component
PTZ22B-MS
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MSKSEMI Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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PTZ22B-MS
MSKSEMI · Zener Diodes · SMA
PTZ22B-MS from MSKSEMI, in a SMA. 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, identified by the color band on the SMA body; the 22 V zener (VZ 22.0 V min to 24.5 V max at IZT 10 mA) regulates with this pin positive relative to the anode. |
| 2 | A | passive | Anode of the zener diode; the datasheet gives no explicit pin numbering, only that the color band denotes the cathode end. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SMA |
| 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 | 22 | 23.85 | 24.5 | V | Ta = 25 °C, IZT = 10 mA | 3 |
| Test Current | IZT | 10 | mA | Ta = 25 °C | 3 | ||
| Maximum Zener Impedance | ZZ | 14 | Ω | IZ = 10 mA | 3 | ||
| Maximum Reverse Current | IR | 10 | μA | VR = 17.0 V | 3 | ||
| Typical Temperature Coefficient | 19.4 | mV/ºC | IZ = 10 mA | 3 | |||
| Power Dissipation | PD | 1 | W | Rating at 25 °C ambient temperature | 2 | ||
| Junction Temperature | TJ | 150 | ºC | Rating at 25 °C ambient temperature | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ºC | 2 |
CAD (KiCad official)
- Symbol:
PTZ22B-MS - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
ptz22b-ms-etched.step/ptz22b-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ptz22b-ms.step/ptz22b-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (5 pp, sha256
b667407134cededf, retrieved 2026-10-22, 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).
# PTZ22B-MS
**MSKSEMI** · Zener Diodes · SMA
PTZ22B-MS from MSKSEMI, in a SMA. 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, identified by the color band on the SMA body; the 22 V zener (VZ 22.0 V min to 24.5 V max at IZT 10 mA) regulates with this pin positive relative to the anode. |
| 2 | A | passive | Anode of the zener diode; the datasheet gives no explicit pin numbering, only that the color band denotes the cathode end. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SMA |
| 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 | 22 | 23.85 | 24.5 | V | Ta = 25 °C, IZT = 10 mA | 3 |
| Test Current | IZT | | 10 | | mA | Ta = 25 °C | 3 |
| Maximum Zener Impedance | ZZ | | | 14 | Ω | IZ = 10 mA | 3 |
| Maximum Reverse Current | IR | | | 10 | μA | VR = 17.0 V | 3 |
| Typical Temperature Coefficient | | | 19.4 | | mV/ºC | IZ = 10 mA | 3 |
| Power Dissipation | PD | | | 1 | W | Rating at 25 °C ambient temperature | 2 |
| Junction Temperature | TJ | | | 150 | ºC | Rating at 25 °C ambient temperature | 2 |
| Storage Temperature Range | TSTG | -55 | | 150 | ºC | | 2 |
## CAD (KiCad official)
- Symbol: `PTZ22B-MS`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `ptz22b-ms-etched.step` / `ptz22b-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ptz22b-ms.step` / `ptz22b-ms.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MSKSEMI datasheet](docs/ptz22b-ms-datasheet.pdf) (5 pp, sha256 `b667407134cededf`, retrieved 2026-10-22, 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/ptz22b-ms-datasheet.pdf)