component
LMUN2241LT1G
Public Made by Adomby adom
LRC Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LMUN2241LT1G
LRC · Digital Transistors · SOT-23
LMUN2241LT1G 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 bias resistor transistor, connected through the internal R1 (100 kΩ, 70-130 kΩ) with R2 open (∞); input voltage VIN rated -6 to +40 V. |
| 2 | EMITTER | passive | Emitter of the NPN transistor, normally connected to ground; collector-emitter voltage VCEO is rated 50 V. |
| 3 | COLLECTOR | passive | Collector of the NPN transistor, rated for VCBO 50 V, VCEO 50 V and continuous collector current IC of 100 mA. |
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 | VBR(CEO) | 50 | V | IC = 2.0 mA, IB = 0 | 2 | ||
| Collector-Base Breakdown Voltage | VBR(CBO) | 50 | V | IC = 10 μA, IE = 0 | 2 | ||
| Collector-Base Cutoff Current | ICBO | 100 | nA | VCB = 50 V, IE = 0 | 2 | ||
| Collector-Emitter Cutoff Current | ICEO | 500 | nA | VCE = 50 V, IB = 0 | 2 | ||
| Emitter-Base Cutoff Current | IEBO | 0.1 | mA | VEB = 6.0 V, IC = 0 | 2 | ||
| DC Current Gain | HFE | 160 | IC = 5 mA, VCE = 10 V | 2 | |||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.25 | V | IC = 10 mA, IB = 2.5 mA | 2 | ||
| Output Voltage (on) | VOL | 0.2 | V | VCC = 5.0 V, VB = 5 V, RL = 1.0KΩ | 2 | ||
| Output Voltage (off) | VOH | 4.9 | V | VCC = 5.0 V, VB = 0.25 V, RL = 1.0KΩ | 2 | ||
| Input Resistor | R1 | 70 | 100 | 130 | KΩ | 2 | |
| Collector-Base Voltage | VCBO | 50 | V | Ta = 25ºC | 1 | ||
| Collector-Emitter Voltage | VCEO | 50 | V | Ta = 25ºC | 1 | ||
| Collector Current - Continuous | IC | 100 | mA | Ta = 25ºC | 1 | ||
| Input Voltage | VIN | -6 | 40 | V | Ta = 25ºC | 1 | |
| Junction and Storage Temperature | TJ,Tstg | -55 | 150 | ºC | 1 | ||
| Total Device Dissipation | PD | 246 | mW | FR-5 Board (Note 1) @ TA = 25ºC | 1 | ||
| Derate above 25ºC | 1.5 | mW/ºC | FR-5 @ Minimum Pad | 1 | |||
| Thermal Resistance, Junction-to-Ambient | RΘJA | 508 | ºC/W | FR-5 @ Minimum Pad | 1 |
CAD (KiCad official)
- Symbol:
LMUN2241LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lmun2241lt1g-etched.step/lmun2241lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmun2241lt1g.step/lmun2241lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
43b2e80130959b99, 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).
# LMUN2241LT1G
**LRC** · Digital Transistors · SOT-23
LMUN2241LT1G 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 bias resistor transistor, connected through the internal R1 (100 kΩ, 70-130 kΩ) with R2 open (∞); input voltage VIN rated -6 to +40 V. |
| 2 | EMITTER | passive | Emitter of the NPN transistor, normally connected to ground; collector-emitter voltage VCEO is rated 50 V. |
| 3 | COLLECTOR | passive | Collector of the NPN transistor, rated for VCBO 50 V, VCEO 50 V and continuous collector current IC of 100 mA. |
## 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 | VBR(CEO) | 50 | | | V | IC = 2.0 mA, IB = 0 | 2 |
| Collector-Base Breakdown Voltage | VBR(CBO) | 50 | | | V | IC = 10 μA, IE = 0 | 2 |
| Collector-Base Cutoff Current | ICBO | | | 100 | nA | VCB = 50 V, IE = 0 | 2 |
| Collector-Emitter Cutoff Current | ICEO | | | 500 | nA | VCE = 50 V, IB = 0 | 2 |
| Emitter-Base Cutoff Current | IEBO | | | 0.1 | mA | VEB = 6.0 V, IC = 0 | 2 |
| DC Current Gain | HFE | 160 | | | | IC = 5 mA, VCE = 10 V | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | | 0.25 | V | IC = 10 mA, IB = 2.5 mA | 2 |
| Output Voltage (on) | VOL | | | 0.2 | V | VCC = 5.0 V, VB = 5 V, RL = 1.0KΩ | 2 |
| Output Voltage (off) | VOH | 4.9 | | | V | VCC = 5.0 V, VB = 0.25 V, RL = 1.0KΩ | 2 |
| Input Resistor | R1 | 70 | 100 | 130 | KΩ | | 2 |
| Collector-Base Voltage | VCBO | | | 50 | V | Ta = 25ºC | 1 |
| Collector-Emitter Voltage | VCEO | | | 50 | V | Ta = 25ºC | 1 |
| Collector Current - Continuous | IC | | | 100 | mA | Ta = 25ºC | 1 |
| Input Voltage | VIN | -6 | | 40 | V | Ta = 25ºC | 1 |
| Junction and Storage Temperature | TJ,Tstg | -55 | | 150 | ºC | | 1 |
| Total Device Dissipation | PD | | | 246 | mW | FR-5 Board (Note 1) @ TA = 25ºC | 1 |
| Derate above 25ºC | | | | 1.5 | mW/ºC | FR-5 @ Minimum Pad | 1 |
| Thermal Resistance, Junction-to-Ambient | RΘJA | | | 508 | ºC/W | FR-5 @ Minimum Pad | 1 |
## CAD (KiCad official)
- Symbol: `LMUN2241LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lmun2241lt1g-etched.step` / `lmun2241lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmun2241lt1g.step` / `lmun2241lt1g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [LRC datasheet](docs/lmun2241lt1g-datasheet.pdf) (6 pp, sha256 `43b2e80130959b99`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/lmun2241lt1g-datasheet.pdf)