component
S-LMBT5401LT1G
Public Made by Adomby adom
LRC Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownS-LMBT5401LT1G
LRC · Bipolar (BJT) · SOT-23
S-LMBT5401LT1G 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 terminal of the transistor; base-emitter saturation voltage VBE(sat) is specified at a maximum of -1 V for IC = -10 mA with IB = -1.0 mA and for IC = -50 mA with IB = -5.0 mA. |
| 2 | EMITTER | passive | Emitter terminal; emitter-base breakdown voltage V(BR)EBO is -5 V minimum and the emitter-base cutoff current IEBO is at most -50 nA at VEB = -5.0 V. |
| 3 | COLLECTOR | passive | Collector terminal; the device limits are VCEO -150 V, VCBO -160 V and continuous collector current IC -500 mA (absolute maximum ratings, Ta = 25 ºC). |
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 Voltage | VCEO | -150 | V | 1 | |||
| Collector-Base Voltage | VCBO | -160 | V | 1 | |||
| Emitter-Base Voltage | VEBO | -5 | V | 1 | |||
| Collector Current - Continuous | IC | -500 | mA | 1 | |||
| Junction and Storage Temperature | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Total Device Dissipation, FR-5 Board | PD | 225 | mW | FR-5 board (Note 1), TA = 25°C | 1 | ||
| Derate above 25°C, FR-5 Board | 1.8 | mW/℃ | FR-5 board, above TA = 25°C | 1 | |||
| Thermal Resistance, Junction-to-Ambient, FR-5 Board | RΘJA | 556 | ℃/W | FR-5 board | 1 | ||
| Total Device Dissipation, Alumina Substrate | PD | 300 | mW | Alumina substrate (Note 2), TA = 25°C | 1 | ||
| Derate above 25°C, Alumina Substrate | 2.4 | mW/℃ | Alumina substrate, above TA = 25°C | 1 | |||
| Thermal Resistance, Junction-to-Ambient, Alumina Substrate | RΘJA | 417 | ℃/W | Alumina substrate | 1 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | -150 | V | IC = -1.0 mA, IB = 0 | 2 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | -160 | V | IC = -100 µA, IE = 0 | 2 | ||
| Emitter-Base Breakdown Voltage | V(BR)EBO | -5 | V | IE = -10 µA, IC = 0 | 2 | ||
| Collector Cutoff Current | ICBO | -50 | nA | VCB = -120 V, IE = 0 | 2 | ||
| Collector Cutoff Current (TA=100°C) | ICBO | -50 | µA | VCB = -120 V, IE = 0, TA = 100℃ | 2 | ||
| Emitter-Base Cut-off Current | IEBO | -50 | nA | IC = 0, VEB = -5.0 V | 2 | ||
| Collector-Emitter Cutoff Current | ICEO | -10 | μA | VCE = -150 V, IB = 0 | 2 | ||
| DC Current Gain | HFE | 50 | IC = -1.0 mA, VCE = -5.0 V | 2 | |||
| DC Current Gain | HFE | 60 | 240 | IC = -10 mA, VCE = -5.0 V | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(S) | -0.2 | V | IC = -10 mA, IB = -1.0 mA | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(S) | -0.5 | V | IC = -50 mA, IB = -5.0 mA | 2 | ||
| Base-Emitter Saturation Voltage | VBE(S) | -1 | V | IC = -10 mA, IB = -1.0 mA | 2 | ||
| Current-Gain Bandwidth Product | fT | 100 | 300 | MHz | IC = -10 mA, VCE = -10 V, f = 100 MHz | 2 | |
| Output Capacitance | Cobo | 6 | pF | VCB = -10 V, IE = 0, f = 1.0 MHz | 2 | ||
| Small-Signal Current Gain | hfe | 40 | 200 | IC = -1.0 mA, VCE = -10 V, f = 1.0 kHz | 2 | ||
| Noise Figure | NF | 8 | dB | IC = -200 µA, VCE = -5.0 V, Rs = 10 Ω, f = 1.0 kHz | 2 |
CAD (KiCad official)
- Symbol:
S-LMBT5401LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
s-lmbt5401lt1g-etched.step/s-lmbt5401lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s-lmbt5401lt1g.step/s-lmbt5401lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
0953077d2912da75, retrieved 2026-10-17, 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).