component
HZ12B2
Public Made by Adomby adom
ST(Semtech) Zener Diodes, DO-35. 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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HZ12B2
ST(Semtech) · Zener Diodes · DO-35
HZ12B2 from ST(Semtech), in a DO-35. 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 | 1 | passive | Terminal 1 of an unpolarised inductor or ferrite bead; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised inductor or ferrite bead; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| Package | DO-35 |
| 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 | 12.6 | 13.1 | V | at IZT = 5 mA; tested with pulses tp = 20 ms | 3 | |
| Reverse leakage current | IR | 1 | µA | at VR = 9.5 V | 3 | ||
| Dynamic resistance | ZZT | 35 | Ω | at IZT = 5 mA | 3 | ||
| Power dissipation | Ptot | 500 | mW | Ta = 25 °C | 1 | ||
| Junction temperature | Tj | 175 | °C | 1 | |||
| Storage temperature range | Tstg | -55 | 175 | °C | 1 |
CAD (KiCad official)
- Symbol:
HZ12B2 - Footprint:
Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal - 3D model: DO-35 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST(Semtech) datasheet (4 pp, sha256
8ffbe650c32c30c5, retrieved 2026-10-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# HZ12B2
**ST(Semtech)** · Zener Diodes · DO-35
HZ12B2 from ST(Semtech), in a DO-35. 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 | 1 | passive | Terminal 1 of an unpolarised inductor or ferrite bead; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised inductor or ferrite bead; either orientation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| Package | DO-35 |
| 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 | 12.6 | | 13.1 | V | at IZT = 5 mA; tested with pulses tp = 20 ms | 3 |
| Reverse leakage current | IR | | | 1 | µA | at VR = 9.5 V | 3 |
| Dynamic resistance | ZZT | | | 35 | Ω | at IZT = 5 mA | 3 |
| Power dissipation | Ptot | | | 500 | mW | Ta = 25 °C | 1 |
| Junction temperature | Tj | | | 175 | °C | | 1 |
| Storage temperature range | Tstg | -55 | | 175 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `HZ12B2`
- Footprint: `Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal`
- 3D model: DO-35 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ST(Semtech) datasheet](docs/hz12b2-datasheet.pdf) (4 pp, sha256 `8ffbe650c32c30c5`, retrieved 2026-10-24, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/hz12b2-datasheet.pdf)