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HZ22-2
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ST(Semtech) Zener Diodes, DO-35. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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HZ22-2
ST(Semtech) · Zener Diodes · DO-35
HZ22-2 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 | K | passive | Cathode, marked by the cathode band on the glass DO-35 body; zener voltage VZ of HZ22-2 is 21.6 V min to 22.6 V max at IZT = 2 mA. |
| 2 | A | passive | Anode; the HZ22-2 has a forward voltage of 1 V max at IF = 100 mA and a maximum power dissipation of 500 mW. |
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 | 21.6 | 22.6 | V | IZT = 2 mA, Ta = 25 °C, tested with pulses tp = 20 ms | 3 | |
| Reverse Leakage Current | IR | 1 | µA | VR = 17 V, Ta = 25 °C | 3 | ||
| Dynamic Resistance | ZZT | 65 | Ω | IZT = 2 mA, Ta = 25 °C | 3 | ||
| Forward Voltage | VF | 1 | V | IF = 100 mA, Ta = 25 °C | 1 | ||
| Power Dissipation | Ptot | 500 | mW | Ta = 25 °C | 1 | ||
| Junction Temperature | Tj | 175 | °C | Ta = 25 °C | 1 | ||
| Storage Temperature Range | Tstg | -55 | 175 | °C | Ta = 25 °C | 1 |
CAD (KiCad official)
- Symbol:
HZ22-2 - 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 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# HZ22-2
**ST(Semtech)** · Zener Diodes · DO-35
HZ22-2 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 | K | passive | Cathode, marked by the cathode band on the glass DO-35 body; zener voltage VZ of HZ22-2 is 21.6 V min to 22.6 V max at IZT = 2 mA. |
| 2 | A | passive | Anode; the HZ22-2 has a forward voltage of 1 V max at IF = 100 mA and a maximum power dissipation of 500 mW. |
## 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 | 21.6 | | 22.6 | V | IZT = 2 mA, Ta = 25 °C, tested with pulses tp = 20 ms | 3 |
| Reverse Leakage Current | IR | | | 1 | µA | VR = 17 V, Ta = 25 °C | 3 |
| Dynamic Resistance | ZZT | | | 65 | Ω | IZT = 2 mA, Ta = 25 °C | 3 |
| Forward Voltage | VF | | | 1 | V | IF = 100 mA, Ta = 25 °C | 1 |
| Power Dissipation | Ptot | | | 500 | mW | Ta = 25 °C | 1 |
| Junction Temperature | Tj | | | 175 | °C | Ta = 25 °C | 1 |
| Storage Temperature Range | Tstg | -55 | | 175 | °C | Ta = 25 °C | 1 |
## CAD (KiCad official)
- Symbol: `HZ22-2`
- 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/hz22-2-datasheet.pdf) (4 pp, sha256 `8ffbe650c32c30c5`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/hz22-2-datasheet.pdf)