component
S-LMBZ27VALT1G
Public Made by Adomby adom
LRC ESD And Surge Protection (TVS/ESD), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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S-LMBZ27VALT1G
LRC · ESD And Surge Protection (TVS/ESD) · SOT-23
S-LMBZ27VALT1G 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 | K1 | passive | Cathode of the first Zener diode (diode 1 to common anode pin 3), 27 V nominal breakdown (25.65 V to 28.35 V at IT = 1 mA) for ESD protection. |
| 2 | K2 | passive | Cathode of the second Zener diode (diode 2 to common anode pin 3), 27 V nominal breakdown (25.65 V to 28.35 V at IT = 1 mA) for ESD protection. |
| 3 | A | passive | Common anode of both Zener diodes, connected to the two cathode pins 1 and 2 through the diodes. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (IT = 1mA) | VBR | 25.65 | 27 | 28.35 | V | IT = 1mA | 2 |
| Maximum Reverse Leakage Current | IR | 50 | nA | VRWM = 22V | 2 | ||
| Clamping Voltage | VC | 38 | V | IPP = 1A | 2 | ||
| Junction Capacitance | Cj | 60 | pF | f=1MHz, Level=50mV, VR=0V | 2 | ||
| Maximum Temperature Coefficient of VBR | θVBR | 24.3 | mV/°C | 2 | |||
| Forward Voltage | VF | 0.9 | V | IF = 10 mA | 2 | ||
| Peak Power Dissipation | Ppk | 40 | W | @ 1.0 ms, non-repetitive current pulse (Note 1) | 1 | ||
| Total Power Dissipation | PD | 250 | mW | @TA=25°C (Note 2) | 1 | ||
| Thermal Resistance Junction-to-Ambient | RθJA | 500 | °C/W | Note 2 | 1 | ||
| Lead Solder Temperature | TL | 260 | °C | 10 second duration | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Junction Temperature Range | TJ | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
S-LMBZ27VALT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
s-lmbz27valt1g-etched.step/s-lmbz27valt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s-lmbz27valt1g.step/s-lmbz27valt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
83ac60323fa5d4df, retrieved 2026-10-18, 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).
# S-LMBZ27VALT1G
**LRC** · ESD And Surge Protection (TVS/ESD) · SOT-23
S-LMBZ27VALT1G 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 | K1 | passive | Cathode of the first Zener diode (diode 1 to common anode pin 3), 27 V nominal breakdown (25.65 V to 28.35 V at IT = 1 mA) for ESD protection. |
| 2 | K2 | passive | Cathode of the second Zener diode (diode 2 to common anode pin 3), 27 V nominal breakdown (25.65 V to 28.35 V at IT = 1 mA) for ESD protection. |
| 3 | A | passive | Common anode of both Zener diodes, connected to the two cathode pins 1 and 2 through the diodes. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (IT = 1mA) | VBR | 25.65 | 27 | 28.35 | V | IT = 1mA | 2 |
| Maximum Reverse Leakage Current | IR | | | 50 | nA | VRWM = 22V | 2 |
| Clamping Voltage | VC | | | 38 | V | IPP = 1A | 2 |
| Junction Capacitance | Cj | | | 60 | pF | f=1MHz, Level=50mV, VR=0V | 2 |
| Maximum Temperature Coefficient of VBR | θVBR | | | 24.3 | mV/°C | | 2 |
| Forward Voltage | VF | | | 0.9 | V | IF = 10 mA | 2 |
| Peak Power Dissipation | Ppk | | | 40 | W | @ 1.0 ms, non-repetitive current pulse (Note 1) | 1 |
| Total Power Dissipation | PD | | | 250 | mW | @TA=25°C (Note 2) | 1 |
| Thermal Resistance Junction-to-Ambient | RθJA | | | 500 | °C/W | Note 2 | 1 |
| Lead Solder Temperature | TL | | | 260 | °C | 10 second duration | 1 |
| Storage Temperature Range | Tstg | -55 | | 150 | °C | | 1 |
| Junction Temperature Range | TJ | -55 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `S-LMBZ27VALT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `s-lmbz27valt1g-etched.step` / `s-lmbz27valt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s-lmbz27valt1g.step` / `s-lmbz27valt1g.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/8602840281133957120) (6 pp, sha256 `83ac60323fa5d4df`, retrieved 2026-10-18, 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/s-lmbz27valt1g-datasheet.pdf)