAdc, IB = 0.5 mAdc | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | | 1.5 | Vdc | IC = 500 mAdc, IB = 0.5 mAdc | 2 |
| Base-Emitter Saturation Voltage | VBE(sat) | | | 2 | Vdc | IC = 500 mAdc, IB = 0.5 mAdc | 2 |
| Base-Emitter On Voltage | VBE(on) | | | 1.75 | Vdc | IC = 50 mAdc, VCE = 5.0 Vdc | 2 |
| Output Capacitance | Cobo | | | 7 | pF | VCB = 10 Vdc, IE = 0, f = 1.0 MHz | 2 |
| Input Capacitance | Cibo | | | 15 | pF | VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz | 2 |
| Current Gain-High Frequency | /hfe/ | 1.3 | | | Vdc | VCE = 5.0 Vdc, IC = 10 mAdc, f = 100 MHz | 2 |
| Noise Figure | NF | | | 10 | dB | VCE = 5.0 Vdc, IC = 1.0 mAdc, RS = 100 kΩ, f = 1.0 kHz | 2 |
| Collector-Emitter Voltage | VCEO | | | 40 | Vdc | | 1 |
| Collector-Base Voltage | VCBO | | | 40 | Vdc | | 1 |
| Emitter-Base Voltage | VEBO | | | 12 | Vdc | | 1 |
| Collector Current, Continuous | IC | | | 500 | mAdc | | 1 |
| Junction and Storage Temperature | TJ, Tstg | -55 | | 150 | °C | | 1 |
| Total Device Dissipation | PD | | | 225 | mW | FR-5 board, TA = 25°C | 1 |
| Total Device Dissipation | PD | | | 300 | mW | Alumina substrate, TA = 25°C | 1 |
| Thermal Resistance, Junction to Ambient | RθJA | | | 556 | °C/W | FR-5 board | 1 |
| Thermal Resistance, Junction to Ambient | RθJA | | | 417 | °C/W | Alumina substrate | 1 |
## CAD (KiCad official)
- Symbol: `LMBT6427LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lmbt6427lt1g-etched.step` / `lmbt6427lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmbt6427lt1g.step` / `lmbt6427lt1g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586187685728309248) (6 pp, sha256 `4a3c1f4c0270e295`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/lmbt6427lt1g-datasheet.pdf)