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LMBZ5242BLT1G
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LRC Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LMBZ5242BLT1G
LRC · Zener Diodes · SOT-23
LMBZ5242BLT1G 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 | Anode | passive | Anode terminal of the Zener diode; the datasheet pinout is 1-Anode, 2-No Connection, 3-Cathode. |
| 2 | NC | unconnected | No connection on this SOT-23 package, per the datasheet pinout 1-Anode, 2-NC, 3-Cathode. |
| 3 | Cathode | passive | Cathode terminal, indicated by the polarity band on the package; the device regulates at its nominal 12 V Zener voltage (11.40 V min, 12.60 V max at IZT 20 mA) for this MPN. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage | VZ | 11.4 | 12 | 12.6 | V | @ IZT = 20 mA; pulse test at 25°C (Note 3) | 3 |
| Maximum Zener Impedance | ZZT | 30 | Ω | @ IZT = 20 mA | 3 | ||
| Maximum Zener Impedance | ZZK | 600 | Ω | @ IZK = 0.25 mA | 3 | ||
| Reverse Leakage Current | IR | 1 | A | @ VR = 9.1 V | 3 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10 mA | 3 | ||
| Total Power Dissipation on FR-5 Board (Note 1) | PD | 225 | mW | @ TA = 25°C; FR-5 = 1.0 X 0.75 X 0.62 in. | 1 | ||
| Derating above 25°C, FR-5 Board | PD | 1.8 | mW/°C | Derated above TA = 25°C; FR-5 board | 1 | ||
| Total Power Dissipation on Alumina Substrate (Note 2) | PD | 300 | mW | @ TA = 25°C; Alumina = 0.4 X 0.3 X 0.024 in., 99.5% alumina | 1 | ||
| Derating above 25°C, Alumina Substrate | PD | 2.4 | mW/°C | Derated above TA = 25°C; alumina substrate | 1 | ||
| Thermal Resistance Junction-to-Ambient, FR-5 Board | RJA | 556 | °C/W | FR-5 board (Note 1) | 1 | ||
| Thermal Resistance Junction-to-Ambient, Alumina Substrate | RJA | 417 | °C/W | Alumina substrate (Note 2) | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
LMBZ5242BLT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lmbz5242blt1g-etched.step/lmbz5242blt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmbz5242blt1g.step/lmbz5242blt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
2c2e315ad416a912, retrieved 2026-10-19, 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).
# LMBZ5242BLT1G
**LRC** · Zener Diodes · SOT-23
LMBZ5242BLT1G 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 | Anode | passive | Anode terminal of the Zener diode; the datasheet pinout is 1-Anode, 2-No Connection, 3-Cathode. |
| 2 | NC | unconnected | No connection on this SOT-23 package, per the datasheet pinout 1-Anode, 2-NC, 3-Cathode. |
| 3 | Cathode | passive | Cathode terminal, indicated by the polarity band on the package; the device regulates at its nominal 12 V Zener voltage (11.40 V min, 12.60 V max at IZT 20 mA) for this MPN. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage | VZ | 11.4 | 12 | 12.6 | V | @ IZT = 20 mA; pulse test at 25°C (Note 3) | 3 |
| Maximum Zener Impedance | ZZT | | | 30 | Ω | @ IZT = 20 mA | 3 |
| Maximum Zener Impedance | ZZK | | | 600 | Ω | @ IZK = 0.25 mA | 3 |
| Reverse Leakage Current | IR | | | 1 | A | @ VR = 9.1 V | 3 |
| Forward Voltage | VF | | | 0.9 | V | @ IF = 10 mA | 3 |
| Total Power Dissipation on FR-5 Board (Note 1) | PD | | | 225 | mW | @ TA = 25°C; FR-5 = 1.0 X 0.75 X 0.62 in. | 1 |
| Derating above 25°C, FR-5 Board | PD | | | 1.8 | mW/°C | Derated above TA = 25°C; FR-5 board | 1 |
| Total Power Dissipation on Alumina Substrate (Note 2) | PD | | | 300 | mW | @ TA = 25°C; Alumina = 0.4 X 0.3 X 0.024 in., 99.5% alumina | 1 |
| Derating above 25°C, Alumina Substrate | PD | | | 2.4 | mW/°C | Derated above TA = 25°C; alumina substrate | 1 |
| Thermal Resistance Junction-to-Ambient, FR-5 Board | RJA | | | 556 | °C/W | FR-5 board (Note 1) | 1 |
| Thermal Resistance Junction-to-Ambient, Alumina Substrate | RJA | | | 417 | °C/W | Alumina substrate (Note 2) | 1 |
| Junction and Storage Temperature Range | TJ, Tstg | -65 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `LMBZ5242BLT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lmbz5242blt1g-etched.step` / `lmbz5242blt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmbz5242blt1g.step` / `lmbz5242blt1g.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/8586182490511298560) (6 pp, sha256 `2c2e315ad416a912`, retrieved 2026-10-19, 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/lmbz5242blt1g-datasheet.pdf)