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S-LMSZ5231BT1G
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LRC Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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S-LMSZ5231BT1G
LRC · Zener Diodes · SOD-123
S-LMSZ5231BT1G from LRC, in a SOD-123. 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 | Cathode | passive | Cathode terminal of the Zener diode; the datasheet's SOD-123 Style 1 pinout identifies pin 1 as cathode. |
| 2 | Anode | passive | Anode terminal of the Zener diode; the datasheet's SOD-123 Style 1 pinout identifies pin 2 as anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 4.85 | 5.1 | 5.36 | V | @ IZT = 20 mA; ±5% nominal Zener voltage tolerance | 2 |
| Maximum Zener Impedance | ZZT | 17 | Ω | @ IZT = 20 mA | 2 | ||
| Maximum Zener Impedance | ZZK | 1600 | Ω | @ IZK = 0.25 mA | 2 | ||
| Reverse Leakage Current | IR | 5 | μA | @ VR = 2 V | 2 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10 mA | 2 | ||
| Total Power Dissipation on FR-5 Board | PD | 500 | mW | On FR-5 board (Note 1), @ TL = 75°C; derated 6.7 mW/°C above 75°C | 1 | ||
| Junction and Storage Temperature Range | TJ,Tstg | -55 | 150 | °C | 1 | ||
| Thermal Resistance, Junction-to-Ambient (Note 2) | RΘJA | 340 | °C/W | Note 2: infrared scan method | 1 | ||
| Thermal Resistance, Junction-to-Lead (Note 2) | RΘJL | 150 | °C/W | Note 2: infrared scan method | 1 |
CAD (KiCad official)
- Symbol:
S-LMSZ5231BT1G - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
s-lmsz5231bt1g-etched.step/s-lmsz5231bt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s-lmsz5231bt1g.step/s-lmsz5231bt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (4 pp, sha256
a63d6a78bd80f175, 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).
# S-LMSZ5231BT1G
**LRC** · Zener Diodes · SOD-123
S-LMSZ5231BT1G from LRC, in a SOD-123. 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 | Cathode | passive | Cathode terminal of the Zener diode; the datasheet's SOD-123 Style 1 pinout identifies pin 1 as cathode. |
| 2 | Anode | passive | Anode terminal of the Zener diode; the datasheet's SOD-123 Style 1 pinout identifies pin 2 as anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOD-123 |
| Category | Diodes |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 4.85 | 5.1 | 5.36 | V | @ IZT = 20 mA; ±5% nominal Zener voltage tolerance | 2 |
| Maximum Zener Impedance | ZZT | | | 17 | Ω | @ IZT = 20 mA | 2 |
| Maximum Zener Impedance | ZZK | | | 1600 | Ω | @ IZK = 0.25 mA | 2 |
| Reverse Leakage Current | IR | | | 5 | μA | @ VR = 2 V | 2 |
| Forward Voltage | VF | | | 0.9 | V | @ IF = 10 mA | 2 |
| Total Power Dissipation on FR-5 Board | PD | | | 500 | mW | On FR-5 board (Note 1), @ TL = 75°C; derated 6.7 mW/°C above 75°C | 1 |
| Junction and Storage Temperature Range | TJ,Tstg | -55 | | 150 | °C | | 1 |
| Thermal Resistance, Junction-to-Ambient (Note 2) | RΘJA | | 340 | | °C/W | Note 2: infrared scan method | 1 |
| Thermal Resistance, Junction-to-Lead (Note 2) | RΘJL | | 150 | | °C/W | Note 2: infrared scan method | 1 |
## CAD (KiCad official)
- Symbol: `S-LMSZ5231BT1G`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `s-lmsz5231bt1g-etched.step` / `s-lmsz5231bt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s-lmsz5231bt1g.step` / `s-lmsz5231bt1g.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/8588911812331257856) (4 pp, sha256 `a63d6a78bd80f175`, retrieved 2026-10-18, 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/s-lmsz5231bt1g-datasheet.pdf)