component
LMUN2135LT1G
Public Made by Adomby adom
LRC Digital Transistors, 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
markdownLMUN2135LT1G
LRC · Digital Transistors · SOT-23
LMUN2135LT1G 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 input of the PNP BRT, connected through the internal series base resistor R1 (1 kΩ) to the transistor base. |
| 2 | EMITTER | power_in | Emitter is the common reference (labelled GROUND on the datasheet), tied to the internal base-emitter resistor R2, with VEB rated at 6.0 V for the emitter-base cutoff test. |
| 3 | COLLECTOR | output | Collector output of the BRT, rated for a collector-emitter voltage VCEO of 50 Vdc and a collector current IC of 100 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-Base Cutoff Current | ICBO | 100 | nAdc | VCB = 50 V, IE = 0 | 2 | ||
| Collector-Emitter Cutoff Current | ICEO | 500 | nAdc | VCE = 50 V, IB = 0 | 2 | ||
| Emitter-Base Cutoff Current | IEBO | 0.2 | mAdc | VBE = 6.0 V | 2 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | 50 | Vdc | IC = 10 µA, IE = 0 | 2 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 50 | Vdc | IC = 2.0 mA, IB = 0 | 2 | ||
| DC Current Gain | hFE | 80 | VCE = 10 V, IC = 5.0 mA | 2 | |||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.25 | Vdc | IC = 10 mA, IB = 1 mA | 2 | ||
| Output Voltage (on) | VOL | 0.2 | Vdc | VCC = 5.0 V, VB = 2.5 V, RL = 1.0 kΩ | 2 | ||
| Output Voltage (off) | VOH | 4.9 | Vdc | VCC = 5.0 V, VB = 0.25 V, RL = 1.0 kΩ | 2 | ||
| Input Resistor | R1 | 1.54 | 2.2 | 2.86 | kΩ | 2 | |
| Resistor Ratio R1/R2 | R1/R2 | 0.038 | 0.047 | 0.056 | 2 | ||
| Collector-Base Voltage | VCBO | 50 | Vdc | TA = 25°C unless otherwise noted | 1 | ||
| Collector-Emitter Voltage | VCEO | 50 | Vdc | TA = 25°C unless otherwise noted | 1 | ||
| Collector Current | IC | 100 | mAdc | TA = 25°C unless otherwise noted | 1 | ||
| Total Device Dissipation (FR-4 @ Minimum Pad) | PD | 246 | mW | TA = 25°C, Note 1 (FR-4 @ Minimum Pad) | 1 | ||
| Total Device Dissipation (FR-4 @ 1.0 x 1.0 inch Pad) | PD | 400 | mW | TA = 25°C, Note 2 (FR-4 @ 1.0 x 1.0 inch Pad) | 1 | ||
| Derate above 25°C (FR-4 @ Minimum Pad) | 2 | mW/°C | Note 1 (FR-4 @ Minimum Pad) | 1 | |||
| Derate above 25°C (FR-4 @ 1.0 x 1.0 inch Pad) | 3.2 | mW/°C | Note 2 (FR-4 @ 1.0 x 1.0 inch Pad) | 1 | |||
| Thermal Resistance, Junction-to-Ambient (FR-4 @ Minimum Pad) | RθJA | 508 | °C/W | Note 1 (FR-4 @ Minimum Pad) | 1 | ||
| Thermal Resistance, Junction-to-Ambient (FR-4 @ 1.0 x 1.0 inch Pad) | RθJA | 311 | °C/W | Note 2 (FR-4 @ 1.0 x 1.0 inch Pad) | 1 | ||
| Thermal Resistance, Junction-to-Lead (FR-4 @ Minimum Pad) | RθJL | 174 | °C/W | Note 1 (FR-4 @ Minimum Pad) | 1 | ||
| Thermal Resistance, Junction-to-Lead (FR-4 @ 1.0 x 1.0 inch Pad) | RθJL | 208 | °C/W | Note 2 (FR-4 @ 1.0 x 1.0 inch Pad) | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
LMUN2135LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lmun2135lt1g-etched.step/lmun2135lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmun2135lt1g.step/lmun2135lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (4 pp, sha256
6ac369f383f745c1, retrieved 2026-10-18, 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).