component
MM3Z22BW
Public Made by Adomby adom
JSMSEMI Zener Diodes, SOD-323. 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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MM3Z22BW
JSMSEMI · Zener Diodes · SOD-323
MM3Z22BW from JSMSEMI, in a SOD-323. 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 | JSMSEMI |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Voltage tolerance (B-series) | -2 | 2 | % | B-series | 1 | ||
| Zener dynamic impedance | ZZT | 55 | Ω | at IZT = 5 mA | 2 | ||
| Reverse current | IR | 0.1 | μA | VR = 17 V | 2 | ||
| Forward voltage | VF | 0.9 | V | IF = 10 mA | 1 | ||
| Power dissipation | PD | 400 | mW | Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint | 1 | ||
| Junction temperature range | TJ | -55 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -65 | 150 | °C | 1 | ||
| Thermal resistance, junction-to-ambient | RθJA | 313 | °C/W | Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint | 1 |
CAD (KiCad official)
- Symbol:
MM3Z22BW - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
mm3z22bw-etched.step/mm3z22bw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mm3z22bw.step/mm3z22bw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (4 pp, sha256
25cc80d24f84e9f6, 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).
# MM3Z22BW
**JSMSEMI** · Zener Diodes · SOD-323
MM3Z22BW from JSMSEMI, in a SOD-323. 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 | JSMSEMI |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Voltage tolerance (B-series) | | -2 | | 2 | % | B-series | 1 |
| Zener dynamic impedance | ZZT | | | 55 | Ω | at IZT = 5 mA | 2 |
| Reverse current | IR | | | 0.1 | μA | VR = 17 V | 2 |
| Forward voltage | VF | | | 0.9 | V | IF = 10 mA | 1 |
| Power dissipation | PD | | | 400 | mW | Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint | 1 |
| Junction temperature range | TJ | -55 | | 150 | °C | | 1 |
| Storage temperature range | TSTG | -65 | | 150 | °C | | 1 |
| Thermal resistance, junction-to-ambient | RθJA | | | 313 | °C/W | Device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint | 1 |
## CAD (KiCad official)
- Symbol: `MM3Z22BW`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `mm3z22bw-etched.step` / `mm3z22bw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mm3z22bw.step` / `mm3z22bw.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590197817328504832) (4 pp, sha256 `25cc80d24f84e9f6`, 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/mm3z22bw-datasheet.pdf)