component
BZT52B18 RHG
Public Made by Adomby adom
Taiwan Semiconductor(Taiwan Semicon) Zener Diodes, SOD-123F. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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BZT52B18 RHG
Taiwan Semiconductor(Taiwan Semicon) · Zener Diodes · SOD-123F
BZT52B18 RHG from Taiwan Semiconductor(Taiwan Semicon), in a SOD-123F. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Taiwan Semiconductor(Taiwan Semicon) |
| Package | SOD-123F |
| 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 | 17.64 | 18 | 18.36 | V | IZT = 5 mA | 2 |
| Zener voltage tolerance | VZ | -2 | 2 | % | standard tolerance on nominal zener voltage | 2 | |
| Test current | IZT | 5 | mA | 2 | |||
| Maximum zener impedance | ZZT | 45 | Ohm | @ IZT | 2 | ||
| Maximum zener impedance | ZZK | 212 | Ohm | @ IZK = 1 mA | 2 | ||
| Knee test current | IZK | 1 | mA | 2 | |||
| Maximum reverse current | IR | 0.045 | μA | VR = 12.6 V | 2 | ||
| Forward voltage | VF | 1 | V | IF = 10 mA | 2 | ||
| Power dissipation | PD | 500 | mW | 1 | |||
| Thermal resistance junction to ambient | RθJA | 350 | °C/W | Valid provided that electrodes are kept at ambient temperature | 1 | ||
| Junction temperature | TJ | 150 | °C | 1 | |||
| Storage temperature | TSTG | -65 | 150 | °C | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | - Matte tin (Sn) lead finish with Nickel (Ni) under plate - Halogen-free according to IEC 61249-2-21 | 1 |
CAD (KiCad official)
- Symbol:
BZT52B18 RHG - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123F (KiCad packages3D, STEP)
- 3D model files:
bzt52b18-rhg-etched.step/bzt52b18-rhg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52b18-rhg.step/bzt52b18-rhg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Taiwan Semiconductor(Taiwan Semicon) datasheet (5 pp, sha256
1773a0714c3be3c6, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# BZT52B18 RHG
**Taiwan Semiconductor(Taiwan Semicon)** · Zener Diodes · SOD-123F
BZT52B18 RHG from Taiwan Semiconductor(Taiwan Semicon), in a SOD-123F. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Taiwan Semiconductor(Taiwan Semicon) |
| Package | SOD-123F |
| 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 | 17.64 | 18 | 18.36 | V | IZT = 5 mA | 2 |
| Zener voltage tolerance | VZ | -2 | | 2 | % | standard tolerance on nominal zener voltage | 2 |
| Test current | IZT | | 5 | | mA | | 2 |
| Maximum zener impedance | ZZT | | | 45 | Ohm | @ IZT | 2 |
| Maximum zener impedance | ZZK | | | 212 | Ohm | @ IZK = 1 mA | 2 |
| Knee test current | IZK | | 1 | | mA | | 2 |
| Maximum reverse current | IR | | | 0.045 | μA | VR = 12.6 V | 2 |
| Forward voltage | VF | | | 1 | V | IF = 10 mA | 2 |
| Power dissipation | PD | | | 500 | mW | | 1 |
| Thermal resistance junction to ambient | RθJA | | | 350 | °C/W | Valid provided that electrodes are kept at ambient temperature | 1 |
| Junction temperature | TJ | | | 150 | °C | | 1 |
| Storage temperature | TSTG | -65 | | 150 | °C | | 1 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | - Matte tin (Sn) lead finish with Nickel (Ni) under plate - Halogen-free according to IEC 61249-2-21 | 1 |
## CAD (KiCad official)
- Symbol: `BZT52B18 RHG`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123F (KiCad packages3D, STEP)
- 3D model files: `bzt52b18-rhg-etched.step` / `bzt52b18-rhg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52b18-rhg.step` / `bzt52b18-rhg.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Taiwan Semiconductor(Taiwan Semicon) datasheet](docs/bzt52b18-rhg-datasheet.pdf) (5 pp, sha256 `1773a0714c3be3c6`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/bzt52b18-rhg-datasheet.pdf)