component
LMBZ5229BLT1G
Public Made by Adomby adom
LRC Zener Diodes, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
LMBZ5229BLT1G
LRC · Zener Diodes · SOT-23-3
LMBZ5229BLT1G from LRC, in a SOT-23-3. 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 per the stated pinout (1-Anode); the datasheet gives no pin-specific voltage or current limit for this terminal beyond the device ratings. |
| 2 | NC | unconnected | No connection; the datasheet lists pin 2 as No Connection and it should be left unconnected. |
| 3 | Cathode | passive | Cathode terminal, identified by the polarity band on the package; the device is a Zener regulator with nominal VZ of 4.3 V (4.08 V min, 4.52 V max) at IZT 20 mA for LMBZ5229BLT1G. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23-3 |
| 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), nominal 4.3 V | VZ | 4.08 | 4.3 | 4.52 | Volts | @ IZT = 20 mA; pulse test at TA = 25°C (Note 3) | 3 |
| Maximum Zener Impedance | ZZT | 22 | 22 | Ω | @ IZT = 20 mA | 3 | |
| Maximum Zener Impedance | ZZK | 2000 | 2000 | Ω | @ IZK = 0.25 mA | 3 | |
| Reverse Leakage Current | IR | 5 | 5 | A | @ VR = 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 board, 1.0 X 0.75 X 0.62 in. (Note 1) | 1 | ||
| Derating above 25°C, FR-5 Board | PD | 1.8 | mW/°C | derated above TA = 25°C; FR-5 board (Note 1) | 1 | ||
| Total Power Dissipation on Alumina Substrate (Note 2) | PD | 300 | mW | @ TA = 25°C; alumina substrate 0.4 X 0.3 X 0.024 in. (Note 2) | 1 | ||
| Derating above 25°C, Alumina Substrate | PD | 2.4 | mW/°C | derated above TA = 25°C; alumina substrate (Note 2) | 1 | ||
| Thermal Resistance, Junction-to-Ambient (FR-5 Board) | RθJA | 556 | °C/W | FR-5 board (Note 1) | 1 | ||
| Thermal Resistance, Junction-to-Ambient (Alumina Substrate) | RθJA | 417 | °C/W | Alumina substrate (Note 2) | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
LMBZ5229BLT1G - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
lmbz5229blt1g-etched.step/lmbz5229blt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmbz5229blt1g.step/lmbz5229blt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (6 pp, sha256
2c2e315ad416a912, retrieved 2026-10-17, 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).
# LMBZ5229BLT1G
**LRC** · Zener Diodes · SOT-23-3
LMBZ5229BLT1G from LRC, in a SOT-23-3. 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 per the stated pinout (1-Anode); the datasheet gives no pin-specific voltage or current limit for this terminal beyond the device ratings. |
| 2 | NC | unconnected | No connection; the datasheet lists pin 2 as No Connection and it should be left unconnected. |
| 3 | Cathode | passive | Cathode terminal, identified by the polarity band on the package; the device is a Zener regulator with nominal VZ of 4.3 V (4.08 V min, 4.52 V max) at IZT 20 mA for LMBZ5229BLT1G. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23-3 |
| 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), nominal 4.3 V | VZ | 4.08 | 4.3 | 4.52 | Volts | @ IZT = 20 mA; pulse test at TA = 25°C (Note 3) | 3 |
| Maximum Zener Impedance | ZZT | | 22 | 22 | Ω | @ IZT = 20 mA | 3 |
| Maximum Zener Impedance | ZZK | | 2000 | 2000 | Ω | @ IZK = 0.25 mA | 3 |
| Reverse Leakage Current | IR | | 5 | 5 | A | @ VR = 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 board, 1.0 X 0.75 X 0.62 in. (Note 1) | 1 |
| Derating above 25°C, FR-5 Board | PD | | | 1.8 | mW/°C | derated above TA = 25°C; FR-5 board (Note 1) | 1 |
| Total Power Dissipation on Alumina Substrate (Note 2) | PD | | | 300 | mW | @ TA = 25°C; alumina substrate 0.4 X 0.3 X 0.024 in. (Note 2) | 1 |
| Derating above 25°C, Alumina Substrate | PD | | | 2.4 | mW/°C | derated above TA = 25°C; alumina substrate (Note 2) | 1 |
| Thermal Resistance, Junction-to-Ambient (FR-5 Board) | RθJA | | | 556 | °C/W | FR-5 board (Note 1) | 1 |
| Thermal Resistance, Junction-to-Ambient (Alumina Substrate) | RθJA | | | 417 | °C/W | Alumina substrate (Note 2) | 1 |
| Junction and Storage Temperature Range | TJ, Tstg | -65 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `LMBZ5229BLT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `lmbz5229blt1g-etched.step` / `lmbz5229blt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmbz5229blt1g.step` / `lmbz5229blt1g.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/8590226493000753153) (6 pp, sha256 `2c2e315ad416a912`, retrieved 2026-10-17, 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/lmbz5229blt1g-datasheet.pdf)