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J5-MM1Z18B 2%
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GOODWORK Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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J5-MM1Z18B 2%
GOODWORK · Zener Diodes · SOD-123
J5-MM1Z18B 2% from GOODWORK, in a SOD-123. 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 end marked by the color band; the 18 V Zener (MM1Z18B, 17.64-18.36 V at IZT = 5 mA) is reverse biased with this pin positive. |
| 2 | A | passive | Anode, the end opposite the color band; in a 500 mW Zener the forward voltage is 0.9 V max at IF = 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GOODWORK |
| Package | SOD-123 |
| 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 VZT (Min / Nom / Max) | VZT | 17.64 | 18 | 18.36 | V | at IZT = 5 mA; VZT tested with pulses (20 ms) | 3 |
| Dynamic impedance ZZT (max) | ZZT | 45 | Ω | at IZT = 5 mA | 3 | ||
| Reverse current IR (max) | IR | 0.1 | μA | at VR = 13 V | 3 | ||
| Forward voltage VF (max) | VF | 0.9 | V | at IF = 10 mA | 1 | ||
| Power dissipation Ptot | Ptot | 500 | mW | Ta = 25℃ | 1 | ||
| Junction temperature TJ | TJ | 150 | ℃ | 1 | |||
| Storage temperature range Tstg | Tstg | -65 | 150 | ℃ | 1 | ||
| Thermal resistance junction to ambient air RthA (max) | RthA | 340 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
J5-MM1Z18B 2% - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
j5-mm1z18b-2-etched.step/j5-mm1z18b-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);j5-mm1z18b-2.step/j5-mm1z18b-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GOODWORK datasheet (5 pp, sha256
653d0581d0f1796a, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# J5-MM1Z18B 2%
**GOODWORK** · Zener Diodes · SOD-123
J5-MM1Z18B 2% from GOODWORK, in a SOD-123. 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 end marked by the color band; the 18 V Zener (MM1Z18B, 17.64-18.36 V at IZT = 5 mA) is reverse biased with this pin positive. |
| 2 | A | passive | Anode, the end opposite the color band; in a 500 mW Zener the forward voltage is 0.9 V max at IF = 10 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GOODWORK |
| Package | SOD-123 |
| 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 VZT (Min / Nom / Max) | VZT | 17.64 | 18 | 18.36 | V | at IZT = 5 mA; VZT tested with pulses (20 ms) | 3 |
| Dynamic impedance ZZT (max) | ZZT | | | 45 | Ω | at IZT = 5 mA | 3 |
| Reverse current IR (max) | IR | | | 0.1 | μA | at VR = 13 V | 3 |
| Forward voltage VF (max) | VF | | | 0.9 | V | at IF = 10 mA | 1 |
| Power dissipation Ptot | Ptot | | | 500 | mW | Ta = 25℃ | 1 |
| Junction temperature TJ | TJ | | | 150 | ℃ | | 1 |
| Storage temperature range Tstg | Tstg | -65 | | 150 | ℃ | | 1 |
| Thermal resistance junction to ambient air RthA (max) | RthA | | | 340 | ℃/W | | 1 |
## CAD (KiCad official)
- Symbol: `J5-MM1Z18B 2%`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `j5-mm1z18b-2-etched.step` / `j5-mm1z18b-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `j5-mm1z18b-2.step` / `j5-mm1z18b-2.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [GOODWORK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757963172139810816) (5 pp, sha256 `653d0581d0f1796a`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/j5-mm1z18b-2-datasheet.pdf)