component
SMAZ22-MS
Public Made by Adomby adom
MSKSEMI Zener Diodes, SMA. 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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SMAZ22-MS
MSKSEMI · Zener Diodes · SMA
SMAZ22-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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
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 (nominal 22.0 V, min/max at IZT) | VZ | 20.9 | 22 | 23.1 | V | @ IZT = 25 mA; short duration test pulse (Note 2) | 3 |
| Zener voltage tolerance (standard VZ tolerance) | -5 | 5 | % | Standard VZ tolerance per datasheet features; SMAZ22-MS has no tolerance letter in its part number | 2 | ||
| Maximum reverse leakage current | IR | 0.5 | μA | @ VR = 16.7 V | 3 | ||
| Maximum Zener impedance | ZZT | 15 | Ω | @ IZT = 25 mA | 3 | ||
| Maximum Zener impedance (knee) | ZZK | 180 | Ω | @ IZK = 1.0 mA | 3 | ||
| Maximum DC Zener current | IZM | 45 | mA | PCB mounted on 1.0" x 0.85" x 0.062" copper pads (Note 1) | 3 | ||
| DC power dissipation | PD | 1 | W | at Ta = 50 °C (Note 1) | 2 | ||
| Maximum forward voltage | VF | 1.2 | V | at IF = 200 mA | 2 | ||
| Junction and storage temperature range | TSTG | -65 | 150 | °C | 2 | ||
| Thermal resistance junction to ambient | RθJA | 125 | °C | Junction to ambient (Note 1) | 2 |
CAD (KiCad official)
- Symbol:
SMAZ22-MS - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
smaz22-ms-etched.step/smaz22-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaz22-ms.step/smaz22-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (5 pp, sha256
75b1764359d5e887, retrieved 2026-10-15, 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).
# SMAZ22-MS
**MSKSEMI** · Zener Diodes · SMA
SMAZ22-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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## 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 (nominal 22.0 V, min/max at IZT) | VZ | 20.9 | 22 | 23.1 | V | @ IZT = 25 mA; short duration test pulse (Note 2) | 3 |
| Zener voltage tolerance (standard VZ tolerance) | | -5 | | 5 | % | Standard VZ tolerance per datasheet features; SMAZ22-MS has no tolerance letter in its part number | 2 |
| Maximum reverse leakage current | IR | | | 0.5 | μA | @ VR = 16.7 V | 3 |
| Maximum Zener impedance | ZZT | | | 15 | Ω | @ IZT = 25 mA | 3 |
| Maximum Zener impedance (knee) | ZZK | | | 180 | Ω | @ IZK = 1.0 mA | 3 |
| Maximum DC Zener current | IZM | | | 45 | mA | PCB mounted on 1.0" x 0.85" x 0.062" copper pads (Note 1) | 3 |
| DC power dissipation | PD | | | 1 | W | at Ta = 50 °C (Note 1) | 2 |
| Maximum forward voltage | VF | | | 1.2 | V | at IF = 200 mA | 2 |
| Junction and storage temperature range | TSTG | -65 | | 150 | °C | | 2 |
| Thermal resistance junction to ambient | RθJA | | | 125 | °C | Junction to ambient (Note 1) | 2 |
## CAD (KiCad official)
- Symbol: `SMAZ22-MS`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `smaz22-ms-etched.step` / `smaz22-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaz22-ms.step` / `smaz22-ms.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603387202240069632) (5 pp, sha256 `75b1764359d5e887`, retrieved 2026-10-15, 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/smaz22-ms-datasheet.pdf)