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MMBZ5242B_R1_00001
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PANJIT International Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MMBZ5242B_R1_00001
PANJIT International · Zener Diodes · SOT-23
MMBZ5242B_R1_00001 from PANJIT International, 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 | A | passive | Zener anode, the lower-left lead of the SOT-23 single-diode symbol (410 mW rating, Vz 12 V nominal for MMBZ5242B). |
| 2 | NC | unconnected | No internal connection; the lower-right lead of the single-diode SOT-23 symbol is not wired to the diode. |
| 3 | K | passive | Zener cathode, the top single lead of the SOT-23 package, connected to the cathode bar of the diode symbol. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (nominal 12 V, min/max at IZT) | VZ | 11.4 | 12 | 12.6 | V | IZT = 20 mA | 2 |
| Max zener impedance | ZZT | 30 | Ω | IZT = 20 mA | 2 | ||
| Max zener impedance (knee) | ZZK | 600 | Ω | IZK = 0.25 mA | 2 | ||
| Max reverse leakage current | IR | 2 | μA | VR = 9.1 V | 2 | ||
| Maximum power dissipation | PD | 410 | mW | at 25°C, Notes A (mounted on 100 mm² copper areas) | 1 | ||
| Operating junction and storage temperature range | TJ | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
MMBZ5242B_R1_00001 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbz5242b-r1-00001-etched.step/mmbz5242b-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbz5242b-r1-00001.step/mmbz5242b-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (6 pp, sha256
676e362ba6c828b5, retrieved 2026-10-17, 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).
# MMBZ5242B_R1_00001
**PANJIT International** · Zener Diodes · SOT-23
MMBZ5242B_R1_00001 from PANJIT International, 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 | A | passive | Zener anode, the lower-left lead of the SOT-23 single-diode symbol (410 mW rating, Vz 12 V nominal for MMBZ5242B). |
| 2 | NC | unconnected | No internal connection; the lower-right lead of the single-diode SOT-23 symbol is not wired to the diode. |
| 3 | K | passive | Zener cathode, the top single lead of the SOT-23 package, connected to the cathode bar of the diode symbol. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (nominal 12 V, min/max at IZT) | VZ | 11.4 | 12 | 12.6 | V | IZT = 20 mA | 2 |
| Max zener impedance | ZZT | | | 30 | Ω | IZT = 20 mA | 2 |
| Max zener impedance (knee) | ZZK | | | 600 | Ω | IZK = 0.25 mA | 2 |
| Max reverse leakage current | IR | | | 2 | μA | VR = 9.1 V | 2 |
| Maximum power dissipation | PD | | | 410 | mW | at 25°C, Notes A (mounted on 100 mm² copper areas) | 1 |
| Operating junction and storage temperature range | TJ | -55 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `MMBZ5242B_R1_00001`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbz5242b-r1-00001-etched.step` / `mmbz5242b-r1-00001-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbz5242b-r1-00001.step` / `mmbz5242b-r1-00001.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [PANJIT International datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884456341966848) (6 pp, sha256 `676e362ba6c828b5`, retrieved 2026-10-17, 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/mmbz5242b-r1-00001-datasheet.pdf)